这里解释的东西会有帮助https://hakibenita.com/how-to-add-a-text-filter-to-django-admin

class InputFilter(admin.SimpleListFilter):
    template = "admin/input_filter.html"

    def lookups(self, request, model_admin):
        # Dummy, required to show the filter.
        return ((),)

    def choices(self, changelist):
        # Grab only the "all" option.
        all_choice = next(super().choices(changelist))
        all_choice["query_parts"] = (
            (k, v)
            for k, v in changelist.get_filters_params().items()
            if k != self.parameter_name
        )
        yield all_choice

字符串
你需要重写模板

<!-- templates/admin/input_filter.html -->

{% load i18n %}

<h3>{% blocktrans with filter_title=title %} By {{ filter_title }} {% endblocktrans %}</h3>
<ul>
  <li>
    <form method="GET" action="">
        <input
           type="text"
           value="{{ spec.value|default_if_none:'' }}"
           name="{{ spec.parameter_name }}"/>
    </form>
  </li>
</ul>

型

用法

class UIDFilter(InputFilter):
    parameter_name = 'uid'
    title = _('UID')

    def queryset(self, request, queryset):
        if self.value() is not None:
            uid = self.value()

            return queryset.filter(
                Q(uid=uid) |
                Q(payment__uid=uid) |
                Q(user__uid=uid)
            )

型
https://gist.githubusercontent.com/hakib/1491a848e71078dae81fca48c46cc258/raw/19934611bcdd6d806aabaf00f55f582cd40fffd8/input_filter.html的
https://gist.githubusercontent.com/hakib/1491a848e71078dae81fca48c46cc258/raw/19934611bcdd6d806aabaf00f55f582cd40fffd8/admin.py的
所有信贷的主人这篇文章