Using Onchange to change the domain of an existing field

Question

Hi how can i use onchange to change the domain of an already existing field. For example, if i want to make it so that when i select a vendor to create a purchase order the list of products i can choose is restricted to those that share a value with the vendor
@api.onchange ( 'partner_id' )
def  onchange_product_list ( self ):
return { 'domain' : { 'product_id' : [( 'partner_id.supplier_code' ,  '=' ,  'self.sup_product_code' )]}} This is what i have so far
Using Odoo v11

subbarao · Accepted Answer

Hello Leke,
Please try the following code in xml for product_id field
inherit and update the existing domain
domain_new = old_domain + [(' sup_product_code','=',parent .supplier_code )]
<field name="product_id' domain="domain_new"/>

before this add new field on Purchase Order  supplier_code and update this field on partner onchange function.

Nitin Kantak · Answer

Apply a domain to the field which is in the purchase.order.line as follows:
return  { 'domain' : { 'product_id' : [( 'partner_id.supplier_code' ,  '=' ,   self.order_id.sup_product_code  )]}}

* here *order_id* is just an example . You have to mention many2one field in purchase.order.line containing object purchace.order .

Denis Lorenzo · Answer

Try this:
return  { 'domain' : { 'product_id' : [( 'partner_id.supplier_code' ,  '=' ,  *self.sup_product_code* )]}}
without quotes. I think everything else is correct

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