Hello friends :)

Please, i have tried to add some fields in the menu Human Ressources.

So, i use an on_change function which gave me error that i havent resolve yet.

Here is my code:

 def on_change_contract_id(self, cr, uid, ids,  field_name, context=None):
        if field_name == False:
	    My_error_Msg =  'Please, select your EMPLOYEE'
	    raise osv.except_osv(_("Error!"), _(My_error_Msg))
	else: 
	    print employee_id
	    obj = self.pool.get('hr.contract')
            obj_ids = obj.search(cr, uid, [('employee_id', '=', field_name)])
 res = obj.read(cr, uid, obj_ids, ['name'], context)
            res = {'value':{.................................;
 }
                }
            return res

The problem is that i need to work with the employee_id but i didnt understand how to be able to use it when i try the inheritance.

Need an answer please