Sign In/Out by Project total amount not computed

After some investigation, I found that the ''journal_id' value is mandatory for on_change_unit_amount(). I correct _write() function in hr_timesheet_sign_in_sign_out.py

Original function

    def _write(self, cr, uid, data, emp_id, context=None):
        timesheet_obj = self.pool.get('hr.analytic.timesheet')
        emp_obj = self.pool.get('hr.employee')
        if context is None:
            context = {}
        hour = (time.mktime(time.strptime(data['date'] or time.strftime('%Y-%m-%d %H:%M:%S'), '%Y-%m-%d %H:%M:%S')) -
            time.mktime(time.strptime(data['date_start'], '%Y-%m-%d %H:%M:%S'))) / 3600.0
        minimum = data['analytic_amount']
        if minimum:
            hour = round(round((hour + minimum / 2) / minimum) * minimum, 2)
        res = timesheet_obj.default_get(cr, uid, ['product_id','product_uom_id'], context=context)

        if not res['product_uom_id']:
            raise osv.except_osv(_('User Error!'), _('Please define cost unit for this employee.'))
 ** up = timesheet_obj.on_change_unit_amount(cr, uid, False, res['product_id'], hour,False, res['product_uom_id'])['value']

        res['name'] = data['info']
        res['account_id'] = data['account_id'].id
        res['unit_amount'] = hour
        emp_journal = emp_obj.browse(cr, uid, emp_id, context=context).journal_id
        res['journal_id'] = emp_journal and emp_journal.id or False
        res.update(up)
        up = timesheet_obj.on_change_account_id(cr, uid, [], res['account_id']).get('value', {})
        res.update(up)
        return timesheet_obj.create(cr, uid, res, context=context)

Corrected function

    def _write(self, cr, uid, data, emp_id, context=None):
        timesheet_obj = self.pool.get('hr.analytic.timesheet')
        emp_obj = self.pool.get('hr.employee')
        if context is None:
            context = {}
        hour = (time.mktime(time.strptime(data['date'] or time.strftime('%Y-%m-%d %H:%M:%S'), '%Y-%m-%d %H:%M:%S')) -
            time.mktime(time.strptime(data['date_start'], '%Y-%m-%d %H:%M:%S'))) / 3600.0
        minimum = data['analytic_amount']
        if minimum:
            hour = round(round((hour + minimum / 2) / minimum) * minimum, 2)
        res = timesheet_obj.default_get(cr, uid, ['product_id','product_uom_id'], context=context)

        if not res['product_uom_id']:
            raise osv.except_osv(_('User Error!'), _('Please define cost unit for this employee.'))

        res['name'] = data['info']
        res['account_id'] = data['account_id'].id
        res['unit_amount'] = hour
        emp_journal = emp_obj.browse(cr, uid, emp_id, context=context).journal_id
        res['journal_id'] = emp_journal and emp_journal.id or False
 ** up = timesheet_obj.on_change_unit_amount(cr, uid, False, res['product_id'], hour,False, res['product_uom_id'], res['journal_id'])['value']
        res.update(up)
        up = timesheet_obj.on_change_account_id(cr, uid, [], res['account_id']).get('value', {})
        res.update(up)
        return timesheet_obj.create(cr, uid, res, context=context)