143 lines
5.7 KiB
Python
143 lines
5.7 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of
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#this repository contains the full copyright notices and license terms.
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from trytond.model.fields.field import Field
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class One2Many(Field):
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'''
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Define one2many field (``list``)
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'''
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_type = 'one2many'
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def __init__(self, model_name, field, string='', add_remove=None, help='',
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required=False, readonly=False, domain=None, states=None,
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priority=0, change_default=False, translate=False, select=0,
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on_change=None, on_change_with=None, depends=None, order_field=None,
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context=None):
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'''
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:param model_name: The name of the targeted model.
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:param field: The name of the field that handle the reverse many2one.
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:param add_remove: A list that defines a domain for the add/remove.
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See domain on ModelStorage.search.
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'''
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super(One2Many, self).__init__(string=string, help=help,
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required=required, readonly=readonly, domain=domain,
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states=states, priority=priority, change_default=change_default,
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translate=translate, select=select, on_change=on_change,
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on_change_with=on_change_with, depends=depends,
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order_field=order_field, context=context)
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self.model_name = model_name
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self.field = field
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self.add_remove = add_remove
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__init__.__doc__ += Field.__init__.__doc__
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def get(self, cursor, user, ids, model, name, values=None, context=None):
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'''
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Return target records ordered by the default order of the model.
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:param cursor: the database cursor
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:param user: the user id
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:param ids: a list of ids
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:param model: a string with the name of the model
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:param name: a string with the name of the field
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:param values: a dictionary with the readed values
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:param context: the context
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:return: a dictionary with ids as key and values as value
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'''
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res = {}
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for i in ids:
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res[i] = []
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ids2 = []
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for i in range(0, len(ids), cursor.IN_MAX):
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sub_ids = ids[i:i + cursor.IN_MAX]
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ids2 += model.pool.get(self.model_name).search(cursor, user,
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[(self.field, 'in', sub_ids)], context=context)
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for i in model.pool.get(self.model_name).read(cursor, user, ids2,
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[self.field], context=context):
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res[i[self.field]].append(i['id'])
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for val in res.values():
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val.sort(lambda x, y: cmp(ids2.index(x), ids2.index(y)))
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return res
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def set(self, cursor, user, record_id, model, name, values, context=None):
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'''
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Set the values.
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:param cursor: The database cursor
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:param user: The user id
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:param record_id: The record id
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:param model: A string with the name of the model
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:param name: A string with the name of the field
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:param values: A list of tuple:
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(``create``, ``{<field name>: value}``),
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(``write``, ``<ids>``, ``{<field name>: value}``),
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(``delete``, ``<ids>``),
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(``unlink``, ``<ids>``),
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(``add``, ``<ids>``),
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(``unlink_all``),
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(``set``, ``<ids>``)
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:param context: The context
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'''
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if not values:
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return
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model = model.pool.get(self.model_name)
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for act in values:
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if act[0] == 'create':
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act[1][self.field] = record_id
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model.create(cursor, user, act[1], context=context)
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elif act[0] == 'write':
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act[2][self.field] = record_id
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model.write(cursor, user, act[1] , act[2], context=context)
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elif act[0] == 'delete':
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model.delete(cursor, user, act[1], context=context)
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elif act[0] == 'unlink':
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if isinstance(act[1], (int, long)):
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ids = [act[1]]
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else:
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ids = list(act[1])
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if not ids:
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continue
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ids = model.search(cursor, user, [
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(self.field, '=', record_id),
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('id', 'in', ids),
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], context=context)
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model.write(cursor, user, ids, {
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self.field: False,
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}, context=context)
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elif act[0] == 'add':
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if isinstance(act[1], (int, long)):
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ids = [act[1]]
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else:
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ids = list(act[1])
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if not ids:
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continue
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ids = model.write(cursor, user, ids, {
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self.field: record_id,
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}, context=context)
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elif act[0] == 'unlink_all':
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ids = model.search(cursor, user, [
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(self.field, '=', record_id),
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], context=context)
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model.write(cursor, user, ids, {
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self.field: False,
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}, context=context)
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elif act[0] == 'set':
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if not act[1]:
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ids = [0]
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else:
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ids = list(act[1])
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ids2 = model.search(cursor, user, [
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(self.field, '=', record_id),
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('id', 'not in', ids),
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], context=context)
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model.write(cursor, user, ids2, {
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self.field: False,
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}, context=context)
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if act[1]:
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model.write(cursor, user, ids, {
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self.field: record_id,
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}, context=context)
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else:
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raise Exception('Bad arguments')
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