Create OGR file for SPATIALITE

     
    def get_group_file(self, srs, name, path):
        import ogr, os
        drv = ogr.GetDriverByName( "SQLite" )
        options = ['SPATIALITE=YES', 'INIT_WITH_EPSG=YES','OGR_SQLITE_SYNCHRONOUS=OFF']
        
        if os.path.exists(path):
            os.remove(path)
        
        ds = drv.CreateDataSource(path, options=options)
        layer = ds.CreateLayer( name , srs, ogr.wkbPolygon)

        fdfn =  ogr.FieldDefn('code', ogr.OFTString )
        fdfn.SetWidth(7)
        layer.CreateField(fdfn)
        
        fdfn =  ogr.FieldDefn('name', ogr.OFTString )
        fdfn.SetWidth(30)
        layer.CreateField(fdfn)
        
        layer.CreateField(ogr.FieldDefn('id', ogr.OFTInteger ))
        layer.CreateField(ogr.FieldDefn('area', ogr.OFTInteger ))       
          
        
    
        def add_feature(layer, g, id, name, code):
            
            #ds,layer = self.get_group_file(parcels.get_srs(),'zone{}'.format(zone_no),self.filesystem.path('extracts','zone{}.sqlite'.format(zone_no))) 

            feature = ogr.Feature(layer.GetLayerDefn())
            feature.SetField('name', str(name))
            feature.SetField('code', str(code))
            feature.SetField('id', id)
            feature.SetField('area', g.GetArea())
            feature.SetGeometry(g)
            layer.CreateFeature(feature)            
            feature.Destroy()  
    
    
        return ds, layer, add_feature