toulouse-maelis: use a basket id variable (#86373)

passerelle/contrib/toulouse_maelis/models.py

@@ -4016,13 +4016,14 @@ class ToulouseMaelis(BaseResource, HTTPResource):
     )
     def validate_basket(self, request, post_data, NameID=None, family_id=None):
         family_id = family_id or self.get_link(NameID).family_id
-        self.get_basket_raw(family_id, post_data['basket_id'])
+        basket_id = post_data['basket_id']
+        self.get_basket_raw(family_id, basket_id)
 
         response = self.call(
             'Activity',
             'validateBasket',
             validateBasketRequestBean={
-                'idBasket': post_data['basket_id'],
+                'idBasket': basket_id,
             },
         )
 
@@ -4044,7 +4045,7 @@ class ToulouseMaelis(BaseResource, HTTPResource):
         if not invoice:
             self.logger.error(
                 "Pas de facture à la validation du panier '%s' sur la famille '%s'",
-                post_data['basket_id'],
+                basket_id,
                 family_id,
             )
         return {'data': response}