Django-grappelli管理员：没有反向匹配错误 [英] Django-grappelli admin: No reverse match error

问题描述

我已经在一个django项目上工作了一段时间，现在使用grappelli作为管理员，突然之间，我的change_form.html模板正在抛出以下错误：

I've been working on a django project for a while now that uses grappelli for the admin and all of a sudden today my change_form.html template is throwing the following error:

Caught NoReverseMatch while rendering: Reverse for "grp_related_lookup" with arguments '()' and keyword arguments '{}' not found.

违规代码行是第38行：

The offending line of code is line 38:

37    $.each(related_lookup_fields_fk, function() {
38        $("#id_" + this).grp_related_fk({lookup_url:"{% url grp_related_lookup %}"});
39    });

之前是这一段代码：

var related_lookup_fields_fk = {% get_related_lookup_fields_fk adminform.model_admin %};

显然这是 {％url grp_related_lookup％}

我不明白模板如何解决 grp_related_lookup 到 grappelli.views.related.related_lookup 。我已经尝试用 grappelli.views.related.related_lookup 替换 grp_related_lookup ，这也没有。此外，在模板中，违规行如下所示：

I don't understand how the template is resolving grp_related_lookup to grappelli.views.related.related_lookup. I have tried replacing grp_related_lookup with grappelli.views.related.related_lookup and that didn't work either. Also, in the template the offending line looks like this:

$("#id_" + this).grp_related_fk({lookup_url:"{% url grp_related_lookup %}"});

但在错误信息中如下所示：

but in the error message it looks like this:

$("#id_" + this).grp_related_fk({lookup_url:"{% url 'grp_related_lookup' %}"});

我不知道围绕 grp_related_lookup 可能与问题有关。 django如何呈现函数调用？是否将字符串'grp_related_lookup'传递给url模板标签？如果是这样，可能会导致这样做突破？

I don't know if the single quotes surrounding grp_related_lookup might have something to do with the problem or not. Is that how django rendered the function call? Is it passing the string 'grp_related_lookup' to the url template tag? If so, what might have caused this to break suddenly?

一些额外的信息：

• related_lookup_fields 的值为空列表 [] 。我没有在我的admin.py中定义任何 related_lookup_fields 。


• 我将一些调试语句投入到 grappelli.views.related.related_lookup 查看功能，似乎没有被调用。


• 我最近没有碰到任何模板。 li>
  

• The value of related_lookup_fields is an empty list []. I am not defining any related_lookup_fields in my admin.py.
• I threw a couple debug statements into the grappelli.views.related.related_lookup view function and it doesn't appear to be getting called.
• I have not touched any of the templates recently.

希望有人可以指向正确的方向...谢谢！

Hopefully someone can point me in the right direction... Thanks!

推荐答案

您的URLconf中是否包含'grappelli.urls'？这是唯一的原因，我会看到这将导致这个错误。您可以尝试使用django中的 python manage.py shell ：

Do you still have 'grappelli.urls' included in your URLconf? That the only reason I see that would cause this error. You can try using python manage.py shell:

from django.core.urlresolvers import reverse
print reverse('grp_related_lookup')

如果此行返回正确的URL，你不应该在你的模板中得到一个 NoReverseMatch 。

If this line returns the correct URL, you shouldn't get a NoReverseMatch in your template.

grp_related_lookup 不应该是一个问题。 {％url％} 标签接受引用和未引用的字符串作为第一个参数，因此django将其标准化为引用的字符串。这种行为将来会发生变化：您可以使用无引号的字符串将模板变量传递给 {％url％} 。 {％url foo％} 和 {％urlfoo％} 将不会产生相同的结果，有关详细信息的 1.3发行说明关于这个。

The quotes around grp_related_lookup shouldn't be a concern. The {% url %} tag accepts both quoted and unquoted strings as first argument, so django normalizes it to quoted strings. This behaviour is going to change in the future: you'll be able to pass template variables to {% url %} using unquoted strings. {% url foo %} and {% url "foo" %} won't give the same result, see the 1.3 release notes for details about this.

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