From 7e2c11d45c0d225693df53f07d3c8328d9e61acb Mon Sep 17 00:00:00 2001
From: Damien Elmes <git@ichi2.net>
Date: Sat, 25 Aug 2012 22:04:51 +0900
Subject: [PATCH] honour period limit in answer buttons graph

---
 anki/stats.py | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/anki/stats.py b/anki/stats.py
index f33e970ef..9a6f63533 100644
--- a/anki/stats.py
+++ b/anki/stats.py
@@ -481,9 +481,23 @@ select count(), avg(ivl), max(ivl) from cards where did in %s and queue = 2""" %
                 "</td></tr></table></center>")
 
     def _eases(self):
+        lims = []
         lim = self._revlogLimit()
         if lim:
-            lim = "where " + lim
+            lims.append(lim)
+        if self.type == 0:
+            days = 30
+        elif self.type == 1:
+            days = 365
+        else:
+            days = None
+        if days is not None:
+            lims.append("id > %d" % (
+                (self.col.sched.dayCutoff-(days*86400))*1000))
+        if lims:
+            lim = "where " + " and ".join(lims)
+        else:
+            lim = ""
         return self.col.db.all("""
 select (case
 when type in (0,2) then 0