Follow up a1e57a7 : fix handling of filtered layers

src/core/providers/ogr/qgsogrprovider.cpp

@@ -1928,21 +1928,22 @@ bool QgsOgrProvider::addFeatures( QgsFeatureList &flist, Flags flags )
   const bool inTransaction = startTransaction();
 
   QgsFeatureId incrementalFeatureId = -1;
-  OGRGeometryH filter;
   if ( !( flags & QgsFeatureSink::FastInsert ) &&
        ( mGDALDriverName == QLatin1String( "CSV" ) || mGDALDriverName == QLatin1String( "XLSX" ) || mGDALDriverName == QLatin1String( "ODS" ) ) )
   {
-    filter = mOgrLayer->GetSpatialFilter();
-    if ( filter )
+    QMutex *mutex = nullptr;
+    OGRLayerH layer = mOgrOrigLayer->getHandleAndMutex( mutex );
     {
-      filter = OGR_G_Clone( filter );
-      mOgrLayer->SetSpatialFilter( nullptr );
-    }
+      QMutexLocker locker( mutex );
 
-    incrementalFeatureId = static_cast< QgsFeatureId >( mOgrLayer->GetFeatureCount() ) + 1;
+      if ( !mSubsetString.isEmpty() )
+        OGR_L_SetAttributeFilter( layer, nullptr );
+
+      incrementalFeatureId = static_cast< QgsFeatureId >( OGR_L_GetFeatureCount( layer, false ) ) + 1;
 
-    if ( filter )
-      mOgrLayer->SetSpatialFilter( filter );
+      if ( !mSubsetString.isEmpty() )
+        OGR_L_SetAttributeFilter( layer, textEncoding()->fromUnicode( mSubsetString ).constData() );
+    }
   }
 
   bool returnvalue = true;

tests/src/core/testqgsogrprovider.cpp

@@ -357,29 +357,40 @@ void TestQgsOgrProvider::testCsvFeatureAddition()
 {
   QString csvFilename = QDir::tempPath() + "/csvfeatureadditiontest.csv";
   QFile csvFile( csvFilename );
-  if ( csvFile.open( QIODevice::WriteOnly | QIODevice::Append ) )
+  if ( csvFile.open( QIODevice::WriteOnly | QIODevice::Truncate ) )
   {
     QTextStream textStream( &csvFile );
-    textStream << QLatin1String( "col1,col2\n1,2\n" );
+    textStream << QLatin1String( "col1,col2,col3\n0,0,\"csv0\"\n" );
     csvFile.close();
   }
 
   QgsVectorLayer *csvLayer = new QgsVectorLayer( csvFilename, QStringLiteral( "csv" ) );
   QVERIFY( csvLayer->isValid() );
   QCOMPARE( csvLayer->featureCount(), 1 );
 
-
-  QgsFeature feature( csvLayer->fields() );
-  feature.setAttribute( 0, 1 );
-  feature.setAttribute( 1, 1 );
-  feature.setAttribute( 2, QLatin1String( "csv" ) );
+  QgsFeature f1( csvLayer->fields() );
+  f1.setAttribute( 0, 1 );
+  f1.setAttribute( 1, 1 );
+  f1.setAttribute( 2, QLatin1String( "csv1" ) );
+  QgsFeature f2( csvLayer->fields() );
+  f2.setAttribute( 0, 2 );
+  f2.setAttribute( 1, 2 );
+  f2.setAttribute( 2, QLatin1String( "csv2" ) );
 
   QgsFeatureList features;
-  features << feature << feature;
+  features << f1 << f2;
   csvLayer->dataProvider()->addFeatures( features );
   QCOMPARE( features.at( 0 ).id(), 2 );
   QCOMPARE( features.at( 1 ).id(), 3 );
 
+  csvLayer->setSubsetString( QStringLiteral( "col1 = '2'" ) );
+  QCOMPARE( csvLayer->featureCount(), 1 );
+
+  features.clear();
+  features << f1;
+  csvLayer->dataProvider()->addFeatures( features );
+  QCOMPARE( features.at( 0 ).id(), 4 );
+
   delete csvLayer;
   QFile::remove( csvFilename );
 }