From 3ea38b574915e3f8150d6dd10920b4d127070c75 Mon Sep 17 00:00:00 2001
From: Sam <sam.saffron@gmail.com>
Date: Fri, 8 Aug 2014 15:06:37 +1000
Subject: [PATCH] PERF: safeguard to ensure similarity search does not fire too
 much

---
 .../javascripts/discourse/controllers/composer.js.es6      | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/app/assets/javascripts/discourse/controllers/composer.js.es6 b/app/assets/javascripts/discourse/controllers/composer.js.es6
index d0f4c6e5cb5..305d610b029 100644
--- a/app/assets/javascripts/discourse/controllers/composer.js.es6
+++ b/app/assets/javascripts/discourse/controllers/composer.js.es6
@@ -223,6 +223,13 @@ export default Discourse.Controller.extend({
     if (body.length < Discourse.SiteSettings.min_body_similar_length ||
         title.length < Discourse.SiteSettings.min_title_similar_length) { return; }
 
+    // TODO pass the 200 in from somewhere
+    body = body.substr(0, 200);
+
+    // Done search over and over
+    if((title + body) === this.get('lastSimilaritySearch')) { return; }
+    this.set('lastSimilaritySearch', title + body);
+
     var messageController = this.get('controllers.composer-messages'),
         similarTopics = this.get('similarTopics');