django默認管理admin對象對模型的排序自定義

django2/3中，默認的模型管理中，模型的排序是名稱的字母順序，源代碼位置：.venv/python3.6/site-packages/django/contrib/admin/sites.py中AdminSite

    def get_app_list(self, request):
        """
        Return a sorted list of all the installed apps that have been
        registered in this site.
        """
        app_dict = self._build_app_dict(request)

        # Sort the apps alphabetically.
        app_list = sorted(app_dict.values(), key=lambda x: x['name'].lower())

        # Sort the models alphabetically within each app.
        for app in app_list:
            app['models'].sort(key=lambda x: x['name'])

        return app_list

    @never_cache
    def index(self, request, extra_context=None):
        """
        Display the main admin index page, which lists all of the installed
        apps that have been registered in this site.
        """
        app_list = self.get_app_list(request)

        context = {
            **self.each_context(request),
            'title': self.index_title,
            'app_list': app_list,
            **(extra_context or {}),
        }

        request.current_app = self.name

        return TemplateResponse(request, self.index_template or 'admin/index.html', context)

以上為django中的源代碼，可以看到

app['models'].sort(key=lambda x: x['name'])為實際的排序算法。

首先參考官方文檔覆蓋 Django Admin 的 AdminSite 類：

https://docs.djangoproject.com/en/2.1/ref/contrib/admin/#overriding-the-default-admin-site

實際的處理方法有以下三種：但本人推薦和采用的是第三種

• 在 每個 APP model 里為 Meta 類下的 verbose_name_plural 字段添加 數字前綴 1
• 重寫 admin/base.html 模板頁面 2
• 重寫 AdminSite 類的 index() 方法 3

1、在項目的根目錄下找到項目同名文件夾，比如：項目名稱為myproject，則在它下面的myproject文件下新建admin.py

在其中創建一個類覆蓋默認的管理類：

from django.contrib.admin import AdminSite
class ModelIndexReOrder(AdminSite):
    def get_app_list(self, request):
        """
        Return a sorted list of all the installed apps that have been
        registered in this site.
        """
        re_order = {
            'Company': 101,
            'Staff': 102,
            
            'Customer': 201,
            'User': 202,

        }
        app_dict = self._build_app_dict(request)

        # Sort the apps alphabetically.
        app_list = sorted(app_dict.values(), key=lambda x: x['name'].lower())

        # Sort the models alphabetically within each app.
        for app in app_list:
            #對自定義的APP排序，默認的不排序
            if app["app_label"] == 'APP名稱':
                app['models'].sort(key=lambda x: re_order[x['object_name']])
            else:
                app['models'].sort(key=lambda x: x['name'])
        return app_list

2、在同樣的目錄下創建apps.py

from django.contrib.admin.apps import AdminConfig

#類名隨便，可自己辨認就行
class APPNameModelsConfig(AdminConfig):
    default_site = '項目名稱(這里就是myproject).admin.ModelIndexReOrder'

3、修改項目默認配置settings中

INSTALLED_APPS = [
    # 'django.contrib.admin',
    'crm.apps.APPNameModelsConfig',
    ......