Files
notifications-api/app/dao/dao_utils.py
Leo Hemsted c475bd03ce improved service whitelist endpoints
* changed POST to PUT - we are modifiying an already present resource
* improved error handling on PUT
  - return 400 if bad
  - rollback the delete of the previous whitelist on error
* return 204 if PUT succeeds ( NO CONTENT )
2016-09-23 12:21:00 +01:00

43 lines
1.2 KiB
Python

import itertools
from functools import wraps, partial
from app import db
from app.history_meta import create_history
def transactional(func):
@wraps(func)
def commit_or_rollback(*args, **kwargs):
from flask import current_app
from app import db
try:
res = func(*args, **kwargs)
db.session.commit()
return res
except Exception as e:
current_app.logger.error(e)
db.session.rollback()
raise
return commit_or_rollback
def version_class(model_class, history_cls=None):
create_hist = partial(create_history, history_cls=history_cls)
def versioned(func):
@wraps(func)
def record_version(*args, **kwargs):
from app import db
func(*args, **kwargs)
history_objects = [create_hist(obj) for obj in
itertools.chain(db.session.new, db.session.dirty)
if isinstance(obj, model_class)]
for h_obj in history_objects:
db.session.add(h_obj)
return record_version
return versioned
def dao_rollback():
db.session.rollback()