Many2Many filter | Odoo V14 | Odoo Studio

Question

Hi.
I would really appreciate if someone could give me a guide.
I have 2 models:
Doctors
Patients
In the view where I create the patients, I add a Many2Many field with the Doctors model.
The main idea is to link a patient with as many doctors as I want.
Then, add in the Sale Order view  the following Many2one fields:
- Patient
- Doctors

*What would you like?*
Doctor field should only show those doctors that are already linked to the patient.
*What happens right now?*
The Doctor field shows all

Sudhir Arya (ERP Harbor Consulting Services) · Accepted Answer

For this, you will have to write an onchange method to set the domain to filter the doctors based on the selected patient.
You can write the following type of onchange:
@api.onchange('patient_id')
def onchange_patient(self):
return {'domain': {'doctor_ids': [('id', 'in', self.patient_id.doctor_ids.ids)]}}

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