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Pavel

How can I execute a python function when in a One2many I click on the delete button and I still haven't saved the parent form.

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Pavel
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Hi Jainesh, your solution did not work for me, even if I save the parent form, it doesn't work when I delete either, it doesn't enter the unlink method, I'm in Odoo15 enterprise

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Jainesh Shah(Aktiv Software)
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Hello Pavel,

You just need to follow below steps to achieve this.

Please Find code in comment. 

I hope this will help you.

Thanks & Regards,
Email: odoo@aktivsoftware.com
Skype: kalpeshmaheshwari

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Jainesh Shah(Aktiv Software)

Code :-

Step 1: Pass the custom flag in context.

<field name="o2m_field" context="{'is_from_o2m_field': True}">
<tree>...</tree>
</field>

Step 2: Inherit the relational model of our o2m_field and extend the unlink method like below.

def unlink(self):
if context.get("is_from_o2m_field"):
# write your custom code to call the desired function.
pass
return super().unlink()