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# -*- coding: utf-8 -*-
# © 2016 Jairo Llopis <jairo.llopis@tecnativa.com>
# License LGPL-3 - See http://www.gnu.org/licenses/lgpl-3.0.html
from openerp import _, api, fields, models
from openerp.exceptions import ValidationError
class CustomInfoTemplate(models.Model):
"""Defines custom properties expected for a given database object."""
_description = "Custom information template"
_name = "custom.info.template"
_order = "model_id, name"
_sql_constraints = [
("name_model",
"UNIQUE (name, model)",
"Another template with that name exists for that model."),
]
name = fields.Char(required=True, translate=True)
model = fields.Char(
index=True,
readonly=True,
required=True)
model_id = fields.Many2one(
'ir.model',
'Model',
compute="_compute_model_id",
store=True,
ondelete="cascade",
)
property_ids = fields.One2many(
'custom.info.property',
'template_id',
'Properties',
oldname="info_ids",
context={"embed": True},
)
@api.multi
@api.depends("model")
def _compute_model_id(self):
"""Get a related model from its name, for better UI."""
for s in self:
s.model_id = self.env["ir.model"].search([("model", "=", s.model)])
@api.multi
@api.constrains("model")
def _check_model(self):
"""Ensure model exists."""
for s in self:
if s.model not in self.env:
raise ValidationError(_("Model does not exist."))
# Avoid error when updating base module and a submodule extends a
# model that falls out of this one's dependency graph
with self.env.norecompute():
oldmodels = set(s.mapped("property_ids.info_value_ids.model"))
if oldmodels and {s.model} != oldmodels:
raise ValidationError(
_("You cannot change the model because it is in use."))
@api.multi
def check_access_rule(self, operation):
"""You access a template if you access its model."""
for s in self:
model = self.env[s.model]
model.check_access_rights(operation)
model.check_access_rule(operation)
return super(CustomInfoTemplate, self).check_access_rule(operation)