[fix] error on SO creation

models/sale_order.py

@@ -70,7 +70,7 @@ class SaleOrderPcaFae(models.Model):
     # ------------------------------------------------------
     # Override ORM
     # ------------------------------------------------------
-    @api.multi
+    @api.model
     def create(self, vals):
         """
         Crée automatiquement une ligne PCA/FAE sur le devis
@@ -78,8 +78,8 @@ class SaleOrderPcaFae(models.Model):
         res = super(SaleOrderPcaFae, self).create(vals)
         company_current_year = datetime(
             datetime.now().year,
-            self.company_id.fiscalyear_last_month,
-            self.company_id.fiscalyear_last_day
+            self.env.user.company_id.fiscalyear_last_month,
+            self.env.user.company_id.fiscalyear_last_day
         )
         date_order = datetime.strptime(res.create_date, '%Y-%m-%d %H:%M:%S')
         if date_order > company_current_year: