Worked day calculation in Payroll

We allow the employees create their leave request in hours by inputting the "Number of Days" field with a float number, 0.5 for example. But in hr_payroll module, it will be calculated as one full day which is not correct.

I think the problem is in the get_worked_day_lines() method of hr_payslip class:

                        #if he was on leave, fill the leaves dict
                        if leave_type in leaves:
                            leaves[leave_type]['number_of_days'] += 1.0
                            leaves[leave_type]['number_of_hours'] += working_hours_on_day
                        else:
                            leaves[leave_type] = {
                                'name': leave_type,
                                'sequence': 5,
                                'code': leave_type,
                                'number_of_days': 1.0,
                                'number_of_hours': working_hours_on_day,
                                'contract_id': contract.id,
                            }

The number_of_days and number_of_hours should be the actual value in the leave request.