diff -r 82baf59ce8dd -r ecf06a08d4d9 mpserviceplugins/mpxsqlitedbhgplugin/inc/mpxdbabstractalbum.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mpserviceplugins/mpxsqlitedbhgplugin/inc/mpxdbabstractalbum.h Mon May 03 12:29:20 2010 +0300 @@ -0,0 +1,208 @@ +/* +* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: This class is responsible for all category tables (Artist, +* Album, Genre, Composer, AbstractAlbum). +* +* +*/ + + +#ifndef MPXDBABSTRACTALBUM_H +#define MPXDBABSTRACTALBUM_H + +// INCLUDES +#include +#include +#include "mpxdbcategory.h" + + +// CLASS FORWARDS + +// CLASS DECLARATION + +/** +* Responsible for managing all music databases +* +* @lib MPXDbPlugin.lib +*/ + +class CMPXDbAbstractAlbum : + public CMPXDbCategory, + public MThumbnailManagerObserver + { + public: + + /** + * Two-phased constructor. + * @param aDbManager database manager to use for database interactions + * @param aCategory identifies the category + * @return New CMPXDbCategory instance. + */ + static CMPXDbAbstractAlbum* NewL(CMPXDbManager& aDbManager, + TMPXGeneralCategory aCategory); + + /** + * Two-phased constructor. + * @param aDbManager database manager to use for database interactions + * @param aCategory identifies the category + * @return New CMPXDbCategory instance on the cleanup stack. + */ + static CMPXDbAbstractAlbum* NewLC(CMPXDbManager& aDbManager, + TMPXGeneralCategory aCategory); + + /** + * Destructor + */ + virtual ~CMPXDbAbstractAlbum(); + + /** + * Find the drive Id for a abstractalbum + * @param aAbstractAlbumId identifies the abstractalbum + * @return corresponding drive id + */ + TInt GetDriveIdL(TUint32 aAbstractAlbumId); + + /** + * 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 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& aAlbumArtist, const TDesC& aGenre, TInt aDriveId, TBool& aNewRecord, + TBool aCaseSensitive = ETrue); + + /** + * Decrement the number of songs for the item. If the 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 + */ + void DecrementSongsForCategoryL(TUint32 aId, TInt aDriveId, + CMPXMessageArray* aItemChangedMessages, TBool& aItemExist, TBool aMtpInUse); + + /** + * Remove a abstractalbum and return its URI + * @param aAbstractAlbumId identifies the abstractalbum + * @return HBufC containing the URI. Ownership is transferred. + */ + HBufC* DeleteAbstractAlbumL(TUint32 aAbstractAlbumId, TInt aDriveId = 0); + + /** + * 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); + + private: + + + /** + * Updates the media with information from the table + * @param aRecord record containing the source fields + * @param aAttrs attributes to be returned + * @param aMedia returns the requested attributes + */ + void UpdateMediaL(RSqlStatement& aRecord, const TArray& aAttrs, + CMPXMedia& aMedia); + + /** + * Generate searching criteria for album table from the given criteria + * @param aMedia media data + * @param aFields fields of Album table + * @param aValues values of each field of Album table + * @return a string containing the selection criteria. The ownership is passed to the caller. + */ + void GenerateAbstractAlbumFieldsValuesL(const CMPXMedia& aMedia, + CDesCArray& aFields, CDesCArray& aValues); + + + /** + * @see MMPXTable + */ + virtual void CreateTableL(RSqlDatabase& aDatabase, TBool aCorruptTable); + + + + /** + * @see MMPXTable + */ + virtual TBool CheckTableL(RSqlDatabase& aDatabase); + + + + /** + * C++ constructor. + * @param aDbManager database manager to use for database interactions + * @param aCategory identifies the category + */ + CMPXDbAbstractAlbum(CMPXDbManager& aDbManager, TMPXGeneralCategory aCategory); + + /** + * Second phase constructor. + */ + void ConstructL(); + + + /** + * MThumbnailManagerObserver + */ + void ThumbnailPreviewReady( + MThumbnailData& aThumbnail, TThumbnailRequestId aId ); + /** + * MThumbnailManagerObserver + */ + void ThumbnailReady( + TInt aError, + MThumbnailData& aThumbnail, TThumbnailRequestId aId ); + + public: + + /** + * Column indexes in the category tables + */ + enum TAbstractAlbumColumns + { + EAbstractAlbumUniqueId = KMPXTableDefaultIndex, + EAbstractAlbumName, + EAbstractAlbumArtist, + EAbstractAlbumGenre, + EAbstractAlbumSongCount, + EAbstractAlbumVolumeId, + EAbstractAlbumFieldCount + }; + + private: // Data + CThumbnailManager* iTNManager; + + }; +#endif // MPXDBAbstractAlbum_H + +// End of File