Fix drag & drop for PG rasters in DB Manager

Author: radosuav

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

@@ -35,6 +35,7 @@
 except ImportError:
     pass
 
+import re
 
 def classFactory():
     return PostGisDBPlugin
@@ -273,7 +274,7 @@ def gdalUri(self):
         return gdalUri
 
     def mimeUri(self):
-        uri = u"raster:gdal:%s:%s" % (self.name, self.gdalUri())
+        uri = u"raster:gdal:%s:%s" % (self.name, re.sub(":", "\:", self.gdalUri()))
         return uri
 
     def toMapLayer(self):