Re: [Zope] Trying to trap ConflictError

[Andreas Jung]

--On 4. Juli 2006 12:58:24 -0400 Jonathan <[EMAIL PROTECTED]> wrote:

----- Original Message ----- From: "Stefan H. Holek" <[EMAIL PROTECTED]>
To: "Jonathan" <[EMAIL PROTECTED]>
Cc: <zope@zope.org>
Sent: Tuesday, July 04, 2006 11:02 AM
Subject: Re: [Zope] Trying to trap ConflictError

First, you should not - ever - catch a ConflictError. It is essential
for  ConflictErrors to be propagated to the ZPublisher.

This seems to be an extremely 'user-unfriendly' approach.

In my use case the error is being generated when an image object is being
written to a temporary folder. If, for any reason, the image object is
not able to be stored it would seem prudent to be able to handle this
condition within the application software.

-aj

If you catch ConflictError then you have to perform conflict resolution on your own. But as Stefan wrote: you should *never* swallow ConflictErrors. I thionk there are one or two ZODB article available from zope.org explaining how to implement conflict resolution properly.

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