def map_related_to_field_and_label(field_name, related_model):
"""
Creates a mapping from the _id attribute of ForeignKeys to
to the related attribute (e.g. built_form_id to built_form).
It puts the related attribute in the main dict with its resource_uri
and puts a label representation in the __labels dict so that
the related attribute can map from its id to a label. This
is similar to what the regular FeatureResource does but it is
more manual since we only have the _id attribute and must
resolve the related instance ourselves
"""
client_field_name = self.client_field_name(field_name)
related_id = getattr(
bundle.obj, client_field_name) if hasattr(
bundle.obj, client_field_name) else None
if related_id:
related_model_instance = related_model.objects.get(
id=related_id)
related_field_name = field_name.replace('_id', '')
return {
# Get the resource class of the related model so we can make a uri
related_field_name:
FootprintResource.resolve_resource_class(
related_model)().get_resource_uri(
related_model_instance),
# The label representation
'__labels': {
related_field_name:
LayerSelection.resolve_instance_label(
related_model_instance)
}
}
return None
def process_dict(self, dct, bundle, outer_key=None):
for key, value in (dct or {}).items():
updated_key = self.key_dehydrate_override().get(key, key)
if updated_key != key:
del dct[key]
if isinstance(value, dict):
dct[updated_key] = value
if isinstance(value, dict):
self.process_dict(value, bundle, outer_key=updated_key)
else:
# value is a model instance that is to be dehydrated to a resource_uri
updated_model_instance = self.instance_dehydrate_override().get(updated_key, lambda x,y: value)(bundle.obj, value)
# Find the resource field on the resource that matches one of these keys
field = self.resolve_resource_field(*([outer_key, updated_key] if outer_key else [updated_key]))
if field:
field_resource = field.to_class()
elif value:
# Just search FootprintResource for a resource class that matches
field_resource = FootprintResource.match_existing_resources(value.__class__)[0]()
dct[updated_key] = field_resource.dehydrate_resource_uri(updated_model_instance) if value else None
return dct
def map_related_to_field_and_label(field_name, related_model):
"""
Creates a mapping from the _id attribute of ForeignKeys to
to the related attribute (e.g. built_form_id to built_form).
It puts the related attribute in the main dict with its resource_uri
and puts a label representation in the __labels dict so that
the related attribute can map from its id to a label. This
is similar to what the regular FeatureResource does but it is
more manual since we only have the _id attribute and must
resolve the related instance ourselves
"""
client_field_name = self.client_field_name(field_name)
related_id = getattr(bundle.obj, client_field_name) if hasattr(bundle.obj, client_field_name) else None
if related_id:
related_model_instance = related_model.objects.get(id=related_id)
related_field_name = field_name.replace('_id', '')
return {
# Get the resource class of the related model so we can make a uri
related_field_name: FootprintResource.resolve_resource_class(related_model)().get_resource_uri(related_model_instance),
# The label representation
'__labels': {related_field_name: LayerSelection.resolve_instance_label(related_model_instance)}
}
return None
