##controller

class Absent < ActiveRecord::Base
    belongs_to :employee
    belongs_to :leave_credit

    after_save :update_employee_leave_credit


private

    def update_employee_leave_credit
     credit = self.employee.employee_leave_credit
        if do_credit
            credit.total_used += 1
            credit.save
        end
    end

    def do_credit
        1 if ( employee_employee_leave_credit.number_of_days  > employee_employee_leave_credit.total_used )
    end

    def employee_employee_leave_credit
        employee.employee_leave_credit
    end


end