social/mass_mailing_partner/models/mailing_list.py

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# Copyright 2015 Pedro M. Baeza <pedro.baeza@tecnativa.com>
# Copyright 2015 Antonio Espinosa <antonio.espinosa@tecnativa.com>
# Copyright 2015 Javier Iniesta <javieria@antiun.com>
# Copyright 2020 Tecnativa - Manuel Calero
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
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from odoo import _, api, fields, models
from odoo.exceptions import ValidationError
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class MailingList(models.Model):
_inherit = "mailing.list"
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partner_mandatory = fields.Boolean(string="Mandatory Partner", default=False)
partner_category = fields.Many2one(
comodel_name="res.partner.category", string="Partner Tag"
)
@api.constrains("contact_ids")
def _check_contact_ids_partner_id(self):
contact_obj = self.env["mailing.contact"]
for mailing_list in self:
data = contact_obj.read_group(
[
("id", "in", mailing_list.contact_ids.ids),
("partner_id", "!=", False),
],
["partner_id"],
["partner_id"],
)
if len(list(filter(lambda r: r["partner_id_count"] > 1, data))):
raise ValidationError(
_("A partner cannot be multiple times " "in the same list")
)