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I tried to add section_and_note_one2many widget in purchase order model. But the lines don't retain the sequence after saving.
I had to create a sequence record manually and write an onchange to increment the sequence. Which works perfectly.
But I see in the sale.order model there is nothing like separate sequence record or onchange. So I wonder how it works.
Thanks!
Make sure that:
* you define the _order in the comodel of section_and_note_one2many table. It should be something like:
_order = "sequence,id"* you apply the widget 'handle' in the tree view in the column sequence, e.g.:<field name='section_and_note_one2many'>
<tree>
<field name='sequence' widget='handle'/>
<!-- Other fields -->
</tree>
</field>
No onchange, write, or inverse methods are required. The logic is behind the widget 'handle' and the related javascript. The '_order' is responsible for saving the order
Thanks! It worked. I think the id in _order is required. That's what I was missing.
Thanks! You saved my day .
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Reorder records in tree view using handle widget: https://learnopenerp.blogspot.com/2022/05/use-handle-widget-to-reorder-records-in-tree-view-odoo15.html