I want to display many2one, x_categ_id, field in inherited mrp.bom class. I have defined it in _columns{..} but I am getting empty values, in the table mrp_bom, for that column, i.e. "x_categ_id". I must be missing something? Any insights are greatly appreciated.
class mrp_bom(osv.osv):
_inherit = 'mrp.bom'
_name = 'mrp.bom'
_columns = {
'x_categ_id': fields.many2one('product.category','Item Class',
required=True, change_default=True),
}