How to modify amount_total from pos_order

Question

Hi,
I'm using Odoo 9 and I would like to *add a value to amount_total* from pos_order.
I tried different things that didn't work as for example inherit _amount_all or use the write function on self.pool.get('pos.order').browse(cr, uid, ids, context=context).
Please help me.
Thanks.

Prakash · Answer

amount total is* function/compute fields* ,
*As compute fields not store in db so you can modify it with the write.* you can override the function associated with the compute filed to modify it's value.
'amount_total': fields.function(*_amount_all*, string='Total', digits_compute=dp.get_precision('Account'), multi='all'), override  *_amount_all*  method .

Matthieu · Answer

Thank you, I understood more that amount_total is generated by _amount_all.
So, I tried to inherit as you said but I think I did something wrong.
Here is my code :
def _amount_all(self, cr, uid, ids, name, args, context=None):
res = super(pos_order, self)._amount_all(cr, uid, ids, name, args, context)
for order in self.browse(cr, uid, ids, context=context):
res[order.id]['amount_total'] += order.coupon_nb
return res

Hunzala · Answer

Hello,
I hope everyone is in good health. I am trying Odoo for test purposes.  I have created the sales order of about 6 items and I assigned them to the different team. My question is that is there any way that I can create the invoice for all 6 items separately from only one account? I have created two invoices of the sales order from two different accounts i.e. Administrator and demo account but for that I had to delete rest of the items in the list and after doing that I was unable to crea

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