将上下文传递给 django 管理索引页面

Question

我正在尝试在 Django 管理员的索引页面上创建一个 table，列出在特定时间范围内注册的所有用户。我已经设法编辑索引页面以包含我的 table，但我现在想填充 table。我尝试声明 extra_context 变量，但它仍然没有将它传递给模板。我已经在这个问题上好几天了，但仍然无法弄清楚我做错了什么。这是我的 admin.py 文件

from django.contrib import admin
from django.contrib.auth.models import Group
from django.contrib.auth.admin import UserAdmin
from .forms import SignUpForm, EditUserForm
from .models import CustomUser
from django.urls import path
from datetime import datetime, timedelta
from django.utils import timezone


class CustomUserAdmin(UserAdmin):
    list_filter = ['created_at',]
    list_display = ['username', 'email', 'created_at', 'is_active']
    # index_template = 'admin/my_index.html'

    def time_threshold(num):
        num = int(num)
        thresh = datetime.now(tz=timezone.utc) - timedelta(hours=num)
        return thresh


    print(time_threshold(30))       
    def get_urls(self):
        urls = super().get_urls()
        custom_urls = [
            path("user_metrics/", self.user_metrics),
        ]
        return custom_urls + urls

    def user_metrics(self, request, extra_context=None):
        extra_context = extra_context or {}
        user_24 = CustomUser.objects.filter(created_at__gt=time_threshold(730))
        extra_context['users_in_past_24_hours'] = CustomUser.objects.filter(created_at__gt=time_threshold(24))
        extra_context['users_in_past_week'] = CustomUser.objects.filter(created_at__gt=time_threshold(168))
        extra_context['users_in_past_month'] = CustomUser.objects.filter(created_at__gt=time_threshold(730))
        print(user_24)
        return super(CustomUserAdmin, self).user_metrics(request, extra_context=extra_context)


admin.site.register(CustomUser, CustomUserAdmin)
admin.site.unregister(Group)
admin.site.site_header = "Savests Custom Admin"

这是我的 index.html 文件，我在 template/admin 文件夹中

{% extends "admin/base_site.html" %}
{% load i18n static %}

{% block extrastyle %}{{ block.super }}<link rel="stylesheet" type="text/css" href="{% static "admin/css/dashboard.css" %}">{% endblock %}

{% block coltype %}colMS{% endblock %}

{% block bodyclass %}{{ block.super }} dashboard{% endblock %}

{% block breadcrumbs %}{% endblock %}

{% block nav-sidebar %}{% endblock %}

{% block content %}
<div id="content-main">
  {% include "admin/app_list.html" with app_list=app_list show_changelinks=True %}
</div>

<div>
    <h5>Users in the last 24 hours</h5>
        <table class="table table-hover table-bordered">
            <caption>User Information</caption>
            <thead class="thead-dark">
                <th>User ID</th>
                <th>Username</th>
                <th>Email Address</th>
                <th>Active Status</th>
                <th>Staff Status</th>
            </thead>
            {% for a in users_in_past_24_hours %}
                <tr>
                    <td>{{ a.id }}</td>
                    <td>{{ a.username }}</td>
                    <td>{{ a.email }}</td>
                    <td>
                        {% if a.is_active %}
                            <form action="{% url 'toggle_user_status_false' user_id=a.id %}" method="post">
                                {% csrf_token %}
                                    <button class="btn btn-danger" type="submit">
                                        Deactivate
                                    </button>
                            </form>
                        {% else %}
                            <form action="{% url 'toggle_user_status_true' user_id=a.id %}" method="post">
                                {% csrf_token %}
                                    <button class="btn btn-primary" type="submit">
                                        Activate
                                    </button>
                            </form>
                        {% endif %}
                    </td>
                    <td>
                        {% if a.is_staff %}
                            Staff
                        {% else %}
                            Not Staff
                        {% endif %}
                    </td>
                </tr>
            {% endfor %}
        </table>
        <br>
        <hr>

        <h5>Users in the past week</h5>
        <table class="table table-hover table-bordered">
            <caption>User Information</caption>
            <thead class="thead-dark">
                <th>User ID</th>
                <th>Username</th>
                <th>Email Address</th>
                <th>Active Status</th>
                <th>Staff Status</th>
            </thead>
            {% for a in users_in_past_week %}
                <tr>
                    <td>{{ a.id }}</td>
                    <td>{{ a.username }}</td>
                    <td>{{ a.email }}</td>
                    <td>
                        {% if a.is_active %}
                            <form action="{% url 'toggle_user_status_false' user_id=a.id %}" method="post">
                                {% csrf_token %}
                                    <button class="btn btn-danger" type="submit">
                                        Deactivate
                                    </button>
                            </form>
                        {% else %}
                            <form action="{% url 'toggle_user_status_true' user_id=a.id %}" method="post">
                                {% csrf_token %}
                                    <button class="btn btn-primary" type="submit">
                                        Activate
                                    </button>
                            </form>
                        {% endif %}
                    </td>
                    <td>
                        {% if a.is_staff %}
                            Staff
                        {% else %}
                            Not Staff
                        {% endif %}
                    </td>
                </tr>
            {% endfor %}
        </table>
        <br>
        <hr>

        <h5>Users in the past month</h5>
        <table class="table table-hover table-bordered">
            <caption>User Information</caption>
            <thead class="thead-dark">
                <th>User ID</th>
                <th>Username</th>
                <th>Email Address</th>
                <th>Active Status</th>
                <th>Staff Status</th>
            </thead>
            {% for a in users_in_past_month %}
                <tr>
                    <td>{{ a.id }}</td>
                    <td>{{ a.username }}</td>
                    <td>{{ a.email }}</td>
                    <td>
                        {% if a.is_active %}
                            <form action="{% url 'toggle_user_status_false' user_id=a.id %}" method="post">
                                {% csrf_token %}
                                    <button class="btn btn-danger" type="submit">
                                        Deactivate
                                    </button>
                            </form>
                        {% else %}
                            <form action="{% url 'toggle_user_status_true' user_id=a.id %}" method="post">
                                {% csrf_token %}
                                    <button class="btn btn-primary" type="submit">
                                        Activate
                                    </button>
                            </form>
                        {% endif %}
                    </td>
                    <td>
                        {% if a.is_staff %}
                            Staff
                        {% else %}
                            Not Staff
                        {% endif %}
                    </td>
                </tr>
            {% endfor %}
        </table>
        <br>
        <hr>
</div>
{% endblock %}

{% block sidebar %}
<div id="content-related">
    <div class="module" id="recent-actions-module">
        <h2>{% translate 'Recent actions' %}</h2>
        <h3>{% translate 'My actions' %}</h3>
            {% load log %}
            {% get_admin_log 10 as admin_log for_user user %}
            {% if not admin_log %}
            <p>{% translate 'None available' %}</p>
            {% else %}
            <ul class="actionlist">
            {% for entry in admin_log %}
            <li class="{% if entry.is_addition %}addlink{% endif %}{% if entry.is_change %}changelink{% endif %}{% if entry.is_deletion %}deletelink{% endif %}">
                {% if entry.is_deletion or not entry.get_admin_url %}
                    {{ entry.object_repr }}
                {% else %}
                    <a href="{{ entry.get_admin_url }}">{{ entry.object_repr }}</a>
                {% endif %}
                <br>
                {% if entry.content_type %}
                    <span class="mini quiet">{% filter capfirst %}{{ entry.content_type.name }}{% endfilter %}</span>
                {% else %}
                    <span class="mini quiet">{% translate 'Unknown content' %}</span>
                {% endif %}
            </li>
            {% endfor %}
            </ul>
            {% endif %}
    </div>
</div>
{% endblock %}

Answer 1

第一种方法是声明子类 django.contrib.admin.site.AdminSite() 并覆盖 admin.py

中的 .index() 方法

class MyAdminSite(django.contrib.admin.site.AdminSite):
    def index(self, request, extra_context=None):
        if extra_context is None:
            extra_context = {}
        user_24 = CustomUser.objects.filter(created_at__gt=time_threshold(730))
        extra_context['users_in_past_24_hours'] = CustomUser.objects.filter(created_at__gt=time_threshold(24))
        extra_context['users_in_past_week'] = CustomUser.objects.filter(created_at__gt=time_threshold(168))
        extra_context['users_in_past_month'] = CustomUser.objects.filter(created_at__gt=time_threshold(730))
        extra_context["app_list"] = get_app_list_in_custom_order()
        return super(MyAdminSite, self).index(request, extra_context)

那么您应该注册您的站点管理员（也在 admin.py 中） my_admin_site = MyAdminSite(name='myadmin') 当您创建自己的 AdminSite 时，您需要使用它来注册所有模型，因此而不是 admin.site.register(YourModel) 你应该对你使用的所有模型使用 my_admin_site.register(YourModel)。您还需要在 urls.py

中添加管理站点的路径

from pathtoyouradmin.admin import my_admin_site


urlpatterns = [
...
    path('admin/', my_admin_site.urls),
...
]

您可以通过其他方式解决您的问题。您可以创建 contextprocessor，在其中检查当前页面的路径，如果是管理索引，则提供所需的 extra_context

def context_users_info(request):
    extra_context = {}
    if request.path == 'index admin page'# you need to put path to your index admin page
        user_24 = CustomUser.objects.filter(created_at__gt=time_threshold(730))
        extra_context['users_in_past_24_hours'] = CustomUser.objects.filter(created_at__gt=time_threshold(24))
        extra_context['users_in_past_week'] = CustomUser.objects.filter(created_at__gt=time_threshold(168))
        extra_context['users_in_past_month'] = CustomUser.objects.filter(created_at__gt=time_threshold(730))
        extra_context["app_list"] = get_app_list_in_custom_order()
    return extra_context

并且不要忘记在 settings.py

中注册您的上下文处理器

将上下文传递给 django 管理索引页面

Passing context to django admin index page

html

python

django

django-admin