我怎么能看到当前的urlpatterns“反向”正在寻找?

我在一个视图中调用了逆向,我认为这个论证应该成立,但实际上并不成立。有什么办法能让我知道为什么我的图案没有?


当前回答

django 2.0的极简解决方案

例如,如果你正在寻找installed_apps的第一个应用程序上的url,你可以像这样访问它:

from django.urls import get_resolver
from pprint import pprint

pprint(
    get_resolver().url_patterns[0].url_patterns
)

其他回答

我正在使用下面的命令:

(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)

用法:

./manage.py showurls

样例输出:

----------------------------------------------------------------------------------------------------
| ^(.+)/$              |                      | 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 | {} |
----------------------------------------------------------------------------------------------------

试试这个:

from django.urls import get_resolver
get_resolver().reverse_dict.keys()

或者如果你还在Django 1上。*:

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

在Django 3.0中,这很简单:

from django.urls import get_resolver
print(get_resolver().url_patterns)

指纹: < urltern " >, < urltern '/测试"[另一个名称]>

只要输入一个你知道不存在的url,服务器就会返回一个错误消息,其中包含一个url模式列表。

例如,如果你在http://localhost:8000/something上运行一个网站

输入

http://localhost:8000/something/blahNonsense,您的服务器将返回url搜索列表并在浏览器中显示它

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

在python中manage.py shell

import urls
get_resolved_urls(urls.urlpatterns)