How to set dynamically the domain in a field depending on the content on another? (SOLVED)

Question

I have a list and form views, I can select one element in the list to access the form.

The form has fields A and B (both many2one), when A has one value B must filter by these value.

When I change the value in A, I can use function on_change to set the domain in B.

The problem comes when I access this form view from the list and A already has a value, I don't know how to set the domain then, I have tried with default_get and read functions, but I'm not successful.

Pau Ubach · Accepted Answer

I was making it too complicated, I found the solution on https://www.odoo.com/forum/help-1/question/problem-with-a-domain-many2one-22314

It was enough adding the domain to the field, the problem is that I was writing it as:

domain=[('B1.B2', '=', A)]

And it raised an error because A wasn't recognized. I changed to

domain=*"*[('B1.B2', '=', A)]*"*

Now it works very smooth.

Adil Akbar · Answer

You can follow this: https://youtu.be/XGqXEL2qQmE [1]
Hope it helps,
Thanks

[1] https://www.youtube.com/watch?v=XGqXEL2qQmE

Ivan · Answer

Pau, you need to developed an on_change method on the field which change will trigger the domain change.  This page [1] provides an overview of how on_change can be developed.

[1] http://openerpnotes.blogspot.com/2013/02/on-change-event-on-field.html

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