Fixed #25324 -- Registered ModelAdmin instances with @admin.register decorator

sensitive_post_parameters_m = method_decorator(sensitive_post_parameters())

@admin.register(Group)

class GroupAdmin(admin.ModelAdmin):

    search_fields = ('name',)

    ordering = ('name',)

            db_field, request=request, **kwargs)

@admin.register(User)

class UserAdmin(admin.ModelAdmin):

    add_form_template = 'admin/auth/user/add_form.html'

    change_user_password_template = None

            request.POST['_continue'] = 1

        return super(UserAdmin, self).response_add(request, obj,

                                                   post_url_continue)

admin.site.register(Group, GroupAdmin)

admin.site.register(User, UserAdmin)

from django.utils.translation import ugettext_lazy as _

@admin.register(FlatPage)

class FlatPageAdmin(admin.ModelAdmin):

    form = FlatpageForm

    fieldsets = (

    list_display = ('url', 'title')

    list_filter = ('sites', 'registration_required')

    search_fields = ('url', 'title')

admin.site.register(FlatPage, FlatPageAdmin)

from django.contrib.redirects.models import Redirect

@admin.register(Redirect)

class RedirectAdmin(admin.ModelAdmin):

    list_display = ('old_path', 'new_path')

    list_filter = ('site',)

    search_fields = ('old_path', 'new_path')

    radio_fields = {'site': admin.VERTICAL}

admin.site.register(Redirect, RedirectAdmin)

from django.contrib.sites.models import Site

@admin.register(Site)

class SiteAdmin(admin.ModelAdmin):

    list_display = ('domain', 'name')

    search_fields = ('domain', 'name')

admin.site.register(Site, SiteAdmin)