How to make a field readonly in a form view according to another model field value?

Question

Hello there,
Let me explain with an example.
In the sale order model, we have these two fields : *note (text)* and* picking_ids (many2many*)
In the form view of the sale order, I would want the field *note* readonly if all the associated pickings of the sale order are in "confirmed" state.
Actually, the note field is displayed like it in the sale order form view :
<field name="note" class="oe_inline"/> How could I manage it?

EDIT #1
I would want something like that. But it doesn't work.  :
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Pascal Tremblay · Accepted Answer

**Here is our solution for the above example.** Thanks all for your help.

I have defined a new boolean field in the sale.order model:
all_picking_confirmed = fields.Boolean(compute='compute_all_picking_confirmed') With his function :
def compute_all_picking_confirmed(self):
for order in self:
order.all_picking_confirmed = True
if order.picking_ids:
for picking in order.picking_ids:
if picking.state not in ('done'):
order.all_picking_confirmed = False
else:
order.all_picking_confirmed = False
An

Benoît Vézina · Answer

Salut Pascal, You have a pretty good example in the OCA (probably many other place but first to came to my mind) partner_contact/partner_firstname, togling the read only if it's not a company { 'readonly': [('is_company', '=', False)], 'required': [('is_company', '=', True)] } If it's not a boolean, but a matter of list of items, you can go straight to the if variableliste as per OCA/website_s

Hardik Prajapati (hpr) · Answer

Hi, Pascal Tremblay
You can use (readonly="1") in field.

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Here is our solution for the above example.

Thanks all for your help.

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