- From: Yonathan <yonathan@gmail.com>
- Date: Fri, 16 Mar 2012 04:24:19 -0700
- To: public-webapps@w3.org
I’m concerned that people will listen to IDBRequest’s “success” event to notify when an add or put has been successfully written. For example, the “Using IndexedDB” article[1] recommends, “The first thing you'll want to do with almost all of the requests you generate is to add success and error handlers:” Instead, as far as I can tell, success listeners should only be added to read requests (get, count, and openCursor after each continue and advance), whereas for write requests you should almost always listen to the transaction’s “complete” event instead. The reason is that after a request succeeds, the transaction as a whole may yet fail due to UnknownError, as well as abort or an error in a later request on the same transaction if you don’t preventDefault(). Should the specification encourage onsuccess for reads and oncomplete for writes? [1]: https://developer.mozilla.org/en/IndexedDB/Using_IndexedDB Yonathan Randolph
Received on Monday, 19 March 2012 07:36:05 UTC