862689 - No onerror event on deleting a nonexistent database

Status: RESOLVED INVALID

(Core :: Storage: IndexedDB, defect, P5)

Description

[Lcf.vs]

Attachment: IndexedDB.onerror.bug.js

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0
Build ID: 20130409194949

Steps to reproduce:

I try to detect if a database was really deleted


Actual results:

No onerror event on deleting a nonexistent database


Expected results:

If the database doesn't exists, the onerror event to be launched

Comment 1

[Lcf.vs]

Hum, the documentation indicates that this isn't a bug ... However, there is no way to verify this without reopening (and recreate the database)

Comment 2

[Lcf.vs]

A onsuccess for trying to delete a database that doesn't exist doesn't seem to be a natural behavior.

Comment 3

[Ben Turner (not reading bugmail, use the needinfo flag!)]

This is by design. We try to never fire error events for normal operations that are not actual errors. Deleting records from an objectStore always fires a success event regardless of whether the record existed, as well.

Perhaps you're really just interested in a "does my database exist" function?

Comment 4

[Lcf.vs]

Yeah, it's really an interesting feature... :)

Comment 5

[Lcf.vs]

Or property similar to indexNames, for the databases.

It seems to me more akin to what is already existing.

Comment 6

[Kagami Rosylight 🏳️‍🌈🏳️‍⚧️ [:saschanaz] (they/them)]

As comment #1 said, this is compliant to the spec and Chrome behavior:

Let db be the database named name in storageKey, if one exists. Otherwise, return 0 (zero).