ids = ids[0]
palier = self.read(cr, uid, ids, ['date_plan_deb', 'date_plan_fin', 'state'], context)
if palier['state'] != 'cree':
ids = ids[0]
palier = self.read(cr, uid, ids, ['date_plan_deb', 'date_plan_fin', 'state'], context)
if palier['state'] != 'cree':