Fix incorrect previous_id setter.

nanaya · Nov 20, 2014 · 166f72c · 166f72c
1 parent 97ca6cd
commit 166f72c
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/app/models/history_change.rb b/app/models/history_change.rb
@@ -78,7 +78,11 @@ def next
   end
 
   def set_previous
-    self.previous = self.class.order(:id => :desc).find_by(:table_name => table_name, :remote_id => remote_id, :column_name => column_name)
+    self.previous = self.class
+                      .where(:table_name => table_name, :remote_id => remote_id, :column_name => column_name)
+                      .where("id < ?", id)
+                      .order(:id => :desc)
+                      .take
     self.save!
   end
 end