Finishing implementation of sql-backend for datebook. But I have to

port the PIM datebook application to use it, before I could debug the
whole stuff.
Thus, PIM-Database backend is finished, but highly experimental. And some
parts are still generic. For instance, the "queryByExample()" methods are
not (or not fully) implemented. Todo: custom-entries not stored.
The big show stopper: matchRegExp() (needed by OpieSearch) needs regular
expression search in the database, which is not supported by sqlite !
Therefore we need either an extended sqlite or a workaround which would
be very slow and memory consuming..

1 files changed, 1 insertions, 1 deletions

diff --git a/libopie2/opiepim/backend/otodoaccesssql.cpp b/libopie2/opiepim/backend/otodoaccesssql.cpp
index 75a0860..3764c7e 100644
--- a/libopie2/opiepim/backend/otodoaccesssql.cpp
+++ b/libopie2/opiepim/backend/otodoaccesssql.cpp
@@ -1,693 +1,693 @@
 
 #include <qdatetime.h>
 
 #include <qpe/global.h>
 
 #include <opie2/osqldriver.h>
 #include <opie2/osqlresult.h>
 #include <opie2/osqlmanager.h>
 #include <opie2/osqlquery.h>
 
 #include "otodoaccesssql.h"
 #include "opimstate.h"
 #include "opimnotifymanager.h"
 #include "orecur.h"
 
 /*
  * first some query
  * CREATE query
  * LOAD query
  * INSERT
  * REMOVE
  * CLEAR
  */
 namespace {
     /**
      * CreateQuery for the Todolist Table
      */
     class CreateQuery : public OSQLQuery {
     public:
         CreateQuery();
         ~CreateQuery();
         QString query()const;
     };
 
     /**
      * LoadQuery
      * this one queries for all uids
      */
     class LoadQuery : public OSQLQuery {
     public:
         LoadQuery();
         ~LoadQuery();
         QString query()const;
     };
 
     /**
      * inserts/adds a OTodo to the table
      */
     class InsertQuery : public OSQLQuery {
     public:
         InsertQuery(const OTodo& );
         ~InsertQuery();
         QString query()const;
     private:
         OTodo m_todo;
     };
 
     /**
      * removes one from the table
      */
     class RemoveQuery : public OSQLQuery {
     public:
         RemoveQuery(int uid );
         ~RemoveQuery();
         QString query()const;
     private:
         int m_uid;
     };
 
     /**
      * Clears (delete) a Table
      */
     class ClearQuery : public OSQLQuery {
     public:
         ClearQuery();
         ~ClearQuery();
         QString query()const;
 
     };
 
     /**
      * a find query
      */
     class FindQuery : public OSQLQuery {
     public:
         FindQuery(int uid);
         FindQuery(const QArray<int>& );
         ~FindQuery();
         QString query()const;
     private:
         QString single()const;
         QString multi()const;
         QArray<int> m_uids;
         int m_uid;
     };
 
     /**
      * overdue query
      */
     class OverDueQuery : public OSQLQuery {
     public:
         OverDueQuery();
         ~OverDueQuery();
         QString query()const;
     };
     class EffQuery : public OSQLQuery {
     public:
         EffQuery( const QDate&, const QDate&, bool inc );
         ~EffQuery();
         QString query()const;
     private:
         QString with()const;
         QString out()const;
         QDate m_start;
         QDate m_end;
         bool m_inc :1;
     };
 
 
     CreateQuery::CreateQuery() : OSQLQuery() {}
     CreateQuery::~CreateQuery() {}
     QString CreateQuery::query()const {
         QString qu;
         qu += "create table todolist( uid PRIMARY KEY, categories, completed, ";
         qu += "description, summary, priority, DueDate, progress ,  state, ";
 	// This is the recurrance-stuff .. Exceptions are currently not supported (see ORecur.cpp) ! (eilers)
 	qu += "RType, RWeekdays, RPosition, RFreq, RHasEndDate, EndDate, Created, Exceptions, "; 
 	qu += "reminders, alarms, maintainer, startdate, completeddate);";
 	qu += "create table custom_data( uid INTEGER, id INTEGER, type VARCHAR(10), value VARCHAR(10), PRIMARY KEY /* identifier */ (uid, id) );";
         return qu;
     }
 
     LoadQuery::LoadQuery() : OSQLQuery() {}
     LoadQuery::~LoadQuery() {}
     QString LoadQuery::query()const {
         QString qu;
 	// 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 ) {
     }
     InsertQuery::~InsertQuery() {
     }
     /*
      * converts from a OTodo to a query
      * we leave out X-Ref + Alarms
      */
     QString InsertQuery::query()const{
 
         int year, month, day;
         year = month = day = 0;
         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;
 	QMap<int, QString> recMap = m_todo.recurrence().toMap();
         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() )            + ","
  		+       QString::number( m_todo.state().state() )       + ","
 		+ "'" + recMap[ ORecur::RType ]                   + "'" + ","
 		+ "'" + recMap[ ORecur::RWeekdays ]               + "'" + ","
 		+ "'" + recMap[ ORecur::RPosition ]               + "'" + ","
 		+ "'" + recMap[ ORecur::RFreq ]                   + "'" + ","
 		+ "'" + recMap[ ORecur::RHasEndDate ]             + "'" + ","
 		+ "'" + recMap[ ORecur::EndDate ]                 + "'" + ","
 		+ "'" + recMap[ ORecur::Created ]                 + "'" + ","
 		+ "'" + recMap[ ORecur::Exceptions ]              + "'" + ",";
 	
 	if ( m_todo.hasNotifiers() ) {
 		OPimNotifyManager manager = m_todo.notifiers();
 		qu += "'" + manager.remindersToString()           + "'" + ","		
 			+ "'" + manager.alarmsToString()          + "'" + ",";
 	}
 	else{
 		qu += QString( "''" )                                   + ","
 			+ "''"                                          + ",";
 	}
 
 	qu +=   QString( "''" )                             + QString( "," ) // Maintainers (cur. not supported !)
 		+ "'" + 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 )
         : OSQLQuery(), m_uid( uid ) {}
     RemoveQuery::~RemoveQuery() {}
     QString RemoveQuery::query()const {
         QString qu = "DELETE from todolist where uid = " + QString::number(m_uid);
         return qu;
     }
 
 
     ClearQuery::ClearQuery()
         : OSQLQuery() {}
     ClearQuery::~ClearQuery() {}
     QString ClearQuery::query()const {
         QString qu = "drop table todolist";
         return qu;
     }
     FindQuery::FindQuery(int uid)
         : OSQLQuery(), m_uid(uid ) {
     }
     FindQuery::FindQuery(const QArray<int>& ints)
         : OSQLQuery(), m_uids(ints){
     }
     FindQuery::~FindQuery() {
     }
     QString FindQuery::query()const{
         if (m_uids.count() == 0 )
             return single();
         else
             return multi();
     }
     QString FindQuery::single()const{
         QString qu = "select * from todolist where uid = " + QString::number(m_uid);
         return qu;
     }
     QString FindQuery::multi()const {
         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;
     }
 
     OverDueQuery::OverDueQuery(): OSQLQuery() {}
     OverDueQuery::~OverDueQuery() {}
     QString OverDueQuery::query()const {
         QDate date = QDate::currentDate();
         QString str;
         str = QString("select uid from todolist where DueDate ='%1-%2-%3'").arg(date.year() ).arg(date.month() ).arg(date.day() );
 
         return str;
     }
 
 
     EffQuery::EffQuery( const QDate& start, const QDate& end, bool inc )
         : OSQLQuery(), m_start( start ), m_end( end ),m_inc(inc) {}
     EffQuery::~EffQuery() {}
     QString EffQuery::query()const {
         return m_inc ? with() : out();
     }
     QString EffQuery::with()const {
         QString str;
         str = QString("select uid from todolist where ( DueDate >= '%1-%2-%3' AND DueDate <= '%4-%5-%6' ) OR DueDate = '0-0-0' ")
             .arg( m_start.year() ).arg( m_start.month() ).arg( m_start.day() )
             .arg( m_end  .year() ).arg( m_end  .month() ).arg( m_end  .day() );
         return str;
     }
     QString EffQuery::out()const {
         QString str;
         str = QString("select uid from todolist where DueDate >= '%1-%2-%3' AND  DueDate <= '%4-%5-%6'")
             .arg(m_start.year() ).arg(m_start.month() ).arg( m_start.day() )
             .arg(m_end.  year() ).arg(m_end.  month() ).arg(m_end.day() );
 
         return str;
     }
 };
 
 OTodoAccessBackendSQL::OTodoAccessBackendSQL( const QString& file )
     : OTodoAccessBackend(), m_dict(15), m_driver(NULL), m_dirty(true)
 {
     QString fi = file;
     if ( fi.isEmpty() )
         fi = Global::applicationFileName( "todolist", "todolist.db" );
     OSQLManager man;
     m_driver = man.standard();
     m_driver->setUrl(fi);
     // fillDict();
 }
 
 OTodoAccessBackendSQL::~OTodoAccessBackendSQL(){
 	if( m_driver )
 		delete m_driver;
 }
 
 bool OTodoAccessBackendSQL::load(){
     if (!m_driver->open() )
         return false;
 
     CreateQuery creat;
     OSQLResult res = m_driver->query(&creat );
 
     m_dirty = true;
     return true;
 }
 bool OTodoAccessBackendSQL::reload(){
     return load();
 }
 
 bool OTodoAccessBackendSQL::save(){
-    return m_driver->close();
+    return m_driver->close();  // Shouldn't m_driver->sync be better than close ? (eilers)
 }
 QArray<int> OTodoAccessBackendSQL::allRecords()const {
     if (m_dirty )
         update();
 
     return m_uids;
 }
 QArray<int> OTodoAccessBackendSQL::queryByExample( const OTodo& , int, const QDateTime& ){
     QArray<int> ints(0);
     return ints;
 }
 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{
     uint CACHE = readAhead();
     qWarning("searching for %d", uid );
     QArray<int> search( CACHE );
     uint size =0;
     OTodo to;
 
     // we try to cache CACHE items
     switch( dir ) {
         /* forward */
     case 0: // FIXME: Not a good style to use magic numbers here (eilers)
         for (uint i = cur; i < ints.count() && size < CACHE; i++ ) {
             qWarning("size %d %d", size,  ints[i] );
             search[size] = ints[i];
             size++;
         }
         break;
         /* reverse */
     case 1: // FIXME: Not a good style to use magic numbers here (eilers)
         for (uint i = cur; i != 0 && size <  CACHE; i-- ) {
             search[size] = ints[i];
             size++;
         }
         break;
     }
     search.resize( size );
     FindQuery query( search );
     OSQLResult res = m_driver->query( &query  );
     if ( res.state() != OSQLResult::Success )
         return to;
 
     return todo( res );
 }
 void OTodoAccessBackendSQL::clear() {
     ClearQuery cle;
     OSQLResult res = m_driver->query( &cle );
     CreateQuery qu;
     res = m_driver->query(&qu);
 }
 bool OTodoAccessBackendSQL::add( const OTodo& t) {
     InsertQuery ins( t );
     OSQLResult res = m_driver->query( &ins );
 
     if ( res.state() == OSQLResult::Failure )
         return false;
     int c = m_uids.count();
     m_uids.resize( c+1 );
     m_uids[c] = t.uid();
 
     return true;
 }
 bool OTodoAccessBackendSQL::remove( int uid ) {
     RemoveQuery rem( uid );
     OSQLResult res = m_driver->query(&rem );
 
     if ( res.state() == OSQLResult::Failure )
         return false;
 
     m_dirty = true;
     return true;
 }
 /*
  * FIXME better set query
  * but we need the cache for that
  * now we remove
  */
 bool OTodoAccessBackendSQL::replace( const OTodo& t) {
     remove( t.uid() );
     bool b= add(t);
     m_dirty = false; // we changed some stuff but the UID stayed the same
     return b;
 }
 QArray<int> OTodoAccessBackendSQL::overDue() {
     OverDueQuery qu;
     return uids( m_driver->query(&qu ) );
 }
 QArray<int> OTodoAccessBackendSQL::effectiveToDos( const QDate& s,
                                                    const QDate& t,
                                                    bool u) {
     EffQuery ef(s, t, u );
     return uids (m_driver->query(&ef) );
 }
 /*
  *
  */
 QArray<int> OTodoAccessBackendSQL::sorted( bool asc, int sortOrder,
                                            int sortFilter, int cat ) {
     qWarning("sorted %d, %d", asc, sortOrder );
     QString query;
     query = "select uid from todolist WHERE ";
 
     /*
      * Sort Filter stuff
      * not that straight forward
      * FIXME: Replace magic numbers
      *
      */
     /* Category */
     if ( sortFilter & 1 ) {
         QString str;
         if (cat != 0 ) str = QString::number( cat );
         query += " categories like '%" +str+"%' AND";
     }
     /* Show only overdue */
     if ( sortFilter & 2 ) {
         QDate date = QDate::currentDate();
         QString due;
         QString base;
         base = QString("DueDate <= '%1-%2-%3' AND completed = 0").arg( date.year() ).arg( date.month() ).arg( date.day() );
         query += " " + base + " AND";
     }
     /* not show completed */
     if ( sortFilter & 4 ) {
         query += " completed = 0 AND";
     }else{
        query += " ( completed = 1 OR  completed = 0) AND";
     }
     /* srtip the end */
     query = query.remove( query.length()-3, 3 );
 
 
     /*
      * sort order stuff
      * quite straight forward
      */
     query += "ORDER BY ";
     switch( sortOrder ) {
         /* completed */
     case 0:
         query += "completed";
         break;
     case 1:
         query += "priority";
         break;
     case 2:
         query += "summary";
         break;
     case 3:
         query += "DueDate";
         break;
     }
 
     if ( !asc ) {
         qWarning("not ascending!");
         query += " DESC";
     }
 
     qWarning( query );
     OSQLRawQuery raw(query );
     return uids( m_driver->query(&raw) );
 }
 bool OTodoAccessBackendSQL::date( QDate& da, const QString& str ) const{
     if ( str == "0-0-0" )
         return false;
     else{
         int day, year, month;
         QStringList list = QStringList::split("-", str );
         year = list[0].toInt();
         month = list[1].toInt();
         day = list[2].toInt();
         da.setYMD( year, month, day );
         return true;
     }
 }
 OTodo OTodoAccessBackendSQL::todo( const OSQLResult& res) const{
     if ( res.state() == OSQLResult::Failure ) {
         OTodo to;
         return to;
     }
 
     OSQLResultItem::ValueList list = res.results();
     OSQLResultItem::ValueList::Iterator it = list.begin();
     qWarning("todo1");
     OTodo to = todo( (*it) );
     cache( to );
     ++it;
 
     for ( ; it != list.end(); ++it ) {
         qWarning("caching");
         cache( todo( (*it) ) );
     }
     return to;
 }
 OTodo OTodoAccessBackendSQL::todo( OSQLResultItem& item )const {
     qWarning("todo");
     bool hasDueDate = false; QDate dueDate = QDate::currentDate();
     hasDueDate = date( dueDate, item.data("DueDate") );
     QStringList cats = QStringList::split(";", item.data("categories") );
 
     qWarning("Item is completed: %d", item.data("completed").toInt() );
 
     OTodo to( (bool)item.data("completed").toInt(), item.data("priority").toInt(),
               cats, item.data("summary"), item.data("description"),
               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 );
     
     OPimNotifyManager& manager = to.notifiers();
     manager.alarmsFromString( item.data("alarms") );
     manager.remindersFromString( item.data("reminders") );
 
     OPimState pimState;
     pimState.setState( QString( item.data("state") ).toInt() );
     to.setState( pimState );
 
     QMap<int, QString> recMap;
     recMap.insert( ORecur::RType      , item.data("RType") );
     recMap.insert( ORecur::RWeekdays  , item.data("RWeekdays") );
     recMap.insert( ORecur::RPosition  , item.data("RPosition") );
     recMap.insert( ORecur::RFreq      , item.data("RFreq") );
     recMap.insert( ORecur::RHasEndDate, item.data("RHasEndDate") );
     recMap.insert( ORecur::EndDate    , item.data("EndDate") );
     recMap.insert( ORecur::Created    , item.data("Created") );
     recMap.insert( ORecur::Exceptions , item.data("Exceptions") );
     
     ORecur recur;
     recur.fromMap( recMap );
     to.setRecurrence( recur );
 
     return to;
 }
 OTodo OTodoAccessBackendSQL::todo( int uid )const {
     FindQuery find( uid );
     return todo( m_driver->query(&find) );
 }
 /*
  * update the dict
  */
 void OTodoAccessBackendSQL::fillDict() {
     /* initialize dict */
     /*
      * UPDATE dict if you change anything!!!
      * FIXME: Isn't this dict obsolete ? (eilers)
      */
     m_dict.setAutoDelete( TRUE );
     m_dict.insert("Categories" ,     new int(OTodo::Category)         );
     m_dict.insert("Uid" ,            new int(OTodo::Uid)              );
     m_dict.insert("HasDate" ,        new int(OTodo::HasDate)          );
     m_dict.insert("Completed" ,      new int(OTodo::Completed)        );
     m_dict.insert("Description" ,    new int(OTodo::Description)      );
     m_dict.insert("Summary" ,        new int(OTodo::Summary)          );
     m_dict.insert("Priority" ,       new int(OTodo::Priority)         );
     m_dict.insert("DateDay" ,        new int(OTodo::DateDay)          );
     m_dict.insert("DateMonth" ,      new int(OTodo::DateMonth)        );
     m_dict.insert("DateYear" ,       new int(OTodo::DateYear)         );
     m_dict.insert("Progress" ,       new int(OTodo::Progress)         );
     m_dict.insert("Completed",       new int(OTodo::Completed)        ); // Why twice ? (eilers)
     m_dict.insert("CrossReference",  new int(OTodo::CrossReference)   );
 //    m_dict.insert("HasAlarmDateTime",new int(OTodo::HasAlarmDateTime) ); // old stuff (eilers)
 //    m_dict.insert("AlarmDateTime",   new int(OTodo::AlarmDateTime)    ); // old stuff (eilers)
 }
 /*
  * need to be const so let's fool the
  * compiler :(
  */
 void OTodoAccessBackendSQL::update()const {
     ((OTodoAccessBackendSQL*)this)->m_dirty = false;
     LoadQuery lo;
     OSQLResult res = m_driver->query(&lo);
     if ( res.state() != OSQLResult::Success )
         return;
 
     ((OTodoAccessBackendSQL*)this)->m_uids = uids( res );
 }
 QArray<int> OTodoAccessBackendSQL::uids( const OSQLResult& res) const{
 
     OSQLResultItem::ValueList list = res.results();
     OSQLResultItem::ValueList::Iterator it;
     QArray<int> ints(list.count() );
     qWarning(" count = %d", list.count() );
 
     int i = 0;
     for (it = list.begin(); it != list.end(); ++it ) {
         ints[i] =  (*it).data("uid").toInt();
         i++;
     }
     return ints;
 }
 
 QArray<int> OTodoAccessBackendSQL::matchRegexp(  const QRegExp &r ) const
 {
 
 #warning OTodoAccessBackendSQL::matchRegexp() not implemented !!
 
 #if 0
 
 	Copied from xml-backend by not adapted to sql (eilers)
 
 	QArray<int> m_currentQuery( m_events.count() );
 	uint arraycounter = 0;
 
 
 
         QMap<int, OTodo>::ConstIterator it;
         for (it = m_events.begin(); it != m_events.end(); ++it ) {
 		if ( it.data().match( r ) )
 			m_currentQuery[arraycounter++] = it.data().uid();
 
 	}
 	// Shrink to fit..
 	m_currentQuery.resize(arraycounter);
 
 	return m_currentQuery;
 #endif
 	QArray<int> empty;
 	return empty;
 }
 QBitArray OTodoAccessBackendSQL::supports()const {
 
 	return sup();
 }
 
 QBitArray OTodoAccessBackendSQL::sup() const{
 
 	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;
 }
 
 void OTodoAccessBackendSQL::removeAllCompleted(){
 #warning OTodoAccessBackendSQL::removeAllCompleted() not implemented !!
 
 }