Widget="selection" With Domain Fields Issue

here is my view xml part here is my model python part 'bpl_company_id':fields.many2one('res.company',

Solution 1:

Dynamic domains are not supported on selection widgets, simple as that

https://lists.launchpad.net/openerp-india/msg03333.html

Solution 2:

You have to use an onchange to set the domain dynamically. Look at this.