fixes danbooru#2208

Author: r888888888

Gemfile.lock

@@ -16,6 +16,7 @@ GIT
 
 GEM
   remote: http://gemcutter.org/
+  remote: https://rubygems.org/
   specs:
     actionmailer (4.1.0)
       actionpack (= 4.1.0)
@@ -139,6 +140,7 @@ GEM
     rack (1.5.2)
     rack-test (0.6.2)
       rack (>= 1.0)
+    radix62 (1.0.1)
     rails (4.1.0)
       actionmailer (= 4.1.0)
       actionpack (= 4.1.0)
@@ -193,6 +195,7 @@ GEM
       activesupport (>= 3.0)
       sprockets (~> 2.8)
     statistics2 (0.54)
+    streamio-ffmpeg (1.0.0)
     term-ansicolor (1.3.0)
       tins (~> 1.0)
     therubyracer (0.12.1)
@@ -256,6 +259,7 @@ DEPENDENCIES
   pg
   protected_attributes
   pry
+  radix62 (~> 1.0.1)
   rails (~> 4.1.0)
   rmagick
   ruby-imagespec!
@@ -267,6 +271,7 @@ DEPENDENCIES
   simplecov
   sprockets-rails
   statistics2
+  streamio-ffmpeg
   term-ansicolor
   therubyracer
   timecop

app/models/bulk_update_request.rb

@@ -39,8 +39,10 @@ def editable?(user)
   end
 
   def create_forum_topic
-    forum_topic = ForumTopic.create(:title => "[bulk] #{title}", :category_id => 1, :original_post_attributes => {:body => reason_with_link})
-    update_attribute(:forum_topic_id, forum_topic.id)
+    unless forum_topic_id
+      forum_topic = ForumTopic.create(:title => "[bulk] #{title}", :category_id => 1, :original_post_attributes => {:body => reason_with_link})
+      update_attribute(:forum_topic_id, forum_topic.id)
+    end
   end
 
   def reason_with_link

app/views/bulk_update_requests/_form.html.erb

@@ -20,6 +20,7 @@ mass update aaa -> bbb
     <%= dtext_field "bulk_update_request", "reason", :name => "Reason" %>
   </div>
 
+  <%= f.input :forum_topic_id, :hint => " (optional)" %>
   <%= f.button :submit, :value => "Submit" %>
   <%= dtext_preview_button "bulk_update_request", "reason" %>
 <% end %>