How to create a 'onchange' with many2one. [Solved]

Question

Hi, Juan Carlos again...

As you know, I'm new in Odoo, and I would learn a lot.

Ok I'm tryin to create a On change with my field many2one, I try to learn onchange, but is very difficult for me, help please.

my.py

class DetalleFactura(models.Model):
_name = "openacademy.detalle"

def onchange_producto_id(self,cr,uid,ids, producto_id,context=None):
precio = self.pool.get('product.product', 'price')
return {precio}

name = fields.Char(string="Titulo")
producto_id = fields.Many2one('product.prod

Harsh Dhaduk · Accepted Answer

HI Juan,

*In Odoo 8 Api following example help you to basic understand of how's work on change method and you not need to write in xml file.*

my.py

class DetalleFactura(models.Model):
_name = "openacademy.detalle"

@api.onchange('producto_id')
def onchange_producto_id(self):
# Your Code but if you want to use any field use with self.producto_id like that also you can use all fields using self.<your field name>
# About return type in this you can not return any value but you simply set your va

Ivan · Answer

onchange need to return a dictionary in this format: {'value': {'field1': value1, 'field2': value 2}, 'domain': {'field-a': domain-a, 'field-b': domain-b}, 'warning': {'title': 'This is a warning', 'message': "You have done something terribly wrong"}}.

Sehrish · Answer

Look into Example:
campus_id = fields.Many2one('model.campus', string="Campus Name") department_id = fields.Many2one('model.department', string="Department Name")  I have two many2one fields (campus_id and department_id), and we want to change the department on the basis of campus field.
Todo so we use onchange method and in onchange method we need to return domain.

1     @api.onchange('campus_id')
2    def _campus_onchange(self):
3        res = {}
4        res['domain']={'department_id':[('cam

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