Improvement of PIM-SQL Databases, but search queries are still limited.

Addressbook: Changed table layout. Now, we just need 1/3 of disk-space.
Todo: Started to add new attributes. Some type conversions missing.

3 files changed, 366 insertions, 41 deletions

diff --git a/libopie/pim/ocontactaccessbackend_sql.cpp b/libopie/pim/ocontactaccessbackend_sql.cpp
index 4afa5f3..132c9fc 100644
--- a/libopie/pim/ocontactaccessbackend_sql.cpp
+++ b/libopie/pim/ocontactaccessbackend_sql.cpp
@@ -11,12 +11,17 @@
  * =====================================================================
  * =====================================================================
  * Version: $Id$
  * =====================================================================
  * History:
  * $Log$
+ * Revision 1.2  2003/09/29 07:44:26  eilers
+ * Improvement of PIM-SQL Databases, but search queries are still limited.
+ * Addressbook: Changed table layout. Now, we just need 1/3 of disk-space.
+ * Todo: Started to add new attributes. Some type conversions missing.
+ *
  * Revision 1.1  2003/09/22 14:31:16  eilers
  * Added first experimental incarnation of sql-backend for addressbook.
  * Some modifications to be able to compile the todo sql-backend.
  * A lot of changes fill follow...
  *
  */
@@ -34,12 +39,28 @@
 #include <opie/oconversion.h>
 #include <opie2/osqldriver.h>
 #include <opie2/osqlresult.h>
 #include <opie2/osqlmanager.h>
 #include <opie2/osqlquery.h>
 
+
+
+
+// If defined, we use a horizontal table ( uid, attr1, attr2, attr3, ..., attrn ) instead
+// vertical like "uid, type, value".
+// DON'T DEACTIVATE THIS DEFINE IN PRODUCTIVE ENVIRONMENTS !!
+#define __STORE_HORIZONTAL_
+
+// Distinct loading is not very fast. If I expect that every person has just
+// one (and always one) 'Last Name', I can request all uid's for existing lastnames, 
+// which is faster..
+// But this may not be true for all entries, like company contacts..
+// The current AddressBook application handles this problem, but other may not.. (eilers)
+#define __USE_SUPERFAST_LOADQUERY
+
+
 /*
  * Implementation of used query types
  * CREATE query
  * LOAD query
  * INSERT
  * REMOVE
@@ -137,52 +158,65 @@ namespace {
         };
         
 
 
         // We using three tables to store the information:
         // 1. addressbook  : It contains General information about the contact (non custom)
-        // 2. dates        : Stuff like birthdays, anniversaries, etc.
-        // 3. custom_data  : Not official supported entries
+        // 2. custom_data  : Not official supported entries
         // All tables are connected by the uid of the contact.
         // Maybe I should add a table for meta-information ? 
         CreateQuery::CreateQuery() : OSQLQuery() {}
         CreateQuery::~CreateQuery() {}
         QString CreateQuery::query()const {
                 QString qu;
+#ifdef __STORE_HORIZONTAL_
+
+                qu += "create table addressbook( uid PRIMARY KEY ";
+
+                QStringList fieldList = OContactFields::untrfields( false );
+                for ( QStringList::Iterator it = ++fieldList.begin(); it != fieldList.end(); ++it ){
+                        qu += QString( ",\"%1\" VARCHAR(10)" ).arg( *it );
+                }
+                qu += " );";
+                
+                qu += "create table custom_data( uid INTEGER, id INTEGER, type VARCHAR, priority INTEGER, value VARCHAR, PRIMARY KEY /* identifier */ (uid, id) );";
+
+#else
+
                 qu += "create table addressbook( uid INTEGER, id INTEGER, type VARCHAR, priority INTEGER, value VARCHAR, PRIMARY KEY /* identifier */ (uid, id));";
                 qu += "create table custom_data( uid INTEGER, id INTEGER, type VARCHAR, priority INTEGER, value VARCHAR, PRIMARY KEY /* identifier */ (uid, id) );";
         //      qu += "create table dates( uid PRIMARY KEY, type, day, month, year, hour, minute, second );";
+
+#endif // __STORE_HORIZONTAL_
                 return qu;
         }
         
         ClearQuery::ClearQuery()
                 : OSQLQuery() {}
         ClearQuery::~ClearQuery() {}
         QString ClearQuery::query()const {
                 QString qu = "drop table addressbook;";
                 qu += "drop table custom_data;";
-                qu += "drop table dates;";
+        //      qu += "drop table dates;";
                 return qu;
         }
 
-// Distinct loading is not very fast. If I expect that every person has just
-// one (and always one) 'Last Name', I can request all uid's for existing lastnames, 
-// which is faster..
-// But this may not be true for all entries, like company contacts..
-// The current AddressBook application handles this problem, but other may not.. (eilers)
-#define __USE_SUPERFAST_LOADQUERY
 
         LoadQuery::LoadQuery() : OSQLQuery() {}
         LoadQuery::~LoadQuery() {}
         QString LoadQuery::query()const {
                 QString qu;
+#ifdef __STORE_HORIZONTAL_
+                qu += "select uid from addressbook";
+#else
 #ifndef __USE_SUPERFAST_LOADQUERY 
                 qu += "select distinct uid from addressbook";
 #else
                 qu += "select uid from addressbook where type = 'Last Name'";
-#endif
+#  endif // __USE_SUPERFAST_LOADQUERY 
+#endif // __STORE_HORIZONTAL_
                 
                 return qu;
         }
         
 
         InsertQuery::InsertQuery( const OContact& contact )
@@ -194,16 +228,68 @@ namespace {
 
         /*
          * converts from a OContact to a query
          */
         QString InsertQuery::query()const{
 
+#ifdef __STORE_HORIZONTAL_
+                QString qu;
+                qu  += "insert into addressbook VALUES( " + 
+                        QString::number( m_contact.uid() );
+
+                // Get all information out of the contact-class
+                // Remember: The category is stored in contactMap, too ! 
+                QMap<int, QString> contactMap = m_contact.toMap();
+                
+                QStringList fieldList = OContactFields::untrfields( false );
+                QMap<QString, int> translate = OContactFields::untrFieldsToId();
+                for ( QStringList::Iterator it = ++fieldList.begin(); it != fieldList.end(); ++it ){
+                        // Convert Column-String to Id and get value for this id..
+                        // Hmmm.. Maybe not very cute solution..
+                        int id = translate[*it];
+                        switch ( id ){
+                        case Qtopia::Birthday:{
+                                // These entries should stored in a special format
+                                // year-month-day
+                                QDate day = m_contact.birthday();
+                                if ( day.isValid() ){
+                                        qu += QString(",\"%1-%2-%3\"")
+                                                .arg( day.year() )
+                                                .arg( day.month() )
+                                                .arg( day.day() );
+                                } else {
+                                        qu += ",\"\"";
+                                }
+                        }
+                                break;
+                        case Qtopia::Anniversary:{
+                                // These entries should stored in a special format
+                                // year-month-day
+                                QDate day = m_contact.anniversary();
+                                if ( day.isValid() ){
+                                        qu += QString(",\"%1-%2-%3\"")
+                                                .arg( day.year() )
+                                                .arg( day.month() )
+                                                .arg( day.day() );
+                                } else {
+                                        qu += ",\"\"";
+                                }
+                        }
+                                break;
+
+                        default:
+                                qu += QString( ",\"%1\"" ).arg( contactMap[id] );
+                        }
+                }
+                qu += " );";
+
+                        
+#else
                 // Get all information out of the contact-class
                 // Remember: The category is stored in contactMap, too ! 
                 QMap<int, QString> contactMap = m_contact.toMap();
-                QMap<QString, QString> customMap = m_contact.toExtraMap();
                 
                 QMap<QString, QString> addressbook_db;
                 
                 // Get the translation from the ID to the String
                 QMap<int, QString> transMap = OContactFields::idToUntrFields();
                 
@@ -258,14 +344,19 @@ namespace {
                                 + "0"  // Priority for future enhancements
                                 + ",'" 
                                 + it.data()  //.latin1()
                                 + "');";
                 }
 
+        #endif          //__STORE_HORIZONTAL_
                 // Now add custom data..
+#ifdef __STORE_HORIZONTAL_
+                int id = 0;
+#endif
                 id = 0;
+                QMap<QString, QString> customMap = m_contact.toExtraMap();
                 for( QMap<QString, QString>::Iterator it = customMap.begin(); 
                      it != customMap.end(); ++it ){
                         qu  += "insert into custom_data VALUES(" 
                                 +  QString::number( m_contact.uid() )
                                 + ","
                                 +  QString::number( id++ ) 
@@ -274,27 +365,24 @@ namespace {
                                 + "',"
                                 + "0" // Priority for future enhancements
                                 + ",'" 
                                 + it.data() //.latin1()
                                 + "');";
                         }       
-                
                 // qu  += "commit;";
                 qWarning("add %s", qu.latin1() );
                 return qu;
         }
         
 
         RemoveQuery::RemoveQuery(int uid )
                 : OSQLQuery(), m_uid( uid ) {}
         RemoveQuery::~RemoveQuery() {}
         QString RemoveQuery::query()const {
                 QString qu = "DELETE from addressbook where uid = " 
                         + QString::number(m_uid) + ";";
-                qu += "DELETE from dates where uid = " 
-                        + QString::number(m_uid) + ";";
                 qu += "DELETE from custom_data where uid = " 
                         + QString::number(m_uid) + ";";
                 return qu;
         }
         
 
@@ -322,17 +410,27 @@ namespace {
                         qu += " UID = " + QString::number( m_uids[i] ) + " OR";
                 }
                 qu.remove( qu.length()-2, 2 ); // Hmmmm.. 
                 return qu;
         }
         */
+#ifdef __STORE_HORIZONTAL_
+        QString FindQuery::single()const{
+                QString qu = "select *";
+                qu += " from addressbook where uid = " + QString::number(m_uid);
+
+                // qWarning("find query: %s", qu.latin1() );
+                return qu;
+        }
+#else
         QString FindQuery::single()const{
                 QString qu = "select uid, type, value from addressbook where uid = ";
                 qu += QString::number(m_uid);
                 return qu;
         }
+#endif
 
 
         FindCustomQuery::FindCustomQuery(int uid)
                 : OSQLQuery(), m_uid( uid ) {
         }
         FindCustomQuery::FindCustomQuery(const QArray<int>& ints)
@@ -372,13 +470,13 @@ OContactAccessBackend_SQL::OContactAccessBackend_SQL ( const QString& /* appname
         OSQLManager man;
         m_driver = man.standard();
                 m_driver->setUrl( m_fileName );
 
         load();
 
-        qWarning("C'tor OContactAccessBackend_SQL ends: %d", t.elapsed() );
+        qWarning("C'tor OContactAccessBackend_SQL ends: %d ms", t.elapsed() );
 }
 
 
 bool OContactAccessBackend_SQL::load ()
 {
         if (!m_driver->open() )
@@ -475,53 +573,144 @@ OContact OContactAccessBackend_SQL::find ( int uid ) const
         QTime t;
         t.start();
 
         OContact retContact( requestNonCustom( uid ) );
         retContact.setExtraMap( requestCustom( uid ) );
 
-        qWarning("OContactAccessBackend_SQL::find() needed: %d", t.elapsed() );
+        qWarning("OContactAccessBackend_SQL::find() needed: %d ms", t.elapsed() );
         return retContact;
 }
 
 
 
 QArray<int> OContactAccessBackend_SQL::queryByExample ( const OContact &query, int settings, const QDateTime& d = QDateTime() )
 {
-        QArray<int> nix(0);
-        return nix;
+        QString qu = "SELECT uid FROM addressbook WHERE";
+
+        QMap<int, QString> queryFields = query.toMap();
+        QStringList fieldList = OContactFields::untrfields( false );
+        QMap<QString, int> translate = OContactFields::untrFieldsToId();
+
+        // Convert every filled field to a SQL-Query
+        bool isAnyFieldSelected = false;
+        for ( QStringList::Iterator it = ++fieldList.begin(); it != fieldList.end(); ++it ){
+                int id = translate[*it];
+                QString queryStr = queryFields[id];
+                if ( !queryStr.isEmpty() ){
+                        isAnyFieldSelected = true;
+                        switch( id ){
+                        default:
+                                // Switching between case sensitive and insensitive...
+                                // LIKE is not case sensitive, GLOB is case sensitive
+                                // Do exist a better solution to switch this ?
+                                if ( settings & OContactAccess::IgnoreCase )
+                                        qu += "(\"" + *it + "\"" + " LIKE " + "'" 
+                                                + queryStr.replace(QRegExp("\\*"),"%") + "'" + ") AND "; 
+                                else
+                                        qu += "(\"" + *it + "\"" + " GLOB " + "'" 
+                                                + queryStr + "'" + ") AND "; 
+                                        
+                        }
+                }
+        }
+        // Skip trailing "AND"
+        if ( isAnyFieldSelected )
+                qu = qu.left( qu.length() - 4 );
+
+        qWarning( "queryByExample query: %s", qu.latin1() );
+
+        // Execute query and return the received uid's
+        OSQLRawQuery raw( qu );
+        OSQLResult res = m_driver->query( &raw );
+        if ( res.state() != OSQLResult::Success ){
+                QArray<int> empty;
+                return empty;
+        }
+
+        QArray<int> list = extractUids( res );
+
+                return list;    
 }
 
 QArray<int> OContactAccessBackend_SQL::matchRegexp(  const QRegExp &r ) const
 {
         QArray<int> nix(0);
         return nix;
 }
 
 const uint OContactAccessBackend_SQL::querySettings()
 {
-        return 0;
+        return OContactAccess::IgnoreCase 
+                || OContactAccess::WildCards;
 }
 
 bool OContactAccessBackend_SQL::hasQuerySettings (uint querySettings) const
 {
+        /* OContactAccess::IgnoreCase, DateDiff, DateYear, DateMonth, DateDay
+         * may be added with any of the other settings. IgnoreCase should never used alone.
+         * Wildcards, RegExp, ExactMatch should never used at the same time...
+         */
+
+        // Step 1: Check whether the given settings are supported by this backend
+        if ( ( querySettings & ( 
+                                OContactAccess::IgnoreCase
+                                | OContactAccess::WildCards
+        //                      | OContactAccess::DateDiff
+        //                      | OContactAccess::DateYear
+        //                      | OContactAccess::DateMonth
+        //                      | OContactAccess::DateDay
+        //                      | OContactAccess::RegExp
+        //                      | OContactAccess::ExactMatch
+                               ) ) != querySettings )
         return false;
+
+        // Step 2: Check whether the given combinations are ok..
+
+        // IngoreCase alone is invalid
+        if ( querySettings == OContactAccess::IgnoreCase )
+                return false;
+
+        // WildCards, RegExp and ExactMatch should never used at the same time 
+        switch ( querySettings & ~( OContactAccess::IgnoreCase
+                                    | OContactAccess::DateDiff
+                                    | OContactAccess::DateYear
+                                    | OContactAccess::DateMonth
+                                    | OContactAccess::DateDay
+                                    )
+                 ){
+        case OContactAccess::RegExp:
+                return ( true );
+        case OContactAccess::WildCards:
+                return ( true );
+        case OContactAccess::ExactMatch:
+                return ( true );
+        case 0: // one of the upper removed bits were set..
+                return ( true );
+        default:
+                return ( false );
+        }
+
 }
 
 QArray<int> OContactAccessBackend_SQL::sorted( bool asc,  int , int ,  int )
 {
         QTime t;
         t.start();
 
-        // Not implemented..
+#ifdef __STORE_HORIZONTAL_
+        QString query = "SELECT uid FROM addressbook ";
+        query += "ORDER BY \"Last Name\" ";
+#else
         QString query = "SELECT uid FROM addressbook WHERE type = 'Last Name' ";
+        query += "ORDER BY upper( value )";
+#endif
 
-        query += "ORDER BY value ";
         if ( !asc )
                 query += "DESC";
 
-        qWarning("sorted query is: %s", query.latin1() ); 
+        // qWarning("sorted query is: %s", query.latin1() ); 
 
         OSQLRawQuery raw( query );
         OSQLResult res = m_driver->query( &raw );
         if ( res.state() != OSQLResult::Success ){
                 QArray<int> empty;
                 return empty;
@@ -549,13 +738,13 @@ void OContactAccessBackend_SQL::update()
                 return;
 
         m_uids = extractUids( res );
 
         m_changed = false;
 
-        qWarning("Update ends %d", t.elapsed() );
+        qWarning("Update ends %d ms", t.elapsed() );
 }
 
 QArray<int> OContactAccessBackend_SQL::extractUids( OSQLResult& res ) const
 {
         qWarning("extractUids");
         QTime t;
@@ -573,12 +762,78 @@ QArray<int> OContactAccessBackend_SQL::extractUids( OSQLResult& res ) const
         qWarning("extractUids ready: count2 = %d needs %d ms", i, t.elapsed() );
 
         return ints;
 
 }
 
+#ifdef __STORE_HORIZONTAL_
+QMap<int, QString>  OContactAccessBackend_SQL::requestNonCustom( int uid ) const
+{
+        QTime t;
+        t.start();
+
+        QMap<int, QString> nonCustomMap;
+        
+        int t2needed = 0;
+        int t3needed = 0;
+        QTime t2;
+        t2.start();
+        FindQuery query( uid );
+        OSQLResult res_noncustom = m_driver->query( &query );
+        t2needed = t2.elapsed();
+
+        OSQLResultItem resItem = res_noncustom.first();
+
+        QTime t3;
+        t3.start();
+        // Now loop through all columns
+        QStringList fieldList = OContactFields::untrfields( false );
+        QMap<QString, int> translate = OContactFields::untrFieldsToId();
+        for ( QStringList::Iterator it = ++fieldList.begin(); it != fieldList.end(); ++it ){
+                // Get data for the selected column and store it with the
+                // corresponding id into the map..
+
+                int id =  translate[*it];
+                QString value = resItem.data( (*it) );
+                
+                // qWarning("Reading %s... found: %s", (*it).latin1(), value.latin1() );
+
+                switch( id ){
+                case Qtopia::Birthday:
+                case Qtopia::Anniversary:{
+                        // Birthday and Anniversary are encoded special ( yyyy-mm-dd )
+                        QStringList list = QStringList::split( '-', value );
+                        QStringList::Iterator lit = list.begin();
+                        int year  = (*lit).toInt();
+                        int month = (*(++lit)).toInt();
+                        int day   = (*(++lit)).toInt();
+                        if ( ( day != 0 ) && ( month != 0 ) && ( year != 0 ) ){
+                             QDate date( year, month, day );
+                             nonCustomMap.insert( id, OConversion::dateToString( date ) );
+                        }
+                }
+                        break;
+                case Qtopia::AddressCategory:
+                        qWarning("Category is: %s", value.latin1() );
+                default:
+                        nonCustomMap.insert( id, value );
+                }
+        }
+
+        // First insert uid
+        nonCustomMap.insert( Qtopia::AddressUid, resItem.data( "uid" ) ); 
+        t3needed = t3.elapsed();
+
+        // qWarning("Adding UID: %s", resItem.data( "uid" ).latin1() );
+        qWarning("RequestNonCustom needed: insg.:%d ms, query: %d ms, mapping: %d ms", 
+                 t.elapsed(), t2needed, t3needed  );
+
+        return nonCustomMap;
+}
+#else
+
 QMap<int, QString>  OContactAccessBackend_SQL::requestNonCustom( int uid ) const
 {
         QTime t;
         t.start();
 
         QMap<int, QString> nonCustomMap;
@@ -630,16 +885,18 @@ QMap<int, QString>  OContactAccessBackend_SQL::requestNonCustom( int uid ) const
                 }
         }
         // Add UID to Map..
         nonCustomMap.insert( Qtopia::AddressUid, QString::number( uid ) );
         t3needed = t3.elapsed();
 
-        qWarning("RequestNonCustom needed: ins:%d, query: %d, mapping: %d", t.elapsed(), t2needed, t3needed  );
+        qWarning("RequestNonCustom needed: insg.:%d ms, query: %d ms, mapping: %d ms", t.elapsed(), t2needed, t3needed  );
         return nonCustomMap;
 }
 
+#endif // __STORE_HORIZONTAL_
+
 QMap<QString, QString>  OContactAccessBackend_SQL::requestCustom( int uid ) const
 {
         QTime t;
         t.start();
 
         QMap<QString, QString> customMap;
@@ -656,9 +913,9 @@ QMap<QString, QString>  OContactAccessBackend_SQL::requestCustom( int uid ) cons
         OSQLResultItem::ValueList list = res_custom.results();
         OSQLResultItem::ValueList::Iterator it = list.begin();
         for ( ; it != list.end(); ++it ) {
                 customMap.insert( (*it).data( "type" ), (*it).data( "value" ) );
         }
 
-        qWarning("RequestCustom needed: %d", t.elapsed() );
+        qWarning("RequestCustom needed: %d ms", t.elapsed() );
         return customMap;
 }
diff --git a/libopie/pim/ocontactfields.cpp b/libopie/pim/ocontactfields.cpp
index 831a596..7206f0d 100644
--- a/libopie/pim/ocontactfields.cpp
+++ b/libopie/pim/ocontactfields.cpp
@@ -170,12 +170,15 @@ QStringList OContactFields::trfields( bool sorted )
 */
 QStringList OContactFields::untrfields( bool sorted )
 {
     QStringList list;
     QMap<int, QString> mapIdToStr = idToUntrFields();
 
+    list.append( mapIdToStr[ Qtopia::AddressUid ] );
+    list.append( mapIdToStr[ Qtopia::AddressCategory ] );
+
     list.append( mapIdToStr[ Qtopia::Title ] );
     list.append( mapIdToStr[ Qtopia::FirstName ] );
     list.append( mapIdToStr[ Qtopia::MiddleName ] );
     list.append( mapIdToStr[ Qtopia::LastName ] );
     list.append( mapIdToStr[ Qtopia::Suffix ] );
     list.append( mapIdToStr[ Qtopia::FileAs ] );
@@ -208,12 +211,15 @@ QStringList OContactFields::untrfields( bool sorted )
     return list;
 }
 QMap<int, QString> OContactFields::idToTrFields()
 {
         QMap<int, QString> ret_map;
 
+        ret_map.insert( Qtopia::AddressUid, QObject::tr( "User Id" ) );
+        ret_map.insert( Qtopia::AddressCategory, QObject::tr( "Categories" ) );
+
         ret_map.insert( Qtopia::Title, QObject::tr( "Name Title") );
         ret_map.insert( Qtopia::FirstName, QObject::tr( "First Name" ) );
         ret_map.insert( Qtopia::MiddleName, QObject::tr( "Middle Name" ) );
         ret_map.insert( Qtopia::LastName, QObject::tr( "Last Name" ) );
         ret_map.insert( Qtopia::Suffix,  QObject::tr( "Suffix" ));
         ret_map.insert( Qtopia::FileAs, QObject::tr( "File As" ) );
@@ -271,12 +277,15 @@ QMap<int, QString> OContactFields::idToTrFields()
 }
 
 QMap<int, QString> OContactFields::idToUntrFields()
 {
         QMap<int, QString> ret_map;
 
+        ret_map.insert( Qtopia::AddressUid, "User Id" );
+        ret_map.insert( Qtopia::AddressCategory, "Categories" );
+
         ret_map.insert( Qtopia::Title, "Name Title" );
         ret_map.insert( Qtopia::FirstName, "First Name" );
         ret_map.insert( Qtopia::MiddleName, "Middle Name" );
         ret_map.insert( Qtopia::LastName, "Last Name" );
         ret_map.insert( Qtopia::Suffix, "Suffix" );
         ret_map.insert( Qtopia::FileAs, "File As" );
@@ -325,12 +334,13 @@ QMap<int, QString> OContactFields::idToUntrFields()
         ret_map.insert( Qtopia::Anniversary, "Anniversary" );
         ret_map.insert( Qtopia::Nickname, "Nickname" );
         ret_map.insert( Qtopia::Children, "Children" );
 
         // other
         ret_map.insert( Qtopia::Notes, "Notes" );
+        ret_map.insert( Qtopia::Groups, "Groups" );
 
 
         return ret_map;
 }
 
 QMap<QString, int> OContactFields::trFieldsToId()
diff --git a/libopie/pim/otodoaccesssql.cpp b/libopie/pim/otodoaccesssql.cpp
index 23e0c3e..d255c66 100644
--- a/libopie/pim/otodoaccesssql.cpp
+++ b/libopie/pim/otodoaccesssql.cpp
@@ -115,22 +115,25 @@ namespace {
 
 
     CreateQuery::CreateQuery() : OSQLQuery() {}
     CreateQuery::~CreateQuery() {}
     QString CreateQuery::query()const {
         QString qu;
-        qu += "create table todolist( uid, categories, completed, progress, ";
-        qu += "summary, DueDate, priority, description )";
+        qu += "create table todolist( uid PRIMARY KEY, categories, completed, ";
+        qu += "description, summary, priority, DueDate, progress ,  state, ";
+        qu += "Recurrence, notifiers, maintainer, startdate, completeddate)";
         return qu;
     }
 
     LoadQuery::LoadQuery() : OSQLQuery() {}
     LoadQuery::~LoadQuery() {}
     QString LoadQuery::query()const {
         QString qu;
-        qu += "select distinct uid from todolist";
+        // We do not need "distinct" here. The primary key is always unique..
+        //qu += "select distinct uid from todolist";
+        qu += "select uid from todolist";
 
         return qu;
     }
 
     InsertQuery::InsertQuery( const OTodo& todo )
         : OSQLQuery(), m_todo( todo ) {
@@ -148,17 +151,51 @@ namespace {
         if (m_todo.hasDueDate() ) {
             QDate date = m_todo.dueDate();
             year = date.year();
             month = date.month();
             day = date.day();
         }
+        int sYear = 0, sMonth = 0, sDay = 0;
+        if( m_todo.hasStartDate() ){
+                QDate sDate = m_todo.startDate();
+                sYear = sDate.year();
+                sMonth= sDate.month();
+                sDay  = sDate.day();
+        } 
+
+        int eYear = 0, eMonth = 0, eDay = 0;
+        if( m_todo.hasCompletedDate() ){
+                QDate eDate = m_todo.completedDate();
+                eYear = eDate.year();
+                eMonth= eDate.month();
+                eDay  = eDate.day();
+        } 
         QString qu;
-        qu  = "insert into todolist VALUES(" +  QString::number( m_todo.uid() ) + ",'" + m_todo.idsToString( m_todo.categories() ) + "',";
-        qu += QString::number( m_todo.isCompleted() ) + "," + QString::number( m_todo.progress() ) + ",";
-        qu += "'"+m_todo.summary()+"','"+QString::number(year)+"-"+QString::number(month)+"-"+QString::number(day)+"',";
-        qu += QString::number(m_todo.priority() ) +",'" + m_todo.description() + "')";
+        qu  = "insert into todolist VALUES(" 
+                +  QString::number( m_todo.uid() ) + "," 
+                + "'" + m_todo.idsToString( m_todo.categories() ) + "'" + ","
+                +       QString::number( m_todo.isCompleted() )         + ","  
+                + "'" + m_todo.description()                      + "'" + ","
+                + "'" + m_todo.summary()                          + "'" + "," 
+                +       QString::number(m_todo.priority() )             + ","
+                + "'" + QString::number(year) + "-" 
+                +       QString::number(month)
+                +       "-" + QString::number( day )              + "'" + ","
+                +       QString::number( m_todo.progress() )            + ","
+                + "''"                                                  + "," // state (conversion needed)
+        //      +       QString::number( m_todo.state() )               + ","
+                + "''"                                                  + "," // Recurrence (conversion needed)
+                + "''"                                                  + "," // Notifiers (conversion needed)
+                + "''"                                                  + "," // Maintainers (conversion needed)
+                + "'" + QString::number(sYear) + "-" 
+                      + QString::number(sMonth)
+                +       "-" + QString::number(sDay)               + "'" + ","
+                + "'" + QString::number(eYear) + "-"
+                +       QString::number(eMonth)
+                +       "-"+QString::number(eDay)                 + "'"
+                + ")";
 
         qWarning("add %s", qu.latin1() );
         return qu;
     }
 
     RemoveQuery::RemoveQuery(int uid )
@@ -189,19 +226,17 @@ namespace {
         if (m_uids.count() == 0 )
             return single();
         else
             return multi();
     }
     QString FindQuery::single()const{
-        QString qu = "select uid, categories, completed, progress, summary, ";
-        qu += "DueDate, priority, description from todolist where uid = " + QString::number(m_uid);
+        QString qu = "select * from todolist where uid = " + QString::number(m_uid);
         return qu;
     }
     QString FindQuery::multi()const {
-        QString qu = "select uid, categories, completed, progress, summary, ";
-        qu += "DueDate, priority, description from todolist where ";
+        QString qu = "select * from todolist where ";
         for (uint i = 0; i < m_uids.count(); i++ ) {
             qu += " UID = " + QString::number( m_uids[i] ) + " OR";
         }
         qu.remove( qu.length()-2, 2 );
         return qu;
     }
@@ -285,13 +320,13 @@ OTodo OTodoAccessBackendSQL::find(int uid ) const{
     FindQuery query( uid );
     return todo( m_driver->query(&query) );
 
 }
 OTodo OTodoAccessBackendSQL::find( int uid, const QArray<int>& ints,
                                    uint cur, Frontend::CacheDirection dir ) const{
-    int CACHE = readAhead();
+    uint CACHE = readAhead();
     qWarning("searching for %d", uid );
     QArray<int> search( CACHE );
     uint size =0;
     OTodo to;
 
     // we try to cache CACHE items
@@ -469,20 +504,36 @@ OTodo OTodoAccessBackendSQL::todo( const OSQLResult& res) const{
         cache( todo( (*it) ) );
     }
     return to;
 }
 OTodo OTodoAccessBackendSQL::todo( OSQLResultItem& item )const {
     qWarning("todo");
-    bool has = false; QDate da = QDate::currentDate();
-    has = date( da, item.data("DueDate") );
+    bool hasDueDate = false; QDate dueDate = QDate::currentDate();
+    hasDueDate = date( dueDate, item.data("DueDate") );
     QStringList cats = QStringList::split(";", item.data("categories") );
 
     OTodo to( (bool)item.data("completed").toInt(), item.data("priority").toInt(),
               cats, item.data("summary"), item.data("description"),
-              item.data("progress").toUShort(), has, da,
+              item.data("progress").toUShort(), hasDueDate, dueDate,
               item.data("uid").toInt() );
+
+    bool isOk;
+    int prioInt = QString( item.data("priority") ).toInt( &isOk );
+    if ( isOk )
+            to.setPriority( prioInt );
+
+    bool hasStartDate = false; QDate startDate = QDate::currentDate();
+    hasStartDate = date( startDate, item.data("startdate") );
+    bool hasCompletedDate = false; QDate completedDate = QDate::currentDate();
+    hasCompletedDate = date( completedDate, item.data("completeddate") );
+
+    if ( hasStartDate )
+            to.setStartDate( startDate );
+    if ( hasCompletedDate )
+            to.setCompletedDate( completedDate );
+
     return to;
 }
 OTodo OTodoAccessBackendSQL::todo( int uid )const {
     FindQuery find( uid );
     return todo( m_driver->query(&find) );
 }
@@ -567,13 +618,20 @@ QArray<int> OTodoAccessBackendSQL::matchRegexp(  const QRegExp &r ) const
 #endif
         QArray<int> empty;
         return empty;
 }
 QBitArray OTodoAccessBackendSQL::supports()const {
 
-        static QBitArray ar = sup();
+        QBitArray ar( OTodo::CompletedDate + 1 );
+        ar.fill( true );
+        ar[OTodo::CrossReference] = false;
+        ar[OTodo::State ] = false;
+        ar[OTodo::Reminders] = false;
+        ar[OTodo::Notifiers] = false;
+        ar[OTodo::Maintainer] = false;
+
         return ar;
 }
 
 QBitArray OTodoAccessBackendSQL::sup() {
 
         QBitArray ar( OTodo::CompletedDate + 1 );