def delete_taskcomponents(self, modifier_id, task_id=None, component_id=None):
if task_id is None and component_id is None:
raise CoreError("the task_id and component_id can't be None at the same time.")
query = TaskComponent.all()
if task_id is not None:
query.filter("task_id =", task_id)
if component_id is not None:
query.filter("component_id =", component_id)
return query.delete(modifier_id)
def fetch_taskcomponents(self, task_id):
query = TaskComponent.all()
query.filter("task_id =", task_id)
return query.fetch()
def has_taskcomponent(self, task_id, component_id):
query = TaskComponent.all()
query.filter("task_id =", task_id)
query.filter("component_id =", component_id)
return query.count() > 0
def delete_taskcomponent(self, task_id , component_id, modifier_id):
query = TaskComponent.all()
query.filter("task_id =", task_id)
query.filter("component_id =", component_id)
query.delete(modifier_id)
