Merge pull request #651 from slarosa/fix_dbmanager

[DB Manager] fix for PostGIS Raster Layer

Author: brushtyler

python/plugins/db_manager/db_plugins/postgis/plugin.py

@@ -292,10 +292,10 @@ def mimeUri(self):
 		return uri
 
 	def toMapLayer(self):
-		from qgis.core import QgsRasterLayer
+		from qgis.core import QgsRasterLayer, QgsContrastEnhancement
 		rl = QgsRasterLayer(self.gdalUri(), self.name)
 		if rl.isValid():
-			rl.setContrastEnhancementAlgorithm("StretchToMinimumMaximum")
+			rl.setContrastEnhancement(QgsContrastEnhancement.StretchToMinimumMaximum)
 		return rl
 
 class PGTableField(TableField):