Roadmap: IndexError: list index out of range

[Massimo]

Hi,

we migrated to latest stable Trac 1.2.3 and last svn trunc version TracHours-0.7.3.dev0-py2.7.egg. We also have all depencencies required.

Adding hours to tickets works, but /roadmap now fails with:

IndexError: list index out of range

File "/usr/lib64/python2.7/site-packages/trac/web/main.py", line 647, in _dispatch_request
  dispatcher.dispatch(req)
File "/usr/lib64/python2.7/site-packages/trac/web/main.py", line 268, in dispatch
  iterable=chrome.use_chunked_encoding)
File "/usr/lib64/python2.7/site-packages/trac/web/chrome.py", line 1170, in render_template
  encoding='utf-8')
File "/usr/lib64/python2.7/site-packages/genshi/core.py", line 184, in render
  return encode(generator, method=method, encoding=encoding, out=out)
File "/usr/lib64/python2.7/site-packages/genshi/output.py", line 58, in encode
  for chunk in iterator:
File "/usr/lib64/python2.7/site-packages/genshi/output.py", line 350, in __call__
  for kind, data, pos in stream:
File "/usr/lib64/python2.7/site-packages/genshi/output.py", line 829, in __call__
  for kind, data, pos in stream:
File "/usr/lib64/python2.7/site-packages/genshi/output.py", line 669, in __call__
  for kind, data, pos in stream:
File "/usr/lib64/python2.7/site-packages/genshi/output.py", line 774, in __call__
  for kind, data, pos in chain(stream, [(None, None, None)]):
File "/usr/lib64/python2.7/site-packages/genshi/output.py", line 594, in __call__
  for ev in stream:
File "/usr/lib64/python2.7/site-packages/genshi/core.py", line 289, in _ensure
  for event in stream:
File "/usr/lib64/python2.7/site-packages/genshi/core.py", line 289, in _ensure
  for event in stream:
File "/usr/lib64/python2.7/site-packages/trac/web/chrome.py", line 1437, in _strip_accesskeys
  for kind, data, pos in stream:
File "/usr/lib64/python2.7/site-packages/genshi/core.py", line 289, in _ensure
  for event in stream:
File "/usr/lib64/python2.7/site-packages/trac/web/chrome.py", line 1426, in _generate
  for kind, data, pos in stream:
File "/usr/lib64/python2.7/site-packages/genshi/core.py", line 289, in _ensure
  for event in stream:
File "/usr/lib64/python2.7/site-packages/genshi/core.py", line 289, in _ensure
  for event in stream:
File "/usr/lib64/python2.7/site-packages/genshi/filters/transform.py", line 706, in _unmark
  for mark, event in stream:
File "/usr/lib64/python2.7/site-packages/genshi/filters/transform.py", line 1172, in __call__
  for subevent in self._inject():
File "/usr/lib64/python2.7/site-packages/genshi/filters/transform.py", line 1063, in _inject
  for event in _ensure(content):
File "/usr/lib64/python2.7/site-packages/genshi/core.py", line 272, in _ensure
  stream = iter(stream)
File "build/bdist.linux-x86_64/egg/trachours/web_ui.py", line 124, in __iter__
  milestone = self.buffer.events[3][1]

[EmeCas]

Unfortunately, I could not reproduce your issue with the provide information, I'm wonder what Trac version you had upgraded from.

[Massimo]

We just migrated from 1.2 to 1.2.3. Then we migrated also postgres 9.3 to 11. However we did not use TracHours before. So I can't say if the issue is new. Here is the list of active plugins:

ComponentDependencyPlugin-0.1-py2.7.egg
FieldTooltip-0.7.3-py2.7.egg
IncludeSource-0.4-py2.7.egg
SimpleMultiProject-0.6.0.dev0-py2.7.egg
ticketsboardplugin-1.2.3.dev0-py2.7.egg
TicketSidebarProvider-0.0-py2.7.egg
TracAccountManager-0.5.1.dev0-py2.7.egg
TracAutocompleteUsersPlugin-0.4.6.dev0-py2.7.egg
TracCodeReviewer-1.0.0.dev0-py2.7.egg
TracDiscussion-1.2.dev0-py2.7.egg
TracDynamicFields-2.3.0.dev0-py2.7.egg
TracEstimationTools-0.5.0.dev0-py2.7.egg
TracFullBlogPlugin-0.1.6.3-py2.7.egg
TracHours-0.7.3.dev0-py2.7.egg
TracHtmlNotificationPlugin-0.12.0.1-py2.7.egg
TracIncludeMacro-3.2.0.dev0-py2.7.egg
Trac_jsGantt-1.2.0.0.dev0-py2.7.egg
trac_NewTicketLikeThisPlugin-0.2-py2.7.egg
TracQuiet-1.2.1.dev0-py2.7.egg
TracSQLHelper-0.3.1-py2.7.egg
TracSubTicketsPlugin-0.5.4.dev0-py2.7.egg
TracTicketFieldsLayoutPlugin-0.12.0.5-py2.7.egg
TracWikiExtras-1.3.1.dev0-py2.7.egg
TracWorkflowAdmin-0.12.0.5-py2.7.egg
TracXMLRPC-1.1.8.dev0-py2.7.egg
WikiAutoComplete-1.4.dev0-py2.7.egg
XMailPlugin-0.4.3-py2.7.egg

Disabling the component TracHoursRoadmapFilter makes the Roadmap work again.

[EmeCas]

is there a chance you have a milestone with corrupted/incomplete information in your database, something like the milestone name set to NULL?

[Massimo]

Right, there was a Milestone that was valid named but had no single ticket belonging to that milestone. After deleting that Milestone the /roadmap is working. As this is a common situation please adapt the plugin accordingly.

[EmeCas]

Milestones that does not have tickets work for me perfectly at the roadmap. May you create a new milestone and try again?

[Ryan J Ollos]

It can be challenging to find the source of the problem on a system with so many plugins installed. SimpleMultiProjectPlugin is where I would look first.

[EmeCas]

In 17383:

TracHours 0.7.4dev: Add validations

Fixes #13565.

[Ryan J Ollos]

r17383:

• import logging is not needed
• self.buffer.events.__len__() -> len(self.buffer.events)
• self.buffer.events[3].__len__() -> len(self.buffer.events[3])

[EmeCas]

Thanks

Replying to Ryan J Ollos:

r17383:

• import logging is not needed
• self.buffer.events.__len__() -> len(self.buffer.events)
• self.buffer.events[3].__len__() -> len(self.buffer.events[3])

[Ryan J Ollos]

Thank you for applying the changes in r17388.