private-topics.diff

diff --git a/app/policies/topic_policy.rb b/app/policies/topic_policy.rb
index c247c17..2b4bd00 100644
--- a/app/policies/topic_policy.rb
+++ b/app/policies/topic_policy.rb
@@ -11,7 +11,7 @@ class TopicPolicy < ApplicationPolicy
         user.present? && user.role?(:admin)
     end
 
-    def public?
-        Topic.all.visible_to(user)
+    def show?
+      user || record.public?
     end
 end
diff --git a/app/views/topics/index.html.erb b/app/views/topics/index.html.erb
index b77332b..9cf6745 100644
--- a/app/views/topics/index.html.erb
+++ b/app/views/topics/index.html.erb
@@ -1,4 +1,4 @@
-<% if policy(Topic).public? %>
+<% if policy(Topic.new).show? %>
 <h1>Topics</h1>
 
 <div class="row">
diff --git a/app/views/topics/show.html.erb b/app/views/topics/show.html.erb
index bbb0d07..f0305ae 100644
--- a/app/views/topics/show.html.erb
+++ b/app/views/topics/show.html.erb
@@ -1,4 +1,4 @@
-<% if policy(Topic).public? %>
+<% if policy(Topic.new).show? %>
 <h1><%= @topic.name %></h1>
 
 <% if policy(@topic).update? %>