oracle provider:

* retrieve comment of materialized views (implements #10063)
* use detected srid (fixes #10091)
* initialize mUseEstimatedMetadata (fixes #10092)
* also consider username in temporary saved credentials (fixes #10093)

Author: jef-n

src/providers/oracle/qgsoracleconn.cpp

@@ -76,14 +76,21 @@ QgsOracleConn::QgsOracleConn( QgsDataSourceURI uri )
     QString username = uri.username();
     QString password = uri.password();
 
+    QString realm( database );
+    if ( !username.isEmpty() )
+      realm.prepend( username + "@" );
+
     while ( !mDatabase.open() )
     {
-      bool ok = QgsCredentials::instance()->get( database, username, password, mDatabase.lastError().text() );
+      bool ok = QgsCredentials::instance()->get( realm, username, password, mDatabase.lastError().text() );
       if ( !ok )
         break;
 
       if ( !username.isEmpty() )
+      {
         uri.setUsername( username );
+        realm = username + "@" + database;
+      }
 
       if ( !password.isEmpty() )
         uri.setPassword( password );
@@ -94,7 +101,7 @@ QgsOracleConn::QgsOracleConn( QgsDataSourceURI uri )
     }
 
     if ( mDatabase.isOpen() )
-      QgsCredentials::instance()->put( database, username, password );
+      QgsCredentials::instance()->put( realm, username, password );
   }
 
   if ( !mDatabase.isOpen() )
@@ -377,12 +384,35 @@ void QgsOracleConn::retrieveLayerTypes( QgsOracleLayerProperty &layerProperty, b
     where = layerProperty.sql;
   }
 
+  QGis::WkbType detectedType = layerProperty.types.value( 0, QGis::WKBUnknown );
+  int detectedSrid = layerProperty.srids.value( 0, -1 );
+
+  Q_ASSERT( detectedType == QGis::WKBUnknown || detectedSrid <= 0 );
+
   QSqlQuery qry( mDatabase );
-  QString sql = QString( "SELECT DISTINCT t.%1.SDO_GTYPE,t.%1.SDO_SRID FROM %2 t WHERE NOT t.%1 IS NULL%3" )
-                .arg( quotedIdentifier( layerProperty.geometryColName ) )
-                .arg( table )
-                .arg( where.isEmpty() ? "" : QString( " AND (%1)" ).arg( where ) );
-  if ( !exec( qry, sql ) )
+  int idx = 0;
+  QString sql = "SELECT DISTINCT ";
+  if ( detectedType == QGis::WKBUnknown )
+  {
+    sql += "t.%1.SDO_GTYPE";
+    if ( detectedSrid <= 0 )
+    {
+      sql += ",";
+      idx = 1;
+    }
+  }
+
+  if ( detectedSrid <= 0 )
+  {
+    sql += "t.%1.SDO_SRID";
+  }
+
+  sql += " FROM %2 t WHERE NOT t.%1 IS NULL%3";
+
+  if ( !exec( qry, sql
+              .arg( quotedIdentifier( layerProperty.geometryColName ) )
+              .arg( table )
+              .arg( where.isEmpty() ? "" : QString( " AND (%1)" ).arg( where ) ) ) )
   {
     QgsMessageLog::logMessage( tr( "SQL:%1\nerror:%2\n" )
                                .arg( qry.lastQuery() )
@@ -397,19 +427,28 @@ void QgsOracleConn::retrieveLayerTypes( QgsOracleLayerProperty &layerProperty, b
   QSet<int> srids;
   while ( qry.next() )
   {
-    QGis::WkbType type = wkbTypeFromDatabase( qry.value( 0 ).toInt() );
-    if ( type == QGis::WKBUnknown )
+    if ( detectedType == QGis::WKBUnknown )
     {
-      QgsMessageLog::logMessage( tr( "Unsupported geometry type %1 in %2.%3.%4 ignored" )
-                                 .arg( qry.value( 0 ).toInt() )
-                                 .arg( layerProperty.ownerName ).arg( layerProperty.tableName ).arg( layerProperty.geometryColName ),
-                                 tr( "Oracle" ) );
-      continue;
+      QGis::WkbType type = wkbTypeFromDatabase( qry.value( 0 ).toInt() );
+      if ( type == QGis::WKBUnknown )
+      {
+        QgsMessageLog::logMessage( tr( "Unsupported geometry type %1 in %2.%3.%4 ignored" )
+                                   .arg( qry.value( 0 ).toInt() )
+                                   .arg( layerProperty.ownerName ).arg( layerProperty.tableName ).arg( layerProperty.geometryColName ),
+                                   tr( "Oracle" ) );
+        continue;
+      }
+      QgsDebugMsg( QString( "add type %1" ).arg( type ) );
+      layerProperty.types << type;
+    }
+    else
+    {
+      layerProperty.types << detectedType;
     }
-    QgsDebugMsg( QString( "add type %1" ).arg( type ) );
-    layerProperty.types << type;
-    layerProperty.srids << ( qry.value( 1 ).isNull() ? 0 : qry.value( 1 ).toInt() );
-    srids << ( qry.value( 1 ).isNull() ? 0 : qry.value( 1 ).toInt() );
+
+    int srid = detectedSrid != -1 ? detectedSrid : ( qry.value( idx ).isNull() ? -1 : qry.value( idx ).toInt() );
+    layerProperty.srids << srid;
+    srids << srid;
   }
 
   qry.finish();
@@ -466,7 +505,6 @@ QString QgsOracleConn::databaseTypeFilter( QString alias, QString geomCol, QGis:
   return QString::null;
 }
 
-
 QGis::WkbType QgsOracleConn::wkbTypeFromDatabase( int gtype )
 {
   QgsDebugMsg( QString( "entering %1" ).arg( gtype ) );

src/providers/oracle/qgsoracleprovider.cpp

@@ -66,6 +66,7 @@ QgsOracleProvider::QgsOracleProvider( QString const & uri )
   mSqlWhereClause = mUri.sql();
   mSrid = mUri.srid().toInt();
   mRequestedGeomType = mUri.wkbType();
+  mUseEstimatedMetadata = mUri.useEstimatedMetadata();
 
   mConnection = QgsOracleConn::connectDb( mUri.connectionInfo() );
   if ( !mConnection )
@@ -545,6 +546,13 @@ bool QgsOracleProvider::loadFields()
     {
       if ( qry.next() )
         mDataComment = qry.value( 0 ).toString();
+      else if ( exec( qry, QString( "SELECT comments FROM all_mview_comments WHERE owner=%1 AND mview_name=%2" )
+                      .arg( quotedValue( mOwnerName ) )
+                      .arg( quotedValue( mTableName ) ) ) )
+      {
+        if ( qry.next() )
+          mDataComment = qry.value( 0 ).toString();
+      }
     }
     else
     {
@@ -2133,12 +2141,14 @@ bool QgsOracleProvider::getGeometryDetails()
     }
   }
 
-  if ( detectedType == QGis::WKBUnknown )
+  if ( detectedType == QGis::WKBUnknown || detectedSrid <= 0 )
   {
     QgsOracleLayerProperty layerProperty;
     layerProperty.ownerName = ownerName;
     layerProperty.tableName = tableName;
     layerProperty.geometryColName = mGeometryColumn;
+    layerProperty.types << detectedType;
+    layerProperty.srids << detectedSrid;
 
     QString delim = "";
 
@@ -2959,9 +2969,6 @@ QGISEXTERN bool deleteLayer( const QString& uri, QString& errCause )
   return true;
 }
 
-// vim: set sw=2 :
-
-
 // ----------
 
 
@@ -3014,3 +3021,5 @@ QVariant QgsOracleSharedData::lookupKey( QgsFeatureId featureId )
     return it.value();
   return QVariant();
 }
+
+// vim: set sw=2 :