Selecting items for one2many relation

Question

Hello, I am developing a module in Odoo8.

I have a relation between two models. Model A has a one2many relation pointing to model B, and model B has Many2one relation pointing to model A.

In a view of model A I want to select one or more items of model B. But if I put a field like <field name="name_of_one2many_relation" /> I can create one or more records of model B and relate them with record of model A. I want to select previously created records of model B, not create new ones. How can I do

Sudhir Arya (ERP Harbor Consulting Services) · Accepted Answer

Hello  José [1] ,

I would suggest to use * many2many [2] * field which will allow you to select existing records unlike one2many where you have to create the recrods.

[1] https://www.odoo.com/forum/help-1/user/360629
[2] https://doc.odoo.com/6.0/developer/2_5_Objects_Fields_Methods/field_type/#relational-types

Ivan · Answer

You can also still use one2many field with many2many_list widget. Just set widget='many2many_list' in the name_of_one2many_relation fields tag in the view and you get the many2many list behaviour (selecting from existing record, etc.) from a one2many field. It also applicable vv (many2many using one2many_list widget).

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