{% comment %}
Companion to dropdown_filter.html for LookupFilterMixin. This filter has
no fixed set of choices to link to -- only a free-text value paired with
an operator -- so it renders a real <form> that submits via GET. No
JavaScript is required.

Styling lives in lookup_filter.css, loaded below via a <link>, not a
`Media` class: `admin_list_filter()` (django.contrib.admin.templatetags.
admin_list) renders `spec.template` directly with `get_template(...)
.render(...)`, and `ModelAdmin.media` -- the only media Django's own
change_list.html emits -- is a fixed property that never consults
`list_filter`. There is no `Media` hook a `ListFilter` template can ride
on, so the stylesheet is linked here instead. A <link> to an external
file needs no `'unsafe-inline'` style-src grant, unlike a `style=`
attribute, so this keeps the page CSP-safe while still loading the CSS.
{% endcomment %}
{% load i18n static %}
<link rel="stylesheet" href="{% static 'django_utils/admin/lookup_filter.css' %}">
{% block pre %}
{%  endblock %}
<h3>{% blocktrans with title as filter_title %} By {{ filter_title }} {% endblocktrans %}</h3>
<ul class="admin-filter-{{ title|slugify }}">
    <li>
    <form method="get">
        <select
            name="{{ spec.operator_parameter_name }}"
            class="form-control lookup-filter-operator">
        {% for operator in spec.operators %}
            <option value="{{ operator }}"{% if operator == spec.get_operator %} selected="selected"{% endif %}>{{ operator }}</option>
        {% endfor %}
        </select>
        <input
            type="text"
            name="{{ spec.parameter_name }}"
            value="{{ spec.value|default_if_none:'' }}"
            class="form-control lookup-filter-value">
        {% for key, values in spec.request.GET.lists %}
        {% if key != spec.parameter_name and key != spec.operator_parameter_name %}
        {% for value in values %}
        <input type="hidden" name="{{ key }}" value="{{ value }}">
        {% endfor %}
        {% endif %}
        {% endfor %}
        <input type="submit" value="{% trans 'Filter' %}">
    </form>
    </li>
{% block post %}
{%  endblock %}
</ul>