[Typo3-dev] extending an extension

[Ries van Twisk]

Christoph Koehler wrote:

>Hello,
>
>I have been looking around at various documents for developing extensions,  
>and I was wondering if any of you can point me to some that would be  
>helpful to extend an already existing extension, since the mailing list  
>archive is gone at the moment.
>
>Thanks!
>
>  
>
There are some techniques, one is XLASS the other one is hooks, I 
prefere hooks.
The rule is more like this:

If the extention is private and you ar enot going to upload your 
extention of a extention of extention extention, then you can use the 
XLASS method.
IF you are going to upload your extention extention to TER then it 
HIGHLY prefered to use hooks for this.
You need to take a look in the source or code to see if there is a hook 
provided for 'what you want to do...', if not
then ask the author of the extention you want to extent if he can add a 
few hooks on sensible places for you...

Yet better, cooperate with the author and intergrate your add-on to the 
extention, TER is already poluted with un-usefull extentions... 
ofcourse, if you are planning to share it with us...


regards,
Ries




-- 
R. van Twisk
http://www.metamorf.net

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