Modify a default value from Button Action

Question

Hello,
I have declared a field w ith a default value as follows :
status = fields.Char( string = "Status_Vente" , required = False , editable = False , default ='Disponible') I would like to change the "status" value when i click in button. This button is defined in another class.
I have tried to change the "status" value by this instruction, but it dosen't work for me :
def button_action( self ):
...........
self .status= 'Vendu'

Avinash Nk · Accepted Answer

Hi Zakaria,
You can't do that.
The self now contains the instances of the new class.
You can do it by the following way.

def button_action(self):
instance_of_needed_model = self.env['needed.model'].browse(needed record id)
instance_of_needed_model.write({'status': 'Vendu'})   Thank you.

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