raise Exception("Abstract, update() must be implemented by all LayerSource-derived classes (object is %s)" % str(vars(self)))
def save(self, *args, **kwargs):
- if isinstance(self, LocalLayerSource):
- self.sourcetype = LayerSource.TYPE_LOCAL
- elif isinstance(self, LayerIndexLayerSource):
- self.sourcetype = LayerSource.TYPE_LAYERINDEX
- elif isinstance(self, ImportedLayerSource):
- self.sourcetype = LayerSource.TYPE_IMPORTED
+ if self.sourcetype == LayerSource.TYPE_LOCAL:
+ self.__class__ = LocalLayerSource
+ elif self.sourcetype == LayerSource.TYPE_LAYERINDEX:
+ self.__class__ = LayerIndexLayerSource
+ elif self.sourcetype == LayerSource.TYPE_IMPORTED:
+ self.__class__ = ImportedLayerSource
elif self.sourcetype == None:
raise Exception("Unknown LayerSource-derived class. If you added a new layer source type, fill out all code stubs.")
return super(LayerSource, self).save(*args, **kwargs)
def get_object(self):
+ # preset an un-initilized object
+ if None == self.name:
+ self.name=""
+ if None == self.apiurl:
+ self.apiurl=""
+ if None == self.sourcetype:
+ self.sourcetype=LayerSource.TYPE_LOCAL
+
if self.sourcetype == LayerSource.TYPE_LOCAL:
self.__class__ = LocalLayerSource
elif self.sourcetype == LayerSource.TYPE_LAYERINDEX: