Pagination does not carry filter parameters

[payton-yang]

Describe the bug

Pagination does not carry filter parameters.

Steps to reproduce

1. Input filter parameters
   http://127.0.0.1:8000/admin/reports/tpareports/?date_start=2012-09-26&date_end=2028-09-26

2. Pagination is still original

Details

OS: Windows 10/Alpine Linux v3.13
Python version 3.6
Django version 3.1.3
django-admin-search version 0.3.11
Browser Chrome

Add

This plugin is great. I can't fix it because I'm a Django beginner.
I appreciate your contribution whether you fix this or not.

[bogdaniordachescu]

Hi, just extend the pagination default from admin and drag allong tyhe params:

    @register.inclusion_tag("admin/pagination.html", takes_context=True)
    @register.tag
    def custom_pagination(context, cl):
        pagination = admin_list.pagination(cl)
    
        url = context.request.get_full_path()
        url_object = urlparse(url)
        queries = QueryDict(url_object.query, mutable=True)
        pagination['extra_params'] = queries.items()
        extra_param_url = ''
        for key, value in pagination['extra_params']:
            if key != 'p':
                extra_param_url += '&%s=%s' % (key, value)
        pagination['extra_param_url'] = extra_param_url
    
        return pagination

and override the admin pagination:

{% load admin_list %}
{% load i18n %}
{% load content_extras %}

<p class="paginator">
{% if pagination_required %}
    {% for i in page_range %}
        <a href="?p={{ i }}{{ extra_param_url }}">{{ i }}</a>
    {% endfor %}
{% endif %}
    {{ cl.result_count }} {% if cl.result_count == 1 %}{{ cl.opts.verbose_name }}{% else %}{{ cl.opts.verbose_name_plural }}{% endif %}
    {% if show_all_url %}<a href="{{ show_all_url }}" class="showall">{% trans 'Show all' %}</a>{% endif %}
    {% if cl.formset and cl.result_count %}<input type="submit" name="_save" class="default" value="{% trans 'Save' %}">{% endif %}
</p>