97 lines
3.2 KiB
Python
97 lines
3.2 KiB
Python
|
"""
|
||
|
|
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,
|
||
|
|
)
|