Milestone not start with TypeError

[okamototk]

With trac 0.12, milestone is not started with TypeError. Following code resolve the problem.

def get_startdate_for_milestone(db, milestone):
    cursor = db.cursor()
    cursor.execute("SELECT started FROM milestone WHERE name = %s", [milestone])
    row = cursor.fetchone()
-    if(row and row[0]!=0):
-        return datetime.fromtimestamp(row[0])
-    else:
-        return None
+    try:
+        if(row and row[0]!=0):
+            return datetime.fromtimestamp(row[0])
+    except TypeError:
+        pass
+    return None