UndefinedError: 'item' is undefined

[anonymous]

Just after crystalxtheme.* = enabled

Traceback (most recent call last):
  File "venvp27/lib/python2.7/site-packages/trac/web/main.py", line 684, in _send_error
    data, metadata)
  File "venvp27/lib/python2.7/site-packages/trac/web/chrome.py", line 1443, in render_template
    fragment, iterable, method)
  File "venvp27/lib/python2.7/site-packages/trac/web/chrome.py", line 1535, in _render_jinja_template
    iterable)
  File "venvp27/lib/python2.7/site-packages/trac/web/chrome.py", line 1656, in generate_template_stream
    return b''.join(generate())
  File "venvp27/lib/python2.7/site-packages/trac/web/chrome.py", line 1654, in generate
    for chunk in stream:
  File "venvp27/lib/python2.7/site-packages/jinja2/environment.py", line 1357, in __next__
    return self._next()
  File "venvp27/lib/python2.7/site-packages/jinja2/environment.py", line 1334, in _buffered_generator
    c = next(self._gen)
  File "venvp27/lib/python2.7/site-packages/jinja2/environment.py", line 1125, in generate
    yield self.environment.handle_exception()
  File "venvp27/lib/python2.7/site-packages/jinja2/environment.py", line 832, in handle_exception
    reraise(*rewrite_traceback_stack(source=source))
  File "venvp27/lib/python2.7/site-packages/trac/templates/error.html", line 95, in top-level template code
    <input type="submit" name="create" value="${_('Create')}" />
  File "venvp27/lib/python2.7/site-packages/trac/templates/layout.html", line 12, in top-level template code
    # import "macros.html" as jmacros with context
  File "venvp27/lib/python2.7/site-packages/crystalxtheme/templates/crystalx_theme.html", line 13, in top-level template code
    class="${classes(first_last(idx, chrome.nav[category]), active=item.active)}">${item.label}</li>
  File "venvp27/lib/python2.7/site-packages/jinja2/environment.py", line 471, in getattr
    return getattr(obj, attribute)
UndefinedError: 'item' is undefined

https://trac-hacks.org/ticket/14058#ticket

[figaro]

Duplicate of #13761?

[Jun Omae]

Exactly.

[anonymous]

Can be explained situation?

\lib\python2.7\site-packages\trac\templates\genshi\index.html - this is genshi

\lib\python2.7\site-packages\trac\templates\index.html - this is Jinja2 solution ?

[Ryan J Ollos]

It's not compatible with Trac 1.4 (Jinja). Someone needs to port the templates. See comment:2:ticket:13761.

[anonymous]

I see.. I'm looking some simple solution to have template like main trac.edgewall.org (as table in center with gray frame borders, and set sizes for this center). The BasicThemeEditorPlugin not working for me.

[anonymous]

Most of plugins have this type problem:

Collecting https://trac-hacks.org/browser/basicthemeeditorplugin?rev=18451
  Downloading https://trac-hacks.org/browser/basicthemeeditorplugin?rev=18451
     / 14 kB 248 kB/s
  ERROR: Cannot unpack file /tmp/pip-unpack-ESFr17/basicthemeeditorplugin (downloaded from /tmp/pip-req-build-nvoY1m, content-type: text/html;charset=utf-8); cannot detect archive format
ERROR: Cannot determine archive format of /tmp/pip-req-build-nvoY1m

In case I do install in manual. Sorry for off top here.

[Ryan J Ollos]

See TracPlugins#Fromsource.

$ pip install svn+https://trac-hacks.org/svn/basicthemeeditorplugin/trunk

Note that BasicThemeEditorPlugin may not be compatible with Trac 1.4. Check the tags on the wiki page. BasicThemeEditorPlugin is labeled with only the 0.11 tag. It might work with 1.4, but likely not.

[Ryan J Ollos]

Replying to anonymous:

I see.. I'm looking some simple solution to have template like main trac.edgewall.org (as table in center with gray frame borders, and set sizes for this center). The BasicThemeEditorPlugin not working for me.

Please ask on the ​trac:MailingList and someone can help with theme'ing your Trac install.

[anonymous]

In case it was instaled not working like in comment in your post. In my opinion to much plugins not working with Trac 1.4 as stable.. right? Then trac is limited to manage and configure to typical needs to usage.