Tickets can't be moved and re-ordered within the backlog

[Ryan J Ollos]

In Trac 0.11, the tickets cannot be moved and re-ordered in the backlog. There is an error in the javascript error console:

Uncaught TypeError: Object #<Object> has no method 'outerWidth' 

The plugin is using jQuery UI 1.7.2, which requires jQuery 1.3 or possibly 1.3.2 (the version available on the ​downloads page is 1.7.3 which requires 1.3.2). Trac 0.11 provides jQuery 1.2.3.

[Ryan J Ollos]

Trac 0.11.1 provides jQuery 1.2.6, which jQuery UI 1.6 is compatible with. Version 1.2.6 is the minimum required jQuery for jQuery UI 1.5 through 1.6. Trac 0.11.0 provides jQuery 1.2.3. I can't find a version of jQuery UI older than 1.5, so I'll set a minimum required Trac version of 0.11.1 for the BacklogPlugin.

[Ryan J Ollos]

(In [12040]) Refs #9800, #10331: Added minimum required Trac version.

[Ryan J Ollos]

#10732 is a related ticket for the AdminEnumListPlugin.

[Ryan J Ollos]

(In [12488]) Fixes #10325, Refs #10331, #10333:

• Added 3-Clause BSD license text.
• jQuery UI 1.8.23 is used in Trac 0.12 and later. jQuery UI 1.6 is used in Trac 0.11.1 through Trac 0.11.7 (Trac 0.11.1 is the minimum version supported by the plugin).
• Renamed BACKLOGS_VIEW permission to BACKLOG_VIEW.
• Combined code in backlog-rw.js and backlog-ro.js to backlog.js.
• Added skeleton code for an admin panel.
• Added skeleton for unit tests.

[Jun Omae]

I believe that the checking version code in [12488], if trac_version > 0.12:, does not work.

$ ~/venv/trac/0.11.7/bin/python
Python 2.4.3 (#1, Jun 18 2012, 08:55:31)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-52)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from trac import __version__
>>> __version__
'0.11.7'
>>> __version__ > 0.12
True
>>>

We can use pkg_resouces.parse_version for comparison the versions. See also ​http://packages.python.org/distribute/pkg_resources.html#parsing-utilities and ​trac:source:trunk/trac/mimeview/tests/pygments.py?rev=11493#L84.

backlog/web_ui.py

@@ -105 +105 @@
             req.redirect(req.href.backlog(backlog_id))
 
         # TODO: use jQuery UI in Trac 1.0
-        if trac_version > 0.12:
+        from pkg_resources import parse_version
+        if parse_version(trac_version) >= parse_version('0.12'):
             add_script(req, 'backlog/js/jquery-ui-1.8.23.custom.min.js')
         else:
             add_script(req, 'backlog/js/jquery-ui-1.6.custom.min.js')

[Ryan J Ollos]

Thanks, it never seemed quite right to me, so I'm happy to know a better way now. I'll apply this patch and also take a look at #10732 this weekend.

[Jun Omae]

(In [12717]) refs #10331: follow-up to [12488], use pkg_resources.parse_version to compare the version strings

[Jun Omae]

BTW, sortable widget works well with Trac 0.12.5, however, it doesn't work with Trac 0.11.7. I got the following on Firefox.

Timestamp: 2013-03-14 03:05:54
Error: TypeError: (intermediate value)(...) is not a function
Source File: http://localhost:3000/chrome/backlog/js/jquery-ui-1.6.custom.min.js
Line: 24

To replace with ​http://ajax.googleapis.com/ajax/libs/jqueryui/1.6/jquery-ui.min.js, it works.

[Ryan J Ollos]

Ah, thanks. I guess we should pull down a new copy of jQuery 1.6. Feel free to commit any changes if you have something staged locally, and I'll try to get around to this eventually ;)

[Jun Omae]

(In [12795]) refs #10331: use ​http://ajax.googleapis.com/ajax/libs/jqueryui/1.6/jquery-ui.min.js for Trac 0.11.x to avoid javascript errors with jquery-ui-1.6.custom.min.js.

[Jun Omae]

(In [12796]) refs #10331: call Chrome.add_jquery_ui on Trac 1.0+ instead using the bundled jQuery UI files