def task_delete_txn(entity):
"""Performs all necessary operations in a single transaction when a task
is deleted.
"""
to_delete = []
to_delete += gci_comment_logic.getForFields(ancestors=[entity])
to_delete += [entity]
db.delete(to_delete)
def getFromKeyFieldsWithCWSOr404(self, fields):
"""Returns the Task, all Comments and all WorkSubmissions for the Task
specified by the fields argument.
For args see base.getFromKeyFieldsOr404().
"""
# pylint: disable=W0621
from soc.modules.gci.logic.models.work_submission import logic as \
gci_work_submission_logic
entity = self.getFromKeyFieldsOr404(fields)
comment_entities = gci_comment_logic.getForFields(
ancestors=[entity], order=['created_on'])
ws_entities = gci_work_submission_logic.getForFields(
ancestors=[entity], order=['submitted_on'])
return entity, comment_entities, ws_entities
