""" Built-in, globally-available admin actions. """ from django.contrib import messages from django.contrib.admin import helpers from django.contrib.admin.decorators import action from django.contrib.admin.utils import model_ngettext from django.core.exceptions import PermissionDenied from django.template.response import TemplateResponse from django.utils.translation import gettext as _ from django.utils.translation import gettext_lazy @action( permissions=["delete"], description=gettext_lazy("Delete selected %(verbose_name_plural)s"), ) def delete_selected(modeladmin, request, queryset): """ Default action which deletes the selected objects. This action first displays a confirmation page which shows all the deletable objects, or, if the user has no permission one of the related childs (foreignkeys), a "permission denied" message. Next, it deletes all selected objects and redirects back to the change list. """ opts = modeladmin.model._meta app_label = opts.app_label # Populate deletable_objects, a data structure of all related objects that # will also be deleted. ( deletable_objects, model_count, perms_needed, protected, ) = modeladmin.get_deleted_objects(queryset, request) # The user has already confirmed the deletion. # Do the deletion and return None to display the change list view again. if request.POST.get("post") and not protected: if perms_needed: raise PermissionDenied n = queryset.count() if n: for obj in queryset: obj_display = str(obj) modeladmin.log_deletion(request, obj, obj_display) modeladmin.delete_queryset(request, queryset) modeladmin.message_user( request, _("Successfully deleted %(count)d %(items)s.") % {"count": n, "items": model_ngettext(modeladmin.opts, n)}, messages.SUCCESS, ) # Return None to display the change list page again. return None objects_name = model_ngettext(queryset) if perms_needed or protected: title = _("Cannot delete %(name)s") % {"name": objects_name} else: title = _("Are you sure?") context = { **modeladmin.admin_site.each_context(request), "title": title, "subtitle": None, "objects_name": str(objects_name), "deletable_objects": [deletable_objects], "model_count": dict(model_count).items(), "queryset": queryset, "perms_lacking": perms_needed, "protected": protected, "opts": opts, "action_checkbox_name": helpers.ACTION_CHECKBOX_NAME, "media": modeladmin.media, } request.current_app = modeladmin.admin_site.name # Display the confirmation page return TemplateResponse( request, modeladmin.delete_selected_confirmation_template or [ "admin/%s/%s/delete_selected_confirmation.html" % (app_label, opts.model_name), "admin/%s/delete_selected_confirmation.html" % app_label, "admin/delete_selected_confirmation.html", ], context, )