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ElementEntityProcessor.php
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ElementEntityProcessor.php
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<?php
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
namespace TYPO3\CMS\Workspaces\Dependency;
use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\DataHandling\DataHandler;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Versioning\VersionState;
/**
* Processor having generic callback methods for element entities
*/
class ElementEntityProcessor
{
/**
* @var int
*/
protected $workspace;
/**
* @var DataHandler|null
*/
protected $dataHandler;
/**
* Sets the current workspace.
*
* @param int $workspace
*/
public function setWorkspace($workspace)
{
$this->workspace = (int)$workspace;
}
/**
* Gets the current workspace.
*
* @return int
*/
public function getWorkspace()
{
return $this->workspace;
}
/**
* @return DataHandler
*/
public function getDataHandler()
{
if (!isset($this->dataHandler)) {
$this->dataHandler = GeneralUtility::makeInstance(DataHandler::class);
}
return $this->dataHandler;
}
/**
* Transforms dependent elements to use the liveId as array key.
*
* @param array|ElementEntity[] $elements
* @return array
*/
public function transformDependentElementsToUseLiveId(array $elements)
{
$transformedElements = [];
/** @var ElementEntity $element */
foreach ($elements as $element) {
$elementName = ElementEntity::getIdentifier($element->getTable(), $element->getDataValue('liveId'));
$transformedElements[$elementName] = $element;
}
return $transformedElements;
}
/**
* Callback to determine whether a new child reference shall be considered in the dependency resolver utility.
*
* @param array $callerArguments
* @param array $targetArgument
* @param ElementEntity $caller
* @param string $eventName
* @return string|null Skip response (if required)
*/
public function createNewDependentElementChildReferenceCallback(array $callerArguments, array $targetArgument, ElementEntity $caller, $eventName)
{
// skip children in case ancestor is invalid
if ($caller->isInvalid()) {
return ElementEntity::RESPONSE_Skip;
}
$fieldConfiguration = BackendUtility::getTcaFieldConfiguration($caller->getTable(), $callerArguments['field']);
$inlineFieldType = $this->getDataHandler()->getInlineFieldType($fieldConfiguration);
if (!$fieldConfiguration || ($fieldConfiguration['type'] !== 'flex' && $inlineFieldType !== 'field' && $inlineFieldType !== 'list')) {
return ElementEntity::RESPONSE_Skip;
}
return null;
}
/**
* Callback to determine whether a new parent reference shall be considered in the dependency resolver utility.
*
* @param array $callerArguments
* @param array $targetArgument
* @param ElementEntity $caller
* @param string $eventName
* @return string|null Skip response (if required)
*/
public function createNewDependentElementParentReferenceCallback(array $callerArguments, array $targetArgument, ElementEntity $caller, $eventName)
{
$fieldConfiguration = BackendUtility::getTcaFieldConfiguration($callerArguments['table'], $callerArguments['field']);
$inlineFieldType = $this->getDataHandler()->getInlineFieldType($fieldConfiguration);
if (!$fieldConfiguration || ($fieldConfiguration['type'] !== 'flex' && $inlineFieldType !== 'field' && $inlineFieldType !== 'list')) {
return ElementEntity::RESPONSE_Skip;
}
return null;
}
/**
* Callback to determine whether a new child reference shall be considered in the dependency resolver utility.
* Only elements that are a delete placeholder are considered.
*
* @param array $callerArguments
* @param array $targetArgument
* @param ElementEntity $caller
* @param string $eventName
* @return string|null Skip response (if required)
*/
public function createClearDependentElementChildReferenceCallback(array $callerArguments, array $targetArgument, ElementEntity $caller, $eventName)
{
$response = $this->createNewDependentElementChildReferenceCallback($callerArguments, $targetArgument, $caller, $eventName);
if (empty($response)) {
$record = BackendUtility::getRecord($callerArguments['table'], $callerArguments['id']);
if (!VersionState::cast($record['t3ver_state'] ?? 0)->equals(VersionState::DELETE_PLACEHOLDER)) {
$response = ElementEntity::RESPONSE_Skip;
}
}
return $response;
}
/**
* Callback to determine whether a new parent reference shall be considered in the dependency resolver utility.
* Only elements that are a delete placeholder are considered.
*
* @param array $callerArguments
* @param array $targetArgument
* @param ElementEntity $caller
* @param string $eventName
* @return string|null Skip response (if required)
*/
public function createClearDependentElementParentReferenceCallback(array $callerArguments, array $targetArgument, ElementEntity $caller, $eventName)
{
$response = $this->createNewDependentElementParentReferenceCallback($callerArguments, $targetArgument, $caller, $eventName);
if (empty($response)) {
$record = BackendUtility::getRecord($callerArguments['table'], $callerArguments['id']);
if (!VersionState::cast($record['t3ver_state'] ?? 0)->equals(VersionState::DELETE_PLACEHOLDER)) {
$response = ElementEntity::RESPONSE_Skip;
}
}
return $response;
}
/**
* Callback to add additional data to new elements created in the dependency resolver utility.
*
* @throws \RuntimeException
* @param ElementEntity $caller
* @param array $callerArguments
* @param array $targetArgument
* @param string $eventName
*/
public function createNewDependentElementCallback(array $callerArguments, array $targetArgument, ElementEntity $caller, $eventName)
{
if (!BackendUtility::isTableWorkspaceEnabled($caller->getTable())) {
$caller->setInvalid(true);
return;
}
$versionRecord = $caller->getRecord();
// If version record does not exist, it probably has been deleted (cleared from workspace), this means,
// that the reference index still has an old reference pointer, which is "fine" for deleted parents
if (empty($versionRecord)) {
throw new \RuntimeException(
'Element "' . $caller::getIdentifier($caller->getTable(), $caller->getId()) . '" does not exist',
1393960943
);
}
$deleteFieldName = $GLOBALS['TCA'][$caller->getTable()]['ctrl']['delete'] ?? null;
// If version is on live workspace, but an "offline" ID is set, mark the record as invalid.
// This happens if a change has been discarded (clearWSID) - it will be removed from the command map.
if (
(int)$versionRecord['t3ver_oid'] > 0 && (
(int)$versionRecord['t3ver_wsid'] === 0 // behavior prior to v10.1 (backward compatibility)
|| !empty($deleteFieldName) && (int)$versionRecord['t3ver_wsid'] === $this->getWorkspace()
&& (int)$versionRecord[$deleteFieldName] > 0 // behavior since v10.1
)
) {
$caller->setDataValue('liveId', $caller->getId());
$caller->setInvalid(true);
return;
}
if ($caller->hasDataValue('liveId') === false) {
// Set the original uid from the version record
if (!empty($versionRecord['t3ver_oid']) && (int)$versionRecord['t3ver_wsid'] === $this->getWorkspace()) {
$caller->setDataValue('liveId', $versionRecord['t3ver_oid']);
} elseif ((int)$versionRecord['t3ver_wsid'] === 0 || (int)$versionRecord['t3ver_oid'] === 0) {
// The current version record is actually a live record or an accordant placeholder for live
$caller->setDataValue('liveId', $caller->getId());
$versionRecord = BackendUtility::getWorkspaceVersionOfRecord(
$this->getWorkspace(),
$caller->getTable(),
$caller->getId(),
'uid,t3ver_state'
);
// Set version uid to caller, most likely it's a delete placeholder
// for a child record that is not recognized in the reference index
if (!empty($versionRecord['uid'])) {
$caller->setId($versionRecord['uid']);
} else {
// If no version could be determined, mark record as invalid
// (thus, it will be removed from the command map)
$caller->setInvalid(true);
}
} else {
// In case of an unexpected record state, mark the record as invalid
$caller->setInvalid(true);
}
}
}
}