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[Manuel Requena <manuel.requena@xxxxxxxxx>]

Public bug reported:

I'm following the Horizon tutorial and the definition of the URL pattern in [1] seems to be wrong. The text says:
"Replace the existing url pattern with the following line:
url(r'^\?tab=mypanel_tabs__tab$',
    views.IndexView.as_view(), name='mypanel_tabs'),
"

If I run the test server, I get the following error
Error reversing absolute URL for <Panel: mypanel>: Reverse for 'index' with arguments '()' and keyword arguments '{}' not found. 0 pattern(s) tried: []
...
  File "/var/data/testing-horizon/git-repos/horizon/.venv/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 456, in _reverse_with_prefix
    (lookup_view_s, args, kwargs, len(patterns), patterns))
NoReverseMatch: Reverse for 'index' with arguments '()' and keyword arguments '{}' not found. 0 pattern(s) tried: []

If I change the url pattern with the following:
    url(r'^$', 
        views.IndexView.as_view(), name='index'),

then the new MyDashboard/Mypanel works.

[1]
http://docs.openstack.org/developer/horizon/topics/tutorial.html#urls

** Affects: horizon
     Importance: Undecided
         Status: New


** Tags: documentation

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https://bugs.launchpad.net/bugs/1427758

Title:
  Wrong url pattern in Horizon tutorial

Status in OpenStack Dashboard (Horizon):
  New

Bug description:
  I'm following the Horizon tutorial and the definition of the URL pattern in [1] seems to be wrong. The text says:
  "Replace the existing url pattern with the following line:
  url(r'^\?tab=mypanel_tabs__tab$',
      views.IndexView.as_view(), name='mypanel_tabs'),
  "

  If I run the test server, I get the following error
  Error reversing absolute URL for <Panel: mypanel>: Reverse for 'index' with arguments '()' and keyword arguments '{}' not found. 0 pattern(s) tried: []
  ...
    File "/var/data/testing-horizon/git-repos/horizon/.venv/local/lib/python2.7/site-packages/django/core/urlresolvers.py", line 456, in _reverse_with_prefix
      (lookup_view_s, args, kwargs, len(patterns), patterns))
  NoReverseMatch: Reverse for 'index' with arguments '()' and keyword arguments '{}' not found. 0 pattern(s) tried: []

  If I change the url pattern with the following:
      url(r'^$', 
          views.IndexView.as_view(), name='index'),

  then the new MyDashboard/Mypanel works.

  [1]
  http://docs.openstack.org/developer/horizon/topics/tutorial.html#urls

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