From f95328a2988a8cbb949f0123379c52120f7e4589 Mon Sep 17 00:00:00 2001
From: Samuel Clay <samuel@ofbrooklyn.com>
Date: Fri, 28 Jun 2013 19:17:07 -0700
Subject: [PATCH] Chunking those mondo zadd calls.

---
 apps/reader/models.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/apps/reader/models.py b/apps/reader/models.py
index 1e72c4861..7a42a535c 100644
--- a/apps/reader/models.py
+++ b/apps/reader/models.py
@@ -263,7 +263,8 @@ class UserSubscription(models.Model):
         if not story_hashes:
             return [], []
         
-        r.zadd(ranked_stories_keys, **dict(story_hashes))
+        for story_hash_group in chunks(story_hashes, 100):
+            r.zadd(ranked_stories_keys, **dict(story_hash_group))
         story_hashes = range_func(ranked_stories_keys, offset, limit)
 
         if read_filter == "unread":