Django Admin设置应用程序及模型顺序方法详解

Django默认情况下，按字母顺序对模型进行排序。因此，Event应用模型的顺序为Epic、EventHero、EventVillain、Event

假设你希望顺序是

EventHero、EventVillain、Epic、Event。

用于呈现后台indxe页面的模板为admin/index.html，对应的视图函数为 ModelAdmin.index。

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)

默认的get_app_list方法用于设置模型的顺序。

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

因此，可以通过覆盖get_app_list方法来修改显示顺序：

class EventAdminSite(AdminSite): def get_app_list(self, request): ''' Return a sorted list of all the installed apps that have been registered in this site. ''' ordering = { 'Event heros': 1, 'Event villains': 2, 'Epics': 3, 'Events': 4 } app_dict = self._build_app_dict(request) # a.sort(key=lambda x: b.index(x[0])) # 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: ordering[x[’name’]]) return app_list

以上代码app[’models’].sort(key=lambda x: ordering[x[’name’]])用来设置默认顺序。修改后效果如下。

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