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问题:

How can I see the current urlpatterns that "reverse" is looking in?

I'm calling reverse in a view with an argument that I think should work, but doesn't. Any way I can check what's there and why my pattern isn't?

回答1:

If you want a list of all the urls in your project, first you need to install django-extensions, add it to your settings like this:

INSTALLED_APPS = (
...
'django_extensions',
...
)

And then, run this command in your terminal

./manage.py show_urls

For more information you can check the documentation.

回答2:

Try this:

from django.core.urlresolvers import get_resolver
get_resolver(None).reverse_dict.keys()

回答3:

There is a recipe on activestate

import urls

def show_urls(urllist, depth=0):
    for entry in urllist:
        print("  " * depth, entry.regex.pattern)
        if hasattr(entry, 'url_patterns'):
            show_urls(entry.url_patterns, depth + 1)

show_urls(urls.url_patterns)

回答4:

I am using the next command:

(Python3 + Django 1.10)

from django.core.management import BaseCommand
from django.conf.urls import RegexURLPattern, RegexURLResolver
from django.core import urlresolvers


class Command(BaseCommand):

    def add_arguments(self, parser):

        pass

    def handle(self, *args, **kwargs):

        urls = urlresolvers.get_resolver()
        all_urls = list()

        def func_for_sorting(i):
            if i.name is None:
                i.name = ''
            return i.name

        def show_urls(urls):
            for url in urls.url_patterns:
                if isinstance(url, RegexURLResolver):
                    show_urls(url)
                elif isinstance(url, RegexURLPattern):
                    all_urls.append(url)
        show_urls(urls)

        all_urls.sort(key=func_for_sorting, reverse=False)

        print('-' * 100)
        for url in all_urls:
            print('| {0.regex.pattern:20} | {0.name:20} | {0.lookup_str:20} | {0.default_args} |'.format(url))
        print('-' * 100)

Usage:

./manage.py showurls

Sample output:

----------------------------------------------------------------------------------------------------
| ^(.+)/$              |                      | django.views.generic.base.RedirectView | {} |
| ^(.+)/$              |                      | django.views.generic.base.RedirectView | {} |
| ^(.+)/$              |                      | django.views.generic.base.RedirectView | {} |
| ^(.+)/$              |                      | django.views.generic.base.RedirectView | {} |
| ^(.+)/$              |                      | django.views.generic.base.RedirectView | {} |
| ^(.+)/$              |                      | django.views.generic.base.RedirectView | {} |
| ^static\/(?P<path>.*)$ |                      | django.contrib.staticfiles.views.serve | {} |
| ^media\/(?P<path>.*)$ |                      | django.views.static.serve | {'document_root': '/home/wlysenko/.virtualenvs/programmerHelper/project/media'} |
| ^(?P<app_label>polls|snippets|questions)/$ | app_list             | apps.core.admin.AdminSite.app_index | {} |
| ^(?P<app_label>activity|articles|badges|books|comments|flavours|forum|marks|newsletters|notifications|opinions|polls|questions|replies|snippets|solutions|tags|testing|users|utilities|visits)/reports/$ | app_reports          | apps.core.admin.AdminSite.reports_view | {} |
| ^(?P<app_label>activity|articles|badges|books|comments|flavours|forum|marks|newsletters|notifications|opinions|polls|questions|replies|snippets|solutions|tags|testing|users|utilities|visits)/statistics/$ | app_statistics       | apps.core.admin.AdminSite.statistics_view | {} |
| articles/(?P<slug>[-\w]+)/$ | article              | apps.articles.views.ArticleDetailView | {} |
| book/(?P<slug>[-_\w]+)/$ | book                 | apps.books.views.BookDetailView | {} |
| category/(?P<slug>[-_\w]+)/$ | category             | apps.utilities.views.CategoryDetailView | {} |
| create/$             | create               | apps.users.views.UserDetailView | {} |
| delete/$             | delete               | apps.users.views.UserDetailView | {} |
| detail/(?P<email>\w+@[-_\w]+.\w+)/$ | detail               | apps.users.views.UserDetailView | {} |
| snippet/(?P<slug>[-_\w]+)/$ | detail               | apps.snippets.views.SnippetDetailView | {} |
| (?P<contenttype_model_pk>\d+)/(?P<pks_separated_commas>[-,\w]*)/$ | export               | apps.export_import_models.views.ExportTemplateView | {} |
| download_preview/$   | export_preview_download | apps.export_import_models.views.ExportPreviewDownloadView | {} |
| ^$                   | import               | apps.export_import_models.views.ImportTemplateView | {} |
| result/$             | import_result        | apps.export_import_models.views.ImportResultTemplateView | {} |
| ^$                   | index                | django.contrib.admin.sites.AdminSite.index | {} |
| ^$                   | index                | apps.core.views.IndexView | {} |
| ^jsi18n/$            | javascript-catalog   | django.views.i18n.javascript_catalog | {'packages': ('your.app.package',)} |
| ^jsi18n/$            | jsi18n               | django.contrib.admin.sites.AdminSite.i18n_javascript | {} |
| level/(?P<slug>[-_\w]+)/$ | level                | apps.users.views.UserDetailView | {} |
| ^login/$             | login                | django.contrib.admin.sites.AdminSite.login | {} |
| ^logout/$            | logout               | django.contrib.admin.sites.AdminSite.logout | {} |
| newsletter/(?P<slug>[_\w]+)/$ | newsletter           | apps.newsletters.views.NewsletterDetailView | {} |
| newsletters/$        | newsletters          | apps.newsletters.views.NewslettersListView | {} |
| notification/(?P<account_email>[-\w]+@[-\w]+.\w+)/$ | notification         | apps.notifications.views.NotificationDetailView | {} |
| ^password_change/$   | password_change      | django.contrib.admin.sites.AdminSite.password_change | {} |
| ^password_change/done/$ | password_change_done | django.contrib.admin.sites.AdminSite.password_change_done | {} |
| ^image/(?P<height>\d+)x(?P<width>\d+)/$ | placeholder          | apps.core.views.PlaceholderView | {} |
| poll/(?P<pk>\w{8}-\w{4}-\w{4}-\w{4}-\w{12})/(?P<slug>[-\w]+)/$ | poll                 | apps.polls.views.PollDetailView | {} |
| ^add/$               | polls_choice_add     | django.contrib.admin.options.ModelAdmin.add_view | {} |
| ^(.+)/change/$       | polls_choice_change  | django.contrib.admin.options.ModelAdmin.change_view | {} |
| ^$                   | polls_choice_changelist | django.contrib.admin.options.ModelAdmin.changelist_view | {} |
| ^(.+)/delete/$       | polls_choice_delete  | django.contrib.admin.options.ModelAdmin.delete_view | {} |
| ^(.+)/history/$      | polls_choice_history | django.contrib.admin.options.ModelAdmin.history_view | {} |
| ^add/$               | polls_poll_add       | django.contrib.admin.options.ModelAdmin.add_view | {} |
| ^(.+)/change/$       | polls_poll_change    | django.contrib.admin.options.ModelAdmin.change_view | {} |
| ^$                   | polls_poll_changelist | django.contrib.admin.options.ModelAdmin.changelist_view | {} |
| ^(.+)/delete/$       | polls_poll_delete    | django.contrib.admin.options.ModelAdmin.delete_view | {} |
| ^(.+)/history/$      | polls_poll_history   | django.contrib.admin.options.ModelAdmin.history_view | {} |
| ^$                   | polls_vote_changelist | django.contrib.admin.options.ModelAdmin.changelist_view | {} |
| publisher/(?P<slug>[-_\w]+)/$ | publisher            | apps.books.views.PublisherDetailView | {} |
| question/(?P<slug>[-_\w]+)/$ | question             | apps.questions.views.QuestionDetailView | {} |
| ^add/$               | questions_answer_add | django.contrib.admin.options.ModelAdmin.add_view | {} |
| ^(.+)/change/$       | questions_answer_change | django.contrib.admin.options.ModelAdmin.change_view | {} |
| ^$                   | questions_answer_changelist | django.contrib.admin.options.ModelAdmin.changelist_view | {} |
| ^(.+)/delete/$       | questions_answer_delete | django.contrib.admin.options.ModelAdmin.delete_view | {} |
| ^(.+)/history/$      | questions_answer_history | django.contrib.admin.options.ModelAdmin.history_view | {} |
| ^add/$               | questions_question_add | django.contrib.admin.options.ModelAdmin.add_view | {} |
| ^(.+)/change/$       | questions_question_change | django.contrib.admin.options.ModelAdmin.change_view | {} |
| ^$                   | questions_question_changelist | django.contrib.admin.options.ModelAdmin.changelist_view | {} |
| ^(.+)/delete/$       | questions_question_delete | django.contrib.admin.options.ModelAdmin.delete_view | {} |
| ^(.+)/history/$      | questions_question_history | django.contrib.admin.options.ModelAdmin.history_view | {} |
| ^setlang/$           | set_language         | django.views.i18n.set_language | {} |
| ^add/$               | snippets_snippet_add | django.contrib.admin.options.ModelAdmin.add_view | {} |
| ^(.+)/change/$       | snippets_snippet_change | django.contrib.admin.options.ModelAdmin.change_view | {} |
| ^$                   | snippets_snippet_changelist | django.contrib.admin.options.ModelAdmin.changelist_view | {} |
| ^(.+)/delete/$       | snippets_snippet_delete | django.contrib.admin.options.ModelAdmin.delete_view | {} |
| ^(.+)/history/$      | snippets_snippet_history | django.contrib.admin.options.ModelAdmin.history_view | {} |
| solution/(?P<pk>\w{8}-\w{4}-\w{4}-\w{4}-\w{12})/(?P<slug>[-_\w]+)/$ | solution             | apps.solutions.views.SolutionDetailView | {} |
| suit/(?P<slug>[-\w]+)/$ | suit                 | apps.testing.views.SuitDetailView | {} |
| tag/(?P<name>[-_\w]+)/$ | tag                  | apps.tags.views.TagDetailView | {} |
| theme/(?P<slug>[-_\w]+)/$ | theme                | apps.forum.views.SectionDetailView | {} |
| topic/(?P<slug>[-_\w]+)/$ | topic                | apps.forum.views.TopicDetailView | {} |
| update/$             | update               | apps.users.views.UserDetailView | {} |
| ^r/(?P<content_type_id>\d+)/(?P<object_id>.+)/$ | view_on_site         | django.contrib.contenttypes.views.shortcut | {} |
| writer/(?P<slug>[-_\w]+)/$ | writer               | apps.books.views.WriterDetailView | {} |
----------------------------------------------------------------------------------------------------

回答5:

Django 1.11, Python 2.7.6

cd to_your_django_project

python manage.py shell

Then paste following code.

from django.conf.urls import RegexURLPattern, RegexURLResolver
from django.core import urlresolvers
urls = urlresolvers.get_resolver()

def if_none(value):
    if value:
        return value
    return ''

def print_urls(urls, parent_pattern=None):
    for url in urls.url_patterns:
        if isinstance(url, RegexURLResolver):
            print_urls(url, if_none(parent_pattern) + url.regex.pattern)
        elif isinstance(url, RegexURLPattern):
            print if_none(parent_pattern) + url.regex.pattern

print_urls(urls)

Sample output:

^django-admin/^$
^django-admin/^login/$
^django-admin/^logout/$
^django-admin/^password_change/$
^django-admin/^password_change/done/$
^django-admin/^jsi18n/$
^django-admin/^r/(?P<content_type_id>\d+)/(?P<object_id>.+)/$
^django-admin/^wagtailimages/image/^$
^django-admin/^wagtailimages/image/^add/$
^django-admin/^wagtailimages/image/^(.+)/history/$
^django-admin/^wagtailimages/image/^(.+)/delete/$
^django-admin/^wagtailimages/image/^(.+)/change/$
^django-admin/^wagtailimages/image/^(.+)/$
...

回答6:

There's a plugin I use: https://github.com/django-extensions/django-extensions, it has a show_urls command that could help.

回答7:

def get_resolved_urls(url_patterns):
    url_patterns_resolved = []
    for entry in url_patterns:
        if hasattr(entry, 'url_patterns'):
            url_patterns_resolved += get_resolved_urls(
                entry.url_patterns)
        else:
            url_patterns_resolved.append(entry)
    return url_patterns_resolved

In python manage.py shell

import urls
get_resolved_urls(urls.urlpatterns)

回答8:

I have extended Seti's command to show namespace, all url parts, auto-adjust column widths, sorted by (namespace,name): https://gist.github.com/andreif/263a3fa6e7c425297ffee09c25f66b20

import sys
from django.core.management import BaseCommand
from django.conf.urls import RegexURLPattern, RegexURLResolver
from django.core import urlresolvers


def collect_urls(urls=None, namespace=None, prefix=None):
    if urls is None:
        urls = urlresolvers.get_resolver()
    _collected = []
    prefix = prefix or []
    for x in urls.url_patterns:
        if isinstance(x, RegexURLResolver):
            _collected += collect_urls(x, namespace=x.namespace or namespace,
                                       prefix=prefix + [x.regex.pattern])
        elif isinstance(x, RegexURLPattern):
            _collected.append({'namespace': namespace or '',
                               'name': x.name or '',
                               'pattern': prefix + [x.regex.pattern],
                               'lookup_str': x.lookup_str,
                               'default_args': dict(x.default_args)})
        else:
            raise NotImplementedError(repr(x))
    return _collected


def show_urls():
    all_urls = collect_urls()
    all_urls.sort(key=lambda x: (x['namespace'], x['name']))

    max_lengths = {}
    for u in all_urls:
        for k in ['pattern', 'default_args']:
            u[k] = str(u[k])
        for k, v in list(u.items())[:-1]:
            # Skip app_list due to length (contains all app names)
            if (u['namespace'], u['name'], k) == \
                    ('admin', 'app_list', 'pattern'):
                continue
            max_lengths[k] = max(len(v), max_lengths.get(k, 0))

    for u in all_urls:
        sys.stdout.write(' | '.join(
            ('{:%d}' % max_lengths.get(k, len(v))).format(v)
            for k, v in u.items()) + '\n')


class Command(BaseCommand):
    def handle(self, *args, **kwargs):
        show_urls()