In odoo 9, I am able to use this function : 

class payslip_report_pdf(report_sxw.rml_parse):

    _name = 'payslip_report_pdf'

    _description = "Employee Payslips"

 

    def __init__(self, cr, uid, name, context):

        super(payslip_report_pdf, self).__init__(cr, uid, name, context=context)

        self.localcontext.update({

            'payslips': self.get_payslip_data(cr, uid, context=context),

            'get_payslip_lines': self.get_payslip_lines,

            'get_total_by_rule_category': self.get_total_by_rule_category,

            })

    def get_payslip_data(self, cr, uid, context=None):

        retval = {}

        payslip_obj = self.pool.get('hr.payslip')

        payslip_ids = context.get('active_ids')

        payslips = payslip_obj.browse(cr, uid, payslip_ids, context=context)

        for payslip in payslips:

            sen_yr, sen_mon, sen_day = self.pool.get('hr.employee')\

                .get_seniority_ymd(cr, uid, payslip.employee_id.id, context=context)

            seniority = '%dA, %dM, %dJ' % (sen_yr, sen_mon, sen_day)

 

            # Leaves

            leave_obj = self.pool.get('hr.holidays')

            leave_ids = leave_obj.search(cr, uid,

                [('employee_id', '=', payslip.employee_id.id)], context=context)

            leaves = leave_obj.browse(cr, uid, leave_ids, context=context)

            leaves_acquired = sum([x.number_of_days for x in leaves \

                if x.state == 'validate' \

                and x.type == 'add'\

                and x.holiday_status_id.limit == False]) or 0.0

            holidays = [x for x in leaves \

                if x.state == 'validate' \

                and x.type == 'remove' \

                and x.date_from.split()[0] >= payslip.date_from.split()[0] \

                and x.date_to.split()[0] <= payslip.date_to.split()[0]]

            # leaves_taken = sum([x.number_of_days for x in leaves \

            #     if x.state == 'validate' \

            #     and x.type == 'remove'\

            #     and x.holiday_status_id.limit == False])

            leaves_remaining = sum([x.number_of_days for x in leaves\

                if x.state == 'validate' \

                and x.holiday_status_id.limit == False]) or 0.0

 

 

            retval[payslip] = {

                # 'lines': lines,

                'seniority': seniority,

                'leaves_acquired': leaves_acquired,

                # 'leaves_taken': leaves_taken,

                'leaves_remaining': leaves_remaining,

                'holidays': holidays,

            }

            retval[payslip].update(self.get_salarial_data(cr, uid, payslip,

                yearly=False, context=context))

            # Yearly stuff

            jan_1 = payslip.date_from.split('-')[0] + '-01-01'

            slip_end = payslip.date_to.split()[0]

            yr_slip_ids = payslip_obj.search(cr, uid,

                [('employee_id', '=', payslip.employee_id.id),

                ('date_from', '>=', jan_1),

                ('date_to', '<=', slip_end)], context=context)

            yearly_data = dict.fromkeys(['gross_year',

                'salarial_costs_year',

                'patronal_costs_year',

                'net_salary_year',

                'benefits_in_kind_year',

                'worked_hours_year',

                'worked_days_year'], 0)

            for yr_slip in payslip_obj.browse(cr, uid, yr_slip_ids, context=context):

                data = self.get_salarial_data(cr, uid, yr_slip, yearly=True,

                    context=context)

                for key in data.keys():

                    yearly_data[key] += data.get(key, 0)

            retval[payslip].update(yearly_data)

 

        return retval

and i call it in my costum report like this.

<span t-esc="payslips[o]['worked_days']"/>

how can i transform it to use it in odoo 10? Thanks.