33 lines
1.1 KiB
Python
Executable File
33 lines
1.1 KiB
Python
Executable File
# 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 sql.conditionals import Coalesce
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from sql.operators import Equal
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from trytond.model import (
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DeactivableMixin, Exclude, ModelSQL, ModelView, fields, tree)
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class Category(DeactivableMixin, tree(separator=' / '), ModelSQL, ModelView):
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"Category"
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__name__ = 'party.category'
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name = fields.Char(
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"Name", required=True, translate=True,
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help="The main identifier of the category.")
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parent = fields.Many2One(
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'party.category', "Parent",
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help="Add the category below the parent.")
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childs = fields.One2Many(
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'party.category', 'parent', "Children",
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help="Add children below the category.")
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@classmethod
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def __setup__(cls):
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super(Category, cls).__setup__()
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t = cls.__table__()
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cls._sql_constraints = [
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('name_parent_exclude',
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Exclude(t, (t.name, Equal), (Coalesce(t.parent, -1), Equal)),
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'party.msg_category_name_unique'),
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]
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cls._order.insert(0, ('name', 'ASC'))
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