def update_bike_data_if_old(time_limit=app.config['BIKE_DATA_TIMEOUT']):
"""
If the bike point data is out of date by more than time_limit,
then update it from the TfL API
"""
last_edited = Meta.get_last_edited()
now = datetime.datetime.now()
# if the database is due an update
if not last_edited or now - last_edited > time_limit:
update_bike_data()
# update the last edited timestamp
Meta.update_last_edited()
def test_set_last_edited(self):
# test it once
now = Meta.update_last_edited()
all_meta = db.session.query(Meta).all()
assert len(all_meta) == 1
l = Meta.get_last_edited()
assert l == now
# test it twice
now2 = Meta.update_last_edited()
all_meta = db.session.query(Meta).all()
assert len(all_meta) == 1
l2 = Meta.get_last_edited()
assert l2 == now2
def test_initial_last_edited_no_data(self):
all_meta = db.session.query(Meta).all()
assert len(all_meta) == 0
assert Meta.get_last_edited() == None
