Stop Django Bulk Operations From Silently Skipping Signals

Django’s bulk_create(), bulk_update(), and update() are fast because they skip save(). That also means they skip the pre_save and post_save signals, so your receivers never fire. It’s documented for bulk_create(), bulk_update(), and update(), but nothing warns you at runtime. If a signal invalidates a cache, writes an audit log, or syncs a search index, one bulk call quietly skips that critical work. This post shows how to make those calls fail loudly instead.