Revision: 201033 RCL_3 PDK_3.0.3
authorDremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 14 Sep 2010 21:14:08 +0300
branchRCL_3
changeset 27 2cbbefa9af78
parent 26 3de6c4cf6b67
Revision: 201033 Kit: 201035
mpxmusicplayer/commonui/bwinscw/mpxcommonuiU.DEF
mpxmusicplayer/commonui/eabi/mpxcommonuiU.DEF
mpxmusicplayer/commonui/inc/mpxcommonui.hrh
mpxmusicplayer/commonui/src/mpxalbumartutil.cpp
mpxmusicplayer/commonui/src/mpxcommonuihelper.cpp
mpxplugins/serviceplugins/collectionplugins/inc/mpxdbmanager.h
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/bwinscw/mpxsqlitedbcommonu.def
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/eabi/mpxsqlitedbcommonu.def
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/src/mpxdbcommonutil.cpp
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/src/mpxdbmanager.cpp
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxcollectiondbdef.h
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbalbum.h
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbartist.h
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbcategory.h
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbhandler.h
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbmusic.h
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbpluginqueries.h
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbabstractalbum.cpp
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbalbum.cpp
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbartist.cpp
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbauxiliary.cpp
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbcategory.cpp
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbhandler.cpp
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbmusic.cpp
mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbplugin/src/mpxdbauxiliary.cpp
mpxplugins/serviceplugins/collectionplugins/mpxsqlitepodcastdbplugin/src/mpxdbauxiliary.cpp
mpxplugins/viewplugins/views/collectionviewhg/src/mpxcollectionviewhgcontainer.cpp
mpxplugins/viewplugins/views/collectionviewhg/src/mpxcollectionviewhgimp.cpp
mpxplugins/viewplugins/views/embeddedplaybackview/src/mpxembeddedplaybackviewimp.cpp
musicplayer_plat/mpx_music_player_app_api/inc/mpxcommonuihelper.h
--- a/mpxmusicplayer/commonui/bwinscw/mpxcommonuiU.DEF	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxmusicplayer/commonui/bwinscw/mpxcommonuiU.DEF	Tue Sep 14 21:14:08 2010 +0300
@@ -57,4 +57,5 @@
 	?SetNeedSave@MPXTlsHelper@@SAXH@Z @ 56 NONAME ; void MPXTlsHelper::SetNeedSave(int)
 	??1CMPXLbxExtendedFeatures@@UAE@XZ @ 57 NONAME ; CMPXLbxExtendedFeatures::~CMPXLbxExtendedFeatures(void)
 	?SpeedNaviUpdating@CMPXLbxExtendedFeatures@@QAEXH@Z @ 58 NONAME ; void CMPXLbxExtendedFeatures::SpeedNaviUpdating(int)
+	?IsHostCalendarL@CMPXCommonUiHelper@@QAEHXZ @ 59 NONAME ; int CMPXCommonUiHelper::IsHostCalendarL(void)
 
--- a/mpxmusicplayer/commonui/eabi/mpxcommonuiU.DEF	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxmusicplayer/commonui/eabi/mpxcommonuiU.DEF	Tue Sep 14 21:14:08 2010 +0300
@@ -67,4 +67,5 @@
 	_ZTI16CMPXAlbumArtUtil @ 66 NONAME
 	_ZTV13CMPXImageUtil @ 67 NONAME
 	_ZTV16CMPXAlbumArtUtil @ 68 NONAME
+	_ZN18CMPXCommonUiHelper15IsHostCalendarLEv @ 69 NONAME
 
--- a/mpxmusicplayer/commonui/inc/mpxcommonui.hrh	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxmusicplayer/commonui/inc/mpxcommonui.hrh	Tue Sep 14 21:14:08 2010 +0300
@@ -36,6 +36,7 @@
 #define KMPXBrowserUid2   0x1020724D
 #define KPodcastingAppUid 0x1028190B
 #define KMPXCommonMailUid 0x2001E277
+#define KMPXCalendarUid   0x10005901
 
 #endif  // MPXCOMMONUI_HRH
 
--- a/mpxmusicplayer/commonui/src/mpxalbumartutil.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxmusicplayer/commonui/src/mpxalbumartutil.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -253,6 +253,11 @@
             iObserver->ExtractAlbumArtCompleted( NULL, KErrNotFound );
             }
         } 	
+    else if ( aError == KErrUnderflow || aError == KErrTimedOut || aError == KErrCompletion)
+        {
+        // Abort imaging decoding
+        iObserver->ExtractAlbumArtCompleted( NULL, KErrNotFound );
+        }
     else if (iArtUtil && iFilename)
         {
         TRAPD( err,
@@ -265,7 +270,11 @@
             iObserver->ExtractAlbumArtCompleted( NULL, KErrNotFound );
             }  
         } 
-
+    else        
+        {
+        iObserver->ExtractAlbumArtCompleted( NULL, KErrNotFound );
+        }
+		
     iReqId = 0;
     }
 
--- a/mpxmusicplayer/commonui/src/mpxcommonuihelper.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxmusicplayer/commonui/src/mpxcommonuihelper.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -239,6 +239,21 @@
         }
     return ret;
     }
+     
+// ---------------------------------------------------------------------------
+// Check if the host application is calendar
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TBool CMPXCommonUiHelper::IsHostCalendarL()
+{
+    TBool ret( EFalse );
+    TInt hostUid = MPXTlsHelper::HostUid().iUid;
+    if ( hostUid == KMPXCalendarUid)
+        {
+        ret = ETrue;
+        }
+    return ret;
+}
 
 // ---------------------------------------------------------------------------
 // Check if the host application is browser
--- a/mpxplugins/serviceplugins/collectionplugins/inc/mpxdbmanager.h	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/inc/mpxdbmanager.h	Tue Sep 14 21:14:08 2010 +0300
@@ -316,6 +316,15 @@
         IMPORT_C void EnsureRamSpaceL() ;
 
         /**
+         * overloaded function for calls where string is allready formatted
+         * 
+         * @param  aQuery data base query string
+         * @return RSqlStatement
+         */
+        IMPORT_C RSqlStatement ExecuteSelectQueryL( const TDesC& aQuery );
+        
+        
+        /**
         *  Move DBs from RAMDisk to disks
         */
         //IMPORT_C void BackupDBsL();
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/bwinscw/mpxsqlitedbcommonu.def	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/bwinscw/mpxsqlitedbcommonu.def	Tue Sep 14 21:14:08 2010 +0300
@@ -126,4 +126,5 @@
 	?ExecuteSumQueryL@CMPXDbTable@@IAEHABVTDesC16@@@Z @ 125 NONAME ; int CMPXDbTable::ExecuteSumQueryL(class TDesC16 const &)
 	?ExecuteSumQueryL@CMPXDbTable@@IAEHABVTDesC16@@KK@Z @ 126 NONAME ; int CMPXDbTable::ExecuteSumQueryL(class TDesC16 const &, unsigned long, unsigned long)
 	?AddItemAlbumChangedMessageL@MPXDbCommonUtil@@SAXAAVCMPXMediaArray@@VTMPXItemId@@W4TMPXChangeEventType@@W4TMPXGeneralCategory@@IH1@Z @ 127 NONAME ; void MPXDbCommonUtil::AddItemAlbumChangedMessageL(class CMPXMediaArray &, class TMPXItemId, enum TMPXChangeEventType, enum TMPXGeneralCategory, unsigned int, int, class TMPXItemId)
+	?ExecuteSelectQueryL@CMPXDbManager@@QAE?AVRSqlStatement@@ABVTDesC16@@@Z @ 128 NONAME ; class RSqlStatement CMPXDbManager::ExecuteSelectQueryL(class TDesC16 const &)
 
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/eabi/mpxsqlitedbcommonu.def	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/eabi/mpxsqlitedbcommonu.def	Tue Sep 14 21:14:08 2010 +0300
@@ -139,4 +139,5 @@
 	_ZTV12CMPXResource @ 138 NONAME
 	_ZTV13CMPXDbManager @ 139 NONAME
 	_ZN15MPXDbCommonUtil27AddItemAlbumChangedMessageLER14CMPXMediaArray10TMPXItemId19TMPXChangeEventType19TMPXGeneralCategoryjiS2_ @ 140 NONAME
+	_ZN13CMPXDbManager19ExecuteSelectQueryLERK7TDesC16 @ 141 NONAME
 
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/src/mpxdbcommonutil.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/src/mpxdbcommonutil.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -329,7 +329,8 @@
         extractPos = KMCPathStartPos;     // c:\..., include first '\' of the path
         }
 
-    TBuf<KMaxFileName+KMCIntegerLen> fileName;
+    HBufC* fileNameBuf = HBufC::NewLC(aName.Length()+KMCIntegerLen);
+	TPtr fileName(fileNameBuf->Des());
     if( extractPos )
         {
         // append volume's unique Id to path to maintain uniqueness
@@ -357,7 +358,7 @@
     TInt narrowFileLen(0);
     TPtrC8 narrowFileName;
     #if defined(_UNICODE)
-        narrowFileLen = fileName.Length() * 2;
+        narrowFileLen = fileNameBuf->Des().Length() * 2;
         narrowFileName.Set((TUint8*)fileName.Ptr(), narrowFileLen);
     #else
         narrowFileLen = fileName.Length();
@@ -375,6 +376,9 @@
     TUint32 uniqueId(0);
     uniqueId = aTableId << 28;
     uniqueId |= (ptr[3]&0x0F)<<24 | (ptr[2]<<16) | (ptr[1]<<8) | ptr[0];
+    
+    CleanupStack::PopAndDestroy(fileNameBuf);
+    
     return uniqueId;
     }
 
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/src/mpxdbmanager.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/src/mpxdbmanager.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -2856,6 +2856,18 @@
 #endif //__RAMDISK_PERF_ENABLE    
     }
 
+// ---------------------------------------------------------------------------
+// CMPXDbManager::ExecuteSelectQueryL
+// ---------------------------------------------------------------------------
+//
+EXPORT_C RSqlStatement CMPXDbManager::ExecuteSelectQueryL( const TDesC& aQuery ) 
+    {
+    MPX_FUNC("CMPXDatabase::ExecuteSelectQueryL( const TDesC& aQuery )");
+    HBufC* tmp( aQuery.AllocLC() );
+    RSqlStatement statement( ExecuteSelectQueryOnAllDrivesL( tmp->Des() ) );
+    CleanupStack::PopAndDestroy(tmp);
+    return statement;
+    }
 
 // ---------------------------------------------------------------------------
 // CMPXDbManager::EnsureDiskSpaceL
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxcollectiondbdef.h	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxcollectiondbdef.h	Tue Sep 14 21:14:08 2010 +0300
@@ -28,12 +28,13 @@
 
 // Db filename
 #ifdef ABSTRACTAUDIOALBUM_INCLUDED
-_LIT(KMCDbFile, "mpxv3_1.db");
-_LIT(KMCDbFileEMMC, "mpxv3_1i.db");
+_LIT(KMCDbFile, "mpxv3_2.db");
+_LIT(KMCDbFileEMMC, "mpxv3_2i.db");
 #else 
-_LIT(KMCDbFile, "mpxv3_1n.db");
-_LIT(KMCDbFileEMMC, "mpxv3_1in.db");
+_LIT(KMCDbFile, "mpxv3_2n.db");
+_LIT(KMCDbFileEMMC, "mpxv3_2in.db");
 #endif // ABSTRACTAUDIOALBUM_INCLUDED
+
 // Collection Db resource file
 _LIT(KMPXCollectionDbResourceFile,  "mpxcollectiondbhgres.rsc");
 
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbalbum.h	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbalbum.h	Tue Sep 14 21:14:08 2010 +0300
@@ -29,8 +29,6 @@
 class MMPXDbAlbumObserver
     {
     public:
-        virtual TInt HandleIsUnknownArtistL(TUint32 aId) = 0;
-        virtual HBufC* HandleArtistForAlbumL( const TUint32 aId ) = 0;
         /**
         * HandleAlbumartForAlbumL.
         * @param aId, The album ID.
@@ -38,6 +36,24 @@
         * @returns alternative albumart retrieved in the specified Album.
         */
         virtual HBufC* HandleAlbumartForAlbumL( const TUint32 aId, TPtrC aArt ) = 0;
+               
+        /**
+        * Called when album artist is removed from an album
+        * @param aCategoryId category item ID
+        * @param aDrive drive the category item is on
+        * @param aItemChangedMessages changed mesages array to be updated or NULL
+        */
+        virtual void DeleteAlbumForArtistL(TUint32 aCategoryId,
+            TInt aDrive, CMPXMessageArray* aItemChangedMessages) = 0;
+
+        /**
+        * Called when album artist is added to an album
+        * @param aName name string
+        * @param aArt Album art path
+        * @param aDriveId drive to add the category to
+        * @return the ID of the category item (new or existing)
+        */
+        virtual TUint32 AddAlbumArtistL(const TDesC& aName, const TDesC& aArt, TInt aDriveId) = 0;
     };
 /**
 * Responsible for managing all music databases
@@ -58,7 +74,7 @@
         */
         static CMPXDbAlbum* NewL(CMPXDbManager& aDbManager,
             TMPXGeneralCategory aCategory, MMPXDbAlbumObserver& aObserver);
-
+        
         /**
         * Two-phased constructor.
         * @param aDbManager database manager to use for database interactions
@@ -67,18 +83,18 @@
         */
         static CMPXDbAlbum* NewLC(CMPXDbManager& aDbManager,
             TMPXGeneralCategory aCategory, MMPXDbAlbumObserver& aObserver);
-
+        
         /**
         * Destructor
         */
         virtual ~CMPXDbAlbum();
 
     public:
-
         /**
-        * Add a category item. If the record already exists, its counter will
+        * Add an album item. If the record already exists, its counter will
         * be incremented.
-        * @param aName: This is the name to be entered into the row
+        * @param aCategory category type
+        * @param aMedia: The media object
         * @param aDriveId: The Drive Id the name (category) belongs
         * @param aNewRecord: indicates to the caller if a new record is created.
         *        ETrue if a new row is created in the table; otherwise EFalse.
@@ -86,9 +102,9 @@
         *        into consideration when generating the unique row id
         * @return The unique id of the row added.
         */
-        TUint32 AddItemL(const TDesC& aName, const TDesC& aArtistName, const TDesC& aArt, TInt aDriveId, TBool& aNewRecord,
+        virtual TUint32 AddItemL(TMPXGeneralCategory aCategory, const CMPXMedia& aMedia, TInt aDriveId, TBool& aNewRecord,
             TBool aCaseSensitive = ETrue);
-
+        
         /**
         * Decrement the number of songs for the item. If the count gets to 0, remove
         * the item.
@@ -102,43 +118,52 @@
         *                  category was deleted
         * @param aItemExist Out parameter, ETrue if the category is not deleted after the delete,
         *        EFalse otherwise
-        * @param aArtist: The ID of the artist
         * @param aArt: The albumart uri
         */
-        void DecrementSongsForCategoryL(TUint32 aId, TInt aDriveId,
-            CMPXMessageArray* aItemChangedMessages, TBool& aItemExist, const TUint32 aArtist, const TDesC& aArt );
+        void DecrementSongsForAlbumL(TUint32 aId, TInt aDriveId,
+            CMPXMessageArray* aItemChangedMessages, TBool& aItemExist, const TDesC& aArt );
 
         /**
-    * Gets the details for all category items.
-    * @param aAttrs attributes to be returned
-    * @param aMediaArray returns the requested attributes for all items
-    */
+        * Gets the details for all category items.
+        * @param aAttrs attributes to be returned
+        * @param aMediaArray returns the requested attributes for all items
+        */
         void GetAllCategoryItemsL(const TArray<TMPXAttribute>& aAttrs,
             CMPXMediaArray& aMediaArray);
 
-    /**
-    * Update a category item.
-    * @param aId: The ID of the category to update
-    * @param aMedia: The media data
-    * @param aDriveId: The Drive Id the name (category) belongs
-    * @param aItemChangedMessages: if valid on return contains a updated message if the
-    *        category was updated
-    */
+        /**
+        * Update a category item.
+        * @param aId: The ID of the category to update
+        * @param aMedia: The media data
+        * @param aDriveId: The Drive Id the name (category) belongs
+        * @param aItemChangedMessages: if valid on return contains a updated message if the
+        *        category was updated
+        */
         void UpdateItemL(TUint32 aId, const CMPXMedia& aMedia, TInt aDriveId, CMPXMessageArray* aItemChangedMessages);
 
-    public:
+    public:        
         /**
-    * Get albums count for a specified artist
-    * @param aId: The ID of the artist
-    */
-        TInt GetAlbumsCountForArtistL(TUint32 aArtistId);
-
+        * Get songs count for a specified album and a specified artist
+        * @param aArtistId: The ID of the artist
+        * @param aAlbumId: The ID of the album
+        */
+        TInt GetSongsCountInAlbumMatchingArtistL(TUint32 aArtistId, TUint32 aAlbumId);
+       /**
+        * Check if the specified album ID is an unknown album.
+        * An “Unknown album” is one where the album name and album artist are unknown.
+        * @param aId: The ID of the album
+        * @return ETrue if it's an unknown album
+        */
+        TBool IsUnknownAlbumL(const TUint32 aId);
+        
         /**
-    * Get songs count for a specified album and a specified artist
-    * @param aArtistId: The ID of the artist
-    * @param aAlbumId: The ID of the album
-    */
-        TInt GetSongsCountInAlbumMatchingArtistL(TUint32 aArtistId, TUint32 aAlbumId);
+        * Generate Unique ID for Album
+        * @param aMedia media object
+        * @param aCaseSensitive indicates whether case sensitivity should be taken
+        *        into consideration when generating the unique row id
+        * @return the ID of album
+        */
+        TUint32 GenerateUniqueIdL(const CMPXMedia& aMedia);
 
     private:
         /**
@@ -159,16 +184,7 @@
         */
         void GenerateAlbumFieldsValuesL(const CMPXMedia& aMedia,
             CDesCArray& aFields, CDesCArray& aValues);
-
-
-        TBool IsUnknownArtistL(TUint32 aId);
-
-        /**
-        * Get the ArtistName of song which belongs to the specified Album.
-        * @param aId The ID of the album
-        * @returns alternative artistname retrieved in the specified Album.
-        */
-        HBufC* ArtistForAlbumL(const TUint32 aId);
+        
         /**
         * Get the Albumart of song which belongs to the specified Album.
         * @param aId The ID of the album
@@ -186,7 +202,31 @@
         */
         void ProcessAlbumRecordSetL(const TArray<TMPXAttribute>& aAttrs,
             RSqlStatement& aRecordset, CMPXMediaArray& aMediaArray);
+        
+        /**
+        * Retrieve AlbumArtist name from media object
+        * @param aMedia media object
+        * @param aName returned name
+        * @return ETrue if name is available
+        */   
+        TBool RetrieveAlbumArtistL(const CMPXMedia& aMedia, TPtrC& aName);
 
+        /**
+        * Retrieve Artist name from media object
+        * @param aMedia media object
+        * @param aName returned name
+        */   
+        void RetrieveArtist(const CMPXMedia& aMedia, TPtrC& aName);
+
+        /**
+        * Check if Art needs to be updated
+        * @param aDeletedSongArt deleted song's art
+        * @param aCurrentAlbumArt Album's current art
+        * @return ETrue if aDeletedSongArt is not non-embedded album art and 
+        *         aDeleteSongArt and aCurrentAlbumArt are the same and known
+        */   
+        TBool NeedToUpdateArt(const TDesC& aDeletedSongArt, const TDesC& aCurrentAlbumArt);
+        
     private:    // from MMPXTable
 
         /**
@@ -207,7 +247,7 @@
         * @param aCategory identifies the category
         */
         CMPXDbAlbum(CMPXDbManager& aDbManager, TMPXGeneralCategory aCategory, MMPXDbAlbumObserver& aObserver);
-
+        
         /**
         * Second phase constructor.
         */
@@ -221,16 +261,20 @@
         enum TAlbumColumns
             {
             EAlbumUniqueId = KMPXTableDefaultIndex,
-            EAlbumArtistName,
             EAlbumName,
             EAlbumSongCount,      
+            EAlbumArtist,
+            EAlbumArtistName,
             EAlbumArt,
             EAlbumFieldCount
             };
 
     private:    // Data
         MMPXDbAlbumObserver& iObserver;
+        RPointerArray<CMPXMedia> iUnknownArtists;
+        RPointerArray<CMPXMedia> iUnknownAlbums;
     };
+    
 #endif // MPXDBALBUM_H
 
 // End of File
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbartist.h	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbartist.h	Tue Sep 14 21:14:08 2010 +0300
@@ -24,11 +24,6 @@
 #include "mpxdbcategory.h"
 
 // CLASS DECLARATION
-class MMPXDbArtistObserver
-    {
-    public:
-		virtual TInt HandleGetAlbumsCountForArtistL(TUint32 aId) = 0;
-	};
 
 /**
 * Responsible for managing all music databases
@@ -47,7 +42,7 @@
         * @return New CMPXDbArtist instance.
         */
         static CMPXDbArtist* NewL(CMPXDbManager& aDbManager,
-            TMPXGeneralCategory aCategory, MMPXDbArtistObserver& aObserver);
+            TMPXGeneralCategory aCategory);
 
         /**
         * Two-phased constructor.
@@ -56,8 +51,8 @@
         * @return New CMPXDbArtist instance on the cleanup stack.
         */
         static CMPXDbArtist* NewLC(CMPXDbManager& aDbManager,
-            TMPXGeneralCategory aCategory, MMPXDbArtistObserver& aObserver);
-
+            TMPXGeneralCategory aCategory);
+        
         /**
         * Destructor
         */
@@ -65,17 +60,16 @@
 
     public:
         /**
-        * Add a category item. If the record already exists, its counter will
+        * Add a artist item. If the record already exists, its counter will
         * be incremented.
-        * @param aName: This is the name to be entered into the row
+        * @param aCategory category type
+        * @param aMedia: This is the media object
         * @param aDriveId: The Drive Id the name (category) belongs
         * @param aNewRecord: indicates to the caller if a new record is created.
         *        ETrue if a new row is created in the table; otherwise EFalse.
-        * @param aCaseSensitive indicates whether case sensitivity should be taken
-        *        into consideration when generating the unique row id
         * @return The unique id of the row added.
         */
-        TUint32 AddItemL(const TDesC& aName, const TDesC& aArt, TInt aDriveId, TBool& aNewRecord,
+        virtual TUint32 AddItemL(TMPXGeneralCategory aCategory, const CMPXMedia& aMedia, TInt aDriveId, TBool& aNewRecord,
             TBool aCaseSensitive = ETrue);
 
         /**
@@ -94,14 +88,54 @@
         * @param aItemChangedMessages: if valid on return contains a updated message if the
         *        category was updated
         */
-        void UpdateItemL(TUint32 aId, const CMPXMedia& aMedia, TInt aDriveId, CMPXMessageArray* aItemChangedMessages);
+        virtual void UpdateItemL(TUint32 aId, const CMPXMedia& aMedia, TInt aDriveId, CMPXMessageArray* aItemChangedMessages);
+        
+        /**
+        * Decrement the number of songs for the item. If the song and album count gets to 0, 
+        * remove the item.
+        * @param aId: The ID of the category to delete.
+        * @param aDriveId: The drive Id the name (category) belongs to. Songs on different
+        *                  drives may belong to the same album or artist; consequently, one
+        *                  row for each artist/album id and drive ID pair will exist in the
+        *                  lookup table with a count existing for each row that tracks the
+        *                  number number of songs on that drive with that album/artist.
+        * @param aItemChangedMessages if valid on return contains a deleted message if the
+        *                  category was deleted
+        * @param aItemExist Out parameter, ETrue if the category is not deleted after the delete,
+        *        EFalse otherwise
+        */
+#ifdef ABSTRACTAUDIOALBUM_INCLUDED
+        virtual void DecrementSongsForCategoryL(TUint32 aId, TInt aDriveId,
+            CMPXMessageArray* aItemChangedMessages, TBool& aItemExist, TBool aMtpInUse = EFalse); 
+#else
+        virtual void DecrementSongsForCategoryL(TUint32 aId, TInt aDriveId,
+            CMPXMessageArray* aItemChangedMessages, TBool& aItemExist);
+#endif //ABSTRACTAUDIOALBUM_INCLUDED            
 
-        /*
-        * Checks if the specified artist item is unknown
-        * @param aId identifies the artist item
-        * @return ETrue if it is unknown, EFalse otherwise
+        /**
+        * Add a AlbumArtist. If the record already exists, its counter will
+        * be incremented.
+        * @param aName: This is the name to be entered into the row
+        * @param aArt: Album art
+        * @param aDriveId: The Drive Id the name (category) belongs
+        * @return The unique id of the row added.
         */
-        TBool IsUnknownArtistL(TUint32 aId);
+        TUint32 AddAlbumArtistL(const TDesC& aName, const TDesC& aArt, TInt aDriveId);
+        
+        /**
+        * Decrement the number of albums for the item. If the song and album count gets to 0, 
+        * remove the item.
+        * @param aId: The ID of the category to delete.
+        * @param aDriveId: The drive Id the name (category) belongs to. Songs on different
+        *                  drives may belong to the same album or artist; consequently, one
+        *                  row for each artist/album id and drive ID pair will exist in the
+        *                  lookup table with a count existing for each row that tracks the
+        *                  number number of songs on that drive with that album/artist.
+        * @param aItemChangedMessages if valid on return contains a deleted message if the
+        *                  category was deleted
+        */
+        void DecrementAlbumsForArtistL(TUint32 aId, TInt aDriveId,
+            CMPXMessageArray* aItemChangedMessages);       
 
     private:
 
@@ -123,14 +157,16 @@
         */
         void GenerateArtistFieldsValuesL(const CMPXMedia& aMedia,
             CDesCArray& aFields, CDesCArray& aValues);
-
+       
         /**
-        * Gets the Album counts for a Artist item
+        * Gets the Songs count and Albums count for a Artist item
+        * @param aDrivceId The Drive Id the name (category) belongs
         * @param aId identifies the Artist item
-        * @return value of the Album counts
+        * @param aSongsCount songs count
+        * @param aAlbumsCount albums count
         */
-        TInt GetAlbumsCountL(TUint32 aId);
-
+        void GetSongsAndAlbumsCountL(TInt aDriveId, TUint32 aId, TInt& aSongsCount, TInt& aAlbumsCount);
+        
     private:    // from MMPXTable
 
         /**
@@ -150,7 +186,7 @@
         * @param aDbManager database manager to use for database interactions
         * @param aCategory identifies the category
         */
-        CMPXDbArtist(CMPXDbManager& aDbManager, TMPXGeneralCategory aCategory, MMPXDbArtistObserver& aObserver);
+        CMPXDbArtist(CMPXDbManager& aDbManager, TMPXGeneralCategory aCategory);
 
         /**
         * Second phase constructor.
@@ -167,13 +203,12 @@
             EArtistUniqueId = KMPXTableDefaultIndex,
             EArtistName,
             EArtistSongCount,
+            EArtistAlbumCount,
             EArtistArt,
             EArtistFieldCount
             };
-
-    private:    // Data
-        MMPXDbArtistObserver& iObserver;
     };
+    
 #endif // MPXDBARTIST_H
 
 // End of File
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbcategory.h	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbcategory.h	Tue Sep 14 21:14:08 2010 +0300
@@ -53,7 +53,8 @@
         /**
         * Add a category item. If the record already exists, its counter will
         * be incremented.
-        * @param aName: This is the name to be entered into the row
+        * @param aCategory category type
+        * @param aMedia: This is the media object to be entered into the row
         * @param aDriveId: The Drive Id the name (category) belongs
         * @param aNewRecord: indicates to the caller if a new record is created.
         *        ETrue if a new row is created in the table; otherwise EFalse.
@@ -61,14 +62,9 @@
         *        into consideration when generating the unique row id
         * @return The unique id of the row added.
         */
-#ifdef ABSTRACTAUDIOALBUM_INCLUDED
-        virtual TUint32 AddItemL(const TDesC& aName, TInt aDriveId, TBool& aNewRecord,
+        virtual TUint32 AddItemL(TMPXGeneralCategory aCategory, const CMPXMedia& aMedia, TInt aDriveId, TBool& aNewRecord,
             TBool aCaseSensitive = ETrue);
-#else 
-        TUint32 AddItemL(const TDesC& aName, TInt aDriveId, TBool& aNewRecord,
-            TBool aCaseSensitive = ETrue);
-#endif // ABSTRACTAUDIOALBUM_INCLUDED
-
+		
         /**
         * Get the name field for a given ID.
         * @param aId identifies the category item
@@ -90,7 +86,7 @@
         */
         void FindAllL(const CMPXMedia& aCriteria, const TArray<TMPXAttribute>& aAttrs,
             CMPXMediaArray& aMediaArray);
-
+        
         /**
         * Decrement the number of songs for the item. If the count gets to 0, remove
         * the item.
@@ -109,7 +105,7 @@
         virtual void DecrementSongsForCategoryL(TUint32 aId, TInt aDriveId,
             CMPXMessageArray* aItemChangedMessages, TBool& aItemExist, TBool aMtpInUse = EFalse);
 #else
-        void DecrementSongsForCategoryL(TUint32 aId, TInt aDriveId,
+        virtual void DecrementSongsForCategoryL(TUint32 aId, TInt aDriveId,
             CMPXMessageArray* aItemChangedMessages, TBool& aItemExist);
 #endif // ABSTRACTAUDIOALBUM_INCLUDED
         /**
@@ -183,8 +179,8 @@
         * @param aDriveId: The Drive Id the name (category) belongs
         * @param aItemChangedMessages: if valid on return contains a updated message if the
         * category was updated
-        */
-        void UpdateItemL(TUint32 aId, const CMPXMedia& aMedia, TInt aDriveId, CMPXMessageArray* aItemChangedMessages);
+        */       
+        virtual void UpdateItemL(TUint32 aId, const CMPXMedia& aMedia, TInt aDriveId, CMPXMessageArray* aItemChangedMessages);
 
     protected:
 
@@ -222,6 +218,15 @@
         void ProcessRecordsetL(const TArray<TMPXAttribute>& aAttrs,
             RSqlStatement& aRecordset, CMPXMediaArray& aMediaArray);
 
+    private:
+        /**
+        * Retrieve name from media object based on category
+        * @param aCategory the category to retrieve name
+        * @param aMedia media object
+        * @return name
+        */
+        TPtrC ItemNameL(TMPXGeneralCategory aCategory, const CMPXMedia& aMedia);
+        
     private:    // from MMPXTable
 
         /**
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbhandler.h	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbhandler.h	Tue Sep 14 21:14:08 2010 +0300
@@ -65,7 +65,6 @@
 class CMPXDbHandler :
     public CBase,
     public MMPXDbMusicObserver,
-    public MMPXDbArtistObserver,
     public MMPXDbAlbumObserver,
 	public MMPXDbPlaylistObserver
     {
@@ -1009,39 +1008,30 @@
 
     private:    // From MMPXDbMusicObserver
 
-#ifdef ABSTRACTAUDIOALBUM_INCLUDED
         /**
         * @see MMPXDbMusicObserver
         */
-        virtual TUint32 AddCategoryItemL(TMPXGeneralCategory aCategory,
-            const TDesC& aName,
-            TInt aDriveId,
-            CMPXMessageArray* aItemChangedMessages, TBool& aItemExist,
-            const TDesC& aUri,
-            const TDesC& aAlbumArtist=KNullDesC);
-#else
+#ifdef ABSTRACTAUDIOALBUM_INCLUDED
+       virtual TUint32 AddAbstractAlbumItemL(const TDesC& aName, 
+            TInt aDriveId, CMPXMessageArray* aItemChangedMessages, TBool& aItemExist,
+            const TDesC& aUri, const TDesC& aAlbumArtist=KNullDesC);
+#endif // ABSTRACTAUDIOALBUM_INCLUDED
+
+       virtual TUint32 AddCategoryItemL(TMPXGeneralCategory aCategory, const CMPXMedia& aMedia,       
+            TInt aDrive, CMPXMessageArray* aItemChangedMessages, TBool& aItemExist);
+       
+       virtual void UpdateCategoryItemL(TMPXGeneralCategory aCategory, TUint32 aCategoryId,
+            const CMPXMedia& aMedia, TInt aDrive, CMPXMessageArray* aItemChangedMessages);
+
+       virtual TUint32 GenerateUniqueIdForAlbumL(const CMPXMedia& aMedia);
+       
+       virtual TBool IsUnknownAlbumL(const TUint32 aId);
 
         /**
         * @see MMPXDbMusicObserver
         */
-        virtual TUint32 AddCategoryItemL(TMPXGeneralCategory aCategory,
-            const TDesC& aName, TInt aDriveId,
-            CMPXMessageArray* aItemChangedMessages, TBool& aItemExist);
-#endif // ABSTRACTAUDIOALBUM_INCLUDED
-
-       virtual TUint32 AddCategoryItemL(TMPXGeneralCategory aCategory, const TDesC& aName,
-           const TDesC& aArtistName, const TDesC& aArt,
-            TInt aDrive, CMPXMessageArray* aItemChangedMessages, TBool& aItemExist);
-
-       virtual void UpdateCategoryItemL(TMPXGeneralCategory aCategory, TUint32 aCategoryId,
-            const CMPXMedia& aMedia, TInt aDrive, CMPXMessageArray* aItemChangedMessages);
-
-        /**
-        * @see MMPXDbMusicObserver
-        */
-        virtual void DeleteSongForCategoryL(TMPXGeneralCategory aCategory,
-            TUint32 aCategoryId, TInt aDriveId, CMPXMessageArray* aItemChangedMessages,
-            TBool& aItemExist);
+        virtual void DeleteSongForCategoryL(TMPXGeneralCategory aCategory, TUint32 aCategoryId,
+            TInt aDrive, CMPXMessageArray* aItemChangedMessages, TBool& aItemExist, const TDesC& aArt = KNullDesC);
 
         /**
         * @see MMPXDbMusicObserver
@@ -1058,41 +1048,35 @@
         */
         virtual HBufC* HandleGetAlbumNameFromIdL(TUint32 aId);
 #endif // ABSTRACTAUDIOALBUM_INCLUDED
-    private:    // From MMPXDbArtistObserver
-    /**
-    * @see MMPXDbArtistObser
-    */
-        virtual TInt HandleGetAlbumsCountForArtistL(TUint32 aArtistId);
+        
+    private:    // From MMPXDbAlbumObserver   
+        /**
+        * Get the Albumart of song which belongs to the specified Album.     
+        * @param aId, The Album ID.
+        * @param aArt, the AlbumArt uri.
+	    * @returns alternative albumart retrieved in the specified Album.
+        */
+        virtual HBufC* HandleAlbumartForAlbumL(const TUint32 aAlbumId, TPtrC aArt);
+       
+        /**
+        * @see MMPXDbAlbumObserver
+        */
+        virtual void DeleteAlbumForArtistL(TUint32 aCategoryId,
+            TInt aDrive, CMPXMessageArray* aItemChangedMessages);
 
-    private:    // From MMPXDbAlbumObserver
-    /**
-    * @see MMPXDbAlbumObserver
-    */
-    virtual TBool HandleIsUnknownArtistL(TUint32 aArtistId);
-    /**
-    * Get the Artistname of song which belongs to the specified Album.     
-    * @param aId, The Album ID.
-	* @returns alternative artistname retrieved in the specified Album.
-    */
-    virtual HBufC* HandleArtistForAlbumL(const TUint32 aAlbumId);
-        
-    /**
-    * Get the Albumart of song which belongs to the specified Album.     
-    * @param aId, The Album ID.
-    * @param aArt, the AlbumArt uri.
-	* @returns alternative albumart retrieved in the specified Album.
-    */
-    virtual HBufC* HandleAlbumartForAlbumL(const TUint32 aAlbumId, TPtrC aArt);
+        /**
+        * @see MMPXDbAlbumObserver
+        */
+        virtual TUint32 AddAlbumArtistL(const TDesC& aName, const TDesC& aArt, TInt aDriveId);       
 
     private:	// From MMPXDbPlaylistObserver
-	/**
-	* @see MMPXDbPlaylistObserver
-	*/
+	    /**
+	    * @see MMPXDbPlaylistObserver
+	    */
 		virtual TInt HandlePlaylistDurationL(TUint32 aPlaylistId);
         virtual void HandlePlaylistInfoL(TUint32 aPlaylistId, TInt& aCount, TInt& aDuration);
 
     private:
-
         /**
         * C++ constructor.
         * @param file session
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbmusic.h	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbmusic.h	Tue Sep 14 21:14:08 2010 +0300
@@ -51,37 +51,33 @@
 #ifdef ABSTRACTAUDIOALBUM_INCLUDED
         /**
         * Called when a new category item has to be added to a category table.
-        * @param aCategory category type
-        * @param aName name string
+        * @param aName Abstract Album art name
         * @param aDrive drive to add the category to
         * @param aItemChangedMessages changed mesages array to be updated or NULL
         * @param aItemExist Out parameter, ETrue if the item already exist before the add,
         *        EFalse otherwise
+        * @param aUri Abstract Album art Uri
         * @param aAlbumArtist AlbumArtist string
-        * @param aGenre Genre string
         * @return the ID of the category item (new or existing)
         */
-        virtual TUint32 AddCategoryItemL(TMPXGeneralCategory aCategory, const TDesC& aName,
-            TInt aDrive, CMPXMessageArray* aItemChangedMessages, TBool& aItemExist, const TDesC& aAlbumArtist=KNullDesC,
-            const TDesC& aGenre=KNullDesC) = 0;
-#else
+        virtual TUint32 AddAbstractAlbumItemL(const TDesC& aName, 
+            TInt aDriveId, CMPXMessageArray* aItemChangedMessages, TBool& aItemExist,
+            const TDesC& aUri, const TDesC& aAlbumArtist=KNullDesC) = 0;
+#endif // ABSTRACTAUDIOALBUM_INCLUDED
+
         /**
         * Called when a new category item has to be added to a category table.
         * @param aCategory category type
-        * @param aName name string
+        * @param aMedia media object
         * @param aDrive drive to add the category to
         * @param aItemChangedMessages changed mesages array to be updated or NULL
         * @param aItemExist Out parameter, ETrue if the item already exist before the add,
         *        EFalse otherwise
         * @return the ID of the category item (new or existing)
         */
-        virtual TUint32 AddCategoryItemL(TMPXGeneralCategory aCategory, const TDesC& aName,
+        virtual TUint32 AddCategoryItemL(TMPXGeneralCategory aCategory, const CMPXMedia& aMedia,       
             TInt aDrive, CMPXMessageArray* aItemChangedMessages, TBool& aItemExist) = 0;
-#endif // ABSTRACTAUDIOALBUM_INCLUDED
-       // for Album and Artist table
-        virtual TUint32 AddCategoryItemL(TMPXGeneralCategory aCategory, const TDesC& aName,
-            const TDesC& aArtistName, const TDesC& aArt,
-            TInt aDrive, CMPXMessageArray* aItemChangedMessages, TBool& aItemExist) = 0;
+
         /**
         * Called when the ID of a category item changed for a Music record, for example when
         * the artist name changed for a song. The implementation is supposed to update the
@@ -92,9 +88,13 @@
         * @param aItemChangedMessages changed mesages array to be updated or NULL
         * @param aItemExist Out parameter, ETrue if the category is not deleted after the delete,
         *        EFalse otherwise
+        * @param aArt Art of the music record. 
+        *             Art needs to be given so that the cateogry can switch over to different art 
+        *             if necessary
+        * 
         */
         virtual void DeleteSongForCategoryL(TMPXGeneralCategory aCategory, TUint32 aCategoryId,
-            TInt aDrive, CMPXMessageArray* aItemChangedMessages, TBool& aItemExist) = 0;
+            TInt aDrive, CMPXMessageArray* aItemChangedMessages, TBool& aItemExist, const TDesC& aArt = KNullDesC) = 0;
 
         /**
         * Called when the play count attribute of a song is changed. Should add an item changed
@@ -121,6 +121,7 @@
          */
         virtual void UpdateCategoryItemL(TMPXGeneralCategory aCategory, TUint32 aCategoryId,
              const CMPXMedia& aMedia, TInt aDrive, CMPXMessageArray* aItemChangedMessages) = 0;
+
 #ifdef ABSTRACTAUDIOALBUM_INCLUDED
         /**
         * Get title from the Id
@@ -128,7 +129,23 @@
         * @return name matching the ID
         */
         virtual HBufC* HandleGetAlbumNameFromIdL( TUint32 aId ) = 0;
-#endif // ABSTRACTAUDIOALBUM_INCLUDED    
+#endif // ABSTRACTAUDIOALBUM_INCLUDED
+        
+        /**
+        * Generate Unique ID for Album
+        * @param aMedia media object
+        * @param aCaseSensitive indicates whether case sensitivity should be taken
+        *        into consideration when generating the unique row id
+        * @return the ID of album
+        */
+        virtual TUint32 GenerateUniqueIdForAlbumL(const CMPXMedia& aMedia) = 0;
+
+        /**
+        * Check if the specified album ID is Unknown album
+        * @param aId: The ID of the album
+        * @return ETrue if it's Unknown album
+        */
+        virtual TBool IsUnknownAlbumL(const TUint32 aId) = 0;
     };
 
 /**
@@ -149,7 +166,7 @@
         */
         static CMPXDbMusic* NewL(CMPXDbManager& aDbManager, CMPXResource& aResource,
             MMPXDbMusicObserver& aObserver);
-
+        
         /**
         * Two-phased constructor.
         * @param aDbManager database manager to use for database interactions
@@ -158,7 +175,7 @@
         */
         static CMPXDbMusic* NewLC(CMPXDbManager& aDbManager, CMPXResource& aResource,
             MMPXDbMusicObserver& aObserver);
-
+            
         /**
         * Destructor
         */
@@ -501,11 +518,13 @@
         * @param aAttrs the attributes to include for the artist(s) matching the
         *        selection criteria
         * @param aMediaArray returns the songs
-        */
+        * @param aSortByTrackOrder if TRUE sorts tracks according to their track numbers, 
+		*        if FALSE using track titles or filename
+        */       
         void FindSongsL(TUint32 aGeneralId, TUint32 aContainerId, TMPXGeneralType aType,
             const CMPXMedia& aCriteria, const TArray<TMPXAttribute>& aAttrs,
-            CMPXMediaArray& aMediaArray);
-
+            CMPXMediaArray& aMediaArray, TBool aSortByTrackOrder = EFalse);
+        
         /**
         * Returns the track count for a given drive
         * @param aDrive drive
@@ -523,12 +542,6 @@
         */
         void GetMusicUriArrayL(TInt aDrive, TInt aFromID, TInt aRecords,
                                CDesCArray& aUriArr, TInt& aLastID);
-
-        /**
-         * Get the ID of Artist which belongs to the specified Album
-         * @param aId, the ID of Album
-         */
-        TUint32 ArtistForAlbumL(const TUint32 aId);
             
         /**
         * Get the Albumart of song which belongs to the specified Album
@@ -672,13 +685,12 @@
         HBufC* ConstructUriL(RSqlStatement& aMusicTable);
 
         /**
-        * Checks if the specified category field (artist/album/genre/composer)
+        * Checks if the specified category field (artist/genre/composer/abstractalbum)
         * will change and notifies the observer if so.
         * @param aCategory identifies the category
         * @param aMedia contains the new record attributes
         * @param aAttribute corresponding attribute in the media parameter
-        * @param aColumnIndex column index in the recordset
-        * @param aMusicTable current record in the music table or NULL if this is an insert
+        * @param aOldId the current category item ID
         * @param aDriveId drive ID the update is for
         * @param aItemChangedMessages item changed messages to append to
         * @param aItemId returns the category item ID
@@ -689,6 +701,22 @@
             CMPXMessageArray* aItemChangedMessages, TUint32& aItemId, const TDesC& aArt = KNullDesC);
 
         /**
+        * Checks if album will change and notifies the observer if so.
+        * @param aMedia contains the new record attributes
+        * @param aAttribute corresponding attribute in the media parameter
+        * @param aOldId the current category item ID
+        * @param aDriveId drive ID the update is for
+        * @param aItemChangedMessages item changed messages to append to
+        * @param aItemId returns the album item ID
+		* @param aArt old art of the music record
+		* @param aCaseSensitive indicates whether case sensitivity should be taken
+        * @return ETrue if the field was modified
+        */
+        TBool UpdateCategoryFieldForAlbumL(const CMPXMedia& aMedia, 
+		    const TMPXAttribute& aAttribute, TUint32 aOldId, TInt aDriveId, 
+			CMPXMessageArray* aItemChangedMessages, TUint32& aItemId, const TDesC& aArt = KNullDesC);       
+        
+        /**
         * Checks if extra attributes are required. The "standard attribute set includes:
         * EMPXMediaGeneralId, EMPXMediaGeneralType, EMPXMediaGeneralCategory,
         * EMPXMediaGeneralTitle, EMPXMediaGeneralUri, and EMPXMediaGeneralFlags
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbpluginqueries.h	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/inc/mpxdbpluginqueries.h	Tue Sep 14 21:14:08 2010 +0300
@@ -209,11 +209,11 @@
 _LIT(KQueryMusicGetMusicUrisFrom, "SELECT UniqueId,Location FROM :dbname.Music WHERE Deleted=0 AND UniqueId > %u ORDER BY UniqueId ASC LIMIT %u");
 
 _LIT(KQueryMusicCount, "SELECT count(*) FROM :dbname.Music WHERE Deleted=0");
-_LIT(KQueryMusicAlbum, "SELECT DISTINCT Album FROM :dbname.Music WHERE Deleted=0 AND Artist=%u ORDER BY Album");
+_LIT(KQueryMusicAlbum, "SELECT DISTINCT Album FROM :dbname.Music WHERE Deleted=0 AND Artist=%u ORDER BY Album");  // deprecated, not maintained
 _LIT(KQueryMusicVolume, "SELECT VolumeId FROM :dbname.Music WHERE Deleted=0 AND UniqueId=%u");
 _LIT(KQueryMusicVolumeAll, "SELECT VolumeId FROM :dbname.Music WHERE UniqueId=%u");
 _LIT(KQueryMusicInfo, "SELECT * FROM :dbname.Music WHERE Deleted=0 AND UniqueId=%u");
-_LIT(KQueryOtherSongsInArtistAlbum, "SELECT count(*) FROM :dbname.Music WHERE Deleted=0 AND UniqueId<>%u AND Artist=%u AND Album=%u");
+_LIT(KQueryOtherSongsInArtistAlbum, "SELECT count(*) FROM :dbname.Music WHERE Deleted=0 AND UniqueId<>%u AND Artist=%u AND Album=%u");  // deprecated, not maintained
 
 _LIT(KQueryMusicDurationAll, "SELECT sum(Duration) FROM :dbname.Music WHERE Deleted=0");
 _LIT(KQueryMusicDurationArtist, "SELECT sum(Duration) FROM :dbname.Music WHERE Deleted=0 AND Artist=%u");
@@ -230,15 +230,15 @@
 _LIT(KQueryMusicGetDurationRecentlyAdded, "SELECT Duration FROM :dbname.Music WHERE Deleted=0 AND (julianday(TimeAdded) > julianday('now','-7 days'))");
 
 // Select songs information from music, playlistsongs and playlistsonginfo via playlistid order by playlistsongs's ordinal
-_LIT(KQueryMusicGetAllSongsbyPl,"select mu.UniqueId,mu.DbFlag,mu.VolumeId,mu.Title,mu.Artist,mu.Art,0,mu.Location,pl.UniqueId as PlUId, pl.ordinal from :dbname.music as mu,:pldbname.playlistsongs as pl where mu.Deleted=0 AND mu.uniqueid = pl.songid and pl.playlistid =%u ORDER BY 10");
+_LIT(KQueryMusicGetAllSongsbyPl,"select mu.UniqueId,mu.DbFlag,mu.VolumeId,mu.Title,mu.Artist,mu.Art,0,mu.Location,pl.UniqueId as PlUId, pl.ordinal from :dbname.music as mu,:pldbname.playlistsongs as pl where mu.Deleted=0 AND mu.uniqueid = pl.songid and pl.playlistid =%u ORDER BY 10");  // deprecated, not maintained
 #ifdef ABSTRACTAUDIOALBUM_INCLUDED
 _LIT(KQueryMusicGetAllSongsInfobyPl,"SELECT Music.*,Artist.Name,Album.Name,Genre.Name,Composer.Name,pl.UniqueId as PlUId,pl.ordinal FROM :dbname.Music,:dbname.Artist,:dbname.Album,:dbname.Genre,:dbname.Composer,:pldbname.playlistsongs as pl WHERE Music.Deleted=0 AND Music.Album=Album.UniqueId AND Music.Artist=Artist.UniqueId AND Music.Genre=Genre.UniqueId AND Music.Composer=Composer.UniqueId AND Music.UniqueId=pl .songid and pl .PlaylistId=%u ORDER BY 40");
 #else
 _LIT(KQueryMusicGetAllSongsInfobyPl,"SELECT Music.*,Artist.Name,Album.Name,Genre.Name,Composer.Name,pl.UniqueId as PlUId,pl.ordinal FROM :dbname.Music,:dbname.Artist,:dbname.Album,:dbname.Genre,:dbname.Composer,:pldbname.playlistsongs as pl WHERE Music.Deleted=0 AND Music.Album=Album.UniqueId AND Music.Artist=Artist.UniqueId AND Music.Genre=Genre.UniqueId AND Music.Composer=Composer.UniqueId AND Music.UniqueId=pl .songid and pl .PlaylistId=%u ORDER BY 37");
 #endif
-_LIT(KQuerySongsInArtistAlbum, "SELECT count(*) FROM :dbname.Music WHERE Deleted=0 AND Artist=%u AND Album=%u");
-_LIT(KQueryMusicGetArtistForAlbum, "SELECT Artist FROM :dbname.Music,:dbname.Artist WHERE Music.Deleted=0 AND Music.Artist=Artist.UniqueId AND Music.Album=%u");
+_LIT(KQuerySongsInArtistAlbum, "SELECT count(*) FROM :dbname.Music WHERE Deleted=0 AND Artist=%u AND Album=%u");  /// not maintaned and known to be broken due to "album artist (compilation support)"
 _LIT(KQueryMusicGetAlbumartForAlbum, "SELECT Art FROM :dbname.Music WHERE Music.Deleted=0 AND Music.Album=%u");
+
 // == Category table queries ==================================================
 //
 _LIT(KCategoryTablePlaceholder, "##table##");
@@ -279,9 +279,9 @@
 _LIT(KAuxiliaryDropTable,"DROP TABLE Auxiliary");
 _LIT(KAuxiliaryCheckTable, "SELECT Id,Version,TimeRefreshed,TimeSynced,Corrupt,SaveDeletedRecordCount FROM AUXILIARY");
 #ifdef ABSTRACTAUDIOALBUM_INCLUDED
-_LIT(KQueryAuxiliaryInsert, "INSERT INTO Auxiliary(Id,Version,Corrupt) VALUES(0,'6.7.0',%u)");
+_LIT(KQueryAuxiliaryInsert, "INSERT INTO Auxiliary(Id,Version,Corrupt) VALUES(0,'6.8.0',%u)");
 #else
-_LIT(KQueryAuxiliaryInsert, "INSERT INTO Auxiliary(Id,Version,Corrupt) VALUES(0,'6.7.1',%u)");
+_LIT(KQueryAuxiliaryInsert, "INSERT INTO Auxiliary(Id,Version,Corrupt) VALUES(0,'6.8.1',%u)");
 #endif // ABSTRACTAUDIOALBUM_INCLUDED
 _LIT(KQueryAuxiliarySetTime, "UPDATE :dbname.Auxiliary SET TimeRefreshed='%S', Corrupt=0");
 _LIT(KQueryAuxiliaryGetTime, "SELECT TimeRefreshed FROM :dbname.Auxiliary");
@@ -436,17 +436,17 @@
 //
 _LIT(KAlbumCreateTable,"CREATE TABLE Album("
     L"UniqueId INTEGER PRIMARY KEY,"
-    L"ArtistName TEXT COLLATE NOCASE,"
     L"Name TEXT COLLATE NOCASE,"
     L"SongCount INTEGER,"
-	L"Art TEXT)");
+    L"Artist INTEGER,"
+    L"ArtistName TEXT COLLATE NOCASE,"
+    L"Art TEXT)");
 
-_LIT(KAlbumCheckTable,"SELECT UniqueId,ArtistName,Name,SongCount,Art FROM Album");
+_LIT(KAlbumCheckTable,"SELECT UniqueId,Name,SongCount,Artist,ArtistName,Art FROM Album");
 
-_LIT(KQueryAlbumInsert, "INSERT INTO :dbname.Album(UniqueId,ArtistName,Name,SongCount,Art) VALUES(%u,'%S','%S',%u,'%S')");
+_LIT(KQueryAlbumInsert, "INSERT INTO :dbname.Album(UniqueId,Name,SongCount,Artist,ArtistName,Art) VALUES(%u,'%S',%u,%u,'%S','%S')");
 _LIT(KQueryAlbumUpdate, "UPDATE :dbname.Album SET %S WHERE UniqueId=%u");
 
-_LIT(KQueryAlbumItem, "SELECT Album.*,Artist.Name FROM :dbname.Album,:dbname.Artist WHERE Album.Artist=Artist.UniqueId AND UniqueId=%u");
 _LIT(KQueryAlbumAll, "SELECT Album.* FROM :dbname.Album ORDER BY ArtistName, Name");
 _LIT(KCriterionArtistName, "ArtistName='%S'");
 _LIT(KCriterionArt, "Art='%S'");
@@ -457,16 +457,22 @@
     L"UniqueId INTEGER PRIMARY KEY,"
     L"Name TEXT COLLATE NOCASE,"
     L"SongCount INTEGER,"
+    L"AlbumCount INTEGER,"
     L"Art TEXT)");
 
-_LIT(KArtistCheckTable,"SELECT UniqueId,Name,SongCount,Art FROM Artist");
+_LIT(KArtistCheckTable,"SELECT UniqueId,Name,SongCount,AlbumCount,Art FROM Artist");
 
-_LIT(KQueryArtistInsert, "INSERT INTO :dbname.Artist(UniqueId,Name,SongCount,Art) VALUES(%u,'%S',%u,'%S')");
+_LIT(KQueryArtistInsert, "INSERT INTO :dbname.Artist(UniqueId,Name,SongCount,AlbumCount,Art) VALUES(%u,'%S',%u,%u,'%S')");
 _LIT(KQueryArtistUpdate, "UPDATE :dbname.Artist SET %S WHERE UniqueId=%u");
 
-_LIT(KQueryArtistAll, "SELECT Artist.* FROM :dbname.Artist ORDER BY 2");
+_LIT(KQueryArtistAll, "SELECT Artist.* FROM :dbname.Artist WHERE SongCount > 0 ORDER BY 2");
 _LIT(KQueryArtistName, "SELECT Artist.Name FROM :dbname.Artist WHERE UniqueId=%u");
 
+_LIT(KQueryArtistIncrementAlbumCount, "UPDATE :dbname.Artist SET AlbumCount=AlbumCount+1 WHERE UniqueId=%u");
+_LIT(KQueryArtistDecrementAlbumCount, "UPDATE :dbname.Artist SET AlbumCount=AlbumCount-1 WHERE UniqueId=%u");
+_LIT(KQueryArtistGetSongCountAndAlbumCount, "SELECT SongCount,AlbumCount FROM :dbname.Artist WHERE UniqueId=%u");
+_LIT(KQueryArtistItems, "SELECT * FROM :dbname.Artist WHERE %S AND SongCount > 0 ORDER BY Name ASC");
+
 #ifdef ABSTRACTAUDIOALBUM_INCLUDED
 // == AbstractAlbum table queries ==========================================
 //
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbabstractalbum.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbabstractalbum.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -510,7 +510,7 @@
 void CMPXDbAbstractAlbum::GetAllItemsWithNoSongL(RArray<TUint32>& aItemsIds)
     {
     MPX_FUNC("CMPXDbAbstractAlbum::GetAllItemsWithNoSongL");
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAbstractAlbumsWithNoSong));
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAbstractAlbumsWithNoSong())); 
     CleanupClosePushL(recordset);
 
     TInt err(KErrNone);
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbalbum.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbalbum.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -37,6 +37,11 @@
 _LIT( KAbstractAlbumExt, ".alb" );
 #endif // ABSTRACTAUDIOALBUM_INCLUDED
 
+_LIT( KAlbumAlbumArtistSeperator, "\t1");
+_LIT( KAlbumArtistSeperator, "\t2");
+
+const TInt KUnknownAlbumsGranularity = 250;
+
 // ============================ MEMBER FUNCTIONS ==============================
 
 // ----------------------------------------------------------------------------
@@ -79,6 +84,9 @@
 CMPXDbAlbum::~CMPXDbAlbum()
     {
     MPX_FUNC("CMPXDbAlbum::~CMPXDbAlbum");
+    
+    iUnknownArtists.ResetAndDestroy();
+    iUnknownAlbums.ResetAndDestroy();
     }
 
 // ----------------------------------------------------------------------------
@@ -90,7 +98,9 @@
     TMPXGeneralCategory aCategory,
     MMPXDbAlbumObserver& aObserver) :
     CMPXDbCategory(aDbManager, aCategory),
-    iObserver(aObserver)
+    iObserver(aObserver),
+    iUnknownArtists(KUnknownAlbumsGranularity),
+    iUnknownAlbums(KUnknownAlbumsGranularity)
     {
     MPX_FUNC("CMPXDbAlbum::CMPXDbAlbum");
     }
@@ -111,79 +121,81 @@
 // ----------------------------------------------------------------------------
 //
 TUint32 CMPXDbAlbum::AddItemL(
-    const TDesC& aName,
-    const TDesC& aArtistName,
-    const TDesC& aArt,
+    TMPXGeneralCategory /*aCategory*/,        
+    const CMPXMedia& aMedia,
     TInt aDriveId,
     TBool& aNewRecord,
     TBool aCaseSensitive)
     {
     MPX_FUNC("CMPXDbAlbum::AddItemL");
 
+    TPtrC album(KNullDesC);
+    TPtrC albumArtist(KNullDesC);
+    TPtrC artist(KNullDesC);
+    TPtrC albumArt(KNullDesC);
+    
     // try to find the item first
-    TUint32 rowId(MPXDbCommonUtil::GenerateUniqueIdL(iDbManager.Fs(), iCategory,
-        aName, aCaseSensitive));
-    aNewRecord = !CategoryItemExistsL(aDriveId, rowId);
-
-    if (aNewRecord)
-        {
-        // insert new
-        HBufC* query = PreProcessStringLC(KQueryAlbumInsert);
-        HBufC* name = MPXDbCommonUtil::ProcessSingleQuotesLC(aName);
-        HBufC* artistname = MPXDbCommonUtil::ProcessSingleQuotesLC(aArtistName);
-		HBufC* art = MPXDbCommonUtil::ProcessSingleQuotesLC(aArt);
-
-        iDbManager.ExecuteQueryL(aDriveId, *query, rowId, artistname, name, 1, art); 
-
-		CleanupStack::PopAndDestroy(art);
-        CleanupStack::PopAndDestroy(artistname);
-        CleanupStack::PopAndDestroy(name);
-        CleanupStack::PopAndDestroy(query);
-        }
-    else
+    TUint32 rowId(GenerateUniqueIdL(aMedia));
+    
+    // retrieve the existing record
+    HBufC* query = PreProcessStringLC(KQueryCategoryItem);
+    RSqlStatement recordset(
+        iDbManager.ExecuteSelectQueryL(aDriveId, *query, rowId));
+    CleanupStack::PopAndDestroy(query);
+    CleanupClosePushL(recordset);
+    
+    TInt result = recordset.Next();   
+    if (result == KSqlAtEnd)
         {
-        // retrieve the existing record
-        HBufC* query = NULL;
-        query = PreProcessStringLC(KQueryCategoryItem);
-        RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(*query, rowId));
-        CleanupStack::PopAndDestroy(query);
-
-        CleanupClosePushL(recordset);
-
-        if (recordset.Next() != KSqlAtRow)
+        aNewRecord = result;
+        
+        // check Album attribute
+        if (aMedia.IsSupported(KMPXMediaMusicAlbum))     
             {
-            User::Leave(KErrNotFound);
-	    }
-
-        // Artist
-        TPtrC artistname(KNullDesC);
-        artistname.Set(MPXDbCommonUtil::GetColumnTextL(recordset, EAlbumArtistName));
-
-
-        // the current one is Unknown and the new one is Not Unknown.
-         if ( artistname == KNullDesC  && aArtistName!= KNullDesC )
+            album.Set(aMedia.ValueText(KMPXMediaMusicAlbum).Left(KMCMaxTextLen));
+            }
+        
+        // check AlbumArt attirbute
+        if (aMedia.IsSupported(KMPXMediaMusicAlbumArtFileName))
             {
-            HBufC* artistnameReplaceSingleQuote = 
-                            MPXDbCommonUtil::ProcessSingleQuotesLC( aArtistName );
-            TPtrC criteria(KCriterionArtistName);
-            HBufC* setStr = HBufC::NewLC(criteria.Length() + artistnameReplaceSingleQuote->Length()); 
-            setStr->Des().Format( KCriterionArtistName, artistnameReplaceSingleQuote );
-           
-            iDbManager.ExecuteQueryL(aDriveId, KQueryAlbumUpdate, setStr, rowId);
-            CleanupStack::PopAndDestroy(setStr);
-            CleanupStack::PopAndDestroy(artistnameReplaceSingleQuote);
-
+            albumArt.Set(aMedia.ValueText(KMPXMediaMusicAlbumArtFileName).Left(KMCMaxTextLen));
             }
 
-        // Album Art
+        // insert new
+        HBufC* name = MPXDbCommonUtil::ProcessSingleQuotesLC(album);
+        TUint32 artistId(0);
+        HBufC* artistName = NULL;        
+        if (RetrieveAlbumArtistL(aMedia, albumArtist))
+            {
+            artistId = iObserver.AddAlbumArtistL(albumArtist, albumArt, aDriveId);
+            artistName = MPXDbCommonUtil::ProcessSingleQuotesLC(albumArtist);
+            }
+        else
+            {
+            RetrieveArtist(aMedia, artist);
+            artistId = iObserver.AddAlbumArtistL(artist, albumArt, aDriveId);
+            artistName = MPXDbCommonUtil::ProcessSingleQuotesLC(artist);
+            }
+        
+        HBufC* art = MPXDbCommonUtil::ProcessSingleQuotesLC(albumArt);
+                
+        iDbManager.ExecuteQueryL(aDriveId, KQueryAlbumInsert, rowId, name, 1, artistId, artistName,art); 
+
+        CleanupStack::PopAndDestroy(art);
+        CleanupStack::PopAndDestroy(artistName);
+        CleanupStack::PopAndDestroy(name);
+        }
+    else if (result == KSqlAtRow)
+        {       
+        // retrieve Art from Album table
         TPtrC art(KNullDesC);
         art.Set(MPXDbCommonUtil::GetColumnTextL(recordset, EAlbumArt));
 
         // the current one is Unknown and the new one is Not Unknown
-        if ( art == KNullDesC && aArt != KNullDesC )
+        if ( art == KNullDesC && albumArt != KNullDesC )
             {
             HBufC* artReplaceSingleQuote = 
-                            MPXDbCommonUtil::ProcessSingleQuotesLC( aArt );
+                MPXDbCommonUtil::ProcessSingleQuotesLC( albumArt );
 
             TPtrC criteria(KCriterionArt);
             HBufC* setStr = HBufC::NewLC(criteria.Length() + artReplaceSingleQuote->Length()); 
@@ -194,35 +206,57 @@
             CleanupStack::PopAndDestroy(artReplaceSingleQuote);
             }
 
-        CleanupStack::PopAndDestroy(&recordset);
-
         // increment the number of songs for the category
         query = PreProcessStringLC(KQueryCategoryIncrementSongCount);
         iDbManager.ExecuteQueryL(aDriveId, *query, rowId);
         CleanupStack::PopAndDestroy(query);
+        } // existing record
+    else
+        {
+        MPX_DEBUG2("SQL error %d", result);
+        User::Leave(result);
         }
 
+    CleanupStack::PopAndDestroy(&recordset);
+    
     return rowId;
     }
 
 // ----------------------------------------------------------------------------
-// CMPXDbAlbum::DecrementSongsForCategoryL
+// CMPXDbAlbum::DecrementSongsForAlbumL
 // ----------------------------------------------------------------------------
 //
-void CMPXDbAlbum::DecrementSongsForCategoryL(
+void CMPXDbAlbum::DecrementSongsForAlbumL(
     const TUint32 aId,
     TInt aDriveId,
     CMPXMessageArray* aItemChangedMessages,
     TBool& aItemExist,
-    const TUint32 aArtist,
-    const TDesC& aArt)
+    const TDesC& aArt)       
     {
-    MPX_FUNC("CMPXDbAlbum::DecrementSongsForCategoryL");
+    MPX_FUNC("CMPXDbAlbum::DecrementSongsForAlbumL");
+
+    // retrieve the existing record
+    HBufC* query = PreProcessStringLC(KQueryCategoryItem);
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(*query, aId));
+    CleanupStack::PopAndDestroy(query);
+
+    CleanupClosePushL(recordset);
+
+    if (recordset.Next() != KSqlAtRow)
+        {
+        User::Leave(KErrNotFound);
+        }
 
     // if just one song uses this category. Use <= just in case
-    if (GetSongsCountL(aDriveId, aId) <= 1)
+    if (recordset.ColumnInt64(EAlbumSongCount) <= 1)
         {
         aItemExist = EFalse;
+
+        // Decrement albums count on artist       
+        TUint32 albumArtistId = recordset.ColumnInt64(EAlbumArtist);
+        iObserver.DeleteAlbumForArtistL(albumArtistId, aDriveId, aItemChangedMessages);
+        CleanupStack::PopAndDestroy(&recordset);
+                
         // delete the category
         DeleteCategoryL(aId, aDriveId);
 
@@ -237,63 +271,10 @@
         {
         aItemExist = ETrue;
 
-        // retrieve the existing record
-        HBufC* query = PreProcessStringLC(KQueryCategoryItem);
-        RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(*query, aId));
-        CleanupStack::PopAndDestroy(query);
-
-        CleanupClosePushL(recordset);
-
-        if (recordset.Next() != KSqlAtRow)
-            {
-            User::Leave(KErrNotFound);
-        }
-
         TBool itemModified = EFalse;
-        TPtrC artistname(MPXDbCommonUtil::GetColumnTextL(recordset, EAlbumArtistName));
-        TUint32 artistId = MPXDbCommonUtil::GenerateUniqueIdL(iDbManager.Fs(), EMPXArtist,
-	            artistname, ETrue);
-
-        // the current artist is equal to deleted song's artist
-        if ( artistId == aArtist )
-            {
-            HBufC* newArtistname = ArtistForAlbumL(aId);
-            
-            CleanupStack::PushL(newArtistname);
-            if (newArtistname && newArtistname->CompareF(artistname)!=0)
-                { 
-                HBufC* artistnameReplaceSingleQuote = MPXDbCommonUtil::ProcessSingleQuotesLC( *newArtistname );
-                TPtrC criteria(KCriterionArtistName);
-                HBufC* setStr = HBufC::NewLC(criteria.Length() + artistnameReplaceSingleQuote->Length()); 
-                setStr->Des().Format( KCriterionArtistName, artistnameReplaceSingleQuote );                    	
-
-                iDbManager.ExecuteQueryL(aDriveId, KQueryAlbumUpdate, setStr, aId);
-                CleanupStack::PopAndDestroy(setStr);
-                CleanupStack::PopAndDestroy(artistnameReplaceSingleQuote);
-                itemModified = ETrue;
-                }
-            CleanupStack::PopAndDestroy(newArtistname);             
-            }         
-        
-#ifdef ABSTRACTAUDIOALBUM_INCLUDED      
-    TBool nonEmbeddedArt = EFalse;
-    if (aArt.Length()>0)
-        {
-        TParsePtrC parse(aArt);
-        TPtrC ext(parse.Ext());
-        //set flag to false, so .alb will not overwrite art field in album, artist table 
-        // when song with embedded art
-        if (ext.CompareF(KAbstractAlbumExt)== 0) 
-            {     
-            nonEmbeddedArt = ETrue;        
-            }
-        }
-  if (!nonEmbeddedArt)       
-       {
-#endif // ABSTRACTAUDIOALBUM_INCLUDED
-       TPtrC art(MPXDbCommonUtil::GetColumnTextL(recordset, EAlbumArt));
-        // the current art is equal to deleted song's art      
-        if(aArt.Length()>0 && art.Length()>0 && aArt.CompareF(art) ==0 )
+        		
+        TPtrC art(MPXDbCommonUtil::GetColumnTextL(recordset, EAlbumArt));        
+        if (NeedToUpdateArt(aArt, art))
             {
             MPX_DEBUG2("AlbumArt of the Song to be deleted is [%S]", &aArt);
             
@@ -304,7 +285,7 @@
             //update Album table only if alternative albumart found
             if (newArt)
                 {
-                MPX_DEBUG1("CMPXDbAlbum::DecrementSongsForCategoryL, get newArt");
+                MPX_DEBUG1("CMPXDbAlbum::DecrementSongsForAlbumL, get newArt");
                 HBufC* artReplaceSingleQuote = MPXDbCommonUtil::ProcessSingleQuotesLC( *newArt );
                 TPtrC criteria(KCriterionArt);   
                 HBufC* setStr = HBufC::NewLC(criteria.Length() + artReplaceSingleQuote->Length()); 
@@ -315,17 +296,15 @@
                 CleanupStack::PopAndDestroy(artReplaceSingleQuote);
                 itemModified = ETrue;                     
                 }
-           CleanupStack::PopAndDestroy(newArt);             
-           }
-#ifdef ABSTRACTAUDIOALBUM_INCLUDED            
-         }
-#endif // ABSTRACTAUDIOALBUM_INCLUDED
+            CleanupStack::PopAndDestroy(newArt);             
+            }
+
         if (aItemChangedMessages && itemModified)
-           {
-           // add the item changed message
-           MPXDbCommonUtil::AddItemAlbumChangedMessageL(*aItemChangedMessages, aId, EMPXItemModified,
-                      EMPXAlbum, KDBPluginUid, ETrue, 0 );
-           }
+            {
+            // add the item changed message
+            MPXDbCommonUtil::AddItemAlbumChangedMessageL(*aItemChangedMessages, aId, EMPXItemModified,
+                EMPXAlbum, KDBPluginUid, ETrue, 0 );
+            }
         CleanupStack::PopAndDestroy(&recordset);
         
         // decrement the number of songs for the category
@@ -345,12 +324,16 @@
     {
     MPX_FUNC("CMPXDbAlbum::GetAllCategoryItemsL");
 
-    HBufC* query = PreProcessStringLC(KQueryAlbumAll);
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(*query));
-    CleanupStack::PopAndDestroy(query);
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAlbumAll()));
 
     CleanupClosePushL(recordset);
-    ProcessAlbumRecordSetL(aAttrs, recordset, aMediaArray);
+    TRAPD(err, ProcessAlbumRecordSetL(aAttrs, recordset, aMediaArray));
+    if (err != KErrNone)
+        {
+        iUnknownArtists.ResetAndDestroy();
+        iUnknownAlbums.ResetAndDestroy();
+        User::LeaveIfError(err);
+        }
     CleanupStack::PopAndDestroy(&recordset);
     }
 
@@ -391,39 +374,6 @@
 	}
 
 // ----------------------------------------------------------------------------
-// CMPXDbAlbum::GetAlbumsCountForArtistL
-// ----------------------------------------------------------------------------
-//
-TInt CMPXDbAlbum::GetAlbumsCountForArtistL(TUint32 aArtistId)
-	{
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryCategorySubcategoryItems, aArtistId));
-
-    TInt prevId(0);
-    TInt count(0);
-	TInt err(KErrNone);
-
-    while ((err = recordset.Next()) == KSqlAtRow)
-		{
-		TUint32 rowId(recordset.ColumnInt64(EAlbumUniqueId));
-        if (prevId == rowId)
-            {
-            continue;
-            }
-
-		count++;
-		prevId = rowId;
-		}
-
-    if (err != KSqlAtEnd)
-        {
-        User::Leave(err);
-        }
-
-	return count;
-
-	}
-
-// ----------------------------------------------------------------------------
 // CMPXDbAlbum::GetSongsCountInAlbumMatchingArtistL
 // ----------------------------------------------------------------------------
 //
@@ -485,14 +435,7 @@
 				{
 				MPX_DEBUG1("	EMPXMediaMusicArtist");
 
-				TPtrC artistName(KNullDesC);
-
-				// if album is unknown, ignore arist name
-				if (MPXDbCommonUtil::GetColumnTextL(aRecord, EAlbumName) != KNullDesC)
-					{
-					artistName.Set(MPXDbCommonUtil::GetColumnTextL(aRecord, EAlbumArtistName));
-					}
-
+				TPtrC artistName(MPXDbCommonUtil::GetColumnTextL(aRecord, EAlbumArtistName));
 				aMedia.SetTextValueL(KMPXMediaMusicArtist, artistName);
 				MPX_DEBUG2("	Artist[%S]", &artistName);
 				}
@@ -518,14 +461,7 @@
 				{
 				MPX_DEBUG1("	EMPXMediaMusicAlbumArtFileName");
 
-				TPtrC art(KNullDesC);
-
-				// if album is unknown, ignore album art name
-				if (MPXDbCommonUtil::GetColumnTextL(aRecord, EAlbumName) != KNullDesC)
-					{
-					art.Set(MPXDbCommonUtil::GetColumnTextL(aRecord, EAlbumArt));
-					}
-
+				TPtrC art(MPXDbCommonUtil::GetColumnTextL(aRecord, EAlbumArt));
 				aMedia.SetTextValueL(KMPXMediaMusicAlbumArtFileName, art);
 				MPX_DEBUG2("	Art[%S]", &art);
 				}
@@ -546,34 +482,10 @@
 		{
 		const TDesC& albumArtFilename = aMedia.ValueText(KMPXMediaMusicAlbumArtFileName).Left(KMCMaxTextLen);
 		MPXDbCommonUtil::AppendValueL(aFields, aValues, KMCMusicArt, albumArtFilename);
-		}
-
-	if (aMedia.IsSupported(KMPXMediaMusicArtist))
-	    {
-	    const TDesC& artistName = aMedia.ValueText(KMPXMediaMusicArtist).Left(KMCMaxTextLen);
-	    MPXDbCommonUtil::AppendValueL(aFields, aValues, KMCAlbumArtistName, artistName);
-	    }
+		}	
 	}
 
 // ----------------------------------------------------------------------------
-// CMPXDbAlbum::IsUnknownArtistL
-// ----------------------------------------------------------------------------
-//
-TBool CMPXDbAlbum::IsUnknownArtistL(TUint32 aId)
-	{
-	return iObserver.HandleIsUnknownArtistL(aId);
-	}
-
-// ----------------------------------------------------------------------------
-// CMPXDbAlbum::ArtistForAlbumL
-// ----------------------------------------------------------------------------
-//
-HBufC* CMPXDbAlbum::ArtistForAlbumL(const TUint32 aId)
-    {
-    return iObserver.HandleArtistForAlbumL(aId);
-    }
-
-// ----------------------------------------------------------------------------
 // CMPXDbAlbum::AlbumartForAlbumL
 // ----------------------------------------------------------------------------
 //
@@ -583,49 +495,29 @@
     }
 
 // ----------------------------------------------------------------------------
-// CMPXDbAlbum::CreateTableL
-// ----------------------------------------------------------------------------
-//
-void CMPXDbAlbum::CreateTableL(
-    RSqlDatabase& aDatabase,
-    TBool /* aCorruptTable */)
-    {
-    MPX_FUNC("CMPXDbCategory::CreateTableL");
-
-    // create the table
-    HBufC* query = PreProcessStringLC(KAlbumCreateTable);
-    User::LeaveIfError(aDatabase.Exec(*query));
-    CleanupStack::PopAndDestroy(query);
-
-    // do not create an index on the Name field
-    // as it only slows down the insert/update queries overall
-    }
-
-// ----------------------------------------------------------------------------
-// CMPXDbAlbum::CheckTableL
-// ----------------------------------------------------------------------------
-//
-TBool CMPXDbAlbum::CheckTableL(
-    RSqlDatabase& aDatabase)
-    {
-    MPX_FUNC("CMPXDbCategory::CheckTableL");
-
-    HBufC* query = PreProcessStringLC(KAlbumCheckTable);
-    TBool check(DoCheckTable(aDatabase, *query));
-    CleanupStack::PopAndDestroy(query);
-
-    return check;
-    }
-
-// ----------------------------------------------------------------------------
 // CMPXDbAlbum::ProcessAlbumRecordSetL
-// Unknown album is stored in the database as NULL (name field). 
-// The first available unknown album is saved for later and will be appended to the array 
-// as the last item and rest available unknown album will be ignored. 
+// Unknown album or Unknown artist are stored in the database as NULL (Name field and ArtistName field). 
+// The available unknown album is saved for later and will be appended to the array 
+// as the last item among items which have the same artist.
+// The available unknown artists are saved for later and will be appended to the array
+// as the last items after all known artists are appended.
+// The unknown album and unknown artist is saved for later and will be appended to the array
+// as the last item.
 //
 // NOTE: putting unknown album to the end of the array only takes place when title
 //       field is requested. normal sorting algorithm occurs if title isn't
 //       requested.
+//
+// Example:
+//     Album X of artist A
+//     Album Y of artist A
+//     Unknown album of artist A
+//     Album X of artist B
+//     Album Z of artist B
+//     Unknown album of artist B
+//     Album X of unknown artist
+//     Album Y of unknown artist
+//     Unknown album of unknown artist
 // ----------------------------------------------------------------------------
 //
 void CMPXDbAlbum::ProcessAlbumRecordSetL(
@@ -634,12 +526,27 @@
     CMPXMediaArray& aMediaArray)
     {
     // populate the array
-    TBool unknownRecord(EFalse);
-    TBool firstUnknownRecord(EFalse);
+    TBool firstRecord(ETrue);
+    CMPXMedia* unknownAlbumUnknownArtistMedia(NULL);
     CMPXMedia* unknownMedia(NULL);
-    TInt prevId(0);
+    TUint32 prevId(0);
+    TUint32 artistId(0);
+    TUint32 prevArtistId(0);
+    TInt count(0);
     TInt err(KErrNone);
-
+       
+    // Reset array for unknown artists
+    if (iUnknownArtists.Count() > 0)
+        {
+        iUnknownArtists.ResetAndDestroy();
+        }
+    
+    // Reset array for unknown albums
+    if (iUnknownAlbums.Count() > 0)
+        {
+        iUnknownAlbums.ResetAndDestroy();
+        }
+        
     TInt pPath(0);
     if (aMediaArray.Count())
         {
@@ -650,6 +557,7 @@
             MPX_ASSERT(pPath);
             }
         }
+    
     RArray<TMPXItemId> ids;
     CleanupClosePushL(ids);
 
@@ -666,36 +574,58 @@
         CleanupStack::PushL(media);
 
         UpdateMediaL(aRecordset, aAttrs, *media);
+    
+        artistId = aRecordset.ColumnInt64(EAlbumArtist);
 
-        if (MPXDbCommonUtil::GetColumnTextL(aRecordset, EAlbumName).Length() == 0)
+        // Append Known artist and Unknown albums
+        count = iUnknownAlbums.Count();
+        if (prevArtistId != artistId && count > 0)
             {
-            if (!unknownMedia)
+            unknownMedia = NULL;
+                
+            for (TInt i = 0; i < count; i++)
                 {
-                unknownMedia = media;
-                firstUnknownRecord = ETrue;
+                unknownMedia = iUnknownAlbums[i];
+                if (unknownMedia->IsSupported(KMPXMediaGeneralId) && pPath)
+                    {
+                    ids.Append(unknownMedia->ValueTObjectL<TMPXItemId>(KMPXMediaGeneralId));
+                    }
+                aMediaArray.AppendL(*unknownMedia);                 
                 }
-            unknownRecord = ETrue;
+                
+            iUnknownAlbums.ResetAndDestroy();
             }
         
-        if (!unknownRecord)
+        // for Unknown artist and Unknown album
+        if (firstRecord && (MPXDbCommonUtil::GetColumnTextL(aRecordset, EAlbumName).Length() == 0) &&
+            (MPXDbCommonUtil::GetColumnTextL(aRecordset, EAlbumArtistName).Length() == 0))
+            {
+            unknownAlbumUnknownArtistMedia = media;
+            }
+        // for Unknown artists and Known albums
+        else if (MPXDbCommonUtil::GetColumnTextL(aRecordset, EAlbumArtistName).Length() == 0)
+            {
+            iUnknownArtists.Append(media);
+            CleanupStack::Pop(media);
+            }
+        // for Known artist and Unknown album
+        else if (MPXDbCommonUtil::GetColumnTextL(aRecordset, EAlbumName).Length() == 0)
+            {
+            iUnknownAlbums.Append(media);
+            CleanupStack::Pop(media);
+            prevArtistId = artistId;
+            }
+        else
             {
             if (media->IsSupported(KMPXMediaGeneralId) && pPath)
                 {
                 ids.AppendL(media->ValueTObjectL<TMPXItemId>(KMPXMediaGeneralId));
                 }
             aMediaArray.AppendL(*media);
+            CleanupStack::PopAndDestroy(media);       
             }
         
-        if (!firstUnknownRecord)
-            {
-            CleanupStack::PopAndDestroy(media);
-            }
-        else
-            {
-            firstUnknownRecord = EFalse;
-            }
-        
-        unknownRecord = EFalse;
+        firstRecord = EFalse;               
         } // end while
 
     if (err != KSqlAtEnd)
@@ -703,16 +633,55 @@
         User::LeaveIfError(err);
         }
 
-    if (unknownMedia)
+    // Append Known artist and Unknown albums
+    count = iUnknownAlbums.Count();
+    if ( count > 0)
         {
-        if (unknownMedia->IsSupported(KMPXMediaGeneralId) && pPath)
+        unknownMedia = NULL;
+        
+        for (TInt i = 0; i < count; i++)
             {
-            ids.AppendL(unknownMedia->ValueTObjectL<TMPXItemId>(KMPXMediaGeneralId));
+            unknownMedia = iUnknownAlbums[i];
+            if (unknownMedia->IsSupported(KMPXMediaGeneralId) && pPath)
+                {
+                ids.Append(unknownMedia->ValueTObjectL<TMPXItemId>(KMPXMediaGeneralId));
+                }
+            aMediaArray.AppendL(*unknownMedia);                 
             }
-        aMediaArray.AppendL(*unknownMedia);
-        CleanupStack::PopAndDestroy(unknownMedia);
+        
+        iUnknownAlbums.ResetAndDestroy();
         }
 
+    // Append Unknown artists to MediaArray
+    count = iUnknownArtists.Count();
+    if ( count > 0)
+        {
+        CMPXMedia* unknownMedia = NULL;
+        
+        for (TInt i = 0; i < count; i++)
+            {
+            unknownMedia = iUnknownArtists[i];
+            if (unknownMedia->IsSupported(KMPXMediaGeneralId) && pPath)
+                {
+                ids.Append(unknownMedia->ValueTObjectL<TMPXItemId>(KMPXMediaGeneralId));
+                }
+            aMediaArray.AppendL(*unknownMedia);                 
+            }
+        
+        iUnknownArtists.ResetAndDestroy();
+        }
+    
+    // the last item in the list
+    if (unknownAlbumUnknownArtistMedia)
+        {
+        if (unknownAlbumUnknownArtistMedia->IsSupported(KMPXMediaGeneralId) && pPath)
+            {
+            ids.AppendL(unknownAlbumUnknownArtistMedia->ValueTObjectL<TMPXItemId>(KMPXMediaGeneralId));
+            }
+        aMediaArray.AppendL(*unknownAlbumUnknownArtistMedia);
+        CleanupStack::PopAndDestroy(unknownAlbumUnknownArtistMedia);
+        }
+    
     // Append ids to the returned path
     if (pPath)
         {
@@ -721,4 +690,194 @@
     CleanupStack::PopAndDestroy(&ids);
     }
 
+// ----------------------------------------------------------------------------
+// CMPXDbAlbum::GenerateUniqueIdL
+// ----------------------------------------------------------------------------
+//
+TUint32 CMPXDbAlbum::GenerateUniqueIdL(const CMPXMedia& aMedia)
+    {
+    TPtrC album(KNullDesC);
+    TPtrC albumArtist(KNullDesC);
+    TPtrC artist(KNullDesC);
+    
+    // check Album attirbute
+    if (aMedia.IsSupported(KMPXMediaMusicAlbum))     
+        {
+        album.Set(aMedia.ValueText(KMPXMediaMusicAlbum).Left(KMCMaxTextLen));
+        }
+    
+    HBufC* buf(NULL);    
+    if (RetrieveAlbumArtistL(aMedia, albumArtist))
+        {
+        buf = HBufC::NewLC(album.Length() + albumArtist.Length() + KAlbumAlbumArtistSeperator().Length());
+    
+        buf->Des().Append(album);
+        buf->Des().Append(KAlbumAlbumArtistSeperator);
+        buf->Des().Append(albumArtist);
+        }
+    else
+        {
+        RetrieveArtist(aMedia, artist);
+        
+        buf = HBufC::NewLC(album.Length() + artist.Length() + KAlbumArtistSeperator().Length());
+        
+        buf->Des().Append(album);
+        buf->Des().Append(KAlbumArtistSeperator);
+        buf->Des().Append(artist);
+        }
+    
+    // try to find the item first
+    TUint32 id(MPXDbCommonUtil::GenerateUniqueIdL(iDbManager.Fs(), EMPXAlbum,
+        *buf, ETrue));
+    CleanupStack::PopAndDestroy(buf);
+    
+    return id;
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbAlbum::IsUnknownAlbumL
+// ----------------------------------------------------------------------------
+//
+TBool CMPXDbAlbum::IsUnknownAlbumL(const TUint32 aId)
+    {
+    HBufC* query = PreProcessStringLC(KQueryCategoryItem);
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(*query, aId));
+    CleanupStack::PopAndDestroy(query);
+    CleanupClosePushL(recordset);
+
+    if (recordset.Next() != KSqlAtRow)
+        {
+        User::Leave(KErrNotFound);
+        }
+    
+    TPtrC album(MPXDbCommonUtil::GetColumnTextL(recordset, EAlbumName)); 
+    TPtrC artistName(MPXDbCommonUtil::GetColumnTextL(recordset, EAlbumArtistName)); 
+
+    TBool ret = EFalse;
+    if (album.Length() == 0 || artistName.Length() == 0)
+        {
+        ret = ETrue;   
+        }
+    else
+        {
+        ret = EFalse;
+        }
+    
+    CleanupStack::PopAndDestroy(&recordset);
+    
+    return ret;
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbAlbum::RetrieveAlbumArtistL
+// ----------------------------------------------------------------------------
+//
+TBool CMPXDbAlbum::RetrieveAlbumArtistL(const CMPXMedia& aMedia, TPtrC& aName)
+    {
+    // check AlbumArtist attribute
+    if (aMedia.IsSupported(KMPXMediaMusicAlbumArtist))
+        {
+        aName.Set(aMedia.ValueText(KMPXMediaMusicAlbumArtist).Left(KMCMaxTextLen));
+        }
+    else
+        {
+        aName.Set(KNullDesC);
+        }
+    
+    if (aName.Length() > 0 )
+        {
+        return ETrue;
+        }
+    else
+        {
+        return EFalse;
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbAlbum::RetrieveArtist
+// ----------------------------------------------------------------------------
+//
+void CMPXDbAlbum::RetrieveArtist(const CMPXMedia& aMedia, TPtrC& aName)
+    {
+    // check Artist attribute
+    if (aMedia.IsSupported(KMPXMediaMusicArtist))
+        {
+        aName.Set(aMedia.ValueText(KMPXMediaMusicArtist).Left(KMCMaxTextLen));
+        }
+    else
+        {
+        aName.Set(KNullDesC);            
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbAlbum::NeedToUpdateArt
+// ----------------------------------------------------------------------------
+//
+TBool CMPXDbAlbum::NeedToUpdateArt(const TDesC& aDeletedSongArt, const TDesC& aCurrentAlbumArt)
+    {    
+    if (aDeletedSongArt.Length() == 0)
+        {
+        // Deleted song's art has default album art
+        return EFalse;
+        }
+#ifdef ABSTRACTAUDIOALBUM_INCLUDED
+    else
+    if (aDeletedSongArt.Length() > 0)
+        {
+        TParsePtrC parse(aDeletedSongArt);
+        TPtrC ext(parse.Ext());
+        //set flag to false, so .alb will not overwrite art field in album, artist table 
+        // when song with embedded art
+        if (ext.CompareF(KAbstractAlbumExt) == 0) 
+            {     
+            // Deleted song's art is Non-embedded album art
+            return EFalse;
+            }
+        }
+    else
+#endif   
+    if (aDeletedSongArt.Length() > 0 && aCurrentAlbumArt.Length() > 0 && aDeletedSongArt.CompareF(aCurrentAlbumArt) == 0)
+        {
+        // Deleted song's art is Embedded album art and it is the same as Album's current art
+        return ETrue;
+        }
+    else
+        {
+        return EFalse;
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbAlbum::CreateTableL
+// ----------------------------------------------------------------------------
+//
+void CMPXDbAlbum::CreateTableL(
+    RSqlDatabase& aDatabase,
+    TBool /* aCorruptTable */)
+    {
+    MPX_FUNC("CMPXDbCategory::CreateTableL");
+
+    // create the table
+    User::LeaveIfError(aDatabase.Exec(KAlbumCreateTable));
+
+    // do not create an index on the Name field
+    // as it only slows down the insert/update queries overall
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbAlbum::CheckTableL
+// ----------------------------------------------------------------------------
+//
+TBool CMPXDbAlbum::CheckTableL(
+    RSqlDatabase& aDatabase)
+    {
+    MPX_FUNC("CMPXDbCategory::CheckTableL");
+
+    TBool check(DoCheckTable(aDatabase, KAlbumCheckTable));
+
+    return check;
+    }
+
 // End of File
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbartist.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbartist.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -42,12 +42,11 @@
 //
 CMPXDbArtist* CMPXDbArtist::NewL(
     CMPXDbManager& aDbManager,
-    TMPXGeneralCategory aCategory,
-    MMPXDbArtistObserver& aObserver)
+    TMPXGeneralCategory aCategory)
     {
     MPX_FUNC("CMPXDbArtist::NewL");
 
-    CMPXDbArtist* self = CMPXDbArtist::NewLC(aDbManager, aCategory, aObserver);
+    CMPXDbArtist* self = CMPXDbArtist::NewLC(aDbManager, aCategory);
     CleanupStack::Pop(self);
     return self;
     }
@@ -58,12 +57,11 @@
 //
 CMPXDbArtist* CMPXDbArtist::NewLC(
     CMPXDbManager& aDbManager,
-    TMPXGeneralCategory aCategory,
-    MMPXDbArtistObserver& aObserver)
+    TMPXGeneralCategory aCategory)
     {
     MPX_FUNC("CMPXDbArtist::NewLC");
 
-    CMPXDbArtist* self = new (ELeave) CMPXDbArtist(aDbManager, aCategory, aObserver);
+    CMPXDbArtist* self = new (ELeave) CMPXDbArtist(aDbManager, aCategory);
     CleanupStack::PushL(self);
     self->ConstructL();
     return self;
@@ -84,10 +82,8 @@
 //
 CMPXDbArtist::CMPXDbArtist(
     CMPXDbManager& aDbManager,
-    TMPXGeneralCategory aCategory,
-    MMPXDbArtistObserver& aObserver) :
-    CMPXDbCategory(aDbManager, aCategory),
-    iObserver(aObserver)
+    TMPXGeneralCategory aCategory) :
+    CMPXDbCategory(aDbManager, aCategory)
     {
     MPX_FUNC("CMPXDbArtist::CMPXDbArtist");
     }
@@ -108,58 +104,63 @@
 // ----------------------------------------------------------------------------
 //
 TUint32 CMPXDbArtist::AddItemL(
-    const TDesC& aName,
-    const TDesC& aArt,
+    TMPXGeneralCategory /*aCategory*/,        
+    const CMPXMedia& aMedia,
     TInt aDriveId,
     TBool& aNewRecord,
     TBool aCaseSensitive)
     {
     MPX_FUNC("CMPXDbArtist::AddItemL");
 
+    TPtrC artist(KNullDesC);
+    TPtrC albumArt(KNullDesC);
+    
+    if (aMedia.IsSupported(KMPXMediaMusicArtist))
+        {
+        artist.Set(aMedia.ValueText(KMPXMediaMusicArtist).Left(KMCMaxTextLen));
+        }
+    
+    if (aMedia.IsSupported(KMPXMediaMusicAlbumArtFileName))
+        {
+        albumArt.Set(aMedia.ValueText(KMPXMediaMusicAlbumArtFileName).Left(KMCMaxTextLen));
+        }
+       
     // try to find the item first
     TUint32 rowId(MPXDbCommonUtil::GenerateUniqueIdL(iDbManager.Fs(), iCategory,
-        aName, aCaseSensitive));
-    aNewRecord = !CategoryItemExistsL(aDriveId, rowId);
+        artist, aCaseSensitive));
 
-    if (aNewRecord)
+    HBufC* query = PreProcessStringLC(KQueryCategoryItem);
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(aDriveId, *query, rowId));
+    CleanupStack::PopAndDestroy(query);
+    CleanupClosePushL(recordset);
+    
+    TInt result(recordset.Next());
+    if (result == KSqlAtEnd)
         {
+        aNewRecord = result;
+        
         // insert new
-        HBufC* query = PreProcessStringLC(KQueryArtistInsert);
-        HBufC* name = MPXDbCommonUtil::ProcessSingleQuotesLC(aName);
-        HBufC* art = MPXDbCommonUtil::ProcessSingleQuotesLC(aArt);
+        HBufC* name = MPXDbCommonUtil::ProcessSingleQuotesLC(artist);
+        HBufC* art = MPXDbCommonUtil::ProcessSingleQuotesLC(albumArt);
 
-        iDbManager.ExecuteQueryL(aDriveId, *query, rowId, name, 1, art);
+        iDbManager.ExecuteQueryL(aDriveId, KQueryArtistInsert, rowId, name, 1, 0, art);
 
         CleanupStack::PopAndDestroy(art);
         CleanupStack::PopAndDestroy(name);
-        CleanupStack::PopAndDestroy(query);
         }
-    else
+    else if (result == KSqlAtRow)
         {
-        // retrieve the existing record
-        HBufC* query = NULL;
-        query = PreProcessStringLC(KQueryCategoryItem);
-        RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(*query, rowId));
-        CleanupStack::PopAndDestroy(query);
-
-        CleanupClosePushL(recordset);
-
-        if (recordset.Next() != KSqlAtRow)
-            {
-            User::Leave(KErrNotFound);
-        }
-
-        // Album Art
+        // retrieve Art from Artist table
         TPtrC art(KNullDesC);
         art.Set(MPXDbCommonUtil::GetColumnTextL(recordset, EArtistArt));
 
         // the current one is Unknown and the new one is Not Unknown
-        if ( art == KNullDesC && aArt != KNullDesC )
+        if ( art == KNullDesC && albumArt != KNullDesC )
             {
             HBufC* artReplaceSingleQuote = 
-                MPXDbCommonUtil::ProcessSingleQuotesLC( aArt );
+                MPXDbCommonUtil::ProcessSingleQuotesLC( albumArt );
             _LIT( KFormatArt, "Art=\'%S\'" );
-            HBufC* setStr = HBufC::NewLC(256);
+            HBufC* setStr = HBufC::NewLC(KMaxFileName);
             setStr->Des().Format( KFormatArt, artReplaceSingleQuote );
 
             iDbManager.ExecuteQueryL(aDriveId, KQueryArtistUpdate, setStr, rowId);
@@ -167,35 +168,68 @@
             CleanupStack::PopAndDestroy(artReplaceSingleQuote);
             }
 
-        CleanupStack::PopAndDestroy(&recordset);
-
         // increment the number of songs for the category
         query = PreProcessStringLC(KQueryCategoryIncrementSongCount);
         iDbManager.ExecuteQueryL(aDriveId, *query, rowId);
         CleanupStack::PopAndDestroy(query);
         }
-
+    else
+        {
+        MPX_DEBUG2("SQL error %d", result);
+        User::Leave(result);
+        }
+    
+    CleanupStack::PopAndDestroy(&recordset);
+    
     return rowId;
     }
-
+    
 // ----------------------------------------------------------------------------
-// CMPXDbArtist::IsUnknownArtistL
+// CMPXDbArtist::DecrementSongsForCategoryL
 // ----------------------------------------------------------------------------
 //
-TBool CMPXDbArtist::IsUnknownArtistL(TUint32 aId)
+void CMPXDbArtist::DecrementSongsForCategoryL(
+    const TUint32 aId,
+    TInt aDriveId,
+    CMPXMessageArray* aItemChangedMessages,
+    TBool& aItemExist
+#ifdef ABSTRACTAUDIOALBUM_INCLUDED
+    ,
+    TBool /*aMTPInUse*/
+#endif //ABSTRACTAUDIOALBUM_INCLUDED
+    )
     {
-	MPX_FUNC("CMPXDbArtist::IsUnknownArtistL");
-
-    HBufC* name = GetNameL(aId);
+    MPX_FUNC("CMPXDbArtist::DecrementSongsForCategoryL");
+    
+    TInt songsCount(0);
+    TInt albumsCount(0);
+    
+    GetSongsAndAlbumsCountL(aDriveId, aId, songsCount, albumsCount); 
+            
+    MPX_DEBUG4("id %d, songsCount %d, albumsCount %d", aId, songsCount, albumsCount);
+    
+    // if just one song uses this category. Use <= just in case
+    if (songsCount <= 1 && albumsCount == 0)  
+        {
+        aItemExist = EFalse;
+        // delete the category
+        DeleteCategoryL(aId, aDriveId);
 
-	TInt ret = EFalse;
-	if (*name == KNullDesC)
-		{
-		ret = ETrue;
-		}
-	delete name;
-
-	return ret;
+        if (aItemChangedMessages)
+            {
+            // add the item changed message
+            MPXDbCommonUtil::AddItemChangedMessageL(*aItemChangedMessages, aId, EMPXItemDeleted,
+                iCategory, KDBPluginUid);
+            }
+        }
+    else if (songsCount > 0)
+        {
+        aItemExist = ETrue;
+        // decrement the number of songs for the category
+        HBufC* query = PreProcessStringLC(KQueryCategoryDecrementSongCount);
+        iDbManager.ExecuteQueryL(aDriveId, *query, aId);
+        CleanupStack::PopAndDestroy(query);
+        }
     }
 
 // ----------------------------------------------------------------------------
@@ -237,10 +271,6 @@
                 }
             if (attributeId & EMPXMediaGeneralCount)
                 {
-//				TInt albumCount = GetAlbumsCountL(aRecord.ColumnInt64(EArtistUniqueId));
-//              aMedia.SetTObjectValueL<TInt>(KMPXMediaGeneralCount,albumCount);
-//              MPX_DEBUG1("	EMPXMediaGeneralCount");
-//				MPX_DEBUG2("	AlbumCount[%d]", albumCount);
                 // get songs count from all drives
                 TInt songCount = GetSongsCountL( KDbManagerAllDrives,
                                     aRecord.ColumnInt64( EArtistUniqueId ) );
@@ -281,17 +311,6 @@
     }
 
 // ----------------------------------------------------------------------------
-// CMPXDbArtist::GetAlbumsCountL
-// ----------------------------------------------------------------------------
-//
-TInt CMPXDbArtist::GetAlbumsCountL(TUint32 aId)
-    {
-    MPX_FUNC("CMPXDbArtist::GetAlbumsCountL");
-
-	return iObserver.HandleGetAlbumsCountForArtistL(aId);
-    }
-
-// ----------------------------------------------------------------------------
 // CMPXDbArtist::GetAllCategoryItemsL
 // ----------------------------------------------------------------------------
 //
@@ -300,9 +319,7 @@
     CMPXMediaArray& aMediaArray)
     {
     MPX_FUNC("CMPXDbArtist::GetAllCategoryItemsL");
-    HBufC* query = PreProcessStringLC(KQueryArtistAll);
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(*query));
-    CleanupStack::PopAndDestroy(query);
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryArtistAll()));
     CleanupClosePushL(recordset);
     ProcessRecordsetL(aAttrs, recordset, aMediaArray);
     CleanupStack::PopAndDestroy(&recordset);
@@ -343,37 +360,169 @@
     CleanupStack::PopAndDestroy(values);
     CleanupStack::PopAndDestroy(fields);
     }
+
 // ----------------------------------------------------------------------------
-// CMPXDbAlbum::CreateTableL
+// CMPXDbArtist::AddAlbumArtistL
+// ----------------------------------------------------------------------------
+//
+TUint32 CMPXDbArtist::AddAlbumArtistL(
+    const TDesC& aName,
+    const TDesC& aArt,
+    TInt aDriveId)
+    {
+    MPX_FUNC("CMPXDbArtist::AddAlbumArtistL");
+
+    // try to find the item first
+    TUint32 rowId(MPXDbCommonUtil::GenerateUniqueIdL(iDbManager.Fs(), iCategory,
+        aName, ETrue));
+    HBufC* query = PreProcessStringLC(KQueryCategoryItem);
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(aDriveId, *query, rowId));
+    CleanupStack::PopAndDestroy(query);
+    CleanupClosePushL(recordset);
+    
+    TInt result(recordset.Next());
+    if (result == KSqlAtEnd)
+        {
+        // insert new
+        HBufC* name = MPXDbCommonUtil::ProcessSingleQuotesLC(aName);
+        HBufC* art = MPXDbCommonUtil::ProcessSingleQuotesLC(aArt);
+
+        iDbManager.ExecuteQueryL(aDriveId, KQueryArtistInsert, rowId, name, 0, 1, art);
+
+        CleanupStack::PopAndDestroy(art);
+        CleanupStack::PopAndDestroy(name);
+        }
+    else if (result == KSqlAtRow)
+        {
+        // retrieve Art from Artist table
+        TPtrC art(KNullDesC);
+        art.Set(MPXDbCommonUtil::GetColumnTextL(recordset, EArtistArt));
+
+        // the current one is Unknown and the new one is Not Unknown
+        if ( art == KNullDesC && aArt != KNullDesC )
+            {
+            HBufC* artReplaceSingleQuote = 
+                MPXDbCommonUtil::ProcessSingleQuotesLC( aArt );
+            _LIT( KFormatArt, "Art=\'%S\'" );
+            HBufC* setStr = HBufC::NewLC(KMaxFileName);
+            setStr->Des().Format( KFormatArt, artReplaceSingleQuote );
+
+            iDbManager.ExecuteQueryL(aDriveId, KQueryArtistUpdate, setStr, rowId);
+            CleanupStack::PopAndDestroy(setStr);
+            CleanupStack::PopAndDestroy(artReplaceSingleQuote);
+            }
+
+        // increment the number of songs for the category
+        iDbManager.ExecuteQueryL(aDriveId, KQueryArtistIncrementAlbumCount, rowId);
+        }
+    else
+        {
+        MPX_DEBUG2("SQL error %d", result);
+        User::Leave(result);
+        }
+
+    CleanupStack::PopAndDestroy(&recordset);
+    
+    return rowId;
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbArtist::DecrementAlbumsForArtistL
+// ----------------------------------------------------------------------------
+//
+void CMPXDbArtist::DecrementAlbumsForArtistL(
+    const TUint32 aId,
+    TInt aDriveId,
+    CMPXMessageArray* aItemChangedMessages
+    )
+    {
+    MPX_FUNC("CMPXDbArtist::DecrementAlbumsForCategoryL");
+    
+    TInt songsCount(0);
+    TInt albumsCount(0);
+    
+    GetSongsAndAlbumsCountL(aDriveId, aId, songsCount, albumsCount);
+    
+    MPX_DEBUG4("id %d, songsCount %d, albumsCount %d", aId, songsCount, albumsCount);
+    
+    // if just one album uses this category. Use <= just in case
+    if (songsCount == 0 && albumsCount <= 1)
+        {
+        // delete the category
+        DeleteCategoryL(aId, aDriveId);
+
+        if (aItemChangedMessages)
+            {
+            // add the item changed message
+            MPXDbCommonUtil::AddItemChangedMessageL(*aItemChangedMessages, aId, EMPXItemDeleted,
+                iCategory, KDBPluginUid);
+            }
+        }
+    else if (albumsCount > 0)
+        {
+        // decrement the number of albums for the category
+        iDbManager.ExecuteQueryL(aDriveId, KQueryArtistDecrementAlbumCount, aId);
+        }
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbArtist::GetSongsAndAlbumsCountL
+// ----------------------------------------------------------------------------
+//
+void CMPXDbArtist::GetSongsAndAlbumsCountL(
+    TInt aDriveId,
+    TUint32 aId, 
+    TInt& aSongCount,
+    TInt& aAlbumCount)
+    {
+    MPX_FUNC("CMPXDbArtist::GetSongsAndAlbumsCountL");
+
+    RSqlStatement recordset(
+        iDbManager.ExecuteSelectQueryL(aDriveId, KQueryArtistGetSongCountAndAlbumCount, aId));
+    CleanupClosePushL(recordset);
+
+    TInt err(KErrNone);
+    while ((err = recordset.Next()) == KSqlAtRow)
+        {
+        aSongCount += recordset.ColumnInt(KMPXTableDefaultIndex);
+        aAlbumCount += recordset.ColumnInt(KMPXTableDefaultIndex+1);
+        }
+
+    if (err != KSqlAtEnd)
+        {
+        User::Leave(err);
+        }
+
+    CleanupStack::PopAndDestroy(&recordset);
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbArtist::CreateTableL
 // ----------------------------------------------------------------------------
 //
 void CMPXDbArtist::CreateTableL(
     RSqlDatabase& aDatabase,
     TBool /* aCorruptTable */)
     {
-    MPX_FUNC("CMPXDbCategory::CreateTableL");
+    MPX_FUNC("CMPXDbArtist::CreateTableL");
 
     // create the table
-    HBufC* query = PreProcessStringLC(KArtistCreateTable);
-    User::LeaveIfError(aDatabase.Exec(*query));
-    CleanupStack::PopAndDestroy(query);
+    User::LeaveIfError(aDatabase.Exec(KArtistCreateTable));
 
     // do not create an index on the Name field
     // as it only slows down the insert/update queries overall
     }
 
 // ----------------------------------------------------------------------------
-// CMPXDbAlbum::CheckTableL
+// CMPXDbArtist::CheckTableL
 // ----------------------------------------------------------------------------
 //
 TBool CMPXDbArtist::CheckTableL(
     RSqlDatabase& aDatabase)
     {
-    MPX_FUNC("CMPXDbCategory::CheckTableL");
+    MPX_FUNC("CMPXDbArtist::CheckTableL");
 
-    HBufC* query = PreProcessStringLC(KArtistCheckTable);
-    TBool check(DoCheckTable(aDatabase, *query));
-    CleanupStack::PopAndDestroy(query);
+    TBool check(DoCheckTable(aDatabase, KArtistCheckTable));
 
     return check;
     }
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbauxiliary.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbauxiliary.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -111,7 +111,7 @@
     {
     MPX_FUNC("CMPXDbAuxiliary::LastRefreshedTimeL");
 
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime));
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime())); 
     CleanupClosePushL(recordset);
 
     if (recordset.Next() != KSqlAtRow)
@@ -195,7 +195,7 @@
 
     TBool refreshed(ETrue);
 
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime));
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime())); 
     CleanupClosePushL(recordset);
 
     TInt count(0);
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbcategory.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbcategory.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -30,6 +30,7 @@
 #include "mpxdbpluginqueries.h"
 #include "mpxdbutil.h"
 #include "mpxdbcategory.h"
+#include "mpxmediamusicdefs.h"
 
 // CONSTANTS
 
@@ -79,23 +80,26 @@
 // ----------------------------------------------------------------------------
 //
 TUint32 CMPXDbCategory::AddItemL(
-    const TDesC& aName,
+    TMPXGeneralCategory aCategory,        
+    const CMPXMedia& aMedia,
     TInt aDriveId,
     TBool& aNewRecord,
     TBool aCaseSensitive)
     {
     MPX_FUNC("CMPXDbCategory::AddItemL");
 
+    TPtrC itemName(ItemNameL(aCategory, aMedia));
+    
     // try to find the item first
     TUint32 rowId(MPXDbCommonUtil::GenerateUniqueIdL(iDbManager.Fs(), iCategory,
-        aName, aCaseSensitive));
+        itemName, aCaseSensitive));
     aNewRecord = !CategoryItemExistsL(aDriveId, rowId);
 
     if (aNewRecord)
         {
         // insert new
         HBufC* query = PreProcessStringLC(KQueryCategoryInsert);
-        HBufC* name = MPXDbCommonUtil::ProcessSingleQuotesLC(aName);
+        HBufC* name = MPXDbCommonUtil::ProcessSingleQuotesLC(itemName);
 
         iDbManager.ExecuteQueryL(aDriveId, *query, rowId, name, 1);
 
@@ -112,7 +116,7 @@
 
     return rowId;
     }
-
+		
 // ----------------------------------------------------------------------------
 // CMPXDbCategory::GetNameL
 // ----------------------------------------------------------------------------
@@ -240,20 +244,37 @@
         }
 
     // construct criteria string
-    HBufC* criteriaStr = MPXDbCommonUtil::StringFromArrayLC(*criteriaArray, KMCAndKeyword);
+    HBufC* criteriaStr = NULL;
+    if (criteriaArray->Count() > 0)
+        {
+        criteriaStr = MPXDbCommonUtil::StringFromArrayLC(*criteriaArray, KMCAndKeyword);
+        }
+    else
+        {
+        _LIT(KCriteriaTrue, "1");
+        criteriaStr = KCriteriaTrue().AllocLC();
+        }
+        
+    RSqlStatement recordset;
+    if (iCategory == EMPXArtist)
+        {
+        recordset = iDbManager.ExecuteSelectQueryL(KQueryArtistItems, criteriaStr);
+        CleanupStack::PopAndDestroy(2, criteriaArray);  //criteriaStr, criteriaArray
+        }
+    else 
+        {
+        HBufC* query = PreProcessStringLC(KQueryCategoryItems);
+        recordset = iDbManager.ExecuteSelectQueryL(*query, criteriaStr);
+        CleanupStack::PopAndDestroy(3, criteriaArray);  //query, criteriaStr, criteriaArray 
+        }
 
-    // either get all items or items filtered based on criteria
-    HBufC* query = PreProcessStringLC(criteriaStr->Length() ?
-        KQueryCategoryItems() : KQueryCategoryAll());
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(*query, criteriaStr));
-    CleanupStack::PopAndDestroy(3, criteriaArray); // query, criteriaStr, criteriaArray
     CleanupClosePushL(recordset);
 
     // process the results
     ProcessRecordsetL(aAttrs, recordset, aMediaArray);
     CleanupStack::PopAndDestroy(&recordset);
     }
-
+        
 // ----------------------------------------------------------------------------
 // CMPXDbCategory::DecrementSongsForCategoryL
 // ----------------------------------------------------------------------------
@@ -486,7 +507,9 @@
     TInt /*aDriveId*/,
     CMPXMessageArray* /*aItemChangedMessages*/)
 	{
-	// nothing
+    MPX_FUNC("CMPXDbCategory::UpdateItemL");
+    
+	// do nothing
 	}
 
 // ----------------------------------------------------------------------------
@@ -574,7 +597,7 @@
 
 // ----------------------------------------------------------------------------
 // CMPXDbCategory::ProcessRecordsetL
-// Unknown item is stored in the database as NULL (name field). This ensures the
+// Unknown item is stored in the database as empty string (name field). This ensures the
 // unknown item to be the 1st found record if it exists. This will save time in
 // searching for the unknown record among the results and avoid performing
 // descriptor comparison. If the 1st record is the unknown item, it won't be
@@ -666,6 +689,46 @@
     }
 
 // ----------------------------------------------------------------------------
+// CMPXDbCategory::ItemNameL
+// ----------------------------------------------------------------------------
+//
+TPtrC CMPXDbCategory::ItemNameL(
+    TMPXGeneralCategory aCategory,        
+    const CMPXMedia& aMedia)
+    {
+    MPX_FUNC("CMPXDbCategory::ItemNameL");
+    
+    TMPXAttribute attribute;
+    switch(aCategory)
+        {
+        case EMPXGenre:
+            {
+            attribute = KMPXMediaMusicGenre;
+            break;
+            }
+        case EMPXComposer:
+            {
+            attribute = KMPXMediaMusicComposer;
+            break;
+            }
+        default:
+            {
+            User::Leave(KErrArgument);
+            break;
+            }
+        }
+    
+    if (aMedia.IsSupported(attribute))
+        {
+        return aMedia.ValueText(attribute).Left(KMCMaxTextLen);
+        }
+    else
+        {
+        return KNullDesC();
+        }
+    }
+
+// ----------------------------------------------------------------------------
 // CMPXDbCategory::CreateTableL
 // ----------------------------------------------------------------------------
 //
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbhandler.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbhandler.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -174,7 +174,7 @@
     //
     iDbMusic = CMPXDbMusic::NewL(*iDbManager, iResource, *this);
     iDbPlaylist = CMPXDbPlaylist::NewL(*iDbManager, *this);
-    iDbArtist = CMPXDbArtist::NewL(*iDbManager, EMPXArtist, *this);
+    iDbArtist = CMPXDbArtist::NewL(*iDbManager, EMPXArtist);
     iDbAlbum = CMPXDbAlbum::NewL(*iDbManager, EMPXAlbum, *this);
     iDbGenre = CMPXDbGenre::NewL(*iDbManager, EMPXGenre);
     iDbComposer = CMPXDbComposer::NewL(*iDbManager, EMPXComposer);
@@ -987,18 +987,18 @@
             {
             MPX_DEBUG1("    EMPXMediaGeneralCount");
 
-            attributes.Append(TMPXAttribute(KMPXMediaIdGeneral, attributeId & ~EMPXMediaGeneralCount));
+            attributes.AppendL(TMPXAttribute(KMPXMediaIdGeneral, attributeId & ~EMPXMediaGeneralCount));
 
             tryGetSongCount = ETrue;
             break;
             }
 
-        attributes.Append(aAttrs[i]);
+        attributes.AppendL(aAttrs[i]);
         }
 
     for (TInt j = i+1; j < attrCount; j++)
         {
-        attributes.Append(aAttrs[j]);
+        attributes.AppendL(aAttrs[j]);
         }
     iDbAlbum->GetSubCategoryItemsL(EMPXArtist, aArtistId, attributes.Array(), aMediaArray);
     CleanupStack::PopAndDestroy(&attributes);
@@ -2148,7 +2148,7 @@
     // Update the category records
     TBool categoryExist( EFalse );
     iDbArtist->DecrementSongsForCategoryL(artistID, drive, &aItemChangedMessages, categoryExist);
-    iDbAlbum->DecrementSongsForCategoryL(albumID, drive, &aItemChangedMessages, categoryExist, artistID, *art);
+    iDbAlbum->DecrementSongsForAlbumL(albumID, drive, &aItemChangedMessages, categoryExist, *art);
     iDbGenre->DecrementSongsForCategoryL(genreID, drive, &aItemChangedMessages, categoryExist);
     iDbComposer->DecrementSongsForCategoryL(composerID, drive, &aItemChangedMessages, categoryExist);
     CleanupStack::PopAndDestroy(art);
@@ -2551,7 +2551,16 @@
     //////////////////////////////////////////////////////////////////////
     else
         {
-        iDbMusic->FindSongsL(id, containerId, type, aCriteria, aAttrs, aMediaArray);
+        TBool sortByTrackOrder = EFalse;
+		
+        // construct the sort order depending on category. Albums are always sorted by track,
+        // then name, except for unknown album. Songs are sorted by name for unknown album.
+        // NULL track number is stored as KMaxTInt so that they will be sorted to the end
+        if ((type == EMPXGroup) && (MPX_ITEM_CATEGORY(id) == EMPXAlbum) && !iDbAlbum->IsUnknownAlbumL(id))
+            {
+            sortByTrackOrder = ETrue;
+            }
+        iDbMusic->FindSongsL(id, containerId, type, aCriteria, aAttrs, aMediaArray, sortByTrackOrder);
         }
     }
 
@@ -3037,103 +3046,63 @@
 #endif // RD_MULTIPLE_DRIVE
 
 // ----------------------------------------------------------------------------
+// CMPXDbHandler::AddAbstractAlbumItemL
+// ----------------------------------------------------------------------------
+//
+#ifdef ABSTRACTAUDIOALBUM_INCLUDED
+TUint32 CMPXDbHandler::AddAbstractAlbumItemL(
+    const TDesC& aName,
+    TInt aDriveId,
+    CMPXMessageArray* aItemChangedMessages,
+    TBool& aItemExist,
+    const TDesC& aUri,
+    const TDesC& aAlbumArtist
+    )
+    {
+    MPX_FUNC("CMPXDbHandler::AddAbstractAlbumItemL()");
+
+    MPX_PERF_START(CMPXDbHandler_AddAbstractAlbumItemL);
+    
+    TBool newRecord(EFalse);
+    TUint32 id(0);
+
+    //AbstractAlbum is not case sensitive
+    id =  iDbAbstractAlbum->AddItemL(aUri, aName, aAlbumArtist, aDriveId, newRecord, EFalse);
+    MPX_PERF_END(CMPXDbHandler_AddAbstractAlbumItemL);
+    
+    return id;
+    }
+#endif
+
+// ----------------------------------------------------------------------------
 // CMPXDbHandler::AddCategoryItemL
 // ----------------------------------------------------------------------------
 //
 TUint32 CMPXDbHandler::AddCategoryItemL(
     TMPXGeneralCategory aCategory,
-    const TDesC& aName,
+    const CMPXMedia& aMedia,
     TInt aDriveId,
     CMPXMessageArray* aItemChangedMessages,
-    TBool& aItemExist
-#ifdef ABSTRACTAUDIOALBUM_INCLUDED
-    ,const TDesC& aUri
-    ,const TDesC& aAlbumArtist
-#endif // ABSTRACTAUDIOALBUM_INCLUDED
-    )
+    TBool& aItemExist)
     {
     MPX_FUNC("CMPXDbHandler::AddCategoryItemL()");
-
+    
     MPX_PERF_START(CMPXDbHandler_AddCategoryItemL);
 
+    ASSERT(aCategory != EMPXAbstractAlbum);
+	
     TBool newRecord(EFalse);
-#ifdef ABSTRACTAUDIOALBUM_INCLUDED
-    TUint32 id(0);
-    //for AbstractAlbum, SetAbstractAlbum, associate songs with abstractalbum.
-    //only called with newRecord as EFalse
-    //increment songCount if id exist in AbstractAlbum table, otherwise do nothing.
-
-    //only Genre, AbstractAlbum are not case sensitive
-    TBool caseSensitive = ETrue;
-    if ((aCategory == EMPXGenre) || (aCategory == EMPXAbstractAlbum))
-        caseSensitive = EFalse;
-
-    if (aCategory == EMPXAbstractAlbum)
-        {
-        id =  iDbAbstractAlbum->AddItemL(aUri, aName, aAlbumArtist, aDriveId, newRecord, caseSensitive);
-        }
-    else
-        {
-        id = DbCategoryL(aCategory)->AddItemL(aName, aDriveId, newRecord, caseSensitive);
-#else
-    TUint32 id(DbCategoryL(aCategory)->AddItemL(aName, aDriveId, newRecord, (aCategory != EMPXGenre)));
-#endif // ABSTRACTAUDIOALBUM_INCLUDED
+
+    TUint32 id = DbCategoryL(aCategory)->AddItemL(aCategory, aMedia, aDriveId, newRecord, aCategory != EMPXGenre);
 
     if (newRecord && aItemChangedMessages)
         {
         MPXDbCommonUtil::AddItemChangedMessageL(*aItemChangedMessages, id, EMPXItemInserted,
             aCategory, KDBPluginUid);
         }
-    // when the added item's category is Genre or Composer,
-    // and it is NOT a new record,
+    // when the added item's category is Genre, Composer or Artist, and it is NOT a new record,
     // we should send the item number changed message
-    else if ( ( aCategory == EMPXGenre || aCategory == EMPXComposer ) &&
-            !newRecord && aItemChangedMessages )
-        {
-        MPXDbCommonUtil::AddItemChangedMessageL(*aItemChangedMessages, id, EMPXItemModified,
-            aCategory, KDBPluginUid);
-        }
-    aItemExist = !newRecord;
-#ifdef ABSTRACTAUDIOALBUM_INCLUDED      
-       }
-#endif // ABSTRACTAUDIOALBUM_INCLUDED
-    MPX_PERF_END(CMPXDbHandler_AddCategoryItemL);
-    return id;
-    }
-
-TUint32 CMPXDbHandler::AddCategoryItemL(
-        TMPXGeneralCategory aCategory,
-        const TDesC& aName,
-        const TDesC& aArtistName,
-        const TDesC& aArt,
-        TInt aDriveId,
-        CMPXMessageArray* aItemChangedMessages,
-        TBool& aItemExist)
-	{
-    MPX_FUNC("CMPXDbHandler::AddCategoryItemL()");
-
-    MPX_PERF_START(CMPXDbHandler_AddCategoryItemL);
-
-    TBool newRecord(EFalse);
-
-    TUint32 id = 0;
-    if(aCategory == EMPXAlbum)
-        {
-        id = iDbAlbum->AddItemL(aName, aArtistName, aArt, aDriveId, newRecord, (aCategory != EMPXGenre));
-        }
-    else
-        {
-        id = iDbArtist->AddItemL(aName, aArt, aDriveId, newRecord, (aCategory != EMPXGenre));
-        }
-
-    if (newRecord && aItemChangedMessages)
-        {
-        MPXDbCommonUtil::AddItemChangedMessageL(*aItemChangedMessages, id, EMPXItemInserted,
-            aCategory, KDBPluginUid);
-        }
-    // when the added item's category is Artist, and it is NOT a new record,
-    // we should send the item number changed message
-    else if (  aCategory == EMPXArtist &&
+    else if ( ( aCategory == EMPXGenre || aCategory == EMPXComposer || aCategory == EMPXArtist) &&
             !newRecord && aItemChangedMessages )
         {
         MPXDbCommonUtil::AddItemChangedMessageL(*aItemChangedMessages, id, EMPXItemModified,
@@ -3142,31 +3111,23 @@
     aItemExist = !newRecord;
     MPX_PERF_END(CMPXDbHandler_AddCategoryItemL);
 
-    return id;
+    return id;    
     }
 
+// ----------------------------------------------------------------------------
+// CMPXDbHandler::UpdateCategoryItemL
+// ----------------------------------------------------------------------------
+//
 void CMPXDbHandler::UpdateCategoryItemL(
-        TMPXGeneralCategory aCategory,
-        TUint32 aCategoryId,
-        const CMPXMedia& aMedia,
-        TInt aDrive,
-        CMPXMessageArray* aItemChangedMessages)
+    TMPXGeneralCategory aCategory,
+    TUint32 aCategoryId,
+    const CMPXMedia& aMedia,
+    TInt aDrive,
+    CMPXMessageArray* aItemChangedMessages)
     {
-    switch(aCategory)
-        {
-        case EMPXAlbum:
-            iDbAlbum->UpdateItemL(aCategoryId, aMedia, aDrive, aItemChangedMessages);
-            break;
-
-        case EMPXArtist:
-            iDbArtist->UpdateItemL(aCategoryId, aMedia, aDrive, aItemChangedMessages);
-            break;
-
-        default:
-            DbCategoryL(aCategory)->UpdateItemL(aCategoryId, aMedia, aDrive, aItemChangedMessages);
-            break;
-        }
+    DbCategoryL(aCategory)->UpdateItemL(aCategoryId, aMedia, aDrive, aItemChangedMessages);
     }
+
 // ----------------------------------------------------------------------------
 // CMPXDbHandler::DeleteSongForCategoryL
 // ----------------------------------------------------------------------------
@@ -3176,11 +3137,21 @@
     TUint32 aCategoryId,
     TInt aDriveId,
     CMPXMessageArray* aItemChangedMessages,
-    TBool& aItemExist)
+    TBool& aItemExist,
+    const TDesC& aArt   
+    )
     {
     MPX_FUNC("CMPXDbHandler::DeleteSongForCategoryL");
-    DbCategoryL(aCategory)->DecrementSongsForCategoryL(aCategoryId, aDriveId,
-        aItemChangedMessages, aItemExist);
+    switch(aCategory)
+        {
+        case EMPXAlbum:
+            iDbAlbum->DecrementSongsForAlbumL(aCategoryId, aDriveId, aItemChangedMessages, aItemExist, aArt);
+            break;
+        default:
+            DbCategoryL(aCategory)->DecrementSongsForCategoryL(aCategoryId, aDriveId,
+                    aItemChangedMessages, aItemExist);
+            break;
+        }
     }
 
 // ----------------------------------------------------------------------------
@@ -3221,7 +3192,6 @@
         SetTObjectValueL<TMPXItemId>(KMPXMessageMediaDeprecatedId, plId);
     }
 
-
 // ---------------------------------------------------------------------------
 // CMPXDbHandler::IsRemoteDrive
 // ---------------------------------------------------------------------------
@@ -3267,28 +3237,6 @@
     CleanupStack::PopAndDestroy(&attributes);        
     }
 
-TInt CMPXDbHandler::HandleGetAlbumsCountForArtistL(TUint32 aArtistId)
-    {
-    return iDbAlbum->GetAlbumsCountForArtistL(aArtistId);
-    }
-
-TBool CMPXDbHandler::HandleIsUnknownArtistL(TUint32 aArtistId)
-    {
-    return iDbArtist->IsUnknownArtistL(aArtistId);
-    }
-
-// ---------------------------------------------------------------------------
-// CMPXDbHandler::HandleArtistForAlbumL
-// ---------------------------------------------------------------------------
-//
-HBufC* CMPXDbHandler::HandleArtistForAlbumL(const TUint32 aAlbumId)
-    {
-
-    TUint32 artistId = iDbMusic->ArtistForAlbumL(aAlbumId);
-    HBufC* artistname = GetNameMatchingIdL(artistId);
-    return artistname;
-    }
-
 // ---------------------------------------------------------------------------
 // CMPXDbHandler::HandleAlbumartForAlbumL
 // ---------------------------------------------------------------------------
@@ -3297,6 +3245,7 @@
     {
     return iDbMusic->AlbumartForAlbumL(aAlbumId, aArt);
     }
+
 #ifdef ABSTRACTAUDIOALBUM_INCLUDED   
 // ----------------------------------------------------------------------------------------------------------
 // CMPXDbHandler::HandleGetAlbumNameForSongL
@@ -3307,4 +3256,43 @@
     return iDbAbstractAlbum->GetUriL(aId);
     }
 #endif // ABSTRACTAUDIOALBUM_INCLUDED
+
+// ----------------------------------------------------------------------------
+// CMPXDbHandler::DeleteAlbumForArtistL
+// ----------------------------------------------------------------------------
+//
+void CMPXDbHandler::DeleteAlbumForArtistL(TUint32 aCategoryId,
+    TInt aDrive, CMPXMessageArray* aItemChangedMessages)
+    {
+    MPX_FUNC("CMPXDbHandler::DeleteAlbumForArtistL");
+    iDbArtist->DecrementAlbumsForArtistL(aCategoryId, aDrive, aItemChangedMessages);
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbHandler::AddAlbumArtistL
+// ----------------------------------------------------------------------------
+//
+TUint32 CMPXDbHandler::AddAlbumArtistL(const TDesC& aName, const TDesC& aArt, TInt aDriveId)
+    {
+    MPX_FUNC("CMPXDbHandler::AddAlbumArtistL");
+    return iDbArtist->AddAlbumArtistL(aName, aArt, aDriveId);
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbHandler::GenerateUniqueIdForAlbumL
+// ----------------------------------------------------------------------------
+//
+TUint32 CMPXDbHandler::GenerateUniqueIdForAlbumL(const CMPXMedia& aMedia)
+    {
+    return iDbAlbum->GenerateUniqueIdL(aMedia);
+    }
+
+// ----------------------------------------------------------------------------
+// CMPXDbHandler::IsUnknownAlbumL
+// ----------------------------------------------------------------------------
+//
+TBool CMPXDbHandler::IsUnknownAlbumL(const TUint32 aId)
+    {
+    return iDbAlbum->IsUnknownAlbumL(aId);
+    }
 // End of file
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbmusic.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbmusic.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -42,12 +42,6 @@
 
 // CONSTANTS
 
-// This is what KNullDesC album computes to for the hash
-// to-do: generate this Id through
-//        MPXDbUtil::GenerateUniqueIdL(EMPXAlbum, KNullDesC, EFalse)
-//        instead of hard-coding the number so if GenerateUniqueIdL
-//        is modified, this constant doesn't need to be redefined
-const TInt KUnknownAlbumID = 1770790356;
 // UniqueID column in Uris requests
 const TInt KColUniqueID = 0;
 // URI column in Uris requests
@@ -254,22 +248,25 @@
             User::Leave(KErrNotFound);
             }
 
+#ifdef ABSTRACTAUDIOALBUM_INCLUDED        
+        iArtNeedUpdated = ETrue;    // reset flag
+#endif
         TDriveUnit driveUnit(MPXDbCommonUtil::GetDriveIdMatchVolIdL(iDbManager.Fs(),
           recordset.ColumnInt64(EMusicVolumeId)));
         visible = DoUpdateSongL(aSongId, aMedia, driveUnit, aItemChangedMessages,
           recordset);
-
+        
 #ifdef ABSTRACTAUDIOALBUM_INCLUDED
         if(iArtNeedUpdated)
             {
 #endif // ABSTRACTAUDIOALBUM_INCLUDED
 	        // Update Album table
-	        if (aMedia.IsSupported(KMPXMediaMusicAlbumArtFileName) || aMedia.IsSupported(KMPXMediaMusicArtist))
+            if (aMedia.IsSupported(KMPXMediaMusicAlbumArtFileName))
 	            {
 	            TUint32 albumId = recordset.ColumnInt64(EMusicAlbum);
 	            iObserver.UpdateCategoryItemL(EMPXAlbum, albumId, aMedia, driveUnit, aItemChangedMessages);
 	            }
-
+            
 	        // Update Artist table
 	        if ( aMedia.IsSupported(KMPXMediaMusicAlbumArtFileName) )
 	            {
@@ -278,7 +275,6 @@
 	            }
 #ifdef ABSTRACTAUDIOALBUM_INCLUDED
             }
-        iArtNeedUpdated = ETrue;  //reset flag
 #endif // ABSTRACTAUDIOALBUM_INCLUDED
         CleanupStack::PopAndDestroy(&recordset);
         }
@@ -712,7 +708,7 @@
     // Run query and add result media objects to the cache array.
     MPX_FUNC("CMPXDbMusic::ExecuteQueryAllSongsL");
 
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryMusicGetAllSongsMinimum));
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryMusicGetAllSongsMinimum()));
     CleanupClosePushL(recordset);
 
     TInt err(KErrNone);
@@ -813,7 +809,7 @@
     MPX_FUNC("CMPXDbMusic::GetSongsForAlbumL");
 
     TPtrC query;
-    if (aAlbumId == KUnknownAlbumID)
+    if (iObserver.IsUnknownAlbumL(aAlbumId))
         {
         query.Set(ExtraFieldsRequired(aAttrs) ? KQueryMusicGetSongsForUnknownAlbum() :
             KQueryMusicGetSongsForUnknownAlbumNoCategories());
@@ -994,7 +990,9 @@
     TMPXGeneralType aType,
     const CMPXMedia& aCriteria,
     const TArray<TMPXAttribute>& aAttrs,
-    CMPXMediaArray& aMediaArray)
+    CMPXMediaArray& aMediaArray,
+    TBool aSortByTrackOrder   
+    )
     {
     MPX_FUNC("CMPXDbMusic::FindSongsL");
 
@@ -1002,12 +1000,8 @@
     HBufC* criteriaStr = GenerateMusicMatchingCriteriaLC(aGeneralId, aContainerId, aType,
         aCriteria);
 
-    // construct the sort order depending on category. Albums are always sorted by track,
-    // then name, except for unknown album. Songs are sorted by name for unknown album.
-    // NULL track number is stored as KMaxTInt so that they will be sorted to the end
-    TPtrC sortOrder;
-    if ((aType == EMPXGroup) && (MPX_ITEM_CATEGORY(aGeneralId) == EMPXAlbum) &&
-        (aGeneralId != MPXDbCommonUtil::GenerateUniqueIdL(iDbManager.Fs(), EMPXAlbum, KNullDesC, EFalse)))
+    TPtrC sortOrder;  
+    if (aSortByTrackOrder)
         {
         sortOrder.Set(KQueryMusicFindAllSortOrderTrack);
         }
@@ -1015,7 +1009,7 @@
         {
         sortOrder.Set(KQueryMusicFindAllSortOrderTitle);
         }
-
+        
     // construct the query
     HBufC* query = HBufC::NewLC(KQueryMusicFindAll().Length() + criteriaStr->Length() +
         sortOrder.Length());
@@ -1100,32 +1094,13 @@
     }
 
 // ----------------------------------------------------------------------------
-// CMPXDbMusic::ArtistForAlbumL
-// ----------------------------------------------------------------------------
-//
-TUint32 CMPXDbMusic::ArtistForAlbumL(const TUint32 aId)
-    {
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryMusicGetArtistForAlbum, aId));
-
-    CleanupClosePushL(recordset);
-    if (recordset.Next() != KSqlAtRow)
-        {
-        User::Leave(KErrNotFound);
-        }
-
-    TUint32 artistId = recordset.ColumnInt64(KMPXTableDefaultIndex);
-    CleanupStack::PopAndDestroy(&recordset);
-
-    return artistId;
-    }
-
-// ----------------------------------------------------------------------------
 // CMPXDbMusic::AlbumartForAlbumL
 // ----------------------------------------------------------------------------
 //
 HBufC* CMPXDbMusic::AlbumartForAlbumL(const TUint32 aAlbumId, TPtrC aArt)
     {
-	  MPX_FUNC("CMPXDbMusic::AlbumartForAlbumL");
+	MPX_FUNC("CMPXDbMusic::AlbumartForAlbumL");
+	
     RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryMusicGetAlbumartForAlbum, aAlbumId));
     HBufC* albumart(NULL);
    
@@ -2134,14 +2109,13 @@
 
     // update the artist field
     TUint32 id(0);
-    TUint32 artistIdForAlbum(artistId);
     if (UpdateCategoryFieldL(EMPXArtist, aMedia, KMPXMediaMusicArtist, artistId,
         aDrive, aItemChangedMessages, id, art))
         {
         MPXDbCommonUtil::AppendValueL(aFields, aValues, KMCMusicArtist, id);
         metaDataModified = (aMusicTable != NULL);
         visibleChange = CMPXDbActiveTask::EAllVisible;
-        artistIdForAlbum = id;
+        iArtNeedUpdated = EFalse;
         }
 
     // update the album field
@@ -2167,6 +2141,7 @@
             MPXDbCommonUtil::AddItemChangedMessageL(*aItemChangedMessages, albumId,
                     EMPXItemInserted, EMPXAlbum, KDBPluginUid);
             }
+        iArtNeedUpdated = EFalse;
         }
 
     // update the genre field
@@ -2468,8 +2443,17 @@
     TUint32 aOldId,
     TInt aDriveId,
     CMPXMessageArray* aItemChangedMessages,
-    TUint32& aItemId, const TDesC& aArt)
+    TUint32& aItemId, 
+    const TDesC& aArt)
     {
+    MPX_FUNC("CMPXDbMusic::UpdateCategoryFieldL");
+    
+	if (aCategory == EMPXAlbum)
+	    {
+	    return UpdateCategoryFieldForAlbumL(aMedia, aAttribute, aOldId, 
+	        aDriveId, aItemChangedMessages, aItemId, aArt);
+	    }
+	
     TBool updated(EFalse);
     TBool itemNotRemoved( EFalse );
     TBool itemAdded( EFalse );
@@ -2496,7 +2480,6 @@
                       
             aItemId = MPXDbCommonUtil::GenerateUniqueIdL(iDbManager.Fs(), aCategory,
                 name, caseSensitive);
-
 #else
             // only genre is not case sensitive
             aItemId = MPXDbCommonUtil::GenerateUniqueIdL(iDbManager.Fs(), aCategory,
@@ -2511,8 +2494,8 @@
                     {
                     if (aMedia.ValueTObjectL<TMPXGeneralCategory>(KMPXMediaGeneralCategory) == EMPXSong )
                         {
-                        iObserver.AddCategoryItemL(aCategory, KNullDesC, aDriveId,
-                          aItemChangedMessages, itemAdded, name, KNullDesC);                
+                        iObserver.AddAbstractAlbumItemL(KNullDesC, aDriveId,
+                            aItemChangedMessages, itemAdded, name, KNullDesC);                
                         }
                     else
                         {     
@@ -2523,50 +2506,40 @@
                             albumartist.Set(aMedia.ValueText(KMPXMediaMusicAlbumArtist).Left(KMCMaxTextLen));
                             //get AlbumArt AbstractAlbum
                             MPX_DEBUG2("     albumartist[%S]", &albumartist);
-                             }
+                            }
                         if (aMedia.IsSupported(KMPXMediaGeneralTitle) )
-                          {                         
-                          abstractAlbumName.Set(aMedia.ValueText(KMPXMediaGeneralTitle).Left(KMCMaxTextLen));
-                          MPX_DEBUG2("     abstractAlbumName[%S]", &abstractAlbumName);
-                          }                                                     
-                      // ignore the return value 
-                      
-                      iObserver.AddCategoryItemL(aCategory, abstractAlbumName, aDriveId,
-                          aItemChangedMessages, itemAdded, name, albumartist);       
+                            {                         
+                            abstractAlbumName.Set(aMedia.ValueText(KMPXMediaGeneralTitle).Left(KMCMaxTextLen));
+                            MPX_DEBUG2("     abstractAlbumName[%S]", &abstractAlbumName);
+                            }
+                        
+                        // ignore the return value                       
+                        iObserver.AddAbstractAlbumItemL(abstractAlbumName, aDriveId,
+                            aItemChangedMessages, itemAdded, name, albumartist);       
                         }
                     }
                 else
 #endif // ABSTRACTAUDIOALBUM_INCLUDED
-                    if (aCategory == EMPXArtist || aCategory == EMPXAlbum)
+                if (aCategory == EMPXArtist)
                     {
-                    TPtrC art(KNullDesC);
-                    TPtrC artistname(KNullDesC);
-
-                    if (aMedia.IsSupported(KMPXMediaMusicAlbumArtFileName))
-                        {
-                        art.Set(aMedia.ValueText(KMPXMediaMusicAlbumArtFileName).Left(KMCMaxTextLen));
-                        }
-                    if (aCategory == EMPXAlbum)
+                    //for the update case, need to maintain art field for Artist/Album table.
+                    if (aOldId && (aOldId != aItemId))
                         {
-                        if (aMedia.IsSupported(KMPXMediaMusicArtist))
-                            {
-                            artistname.Set(aMedia.ValueText(KMPXMediaMusicArtist).Left(KMCMaxTextLen));
-                            }
+                        CMPXMedia* media = CMPXMedia::NewL(aMedia);
+                        CleanupStack::PushL(media);
+                        media->SetTextValueL(KMPXMediaMusicAlbumArtFileName, aArt);                        
+                        iObserver.AddCategoryItemL(aCategory, *media, aDriveId, aItemChangedMessages, itemAdded);                        
+                        CleanupStack::PopAndDestroy(media);
+                        } 
+                    else
+                        {      
+                        iObserver.AddCategoryItemL(aCategory, aMedia, aDriveId, aItemChangedMessages, itemAdded);
                         }
-                    //for the update case, need to maitain art field for Artist/Album table.
-                    if (aOldId && (aOldId != aItemId))
-                       {
-                       iObserver.AddCategoryItemL(aCategory, name, artistname, aArt, aDriveId, aItemChangedMessages, itemAdded);  
-                       } 
-                    else
-                       {      
-                       iObserver.AddCategoryItemL(aCategory, name, artistname, art, aDriveId, aItemChangedMessages, itemAdded);
-                       }
                     }
                 else
                     {
                     // ignore the return value
-                    iObserver.AddCategoryItemL(aCategory, name, aDriveId,
+                    iObserver.AddCategoryItemL(aCategory, aMedia, aDriveId,
                         aItemChangedMessages, itemAdded);
                     }
                 updated = ETrue;
@@ -2594,37 +2567,18 @@
                     TPtrC abstractAlbumName(aMedia.ValueText(KMPXMediaGeneralTitle).Left(KMCMaxTextLen));
                     MPX_DEBUG2("    Music abstractAlbumName[%S]", &abstractAlbumName);     
                     // ignore the return value
-                    iObserver.AddCategoryItemL(aCategory, abstractAlbumName, aDriveId,
-                       aItemChangedMessages, itemAdded, KNullDesC, albumartist);     
+                    iObserver.AddAbstractAlbumItemL(abstractAlbumName, aDriveId,
+                        aItemChangedMessages, itemAdded, KNullDesC, albumartist);     
                     }            
                else
 #endif // ABSTRACTAUDIOALBUM_INCLUDED        
-                    if (aCategory == EMPXArtist || aCategory == EMPXAlbum)
-                   {
-                   TPtrC art(KNullDesC);
-                   TPtrC artistname(KNullDesC);
-                   if (aMedia.IsSupported(KMPXMediaMusicAlbumArtFileName))
-                       {
-                       art.Set(aMedia.ValueText(KMPXMediaMusicAlbumArtFileName).Left(KMCMaxTextLen));
-                        }
-                   if (aCategory == EMPXAlbum)
-                       {
-                       if (aMedia.IsSupported(KMPXMediaMusicArtist))
-                           {
-                           artistname.Set(aMedia.ValueText(KMPXMediaMusicArtist).Left(KMCMaxTextLen));
-                           }
-                       }
-                   iObserver.AddCategoryItemL(aCategory, KNullDesC, artistname, art, aDriveId,
-                        aItemChangedMessages, itemAdded);
-                   }
-               else
                    {
                    // ignore the return value
-                      iObserver.AddCategoryItemL(aCategory, KNullDesC, aDriveId,
-                            aItemChangedMessages, itemAdded);
-                      }
-                 updated = ETrue;
-                 }
+                   iObserver.AddCategoryItemL(aCategory, aMedia, aDriveId,
+                       aItemChangedMessages, itemAdded);
+                   }
+               updated = ETrue;
+               }
             }
 
         if (aOldId && (aOldId != aItemId))
@@ -2690,7 +2644,6 @@
     return updated;
     }
 
-
 // ----------------------------------------------------------------------------
 // CMPXDbMusic::ExtraFieldsRequired
 // ----------------------------------------------------------------------------
@@ -2771,4 +2724,120 @@
         ;
     }
 
+// ----------------------------------------------------------------------------
+// CMPXDbMusic::UpdateCategoryFieldForAlbumL
+// ----------------------------------------------------------------------------
+//
+TBool CMPXDbMusic::UpdateCategoryFieldForAlbumL(
+    const CMPXMedia& aMedia,
+    const TMPXAttribute& aAttribute,
+    TUint32 aOldId,
+    TInt aDriveId,
+    CMPXMessageArray* aItemChangedMessages,
+    TUint32& aItemId, 
+    const TDesC& aArt)
+    {
+    MPX_FUNC("CMPXDbMusic::UpdateCategoryFieldForAlbumL");
+
+    TBool updated(EFalse);
+    TBool itemNotRemoved( EFalse );
+    TBool itemAdded( EFalse );
+
+    // update category table and add category Id to the music table
+    if (!aOldId || aMedia.IsSupported(aAttribute))
+        {
+        TInt changeMsgCount( 0 );
+        if( aItemChangedMessages )
+            {
+            changeMsgCount = aItemChangedMessages->Count();
+            }
+            
+        // construct the new ID for the category record
+        aItemId = iObserver.GenerateUniqueIdForAlbumL(aMedia);
+            
+        if (!aOldId || (aOldId != aItemId))
+            {
+            // only add if the ID changed,
+            // otherwise the song was updated but the artist name was not
+
+            //for the update case, need to maitain art field for Artist/Album table.
+            if (aOldId && (aOldId != aItemId))
+                {
+                CMPXMedia* media = CMPXMedia::NewL(aMedia);
+                CleanupStack::PushL(media);
+                media->SetTextValueL(KMPXMediaMusicAlbumArtFileName, aArt);
+                
+                iObserver.AddCategoryItemL(EMPXAlbum, *media, aDriveId, aItemChangedMessages, itemAdded);
+                CleanupStack::PopAndDestroy(media);
+                }  
+            else // !aOldId
+                {
+                iObserver.AddCategoryItemL(EMPXAlbum, aMedia, aDriveId, aItemChangedMessages, itemAdded);
+                }                
+            updated = ETrue;
+            }
+
+        if (aOldId && (aOldId != aItemId))
+            {
+            iObserver.DeleteSongForCategoryL(EMPXAlbum, aOldId, aDriveId, 
+                aItemChangedMessages, itemNotRemoved, aArt);
+            updated = ETrue;
+            }
+
+        // Special case where the item(s) has been renamed.
+        // In this case, a new category is created +1 change msg
+        //               a old category is removed +1 change msg
+        // We merge these 2 change messages into one using the deprecated ID
+        //
+        if( aItemChangedMessages )
+            {
+            TInt newChangeMsgCount( aItemChangedMessages->Count() );
+            if(  newChangeMsgCount - changeMsgCount > 0 )
+                {
+                TInt oldId = KErrNotFound;
+                TInt newId = KErrNotFound;
+                for( TInt i=0; i<newChangeMsgCount; ++i )
+                    {
+                    CMPXMessage& msg = *(*aItemChangedMessages)[i];
+
+                    TMPXItemId id = msg.ValueTObjectL<TMPXItemId>(KMPXMessageMediaGeneralId);
+                    TMPXChangeEventType changeType = msg.ValueTObjectL<TMPXChangeEventType>(KMPXMessageChangeEventType);
+
+                    // Look for the added and deleted category IDs
+                    //
+                    if( id == aOldId && changeType == EMPXItemDeleted )
+                        {
+                        oldId = i;
+                        }
+                    else if( id == aItemId && changeType == EMPXItemInserted )
+                        {
+                        newId = i;
+                        }
+                    }// for
+
+                if( oldId != KErrNotFound &&
+                    newId != KErrNotFound )
+                    {
+                    aItemChangedMessages->Remove(oldId);  // category removed
+                    aItemChangedMessages->Remove(newId);  // category added
+                    MPXDbCommonUtil::AddItemChangedMessageL(*aItemChangedMessages, aItemId, EMPXItemModified,
+                                                            EMPXAlbum, KDBPluginUid, aOldId );
+                    }
+                else if ( oldId !=KErrNotFound && itemAdded ) // old item removed, new item already exist
+                    {
+                    MPXDbCommonUtil::AddItemChangedMessageL(*aItemChangedMessages, aItemId, EMPXItemModified,
+                                                            EMPXAlbum, KDBPluginUid, aOldId );
+                    }
+                else if ( newId !=KErrNotFound && itemNotRemoved ) // new item added, old item still exist
+                    {
+                    MPXDbCommonUtil::AddItemChangedMessageL(*aItemChangedMessages, aOldId, EMPXItemModified,
+                                                            EMPXAlbum, KDBPluginUid, aItemId );
+                    }
+                }
+            }// aItemChangedMessages
+        }// if (!aOldId || aMedia.IsSupported(aAttribute))
+
+    return updated;
+    }
+
 // End of File
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbplugin/src/mpxdbauxiliary.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbplugin/src/mpxdbauxiliary.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -111,7 +111,7 @@
     {
     MPX_FUNC("CMPXDbAuxiliary::LastRefreshedTimeL");
 
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime));
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime())); 
     CleanupClosePushL(recordset);
 
     if (recordset.Next() != KSqlAtRow)
@@ -195,7 +195,7 @@
 
     TBool refreshed(ETrue);
 
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime));
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime())); 
     CleanupClosePushL(recordset);
 
     TInt count(0);
--- a/mpxplugins/serviceplugins/collectionplugins/mpxsqlitepodcastdbplugin/src/mpxdbauxiliary.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitepodcastdbplugin/src/mpxdbauxiliary.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -112,7 +112,7 @@
     {
     MPX_FUNC("CMPXDbAuxiliary::LastRefreshedTimeL");
 
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime));
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime()));
     CleanupClosePushL(recordset);
 
     if (recordset.Next() != KSqlAtRow)
@@ -195,7 +195,7 @@
 
     TBool refreshed(ETrue);
 
-    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime));
+    RSqlStatement recordset(iDbManager.ExecuteSelectQueryL(KQueryAuxiliaryGetTime()));
     CleanupClosePushL(recordset);
 
     TInt count(0);
--- a/mpxplugins/viewplugins/views/collectionviewhg/src/mpxcollectionviewhgcontainer.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/viewplugins/views/collectionviewhg/src/mpxcollectionviewhgcontainer.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -801,8 +801,15 @@
             SetRect( clientRect );
             iBgContext->SetRect(((CAknAppUi*)iCoeEnv->AppUi())->ApplicationRect());
 
-            // call HandleLbxItemAdditionL
-            HandleLbxItemAdditionL();
+ 			if ( iCurrentViewType == EMPXViewMediawall )
+				{
+				PrepareTboneViewL();
+				}
+			else
+				{
+	            // call HandleLbxItemAdditionL
+	            HandleLbxItemAdditionL();
+				}
             }
         );
     if(iMediaWall)
@@ -1304,11 +1311,6 @@
                 {
                 RestoreSelectedAlbumItemL(mediaArray);
                 PrepareMediaWallWithListL( mediaArray, count );
-                // We need to adjust the CBA for this view.
-                if( iCbaHandler )
-                    {
-                    iCbaHandler->UpdateCba();
-                    }
                 break;
                 }
             case EMPXViewList:
@@ -1726,7 +1728,10 @@
 
     ((CAknAppUi*)iCoeEnv->AppUi())->StatusPane()->MakeVisible(EFalse);
     iThumbnailManager->SetSizeL( EAudioGridThumbnailSize );
-
+    if( iCbaHandler )
+        {
+        iCbaHandler->UpdateCba();
+        }
     TRect clientRect = ((CAknView*)iView)->ClientRect();
 
     TAknLayoutRect mediawallLayout;
@@ -4729,7 +4734,7 @@
         SetupTransitionType(KMPXInterviewTransition);
         BeginFullScreenAnimation();
         }
-    else if( !iLayoutSwitch && iMediaWall )
+    else if( !iLayoutSwitch && iMediaWall && ( iCurrentViewType == EMPXViewMediawall ) )
         {
         // Close mediawall "flip animation"
         iMediaWall->StartOpeningAnimationL( EFalse );
@@ -4765,6 +4770,7 @@
 		listSize++;
 		indexAddition = 1;
 		}
+	currentList->Reset(); //clears any selection along with list reset	
 	// Add space for shuffle item if list contains more than one item.
 	currentList->ResizeL( listSize );
 
--- a/mpxplugins/viewplugins/views/collectionviewhg/src/mpxcollectionviewhgimp.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/viewplugins/views/collectionviewhg/src/mpxcollectionviewhgimp.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -308,6 +308,7 @@
     delete iCurrentCba;
     delete iIncrementalOpenUtil;
     delete iCachedSelectionIndex;
+    delete iCurrentSelectedIndex;
     FeatureManager::UnInitializeLib();
     delete iOperatorMusicStoreName ;
     if ( iOperatorMusicStoreURI )
@@ -6979,7 +6980,20 @@
     CEikMenuPane* aMenuPane )
     {
     MPX_FUNC( "CMPXCollectionViewHgImp::DynInitMenuPaneL" );
-
+    
+    if ( iContainer->IsTBoneView() )
+        {
+	    //makesure mediawall is not flicking before handling long tap
+	    TInt currentIndex( iContainer->CurrentLbxItemIndex() );
+	    MPX_DEBUG2( "CMPXCollectionViewHgImp::DynInitMenuPaneL currentIndex = %d", currentIndex );
+	    if (currentIndex == KErrNotFound)
+	        {
+	        MPX_DEBUG1( "DynInitMenuPaneL NOT handling stylus popup menu when flicking");        
+	        DimAllOptions(aResourceId, aMenuPane);
+	        return;
+	        }
+        }
+        
     CMPXCollectionViewListBoxArray* array =
         static_cast<CMPXCollectionViewListBoxArray*>(
         iContainer->ListBoxArray() );
@@ -8532,6 +8546,7 @@
             aMenuPane->SetItemDimmed( EMPXCmdFindInMusicShop, ETrue );
             aMenuPane->SetItemDimmed( EMPXCmdSongDetails, ETrue );
             aMenuPane->SetItemDimmed( EMPXCmdPlaylistDetails, ETrue );
+			aMenuPane->SetItemDimmed( EMPXCmdUseAsCascade, ETrue ); 
             break;
             }
         case R_AVKON_MENUPANE_MARKABLE_LIST:
--- a/mpxplugins/viewplugins/views/embeddedplaybackview/src/mpxembeddedplaybackviewimp.cpp	Wed Sep 01 12:32:02 2010 +0100
+++ b/mpxplugins/viewplugins/views/embeddedplaybackview/src/mpxembeddedplaybackviewimp.cpp	Tue Sep 14 21:14:08 2010 +0300
@@ -549,7 +549,7 @@
                 fileParse.Path().Left(
                     KMPXMusicplayerPrivateFolder().Length())));
 
-        if ( iCommonUiHelper->IsHostMessagingL()
+        if ( (iCommonUiHelper->IsHostMessagingL() || iCommonUiHelper->IsHostCalendarL() )
                 && mediapath.CompareF(savedpath) && isPrivate )
             {
             HandleSaveL( (TMPXNpvSaveMode)aCommand );
--- a/musicplayer_plat/mpx_music_player_app_api/inc/mpxcommonuihelper.h	Wed Sep 01 12:32:02 2010 +0100
+++ b/musicplayer_plat/mpx_music_player_app_api/inc/mpxcommonuihelper.h	Tue Sep 14 21:14:08 2010 +0300
@@ -91,6 +91,13 @@
     * @return ETrue if host is messaging, EFalse otherwise
     */
     IMPORT_C TBool IsHostMessagingL();
+		
+	/**
+    * Check if the host application is calendar
+    * @since Symbian^3
+    * @return ETrue if host is calendar, EFalse otherwise
+    */
+    IMPORT_C TBool IsHostCalendarL();
 
     /**
     * Check if the host application is browser