i have a many2many table,But i need to give domain as only the partner's record in the model needs to be shown in the many2many table - odoo

Question

class HealthProfileInherit(models.Model):
_inherit = 'health.profile'
health_profile_health_test_id = fields.Many2many('health.test',
string ='Laboratory Test')
this the field connecting the 2 tables, how will give domain here? Do I wanna write a function or can give domain inside the field?

Answer 1

The following domain:
domain="[('partner_id', '=', partner_id)]"
will filter records shown in the popup list after you click on the add item button link. only the test records with the profile partner will be visible.
String domains are supposed to be dynamic and evaluated on the client-side only.
By default, users can create records from the popup list and they can select any partner in the partner_id field.
If you want to disable the creation option from the popup list use the no_create option:
options="{'no_create': True}"
If you want to keep the create button and force users to select the profile partner, you can create a new form for the health.test model and set the partner field invisible then pass the default partner value in context and force the many2many field to use that form.
<field name="health_profile_health_test_id"
domain="[('partner_id', '=', partner_id)]"
context="{'form_view_ref': 'module_name.health_test_form', 'default_partner_id': partner_id}"/>
Remember that the form view with the lowest priority will be used as the default form view (The default priority value is 16):
Example:
<record id="health_test_form" model="ir.ui.view">
<field name="name">health.test Form</field>
<field name="model">health.test</field>
<field name="priority" eval="20"/>
<field name="arch" type="xml">
<form>
<group>
<field name="partner_id" invisible="True"/>
....
</group>
....
</form>
</field>
</record>
Edit:
String domains are dynamic and evaluated in client-side, for example the "[('partner_id', '=', partner_id)]" string domain will be evaluated to [('partner_id', '=', 26)] and if the list has already selected records, the records will be excluded using ['!', ['id', 'in', list_of_ids]].
But when passing the domain as a list with the many2one field reference, the value will be of type Many2one and the server should raise a RecursionError when trying to get field attributes (tested in v12, v13).
If you look in the Odoo source code you will find many examples using a list domain but with simple values like booleans, strings, etc.