def to_python(self, value):
if not value or isinstance(value, RasterRenderer):
return value
try:
style_configurations = json.loads(value)
return {int(k): get_renderer_from_definition(v) for k, v in six.iteritems(style_configurations)}
except ValueError as e:
raise ValidationError("Invalid renderer configuration: {}".format(e))
def hydrate_renderer(self, bundle):
if bundle.data.get('renderer'):
bundle.data['renderer'] = get_renderer_from_definition(bundle.data['renderer'])
return bundle