edit link for original forum post goes to edit topic action

app/controllers/forum_topics_controller.rb

@@ -26,6 +26,7 @@ class ForumTopicsController < ApplicationController
   def show
     @forum_topic = ForumTopic.find(params[:id])
     @forum_posts = ForumPost.search(:topic_id => @forum_topic.id).order("forum_posts.id").paginate(params[:page])
+    @forum_posts.all
     respond_with(@forum_topic)
   end
   

app/models/forum_post.rb

@@ -118,6 +118,10 @@ class ForumPost < ActiveRecord::Base
     ((ForumPost.where("topic_id = ? and created_at <= ?", topic_id, created_at).count) / Danbooru.config.posts_per_page.to_f).ceil
   end
   
+  def is_original_post?
+    ForumPost.exists?(["id = ? and id = (select _.id from forum_posts _ where _.topic_id = ? order by _.id asc limit 1)", id, topic_id])
+  end
+  
   def build_response
     dup.tap do |x|
       x.body = x.quoted_response

app/views/forum_posts/_forum_post.html.erb

@@ -27,7 +27,11 @@
           <% end %>
         <% end %>
         <% if forum_post.editable_by?(CurrentUser.user) %>
-          <li><%= link_to "Edit", edit_forum_post_path(forum_post.id) %></li>
+          <% if forum_post.is_original_post? %>
+            <li><%= link_to "Edit", edit_forum_topic_path(forum_post.topic) %></li>
+          <% else %>
+            <li><%= link_to "Edit", edit_forum_post_path(forum_post.id) %></li>
+          <% end %>
         <% end %>
         <li><%= link_to "Parent", forum_topic_path(forum_post.topic, :page => forum_post.forum_topic_page) %></li>
         <li><%= link_to "Permalink", forum_post_path(forum_post) %></li>

app/views/forum_topics/_secondary_links.html.erb

@@ -9,9 +9,9 @@
       <li>|</li>
       <li><%= link_to "Reply", new_forum_post_path(:topic_id => @forum_topic.id) %></li>
       <% if !@forum_topic.new_record? && @forum_topic.editable_by?(CurrentUser.user) %>
-        <li><%= link_to "Edit topic", edit_forum_topic_path(@forum_topic) %></li>
+        <li><%= link_to "Edit", edit_forum_topic_path(@forum_topic) %></li>
         <% if CurrentUser.is_moderator? %>
-          <li><%= link_to "Delete topic", forum_topic_path(@forum_topic), :remote => true, :method => :delete, :confirm => "Do you want to delete this forum topic?" %></li>
+          <li><%= link_to "Delete", forum_topic_path(@forum_topic), :remote => true, :method => :delete, :confirm => "Do you want to delete this forum topic?" %></li>
         <% end %>
       <% end %>
     <% end %>