update

backEnd/venv/lib/python3.12/site-packages/django/contrib/admin/actions.py

@@ -0,0 +1,94 @@
+"""
+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 = len(queryset)
+        if n:
+            modeladmin.log_deletions(request, queryset)
+            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 = _("Delete multiple objects")
+
+    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,
+    )