[TYPO3-ect] Finally a result browser

Elmar Hinz elmar07 at googlemail.com
Sat Aug 11 19:45:52 CEST 2007


Philip Almeida wrote:

> I am trying to understand the PAC concept in LIB.
> 
> Please Elmar or anyone if you have time in a short way, how the 
> father-son relation is implemented in lib, that is, how the parent PAC
> structure is informed of a change in a child PAC structure.

Hi Philip,

to fit into the existing TS tree, the interface is that of the regular
plugin: 

$output = $USER->main($input, $config);

That shows the problem. You can inform the child by $config, but the child
only returns a string. A mechanism to inform the parent is not available at
the moment. Is it needed? Maybe you can give a practical example. 

The solution will either be a callback or some other voodoo unobvious pipes
of information like a callback object as parameter.

My todays work: 

http://wiki.typo3.org/index.php/MVC_Framework#Architecture_and_Design_Patterns

> 
> -----------------------------------------------------------------------------------------------------------
> Meanwhile I found this link Prof. Joëlle Coutaz the "mother" of PAC.
> http://iihm.imag.fr/coutaz/

That is a very interesting information. By the way, do you know the author
of the first compiler?

> Elmar you could invite her for a presentation, one of these days when LIB
> is shown in a conference or something.

If I will ever come into this situation, my first question will be, why she
didn't find a better name, that includes the aspect of the tree, which
makes it differnt to simple MVC.

Regards

Elmar










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