From 39562aad7e2d5516a9e89e260c1b437923d484b1 Mon Sep 17 00:00:00 2001
From: Devin Howard <devin@callysto.com>
Date: Sat, 2 Jul 2016 09:44:32 +0800
Subject: [PATCH] if mappable is nil it causes an error

---
 app/policies/mapping_policy.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/policies/mapping_policy.rb b/app/policies/mapping_policy.rb
index 5826ccd4..ce8522df 100644
--- a/app/policies/mapping_policy.rb
+++ b/app/policies/mapping_policy.rb
@@ -16,7 +16,7 @@ class MappingPolicy < ApplicationPolicy
   end
 
   def show?
-    map_policy.show? && mappable_policy.show?
+    map_policy.show? && mappable_policy.try(:show?)
   end
 
   def create?