AbstractCoreUpdate.php

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<?php
namespace TYPO3\CMS\Install\Controller\Action\Ajax;

abstract class AbstractCoreUpdate extends AbstractAjaxAction {

    protected $view = NULL;

    protected $coreUpdateService;

    protected $statusUtility;

    protected $coreVersionService;

    protected function initializeHandle() {
        if (!$this->coreUpdateService->isCoreUpdateEnabled()) {
            throw new \TYPO3\CMS\Install\Controller\Exception(
                'Core Update disabled in this environment',
                1381609294
            );
        }
        $this->loadExtLocalconfDatabaseAndExtTables();
    }

    protected function getVersionToHandle() {
        $getVars = \TYPO3\CMS\Core\Utility\GeneralUtility::_GET('install');
        if (!isset($getVars['type'])) {
            throw new \TYPO3\CMS\Install\Controller\Exception(
                'Type must be set to either "regular" or "development"',
                1380975303
            );
        }
        $type = $getVars['type'];
        if ($type === 'development') {
            $versionToHandle = $this->coreVersionService->getYoungestPatchDevelopmentRelease();
        } else {
            $versionToHandle = $this->coreVersionService->getYoungestPatchRelease();
        }
        return $versionToHandle;
    }
}