Fixing last issues on QueryByExample on SQL databases. All tests passed successfully

2 files changed, 33 insertions, 27 deletions

diff --git a/libopie2/opiepim/ChangeLog b/libopie2/opiepim/ChangeLog
index acb6cb1..ee063aa 100644
--- a/libopie2/opiepim/ChangeLog
+++ b/libopie2/opiepim/ChangeLog
@@ -1,2 +1,4 @@
+2005-03-23 Stefan Eilers <stefan@eilers-online.net>
+	* #1608 Finishing work on SQL backend. Datediff and other queries for QueryByExample now working as exprected. All tests passed successfully
 2005-03-20 Stefan Eilers <stefan@eilers-online.net>
 	* #1608 Quickfix for problem with DateDiff on SQL backend. I have to rethink this solution, but due to the short time, this should work.  
diff --git a/libopie2/opiepim/backend/ocontactaccessbackend_sql.cpp b/libopie2/opiepim/backend/ocontactaccessbackend_sql.cpp
index 50421e2..175d62a 100644
--- a/libopie2/opiepim/backend/ocontactaccessbackend_sql.cpp
+++ b/libopie2/opiepim/backend/ocontactaccessbackend_sql.cpp
@@ -534,20 +534,20 @@ UIDArray OPimContactAccessBackend_SQL::queryByExample ( const UIDArray& uidlist,
 							   const QDateTime& qd ) const
 {
-    QString qu = "SELECT uid FROM addressbook WHERE";
+    QString searchQuery = "";
+    QString datediff_query = "";
+    QString uid_query = "";
 
     // Just add uid's selection if we really try to search in a subset of all uids! Otherwise this would
     // just take time and memory!
     if ( uidlist.count() != m_uids.count() ) {
-	    qu += " (";
+	    uid_query += " (";
 
 	    for ( uint i = 0; i < uidlist.count(); i++ ) {
-		    qu += " uid = " + QString::number( uidlist[i] ) + " OR";
+		    uid_query += " uid = " + QString::number( uidlist[i] ) + " OR";
 	    }
-	    qu.remove( qu.length()-2, 2 ); // Hmmmm..
-	    qu += " ) AND ";
+	    uid_query.remove( uid_query.length()-2, 2 ); // Hmmmm..
+	    uid_query += " ) AND ";
     }
 
-    QString searchQuery = "";
-    QString temp_searchQuery = "";
 
     QDate startDate;
@@ -593,8 +593,8 @@ UIDArray OPimContactAccessBackend_SQL::queryByExample ( const UIDArray& uidlist,
 		    // This table is just visible for this process and will be removed
 		    // automatically after using.
-		    temp_searchQuery = "CREATE TEMP TABLE bs ( uid, \"Birthday\", \"Anniversary\" );";
-		    temp_searchQuery += "INSERT INTO bs SELECT uid,substr(\"Birthday\", 6, 10),substr(\"Anniversary\", 6, 10) FROM addressbook WHERE ( \"Birthday\" != '' OR \"Anniversary\" != '' );";
-
-                    temp_searchQuery += QString( "SELECT uid FROM bs WHERE (\"%1\" <= '%2-%3\' AND \"%4\" >= '%5-%6')" )
+		    datediff_query = "CREATE TEMP TABLE bs ( uid, \"Birthday\", \"Anniversary\" );";
+		    datediff_query += "INSERT INTO bs SELECT uid,substr(\"Birthday\", 6, 10),substr(\"Anniversary\", 6, 10) FROM addressbook WHERE ( \"Birthday\" != '' OR \"Anniversary\" != '' );";
+		    datediff_query += QString( "SELECT uid FROM bs WHERE " ) + uid_query;
+                    datediff_query += QString( " (\"%1\" <= '%2-%3\' AND \"%4\" >= '%5-%6')" )
                         .arg( *it )
 			    //.arg( QString::number( endDate->year() ).rightJustify( 4, '0' ) )
@@ -608,7 +608,4 @@ UIDArray OPimContactAccessBackend_SQL::queryByExample ( const UIDArray& uidlist,
 
                 if ( settings & OPimContactAccess::DateYear ){
-                    // if ( settings & OPimContactAccess::DateDiff )
-		    //     searchQuery += " AND";
-
                     searchQuery += QString( " (\"%1\" LIKE '%2-%')" )
                         .arg( *it )
@@ -617,6 +614,5 @@ UIDArray OPimContactAccessBackend_SQL::queryByExample ( const UIDArray& uidlist,
 
                 if ( settings & OPimContactAccess::DateMonth ){
-                    if ( ( settings & OPimContactAccess::DateDiff )
-                         || ( settings & OPimContactAccess::DateYear ) )
+                    if ( settings & OPimContactAccess::DateYear )
                         searchQuery += " AND";
 
@@ -627,6 +623,5 @@ UIDArray OPimContactAccessBackend_SQL::queryByExample ( const UIDArray& uidlist,
 
                 if ( settings & OPimContactAccess::DateDay ){
-                    if ( ( settings & OPimContactAccess::DateDiff )
-                         || ( settings & OPimContactAccess::DateYear )
+                    if ( ( settings & OPimContactAccess::DateYear )
                          || ( settings & OPimContactAccess::DateMonth ) )
                         searchQuery += " AND";
@@ -653,16 +648,25 @@ UIDArray OPimContactAccessBackend_SQL::queryByExample ( const UIDArray& uidlist,
 
         delete endDate;
+
+	// The following if line is a replacement for 
+	// if ( searchQuery.endsWith( "AND" ) )
+	if ( searchQuery.findRev( "AND" ) == ( searchQuery.length() - 3 ) ){
+		odebug << "remove AND" << oendl;
+		searchQuery.remove( searchQuery.length()-3, 3 ); // Hmmmm..
+	}
+
     }
 
-    // The following is very ugly! (eilers)
-    if ( !temp_searchQuery.isEmpty() && !searchQuery.isEmpty() ){
+    // Now compose the complete query
+    QString qu = "SELECT uid FROM addressbook WHERE " + uid_query; 
+
+    if ( !datediff_query.isEmpty() && !searchQuery.isEmpty() ){
 	    // If we use DateDiff, we have to intersect two queries.
-	    qu = temp_searchQuery + QString( " INTERSECT " ) + qu + searchQuery;
-    } else if ( temp_searchQuery.isEmpty() && !searchQuery.isEmpty() ){
+	    qu = datediff_query + QString( " INTERSECT " ) + qu + searchQuery;
+    } else if ( datediff_query.isEmpty() && !searchQuery.isEmpty() ){
 	    qu += searchQuery;
-    } else if ( !temp_searchQuery.isEmpty() && searchQuery.isEmpty() ){
-	    // This will cause wrong results!! Uid filter is not used here!
-	    qu = temp_searchQuery;
-    } else if ( temp_searchQuery.isEmpty() && searchQuery.isEmpty() ){
+    } else if ( !datediff_query.isEmpty() && searchQuery.isEmpty() ){
+	    qu = datediff_query;
+    } else if ( datediff_query.isEmpty() && searchQuery.isEmpty() ){
 	    UIDArray empty;
 	    return empty;
@@ -682,5 +686,5 @@ UIDArray OPimContactAccessBackend_SQL::queryByExample ( const UIDArray& uidlist,
 
     // Remove temp table if created
-    if ( !temp_searchQuery.isEmpty( ) ){
+    if ( !datediff_query.isEmpty( ) ){
 	    qu = "DROP TABLE bs";
 	    OSQLRawQuery raw( qu );