imservices/xmppsettingsapi/src/xmppsettingscolumn.cpp
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     1 /*
       
     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  This class handles columns.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include <centralrepository.h>
       
    20 
       
    21 //XMPP includes
       
    22 //#include "// GFLOGger.h"
       
    23 
       
    24 #include "xmppsettingscolumn.h"
       
    25 #include "xmppsettingsapicommon.h"
       
    26 
       
    27 // ======== MEMBER FUNCTIONS ========
       
    28 
       
    29 CXmppSettingsColumn::CXmppSettingsColumn(
       
    30     CRepository& aRepository ):
       
    31     iRepository( aRepository )
       
    32     {
       
    33 
       
    34     }
       
    35 
       
    36 
       
    37 void CXmppSettingsColumn::ConstructL()
       
    38     {
       
    39 
       
    40     }
       
    41 
       
    42 
       
    43 CXmppSettingsColumn* CXmppSettingsColumn::NewL(
       
    44     CRepository& aRepository )
       
    45     {
       
    46     CXmppSettingsColumn* self = CXmppSettingsColumn::NewLC( aRepository );
       
    47     CleanupStack::Pop( self );
       
    48     return self;
       
    49     }
       
    50 
       
    51 
       
    52 CXmppSettingsColumn* CXmppSettingsColumn::NewLC(
       
    53     CRepository& aRepository )
       
    54     {
       
    55     CXmppSettingsColumn* self
       
    56         = new( ELeave ) CXmppSettingsColumn( aRepository );
       
    57     CleanupStack::PushL( self );
       
    58     self->ConstructL();
       
    59     return self;
       
    60     }
       
    61 
       
    62 
       
    63 CXmppSettingsColumn::~CXmppSettingsColumn()
       
    64     {
       
    65 
       
    66     }
       
    67 
       
    68 
       
    69 // ---------------------------------------------------------------------------
       
    70 // Checks does given column exist. If not, it creates new entry.
       
    71 // ---------------------------------------------------------------------------
       
    72 //
       
    73 void CXmppSettingsColumn::GetColumnKeyL(
       
    74     const TDesC& aAttrName,
       
    75     TBool aCreateColumnIfNotExist,
       
    76     TUint32& aColKey )
       
    77     {
       
    78     TRAPD( error, FindByNameL( aAttrName,
       
    79                                aColKey ) );
       
    80 
       
    81     // LOGERR("CXmppSettingsColumn::GetColumnKeyL - error: %d",error);
       
    82 
       
    83     // Column was not found, but user want's to create new one.
       
    84     if ( error == KErrNotFound  && aCreateColumnIfNotExist )
       
    85         {
       
    86        // GFLOG1("CXmppSettingsColumn::GetColumnKeyL - column is not found => Create new");
       
    87         //create new
       
    88         TUint32 newColKey( 0 );
       
    89         NextFreeSlotL( newColKey );
       
    90        // GFLOG2("CXmppSettingsColumn::GetColumnKeyL - newColKey: 0x%08x",newColKey);
       
    91 
       
    92         // Set column name to COLUMN-table.
       
    93         User::LeaveIfError( iRepository.Create( newColKey, aAttrName ) );
       
    94         aColKey = newColKey;
       
    95         }
       
    96     // Column was not found, but user does not want to create new.
       
    97     else if( error == KErrNotFound  && !aCreateColumnIfNotExist )
       
    98         {
       
    99        // GFLOG1("CXmppSettingsColumn::GetColumnKeyL - column is not found => New not wanted - leaving");
       
   100         User::Leave( KErrNotFound );
       
   101         }
       
   102     // other error occured -> Leave.
       
   103     else if ( error != KErrNone )
       
   104         {
       
   105        // GFLOG1("CXmppSettingsColumn::GetColumnKeyL - error occured - leaving");
       
   106         User::Leave( error );
       
   107         }
       
   108     // Col found.
       
   109     else
       
   110         {
       
   111         // Everything ok.
       
   112         }
       
   113     }
       
   114 
       
   115 // ---------------------------------------------------------------------------
       
   116 // Tries to find a column key by searching with the column name.
       
   117 // ---------------------------------------------------------------------------
       
   118 //
       
   119 void CXmppSettingsColumn::FindByNameL(
       
   120     const TDesC& aColumnName,
       
   121     TUint32& aColumnKey )
       
   122     {
       
   123 
       
   124     RArray<TUint32> keys;
       
   125     CleanupClosePushL( keys );
       
   126 
       
   127     TInt error( KErrNone );
       
   128 
       
   129     error = iRepository.FindEqL( KXmppKeyColumnTable,
       
   130                                  KXmppMaskColumns,
       
   131                                  aColumnName,
       
   132                                  keys );
       
   133 
       
   134     // LOGERR("CXmppSettingsColumn::FindByNameL - error: %d", error);
       
   135     User::LeaveIfError ( error );
       
   136 
       
   137    // GFLOG1("CXmppSettingsColumn::FindByColumnName - column found.");
       
   138     aColumnKey = keys[0];
       
   139 
       
   140 
       
   141 //    DEBUG_BLOCK( 
       
   142     
       
   143     if ( keys.Count() > 1 )
       
   144                     {
       
   145                     // this should not happen. if it does, it is bug in somewhere in this component.
       
   146                    // GFLOG1("CXmppSettingsColumn::FindByColumnName - WHAAAAT! TO MANY RESULTS -> LEAVE!");
       
   147                     User::Leave( KErrGeneral );
       
   148                     }
       
   149  //               );
       
   150     CleanupStack::PopAndDestroy( &keys );
       
   151 
       
   152     }
       
   153 
       
   154 
       
   155 // PRIVATE METHODS
       
   156 
       
   157 
       
   158 // ---------------------------------------------------------------------------
       
   159 // Returns the next free setting slot.
       
   160 // ---------------------------------------------------------------------------
       
   161 //
       
   162 void CXmppSettingsColumn::NextFreeSlotL(
       
   163     TUint32& aColKey )
       
   164     {
       
   165 
       
   166     RArray<TUint32> results;
       
   167     CleanupClosePushL( results );
       
   168 
       
   169     // First, find all rows and get count.
       
   170     TInt error = iRepository.FindL( KXmppKeyColumnTable,
       
   171                                     KXmppMaskColumns,
       
   172                                     results );
       
   173 
       
   174     TInt count = results.Count();
       
   175    // GFLOG2("CXmppSettingsColumn::NextFreeSlotL - count: %d",count);
       
   176     CleanupStack::PopAndDestroy( &results );
       
   177 
       
   178     if ( count > 0 )
       
   179         {
       
   180         // Count can be used as new key
       
   181         aColKey = count;
       
   182         }
       
   183     else
       
   184         {
       
   185         // First column ever
       
   186         aColKey = 0;
       
   187         }
       
   188 
       
   189    // GFLOG2("CXmppSettingsColumn::NextFreeSlotL - aColKey: 0x%08x",aColKey);
       
   190 
       
   191     }