diff -r 3de6c4cf6b67 -r 2cbbefa9af78 mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbhgplugin/src/mpxdbcategory.cpp
--- 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
 // ----------------------------------------------------------------------------
 //