add time in html

lib/msgslice.py

@@ -0,0 +1,31 @@
+#!/usr/bin/env python2
+# -*- coding: UTF-8 -*-
+# File: msgslice.py
+# Date: Mon Dec 22 22:24:32 2014 +0800
+# Author: Yuxin Wu <[email protected]>
+
+class MessageSlicer(object):
+    """ Separate messages into slices by time.
+        A new day always begins a new slice.
+    """
+    def __init__(self, diff_thres=5 * 60):
+        self.diff_thres = diff_thres
+
+    def slice(self, msgs):
+        ret = []
+        now = []
+        for m in msgs:
+            if len(now) == 0:
+                now.append(m)
+                continue
+            nowtime, lasttime = m.createTime, now[-1].createTime
+            if nowtime.date() == lasttime.date() and \
+               (nowtime - lasttime).seconds < self.diff_thres:
+                now.append(m)
+                continue
+
+            ret.append(now)
+            now = []
+        return ret
+
+