Burndown: TypeError: a float is required

[peter [at] motally {com}]

How to Reproduce

While doing a GET operation on /burndown, Trac issued an internal error.

The milestone is the default. I go to the burndown page and select 'Start Milestown' and get this error.

Request parameters:

{'selected_component': u'All Components',
 'selected_milestone': u'Sprint 7',
 'start': u'Start Milestone'}

User Agent was: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.14) Gecko/2009090217 Ubuntu/9.04 (jaunty) Firefox/3.0.14

System Information

Trac	0.11.1
Python	2.5.2 (r252:60911, Jan 4 2009, 18:00:02) [GCC 4.3.2]
setuptools	0.6c9
SQLite	3.5.9
pysqlite	2.4.1
Genshi	0.5.1
mod_python	3.3.1
Pygments	0.10
Subversion	1.5.1 (r32289)
RPC	1.0.6
jQuery:	1.2.6

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/trac/web/main.py", line 423, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.5/site-packages/trac/web/main.py", line 197, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib/python2.5/site-packages/TracBurndown-1.9.1-py2.5.egg/burndown/burndown.py", line 166, in process_request
    self.start_milestone(db, selected_milestone['name'])
  File "/usr/lib/python2.5/site-packages/TracBurndown-1.9.1-py2.5.egg/burndown/burndown.py", line 233, in start_milestone
    startdate = dbhelper.get_startdate_for_milestone(db, milestone)
  File "/usr/lib/python2.5/site-packages/TracBurndown-1.9.1-py2.5.egg/burndown/dbhelper.py", line 96, in get_startdate_for_milestone
    return datetime.fromtimestamp(row[0])
TypeError: a float is required

[Felix Schwarz <felix.schwarz@…>]

WrongTrac (see ​ScrumBurndownPlugin).