author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 15:12:29 +0300 | |
branch | RCL_3 |
changeset 52 | 14979e23cb5e |
permissions | -rw-r--r-- |
52
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/* |
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* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: This class is responsible for Artist table. |
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* |
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* |
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*/ |
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#ifndef MPXDBARTIST_H |
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#define MPXDBARTIST_H |
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// INCLUDES |
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#include "mpxdbcategory.h" |
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// CLASS DECLARATION |
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|
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/** |
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* Responsible for managing all music databases |
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* |
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* @lib MPXDbPlugin.lib |
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*/ |
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class CMPXDbArtist : |
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public CMPXDbCategory |
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{ |
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public: |
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/** |
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* Two-phased constructor. |
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* @param aDbManager database manager to use for database interactions |
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* @param aCategory identifies the category |
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* @return New CMPXDbArtist instance. |
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*/ |
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static CMPXDbArtist* NewL(CMPXDbManager& aDbManager, |
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TMPXGeneralCategory aCategory); |
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|
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/** |
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* Two-phased constructor. |
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* @param aDbManager database manager to use for database interactions |
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* @param aCategory identifies the category |
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* @return New CMPXDbArtist instance on the cleanup stack. |
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*/ |
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static CMPXDbArtist* NewLC(CMPXDbManager& aDbManager, |
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TMPXGeneralCategory aCategory); |
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/** |
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* Destructor |
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*/ |
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virtual ~CMPXDbArtist(); |
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public: |
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/** |
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* Add a artist item. If the record already exists, its counter will |
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* be incremented. |
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* @param aCategory category type |
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* @param aMedia: This is the media object |
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* @param aDriveId: The Drive Id the name (category) belongs |
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* @param aNewRecord: indicates to the caller if a new record is created. |
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* ETrue if a new row is created in the table; otherwise EFalse. |
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* @return The unique id of the row added. |
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*/ |
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virtual TUint32 AddItemL(TMPXGeneralCategory aCategory, const CMPXMedia& aMedia, TInt aDriveId, TBool& aNewRecord, |
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TBool aCaseSensitive = ETrue); |
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/** |
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* Gets the details for all category items. |
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* @param aAttrs attributes to be returned |
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* @param aMediaArray returns the requested attributes for all items |
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*/ |
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void GetAllCategoryItemsL(const TArray<TMPXAttribute>& aAttrs, |
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CMPXMediaArray& aMediaArray); |
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/** |
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* Update a category item. |
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* @param aId: The ID of the category to update |
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* @param aMedia: The media data |
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* @param aDriveId: The Drive Id the name (category) belongs |
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* @param aItemChangedMessages: if valid on return contains a updated message if the |
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* category was updated |
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*/ |
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virtual void UpdateItemL(TUint32 aId, const CMPXMedia& aMedia, TInt aDriveId, CMPXMessageArray* aItemChangedMessages); |
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/** |
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* Decrement the number of songs for the item. If the song and album count gets to 0, |
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* remove the item. |
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* @param aId: The ID of the category to delete. |
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* @param aDriveId: The drive Id the name (category) belongs to. Songs on different |
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* drives may belong to the same album or artist; consequently, one |
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* row for each artist/album id and drive ID pair will exist in the |
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* lookup table with a count existing for each row that tracks the |
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* number number of songs on that drive with that album/artist. |
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* @param aItemChangedMessages if valid on return contains a deleted message if the |
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* category was deleted |
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* @param aItemExist Out parameter, ETrue if the category is not deleted after the delete, |
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* EFalse otherwise |
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*/ |
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#ifdef ABSTRACTAUDIOALBUM_INCLUDED |
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virtual void DecrementSongsForCategoryL(TUint32 aId, TInt aDriveId, |
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CMPXMessageArray* aItemChangedMessages, TBool& aItemExist, TBool aMtpInUse = EFalse); |
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#else |
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virtual void DecrementSongsForCategoryL(TUint32 aId, TInt aDriveId, |
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CMPXMessageArray* aItemChangedMessages, TBool& aItemExist); |
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#endif //ABSTRACTAUDIOALBUM_INCLUDED |
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|
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/** |
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* Add a AlbumArtist. If the record already exists, its counter will |
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* be incremented. |
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* @param aName: This is the name to be entered into the row |
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* @param aArt: Album art |
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* @param aDriveId: The Drive Id the name (category) belongs |
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* @return The unique id of the row added. |
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*/ |
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TUint32 AddAlbumArtistL(const TDesC& aName, const TDesC& aArt, TInt aDriveId); |
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|
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/** |
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* Decrement the number of albums for the item. If the song and album count gets to 0, |
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* remove the item. |
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* @param aId: The ID of the category to delete. |
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* @param aDriveId: The drive Id the name (category) belongs to. Songs on different |
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* drives may belong to the same album or artist; consequently, one |
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* row for each artist/album id and drive ID pair will exist in the |
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* lookup table with a count existing for each row that tracks the |
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* number number of songs on that drive with that album/artist. |
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* @param aItemChangedMessages if valid on return contains a deleted message if the |
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* category was deleted |
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*/ |
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void DecrementAlbumsForArtistL(TUint32 aId, TInt aDriveId, |
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CMPXMessageArray* aItemChangedMessages); |
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|
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private: |
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|
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/** |
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* Updates the media with information from the table |
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* @param aRecord record containing the source fields |
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* @param aAttrs attributes to be returned |
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* @param aMedia returns the requested attributes |
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*/ |
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void UpdateMediaL(RSqlStatement& aRecord, const TArray<TMPXAttribute>& aAttrs, |
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CMPXMedia& aMedia); |
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|
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/** |
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* Generate searching criteria for artist table from the given criteria |
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* @param aMedia media data |
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* @param aFields fields of Artist table |
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* @param aValues values of each field of Artist table |
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* @return a string containing the selection criteria. The ownership is passed to the caller. |
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*/ |
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void GenerateArtistFieldsValuesL(const CMPXMedia& aMedia, |
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CDesCArray& aFields, CDesCArray& aValues); |
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|
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/** |
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* Gets the Songs count and Albums count for a Artist item |
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* @param aDrivceId The Drive Id the name (category) belongs |
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* @param aId identifies the Artist item |
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* @param aSongsCount songs count |
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* @param aAlbumsCount albums count |
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*/ |
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void GetSongsAndAlbumsCountL(TInt aDriveId, TUint32 aId, TInt& aSongsCount, TInt& aAlbumsCount); |
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|
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private: // from MMPXTable |
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|
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/** |
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* @see MMPXTable |
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*/ |
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virtual void CreateTableL(RSqlDatabase& aDatabase, TBool aCorruptTable); |
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|
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/** |
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* @see MMPXTable |
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*/ |
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virtual TBool CheckTableL(RSqlDatabase& aDatabase); |
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|
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private: |
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|
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/** |
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* C++ constructor. |
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* @param aDbManager database manager to use for database interactions |
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* @param aCategory identifies the category |
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*/ |
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CMPXDbArtist(CMPXDbManager& aDbManager, TMPXGeneralCategory aCategory); |
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|
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/** |
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* Second phase constructor. |
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*/ |
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void ConstructL(); |
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|
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private: |
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|
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/** |
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* Column indexes in the category tables |
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*/ |
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enum TArtistColumns |
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{ |
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EArtistUniqueId = KMPXTableDefaultIndex, |
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EArtistName, |
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EArtistSongCount, |
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EArtistAlbumCount, |
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EArtistArt, |
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EArtistFieldCount |
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}; |
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}; |
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#endif // MPXDBARTIST_H |
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// End of File |