The CakePHP documentation on saving HABTM data didn't cover a use-case my app needed. My form submits a comma-separated list of associated-model ids to save with a user. With a little data-format massaging, I found a way to save it all with one call to Model->save(...). My app has a schema with a User model and Equipment model that share a HABTM relationship. In other words, one or more users may