Re: [Phpwiki-talk] phpWiki patch - concurrent updates

[Jeff D. <da...@da...>]

Marcel van der Boom said:

> But (at least in the PN module version) the instructions of the
> error message are wrong. When hitting the back button, the page is
> retrieved from the db again, so the last changes are lost. (maybe that
> is the error).

Yes.  That's a function of the cache-control HTTP headers sent by
PHP.  This started happening when we starting using PHP's session
support.  It's now been fixed (in the main PhpWiki CVS) by doing
a

  session_cache_limit('none');

before the first call to any other session handling functions.



Also note that (though I haven't played with it yet, so I might
have details wrong) Lawrence has added "merge conflicting edits"
functionality to the latest CVS version of PhpWiki:  If you try
to save your edits, when there has been an intervening save by
another user, you get returned to the edit form, but the text in
the edit form will contain the latest changes merged with your
changes.  You can simply hit "save" again to save the merged
version, if that's what you want.

I think that ought to solve most problems arising from
simultaneous edits...