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# -*- coding: utf-8 -*-
# Copyright 2015 Grupo ESOC Ingeniería de Servicios, S.L.U. - Jairo Llopis
# Copyright 2016 Tecnativa - Vicent Cubells
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
from odoo import _
from odoo.exceptions import ValidationError
def pre_init_hook(cr):
"""Make sure there are no duplicates before installing the module.
If you define a unique key in Odoo that cannot be applied, Odoo will log a
warning and install the module without that constraint. Since this module
is useless without those constraints, we check here if all will work before
installing, and provide a user-friendly message in case of failure.
"""
errors = list()
# Search for duplicates in emails
cr.execute("""SELECT c.email, l.name, COUNT(c.id)
FROM
mail_mass_mailing_contact AS c
INNER JOIN mail_mass_mailing_list AS l ON c.list_id = l.id
GROUP BY l.name, l.id, c.email
HAVING COUNT(c.id) > 1""")
for result in cr.fetchall():
errors.append(
_("{0} appears {2} times in list {1}.").format(*result))
# Search for duplicates in list's name
cr.execute("""SELECT name, COUNT(id)
FROM mail_mass_mailing_list
GROUP BY name
HAVING COUNT(id) > 1""")
for result in cr.fetchall():
errors.append(
_("There are {1} lists with name {0}.").format(*result))
# Abort if duplicates are found
if errors:
raise ValidationError(
_("Fix this before installing:") +
"".join("\n" + e for e in errors))