/usr/lib/python2.7/dist-packages/trytond/model/workflow.py is in tryton-server 3.0.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | #This file is part of Tryton. The COPYRIGHT file at the top level of
#this repository contains the full copyright notices and license terms.
from functools import wraps
class Workflow(object):
"""
Mix-in class to handle transition check.
"""
_transition_state = 'state'
@classmethod
def __setup__(cls):
super(Workflow, cls).__setup__()
cls._transitions = set()
@staticmethod
def transition(state):
def check_transition(func):
@wraps(func)
def wrapper(cls, records, *args, **kwargs):
filtered = []
to_update = {}
for record in records:
current_state = getattr(record, cls._transition_state)
transition = (current_state, state)
if transition in cls._transitions:
filtered.append(record)
if current_state != state:
to_update[record] = current_state
result = func(cls, filtered, *args, **kwargs)
if to_update:
for record in to_update.keys():
current_state = getattr(record, cls._transition_state)
if current_state != to_update[record]:
del to_update[record]
cls.write(to_update.keys(), {
cls._transition_state: state,
})
return result
return wrapper
return check_transition
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