[FIX] hr_payroll: month name in the user language

In the payslip name, the month name was set
within the server locale, rather than the
user language.

Therefore, if you had your server default locale
in English but your user in French, the
month name was displayed in English anyway.

opw-692590

addons/hr_payroll/hr_payroll.py

@@ -1,6 +1,7 @@
 #-*- coding:utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+import babel
 import time
 from datetime import date
 from datetime import datetime
@@ -637,7 +638,7 @@ class hr_payslip(osv.osv):
         ttyme = datetime.fromtimestamp(time.mktime(time.strptime(date_from, "%Y-%m-%d")))
         employee_id = empolyee_obj.browse(cr, uid, employee_id, context=context)
         res['value'].update({
-                    'name': _('Salary Slip of %s for %s') % (employee_id.name, tools.ustr(ttyme.strftime('%B-%Y'))),
+                    'name': _('Salary Slip of %s for %s') % (employee_id.name, tools.ustr(babel.dates.format_date(date=ttyme, format='MMMM-y', locale=self.env.context.get('lang', 'en_US')))),
                     'company_id': employee_id.company_id.id
         })
 
@@ -696,7 +697,7 @@ class hr_payslip(osv.osv):
         date_to = self.date_to
 
         ttyme = datetime.fromtimestamp(time.mktime(time.strptime(date_from, "%Y-%m-%d")))
-        self.name = _('Salary Slip of %s for %s') % (employee_id.name, tools.ustr(ttyme.strftime('%B-%Y')))
+        self.name = _('Salary Slip of %s for %s') % (employee_id.name, tools.ustr(babel.dates.format_date(date=ttyme, format='MMMM-y', locale=self.env.context.get('lang', 'en_US'))))
         self.company_id = employee_id.company_id
 
         if not self.env.context.get('contract') or not self.contract_id: