stub in preview for bulk revert

app/models/post_approval.rb

@@ -1,12 +1,12 @@
 class PostApproval < ActiveRecord::Base
-	belongs_to :user
-	belongs_to :post
+  belongs_to :user
+  belongs_to :post
 
-	def self.prune!
-		where("created_at < ?", 1.month.ago).delete_all
-	end
+  def self.prune!
+    where("created_at < ?", 1.month.ago).delete_all
+  end
 
-	def self.approved?(user_id, post_id)
-		where(user_id: user_id, post_id: post_id).exists?
-	end
+  def self.approved?(user_id, post_id)
+    where(user_id: user_id, post_id: post_id).exists?
+  end
 end