def patch(self):
"""
Handles a PATCH request.
http://jsonapi.org/format/#crud-updating-relationships
"""
# Make sure the request contains a valid JSONapi relationship object.
relationship_object = self.request.json
validators.assert_relationship_object(relationship_object)
# Patch the relationship.
unserializer = self.api.get_unserializer(self.real_typename)
yield from unserializer.update_relationship(
self.db, self.resource, self.relname, relationship_object
)
# Save thte changes.
self.db.save([self.resource])
yield from self.db.commit()
# Build the response
self.response.headers["content-type"] = "application/vnd.api+json"
self.response.status_code = 200
self.response.body = self.build_body()
return None
def post(self):
"""
Handles a POST request.
This method is only allowed for to-many relationships.
http://jsonapi.org/format/#crud-updating-relationships
"""
# This method is only allowed for *to-many* relationships.
if not self.relationship.to_many:
raise errors.MethodNotAllowed()
# Get the relationship document from the request.
relationship_object = self.request.json
validators.assert_relationship_object(relationship_object)
# Extend the relationship.
unserializer = self.api.get_unserializer(self.real_typename)
yield from unserializer.extend_relationship(
self.db, self.resource, self.relname, relationship_object
)
# Save the resource.
self.db.save([self.resource])
yield from self.db.commit()
# Build the response
self.response.headers["content-type"] = "application/vnd.api+json"
self.response.status_code = 200
self.response.body = self.build_body()
return None