Fix thumbnail appearing next to deleted comments

app/models/comment.rb

@@ -32,6 +32,10 @@ class Comment < ActiveRecord::Base
       where("score >= ?", user.comment_threshold)
     end
 
+    def undeleted
+      where("is_deleted = false")
+    end
+
     def post_tags_match(query)
       PostQueryBuilder.new(query).build(self.joins(:post)).reorder("")
     end

app/views/comments/index_by_comment.html.erb

@@ -5,6 +5,7 @@
     <div class="comments-for-post">
       <div class="list-of-comments">
         <% @comments.each do |comment| %>
+          <% if CurrentUser.is_moderator? || !comment.is_deleted? %>
             <div id="post_<%= comment.post.id %>" class="post <%= PostPresenter.preview_class(comment.post) %>" <%= PostPresenter.data_attributes(comment.post) %>>
               <div class="preview">
                 <% if comment.post.visible? %>
@@ -15,6 +16,7 @@
               <div class="clearfix"></div>
             </div>
           <% end %>
+        <% end %>
       </div>
     </div>
 

app/views/comments/index_by_post.html.erb

@@ -12,6 +12,7 @@
     <% end %>
 
     <% @posts.select {|x| x.visible?}.each do |post| %>
+      <% if CurrentUser.is_moderator? || post.comments.undeleted.exists? %>
         <div id="post_<%= post.id %>" class="post <%= PostPresenter.preview_class(post) %>" <%= PostPresenter.data_attributes(post) %>>
           <div class="preview">
             <% if post.visible? %>
@@ -22,6 +23,7 @@
           <div class="clearfix"></div>
         </div>
       <% end %>
+    <% end %>
 
     <%= numbered_paginator(@posts) %>
   </div>