如何使用其他get变量分页Django？ [英] How to paginate Django with other get variables?

问题描述

在 Django 中使用分页时遇到问题。以下面的URL为例：

I am having problems using pagination in Django. Take the URL below as an example:

http://127.0.0.1:8000/users/?sort=first_name

在此页面上，我们按照first_name对用户列表进行排序。没有排序GET变量，它默认按照id排序。

On this page I sort a list of users by their first_name. Without a sort GET variable it defaults to sort by id.

现在，如果我点击下一个链接，我希望有以下URL：

Now if I click the next link I expect the following URL:

http://127.0.0.1:8000/users/?sort=first_name&page=2

相反，我失去所有的变量，最终得到

Instead I lose all get variables and end up with

http://127.0.0.1:8000/users/?page=2

这是一个问题，因为第二页按id而不是first_name排序。

This is a problem because the second page is sorted by id instead of first_name.

如果我使用request.get_full_path，我最终会得到一个丑陋的网址：

If I use request.get_full_path I will eventually end up with an ugly URL:

http://127.0.0.1:8000/users/?sort=first_name&page=2&page=3&page=4

什么是解决方案？有没有办法访问模板上的GET变量并替换页面的值？

What is the solution? Is there a way to access the GET variables on the template and replace the value for the page?

我正在使用分页，如 Django的文档，我的偏好是继续使用它。我使用的模板代码与此类似：

I am using pagination as described in Django's documentation and my preference is to keep using it. The template code I am using is similar to this:

{% if contacts.has_next %}
    <a href="?page={{ contacts.next_page_number }}">next</a>
{% endif %}

推荐答案

提出的自定义标签太复杂，这就是我在模板中所做的：

I thought the custom tags proposed were too complex, this is what I did in the template:

<a href="?{% url_replace request 'page' paginator.next_page_number %}">

标签功能：

@register.simple_tag
def url_replace(request, field, value):

    dict_ = request.GET.copy()

    dict_[field] = value

    return dict_.urlencode()

如果url_param还没有在url，它将添加值。如果已经存在，它将被新值替换。这是一个简单的解决方案，适合我，但是当url具有多个具有相同名称的参数时不起作用。

If the url_param is not yet in the url, it will be added with value. If it is already there, it will be replaced by the new value. This is a simple solution the suits me, but does not work when the url has multiple parameters with the same name.

您还需要将RequestContext请求实例提供给你的模板从你的看法。更多信息：

You also need the RequestContext request instance to be provided to your template from your view. More info here:

http://lincolnloop.com/blog/2008/may/10/getting-requestcontext-your-templates/

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