qtmobility/plugins/contacts/symbian/src/filtering/cntfilterrelationship.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
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     7 ** This file is part of the QtCore module of the Qt Toolkit.
       
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     9 ** $QT_BEGIN_LICENSE:LGPL$
       
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    14 ** this package.
       
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    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
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    20 ** packaging of this file.  Please review the following information to
       
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    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
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    33 **
       
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    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "cntfilterrelationship.h"
       
    43 #include "qcontactrelationshipfilter.h"
       
    44 #include "cnttransformcontact.h"
       
    45 
       
    46 QTM_USE_NAMESPACE
       
    47 
       
    48 
       
    49 
       
    50 CntFilterRelationship::CntFilterRelationship(CContactDatabase& contactDatabase,CntSymbianSrvConnection &cntServer,CntDbInfo& dbInfo) 
       
    51                                         : m_contactdatabase(contactDatabase),
       
    52                                           m_srvConnection(cntServer),
       
    53                                           m_dbInfo(dbInfo)
       
    54 {
       
    55 
       
    56 }
       
    57 
       
    58 CntFilterRelationship::~CntFilterRelationship()
       
    59 {
       
    60     
       
    61 }
       
    62 
       
    63 QList<QContactLocalId> CntFilterRelationship::contacts(
       
    64         const QContactFilter &filter,
       
    65         const QList<QContactSortOrder> &sortOrders,
       
    66         bool &filterSupportedflag,
       
    67         QContactManager::Error &error)  
       
    68 {
       
    69     Q_UNUSED(sortOrders);
       
    70     Q_UNUSED(filterSupportedflag);
       
    71     //Check if any invalid filter is passed 
       
    72     if(!filterSupported(filter) )
       
    73         {
       
    74         error =  QContactManager::NotSupportedError;
       
    75         return QList<QContactLocalId>();
       
    76         }
       
    77     QList<QContactLocalId> idList;
       
    78     QContactRelationshipFilter relationfilter(filter);
       
    79  
       
    80     QString sqlQuery;
       
    81     getSqlquery(relationfilter,sqlQuery,error);
       
    82     
       
    83    
       
    84     //fetch the contacts
       
    85     idList =  m_srvConnection.searchContacts(sqlQuery, error);
       
    86     return idList;
       
    87 
       
    88     
       
    89     
       
    90 }
       
    91 
       
    92 
       
    93 bool CntFilterRelationship::filterSupported(const QContactFilter& filter) 
       
    94 {
       
    95     bool result = false;
       
    96     if(QContactFilter::RelationshipFilter == filter.type())
       
    97     {
       
    98         QContactRelationshipFilter relationfilter(filter);
       
    99         if(relationfilter.relationshipType() == QContactRelationship::HasMember)
       
   100         {
       
   101             result = true;
       
   102         }
       
   103     }
       
   104  
       
   105     return result;
       
   106 }
       
   107 
       
   108 void CntFilterRelationship::createSelectQuery(const QContactFilter& filter,
       
   109                               QString& sqlQuery,
       
   110                               QContactManager::Error& error)
       
   111 
       
   112 {
       
   113     //Notthing done as of now
       
   114     Q_UNUSED(filter);
       
   115     Q_UNUSED(sqlQuery);
       
   116     Q_UNUSED(error);
       
   117     
       
   118 }
       
   119 
       
   120 
       
   121 void CntFilterRelationship::getSqlquery( const QContactRelationshipFilter& relationfilter,
       
   122                                                QString& sqlquery ,
       
   123                                                QContactManager::Error& error) const
       
   124 {
       
   125 
       
   126     Q_UNUSED(error);
       
   127 QContactId  id_to_search = relationfilter.otherParticipantId();
       
   128 
       
   129 if(relationfilter.role() == QContactRelationshipFilter::First )
       
   130     {
       
   131     sqlquery = QString("SELECT DISTINCT contact_group_id FROM  groups WHERE contact_group_member_id = %1").arg(id_to_search.localId());
       
   132 
       
   133     }
       
   134 else if(relationfilter.role() == QContactRelationshipFilter::Second )
       
   135     {
       
   136     sqlquery = QString("SELECT DISTINCT contact_group_member_id FROM  groups WHERE contact_group_id = %1").arg(id_to_search.localId());
       
   137 
       
   138     }
       
   139 else if(relationfilter.role() == QContactRelationshipFilter::Either )
       
   140     {
       
   141     sqlquery = QString("SELECT contact_group_member_id FROM  groups WHERE contact_group_id = %1").arg(id_to_search.localId());
       
   142                + " union " + 
       
   143                QString("SELECT DISTINCT  contact_group_id FROM  groups WHERE contact_group_id = %1").arg(id_to_search.localId());
       
   144     }
       
   145 
       
   146 }
       
   147