[development] is drupal a MVC stuff

[larry at garfieldtech.com]

Andrew Berry wrote:
> On 2009-12-11, at 9:33 AM, Damien Tournoud wrote:
> 
>> a big part of the view and the controller is
>> actually handled by the browser.
> 
> This is true for how %99.9 percent of the Drupal installations out there, but a "view" doesn't have to be graphical. A View could be RSS, XML, Postscript, etc. IMO the $page array in D7 brings Drupal much closer to an MVC-like design, as you now have an abstracted representation of data before it's processed by the View (whatever your theme_* and .tpl.php files do).
> 
> --Andrew

The defining attribute of MVC is, IMO, that the View component has 
direct access to the Model component using an observer relationship, 
without going through a separate Controller.

hook_page_alter() is in no way a direct observer relationship between 
the View component and the Model component.  *_alter hooks are a 
pipes-and-filter approach, or, arguably, visitor pattern.

Drupal is very much not an MVC design.  It's not true PAC either, but I 
have and do argue that it is closer to PAC than MVC.

Someone needs to correct the Wikipedia page, which is simply wrong in 
this regard.

--Larry Garfield