I have searched and tried all the answers related to this such as https://www.odoo.com/forum/help-1/question/unpaid-leaves-deduction-not-working-16131, i.e, result=-(contract.wage/30)*worked_days.Unpaid.number_of_days but the Unpaid object seems to be not available and so i tried this https://www.odoo.com/forum/help-1/question/error-wrong-python-condition-defined-for-salary-rule-14949, i.e, result=-(contract.wage/31)*worked_days.number_of_days but now the my Leave deduction salary rule gives the amount as zero and the sequence number of my leave deduction salary number is less than net salary rule. What am i doing wrong?, Is it possible to create a salary rule to deduct unpaid leaves from the salary calculation in odoo 8?