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I am building a website with TYPO3 9.5 and the Fluid Powered TYPO3 extensions, and I will need to access GET and POST variables in my fluidpages templates.

I tried to create a custom PageController to do this ; here is the class I added in …myext/Classes/Controller/PageController.php :

<?php

namespace MyVendorMyExtController;

use FluidTYPO3FluidpagesController;

class PageController extends ControllerPageController

 protected function initializeViewVariables() 
 parent::initializeViewVariables();
 $GETarray = TYPO3CMSCoreUtilityGeneralUtility::_GET();
 $this->view->assign('GET', $GETarray);
 

Unfortunately, this method never seems to be executed, as if my class weren’t found. When I display GET in the template file with <f:debug>GET</f:debug>, the result is always NULL whatever parameters I added in the URL. I tried assigning another, fixed variable with view->assign, and it’s NULL too. The code above does not have syntax errors, I’m using PHPStorm, which finds the parent class and shows that my initializeViewVariables method overrides the one in AbstractFluxController.

What I have tried :

• I followed what the documentation explains here : registered my extension with a key of the form MyVendorName.Myextensionkey. I created a ClassAliasMap.php file, even though I don’t think it would be needed for TYPO3 9.5 ?


• in the composer.json file in my extension, I added :
  
  

  "autoload": 
   "psr-4": 
   "MyVendor\MyExt\": "Classes"
   
  
  

  
  
  and in the composer.json for my entire TYPO3 project, I put :
  
  

  "autoload": 
   "psr-4": 
   "MyVendor\MyExt\": "public/typo3conf/ext/myext/Classes"
   
  
  

  
  
  and I have verified that this path appears in vendor/composer/autoload_psr4.php after I used the composer dump-autoload command. I also have the autoload information in the ext_emconf.php file


• cleared all the caches in TYPO3


• I don’t have any error message either in TYPO3 or in the Apache logs when I view the page

And it still doesn’t work. Autoloading works if I call a method of a class in the Typoscript of a page with userFunc, however. Do you see what I am missing?

Answering my own question for now (hopefully I will be able to add more details later) : in order to have the above Controller be called for a certain page, we need to add an action, even an empty one, with the same name as the template. For example if our page template is Foo.html, it will work if we add an action method :

public function fooAction() 

to the PageController class