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Hello, i have 2 classes:


class ModelA:

         _name = "model.a"


​first_field = fields.One2many(

​ ​comodel_name="model.b",

​ ​inverse_name="second_field",

​ ​ondelete="cascade"

​ ​)


class ModelB:

​_name = "model.b"


​second_field = fields.Many2one(

​ ​comodel_name="model.a",

​ ​ondelete="cascade"

​ ​)


If one2many is deleted, many2one will also be deleted. However, if many2one is deleted, the data in one2many still remains. How to delete the one2many if many2one has been deleted?



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Best Answer

Hi,

This is not a usual behaviour, but you can achieve it by supering the unlink function.

def unlink(self) is the function that works when deleting a record, so you could call that function and super it and make necessary changes.

Regards

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Author

Thank you so much! It worked

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