/usr/lib/python2.7/dist-packages/trytond/model/fields/one2one.py is in tryton-server 3.4.0-3+deb8u3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#this repository contains the full copyright notices and license terms.
from types import NoneType
from trytond.model.fields.field import Field
from trytond.model.fields.many2many import Many2Many
from trytond.pool import Pool
class One2One(Many2Many):
'''
Define one2one field (``int``).
'''
_type = 'one2one'
def get(self, ids, model, name, values=None):
'''
Return target record.
:param ids: a list of ids
:param model: a string with the name of the model
:param name: a string with the name of the field
:param values: a dictionary with the read values
:return: a dictionary with ids as key and target id as value
'''
res = super(One2One, self).get(ids, model, name, values=values)
for i, vals in res.iteritems():
res[i] = vals[0] if vals else False
return res
def set(self, Model, name, ids, value, *args):
'''
Set the values.
'''
pool = Pool()
Relation = pool.get(self.relation_name)
to_delete = []
to_create = []
args = iter((ids, value) + args)
for ids, value in zip(args, args):
relations = Relation.search([
(self.origin, 'in', ids),
])
to_delete.extend(relations)
if value:
to_create = []
for record_id in ids:
to_create.append({
self.origin: record_id,
self.target: value,
})
if to_delete:
Relation.delete(to_delete)
if to_create:
Relation.create(to_create)
def __set__(self, inst, value):
Target = self.get_target()
if isinstance(value, dict):
value = Target(*value)
elif isinstance(value, (int, long)):
value = Target(value)
assert isinstance(value, (Target, NoneType))
Field.__set__(self, inst, value)
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