[drupal-devel] [bug] Menu system requires a local task to have more than 1 child in order to create secondary local tasks

drumm drupal-devel at drupal.org
Wed Aug 10 20:58:39 UTC 2005

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 Project:      Drupal
 Version:      cvs
 Component:    menu system
 Category:     bug reports
 Priority:     normal
 Assigned to:  Anonymous
 Reported by:  andremolnar
 Updated by:   drumm
 Status:       patch (code needs work)


There are quite a few cases where the current behavior is desirable.
Modules often add local tasks to pages which were not made by the
module itself. This is helps the end UI to not resemble the underlying
modular structure.

The current de-facto standard is that a local task's title should not
be necessary to the page if it is the only local task by default and
should provide distinction from potential additional local tasks.

What is the user.module problem which led to this issue?


Previous comments:

Tue, 08 Feb 2005 21:49:34 +0000 : andremolnar

Attachment: http://drupal.org/files/issues/menu_inc_1a.patch (826 bytes)

This is a minor bug.  The menu system requires a local task to have more
than 1 child in order to create secondary local tasks.  In other words
if a local task only had 1 child, menu system would not create a
secondary local task menu item.

This patch fixes that with the addition of 1 character in the code.



Tue, 08 Feb 2005 22:52:09 +0000 : Dries

I'm pretty sure this patch would break some pages.  Some modules have a
tab and a subtab that show the same page.  The tracker page, for
example, relies on the fact that the subtab does not get shown when
there is only one subtab.  However, when there are two or more subtabs,
they are being visualized.  I guess this needs some more thought.


Tue, 08 Feb 2005 23:18:25 +0000 : andremolnar

hmmm... Well, I certainly don't think that this should be the expected
behaviour of the menu system.   A child menu item is a child menu item,
and I would expect that it show up if I create that child in hook_menu. 
When patching user.module it took me over half an hour to track down
this bug (a single missing character was easy to over look).

Nor do I personally think that the menu system should accomodate
exceptions of the sort described in tracker.module.  It should be the
module's job to decide when to create a local task in hook_menu using
logic local to the module.

IMHO if applying this 'breaks' modules - so be it.  It would force a
necissary code/logic improvement in those modules.



Wed, 09 Feb 2005 06:18:42 +0000 : Dries

Well, the problem is that the tracker module can't determine whether to
add the subtask.  It should only be added when another module adds a
second subtask.  I'll explore this some more.


Sun, 13 Mar 2005 18:55:26 +0000 : killes at www.drop.org

Dries doesn't like it as is.


Wed, 10 Aug 2005 17:19:03 +0000 : killes at www.drop.org

There is a patch after all.

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