31 lines
1.0 KiB
ReStructuredText
31 lines
1.0 KiB
ReStructuredText
Example implementation for the mixin can be found in module `test_base_time_window`.
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As a time window will always be linked to a related model thourgh a M2o relation,
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when defining the new model inheriting the mixin, one should pay attention to the
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following points in order to have the overlapping check work properly:
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- Define class property `_overlap_check_field`: This must state the M2o field to
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use for the to check of overlapping time window records linked to a specific
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record of the related model.
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- Add the M2o field to the related model in the `api.constrains`:
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For example:
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.. code-block:: python
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class PartnerTimeWindow(models.Model):
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_name = 'partner.time.window'
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_inherit = 'time.window.mixin'
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partner_id = fields.Many2one(
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res.partner', required=True, index=True, ondelete='cascade'
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)
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_overlap_check_field = 'partner_id'
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@api.constrains('partner_id')
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def check_window_no_overlaps(self):
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return super().check_window_no_overlaps()
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