fixes #1337

app/controllers/moderator/post/posts_controller.rb

@@ -35,14 +35,14 @@ module Moderator
       def ban
         @post = ::Post.find(params[:id])
         if params[:commit] == "Ban"
-          @post.update_column(:is_banned, true)
+          @post.ban!
         end
         redirect_to(post_path(@post), :notice => "Post was banned")
       end
 
       def unban
         @post = ::Post.find(params[:id])
-        @post.update_attribute(:is_banned, false)
+        @post.unban!
         redirect_to(post_path(@post), :notice => "Post was unbanned")
       end
     end

app/models/post.rb

@@ -797,6 +797,16 @@ class Post < ActiveRecord::Base
       destroy
     end
 
+    def ban!
+      update_column(:is_banned, true)
+      ModAction.create(:description => "banned post ##{id}")
+    end
+
+    def unban!
+      update_column(:is_banned, false)
+      ModAction.create(:description => "unbanned post ##{id}")
+    end
+
     def delete!(options = {})
       if is_status_locked?
         self.errors.add(:is_status_locked, "; cannot delete post")