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Nehemias Herrera

I have models A and B:

class A (models.Model):
    _name = 'example.a'

    name = fields.Char(string="Model A")

    b_id = fields.Many2one('example.b', string='Model B')

class B (models.Model):

   _name = 'example.b'

   name = fields.Char(string="Model B")

    a_ids = fields.One2many('example.a', 'b_id', string="Models A")

I want to Add an item in a_ids from the existing records of A, not create new ones, how can this be achieved ? the autogenerated view for a_ids field only allows me to insert new records everytime I click Add an item, How can I show a list of existing records from the Many2One b_id field in model A. I though odoo will automagically show me a list of such values since the declaration of the field explicitly names the field in the Many2One relationship, thanks in advance

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Sajin Aziz
Best Answer

Try this on your view to show existing records when u click Add an item

<field name="a_ids" widget="many2many"/>

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Tzin
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Actually what you wrote must work. I have something very similar in my extension of res.partner:

wo_ids = fields.One2many('inspection_tech.work_order',
                             inverse_name = "customer",
                             string="Work Orders", 
                             readonly=True)

In my partner view I have added the work order view in a tab:

<notebook position="inside">
                    <page string="Work Orders">
                        <field name="wo_ids"/>
 And it works as a charm. Are you sure you have  example.a records with b_id point to the viewed example.b instance?     

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