maas-cli delete non existent zone/network returns nothing

[Diogo Matsubara]

To reproduce:
$ maas maas zone delete non-existent-zone

Basically you get no output deleting a non existent zone. Perhaps the cli should inform that you can't delete something that doesn't exist similar to the message when you try to delete the default zone.

[Diogo Matsubara (matsubara)]

The same happens for networks:
$ maas maas network delete non-existent --debug
204 NO CONTENT

  Content-Length: 0
    Content-Type: text/plain
            Date: Fri, 28 Feb 2014 20:03:32 GMT
          Server: Apache/2.4.7 (Ubuntu)
          Status: 204
            Vary: Authorization,Cookie

[Raphaël Badin (rvb)]

Do we really want to "fix" this? Treating the deletion of a non-existent entity as a success seems grammatically sounds and avoids a lot of nasty concurrency issues in a very elegant way.

[Julian Edwards (julian-edwards)]

On Sunday 02 Mar 2014 23:46:11 Raphaël Badin wrote:
> Do we really want to "fix" this? Treating the deletion of a non-
> existent entity as a success seems grammatically sounds and avoids a lot
> of nasty concurrency issues in a very elegant way.

Yes, we do. It's up to the client how it treats 404s, not the server.

[Jeroen T. Vermeulen (jtv)]

HTTP specifies that DELETE should be idempotent. If the thing you want deleted does not exist, that's success. We could return an informational message in the response body, maybe, but the status code should reflect success rather than failure.

[Andres Rodriguez (andreserl)]

Hi!

We believe this is no longer an issue in the latest MAAS releases. As such, we are marking this bug report as invalid. If you believe this is still an issue, please re-open this back report.

Thanks