CODEWITHSUNDEEP
django
Prometheus
Prometheus

Reputation: 33655

Error NoReverseMatch on URL

Can someone explain what this error means and how to solve?

This is the error message:

**NoReverseMatch at /contacts/group/new/ Reverse for ''group_list'' with arguments '()' and keyword arguments '{}' not found.**

the urls.py

urlpatterns = patterns('',


             url(r'^$', 'contacts.views.home', name="group_list"),

             (r'^group/new/$', 'contacts.views.group', {}, 'group_new'),
             (r'^group/edit/(?P<id>\d+)/$', 'contacts.views.group', {}, 'group_edit'),



)

the template.py

  <li>
   <a href="{% url 'group_list' %}">
      <i class="icon-group"></i>
       <span>Contacts</span>
</a>
</li>

Upvotes: 0

Views: 139

Answers (1)

Brandon Taylor
Brandon Taylor

Reputation: 34593

You can clean your patterns up a bit by leveraging the prefix argument:

urlpatterns = patterns('contacts.views',
    url(r'^group/edit/(?P<id>\d+)/$', 'group', name='group_edit'),
    url(r'^group/new/$', 'group', name='group_new'),
    url(r'^$', 'home', name="group_list"),
)

and when you use the url template tag, just provide the name of the pattern, instead of handing in a string literal to the function:

{% url group_list %}

Since patterns are matched in order, I would recommend putting the most specific patterns first, otherwise you might get some unexpected behavior.

Upvotes: 2

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