Re: [Phpwiki-talk] How to delete a specific revision?

[Reini U. <ru...@x-...>]

Joby Walker schrieb:
> Martin Geisler wrote:
> 
>> Aha, like a linked list? But the comments also say that you cannot
>> modify a revision, you can only create or delete them, so perhaps this
>> is a bigger issue?
>>
> 
> Kinda.  I'm not a huge fan of the current structure, but as far as I can 
> see by looking at the database (version table).  Each record stores the 
> mtime of the version number that replaces it.  Thus the following would 
> have to happen:
> 
> I'll use R0 for the revision to be deleted. R1 for a revision that might 
> follow R0.  And R-1 for the revision that is prior to R0.
> 
> If the purged revision is the newest:
> 1) delete R0
> 2) revert R-1 to be the final version
> 
> If there is a R1:
> 1) grab from R0 the mtime of R1
> 2) change the mtime stored in R-1 (which would be R0) to value in 1)
> 3) delete R0.
> 
> There might be other consiquenses.  I haven't looked too much into this. 
>  The developers that have been around longer would know.
> 
>> But I imagined that it should work just like the 'Remove Page' button
>> that only appears when you're signed in as the administrator. So
>> normal users shouldn't have access to it.
>>
> 
> That's not really the issue.  I don't want _ANYONE_ to be able to delete 
> versions.  Although I have an intesive backup scheme, I don't want to 
> lose any data -- even if undesireable.  Of course I am implimenting some 
> severe editing restrictions so undesireable content is unlikely to 
> occur.  I would prefer if this functionality would have to be enabled 
> via a defined constant in index.php.

Deleting the last version only is a good idea. Deleting in-between 
versions probably not.
Currently we do manual reverting, which might become tedious on 
WikiVandalism.

I'll add it to a new plugin similar to WikiAdminRemove.
Name: WikiAdminRemoveLatestVersion, on which you can do it on multiple 
pages.
-- 
Reini Urban
http://xarch.tu-graz.ac.at/home/rurban/