34 lines
1.1 KiB
Python
34 lines
1.1 KiB
Python
#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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"Test for Tree"
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from trytond.model import ModelView, ModelSQL, fields
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class MPTT(ModelSQL, ModelView):
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'Modified Preorder Tree Traversal'
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_name = 'test.mptt'
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_description = __doc__
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name = fields.Char('Name', required=True)
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sequence = fields.Integer('Sequence')
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parent = fields.Many2One('test.mptt', "Parent", select=1,
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left="left", right="right")
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left = fields.Integer('Left', required=True, select=1)
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right = fields.Integer('Right', required=True, select=1)
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childs = fields.One2Many('test.mptt', 'parent', 'Children')
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active = fields.Boolean('Active')
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def __init__(self):
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super(MPTT, self).__init__()
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self._order.insert(0, ('sequence', 'ASC'))
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self._constraints += [
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('check_recursion', 'recursive_mptt'),
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]
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self._error_messages.update({
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'recursive_mptt': 'You can not create recursive Tree!',
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})
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def default_active(self):
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return True
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MPTT()
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