From 4fe7137a14a28aa2d9ad80ee2ac30e3700195636 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Fri, 21 Apr 2017 10:17:56 +0200
Subject: [PATCH] Test if get_supply_dates is defined on PurchaseRequest

The method is defined in stock_supply but the model in purchase_request, so we
can have the model without the method.

issue6445
review41261002
---
 sale.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sale.py b/sale.py
index 549696ec5a..c74cffce2a 100644
--- a/sale.py
+++ b/sale.py
@@ -57,7 +57,8 @@ class Sale:
         except KeyError:
             PurchaseRequest = None
 
-        if PurchaseRequest and product.purchasable:
+        if (getattr(PurchaseRequest, 'get_supply_dates', None)
+                and product.purchasable):
             return PurchaseRequest.get_supply_dates(product)[0]
         else:
             # TODO compute supply date for production