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