How to set the default value in the view of an existing form, depending on the decision (boolean) field?

Question

Hello,
I want to change the view of the "Contacts/new" form when the "citizen" (I added it in my .py file as a boolean field) is ticked. When it is True, I want the "zip" field to be read-only type with default value "12345" , and when it is False just normally.
If I was not completely clear, or if you need my code, please let me know.

Dejan Dakovic · Accepted Answer

Thanks for the advice @Ibrahim ,
I added this in my code

my .py
citizens = fields.Boolean('Citizens', default=True)

@api.onchange('citizens')
def _is_citizens(self):
if self.citizens:
    self.zip = 85320    
else:
    self.zip = None

my .xml
<field name="zip" position="replace">
    <field name="zip" placeholder="Zip" attrs="{'readonly':[('citizens','=',True)]}"/>
</field>

now it works as I wanted

Ibrahim Boudmir · Answer

Hi,
If i were you, i would do this :
1- Create a second menu called Citizens.
2- in the action, i will add a domain [('is_citizen', '=', True)] and a context {'default_citizen': True, 'default_zip':"12345"}
3- In form view, boolean citizen will be invisible, zip will be readonly. I would think of adding a tag called "Citizen" by default.
4- in Contacts, i will add domain [('is_citizen':False)]
That is to say, Citizens will be completely separated from other Contacts.
What do you think ?
Regards.

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