Flask-SQLAchemy Session without expire_on_commit

no_expire_on_commit.py

""" Usefull before 2.0 when serializing object after commit, now you should use *returning* """

from contextlib import contextmanager

# More details here: https://stackoverflow.com/a/51452451
@contextmanager
def no_expire():
    """Provide db.session with the expire_on_commit set to False only this time."""
    s = db.session()
    s.expire_on_commit = False
    try:
        yield
    finally:
        s.expire_on_commit = True