DanTMan is correct. We run one code base (except in temporary 
circumstances where a wiki is in transition to Wikia) and so any changes 
usually effect everyone. There is one GlobalSettings.php file ... but a 
different LocalSettings.php file for every wiki. Because managing so 
many LocalSettings.php files became, well, unmanageable, we put all of 
them in the database and have a tool that the comm team uses to modify 
the settings on a per-wiki basis.

In this case, if the $wg var were usually in the LocalSettings file, we 
could just set this for the wikis that requested it. Since the $wg var 
lives in the code, changing it will change it for everyone (that is, 
unless someone in Poland decides to recode the extension).

Thanks,
John Q.



DanTMan wrote:
> FALSE!!! Clarification, two reasons.
>
> Firstly, extensions are not individual. Every wiki references a 
> GlobalSettings.php with most of the settings all inside of that settings 
> file. The php files for the extensions are in a shared location. So 
> updating one wiki's extensions means updating it on every wiki.
>
> Secondly, just because there are multiple subdomains does not mean that 
> they have separate files. In fact, I've actually did some 
> experimentation. I had a single MediaWiki installation running multiple 
> MediaWiki sites all based on domain testing. All you really do is check 
> the incoming domain, and that determines how the settings are setup. 
> Just doing that can make even 100 different wiki run off the exact same 
> installation just simply by a switch which sets the $wgDBname for each 
> one to a different database.
>
> ~Daniel Friesen(Dantman) of:
> -The Gaiapedia (http://gaia.wikia.com)
> -Wikia ACG on Wikia.com (http://wikia.com/wiki/Wikia_ACG)
> -and Wiki-Tools.com (http://wiki-tools.com)
>
> Krzysztof Krzyz.aniak wrote:
>   
>> Not quite true :-) But I'll handle it anyway.
>>
>> TwoTailedFox wrote:
>>   
>>     
>>> I don't see a reason why it wouldn't, each Wikia is run on a
>>> subdomain, which means each has it's own MediaWiki extensions, and
>>> seperate PHP files.
>>>
>>> On 11/2/07, Scott Hanson <[EMAIL PROTECTED]> wrote:
>>>     
>>>       
>>>> Great! Can this be done on a wiki by wiki basis?
>>>>
>>>>
>>>> On 11/1/07, TwoTailedFox <[EMAIL PROTECTED]> wrote:
>>>>       
>>>>         
>>>>> You will find the $wgMaxUploadFiles variable is actually in the
>>>>> SpecialMultipleUpload.php file itself - The Variable is not coded in
>>>>> either MediaWiki or LocalSettings.php.
>>>>>
>>>>> On 11/1/07, Angela < [EMAIL PROTECTED]> wrote:
>>>>>         
>>>>>           
>>>>>> On 11/2/07, Scott Hanson <[EMAIL PROTECTED]> wrote:
>>>>>>           
>>>>>>             
>>>>>>> Hi all,
>>>>>>>
>>>>>>> Is there a way to increase the maximum number of fields in
>>>>>>> Special:MultipleUpload ?
>>>>>>>             
>>>>>>>               
>>>>>> According to
>>>>>>           
>>>>>>             
>>>> <http://www.mediawiki.org/wiki/Extension:MultiUpload>,
>>>>       
>>>>         
>>>>>> changing $wgMaxUploadFiles should do it, but I don't see this in the
>>>>>> page staff use to change such settings.
>>>>>>
>>>>>> Emil - do you know where it is?
>>>>>>
>>>>>> Angela
>>>>>> _______________________________________________
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>>>>>>
>>>>>>           
>>>>>>             
>>>>> --
>>>>> "I had a handle on life, but then it broke"
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>>>>>
>>>>>         
>>>>>           
>>>> _______________________________________________
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>>>>       
>>>>         
>>>     
>>>       
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