扩展自定义 TYPO3 9.5 扩展时出现问题 - 我无法在 controller 中添加操作

Question

In FE I have an error

(1/1) #1186669086 TYPO3\CMS\Extbase\Mvc\Exception\NoSuchActionException
An action "showcandidateAction" does not exist in controller "Myvendor\VvApplicationform\Controller\ApplicationformController".

In ext_localconf.php I have a this

\TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin(
 'Myvendor.VvApplicationform',
    'Candidateform',
    array(
        'Applicationform' => 'showcandidate',
    ),
    array(
        'Applicationform' => 'showcandidate',
    )
);

When I change the action in ext_localconf.php to another - I see correct form in FE. In controller - applicationform/Classes/Controller/ApplicationformController.php:

/*
  * @param \Myvendor\VvApplicationform\Domain\Model\CandidateApplication $application
  * @return void
  */
public function showcandidateAction(\Myvendor\VvApplicationform\Domain\Model\CandidateApplication $application = null) {
...
}

After changes I clear all cache and Dump autoload. But still have an error in FE. Of course I have a template here 'applicationform/Resources/Private/Templates/Applicationform/Showcandidate.html'

UP1 I forgot to notify that I'm using TYPO3 9.5

UP2 This is a registerPlugin in ext_tables.php: \TYPO3\CMS\Extbase\Utility\ExtensionUtility::registerPlugin('Myvendor.VvApplicationform', 'Candidateform', 'Candidate Form');

UP3 - directory of this ext named vv_applicationform. I've updated wrong names in initial post. This is ApplicationformController.php

 namespace Myvendor\VvApplicationform\Controller;
    /**
 * Class ApplicationformController
 *
 * @package Myvendor\VvApplicationform\Controller
 */
class ApplicationformController extends ActionController
{

Answer 1

You've to configure your plugin differently:

\TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin(
 'applicationform',
    'Candidateform',
    array(
        Myvendor\Applicationform\Controller\ApplicationformController::class => 'showcandidate',
    ),
    array(
        Myvendor\Applicationform\Controller\ApplicationformController::class => 'showcandidate',
    )
);

A description about it you find here:
https://docs.typo3.org/m/typo3/reference-coreapi/11.5/en-us/ExtensionArchitecture/Extbase/Reference/FrontendPlugins.html#id2

Answer 2

I think there is a typo in CamelCase-writing.

Extensionfolder: vv_applicationform Namespace: Myvendor\VvApplicationform...

And then in ext_localconf.php is the bug. Replace 'Myvendor.Vvapplicationform' with 'Myvendor.VvApplicationform'

\TYPO3\CMS\Extbase\Utility\ExtensionUtility::configurePlugin(
 'Myvendor.VvApplicationform',
    'Candidateform',
    [
        'Applicationform' => 'showcandidate',
    ],
    [
        'Applicationform' => 'showcandidate',
    ]
);

From ExtensionUtility::configurePlugin(...)

 * @param string $extensionName The extension name (in UpperCamelCase) or the extension key (in lower_underscore)

Answer 3

Finally I solved this issue. I was a stupid error - backup copy directory inside Controller directory. This is my tree:

-Controller
--Mybak_folder
  -ApplicationformController.php
--ApplicationformController.php

When I deleted directory "Mybak_folder" and Dump autoload from TYPO3 Maintenance I solved this problem... Thanks for all who trying to help