TYPO3 /
TYPO3.CMS
| Total Complexity | 111 |
| Total Lines | 589 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like TreeController often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use TreeController, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 47 | class TreeController |
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| 48 | { |
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| 49 | /** |
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| 50 | * Option to use the nav_title field for outputting in the tree items, set via userTS. |
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| 51 | * |
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| 52 | * @var bool |
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| 53 | */ |
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| 54 | protected $useNavTitle = false; |
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| 55 | |||
| 56 | /** |
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| 57 | * Option to prefix the page ID when outputting the tree items, set via userTS. |
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| 58 | * |
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| 59 | * @var bool |
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| 60 | */ |
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| 61 | protected $addIdAsPrefix = false; |
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| 62 | |||
| 63 | /** |
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| 64 | * Option to prefix the domain name of sys_domains when outputting the tree items, set via userTS. |
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| 65 | * |
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| 66 | * @var bool |
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| 67 | */ |
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| 68 | protected $addDomainName = false; |
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| 69 | |||
| 70 | /** |
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| 71 | * Option to add the rootline path above each mount point, set via userTS. |
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| 72 | * |
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| 73 | * @var bool |
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| 74 | */ |
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| 75 | protected $showMountPathAboveMounts = false; |
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| 76 | |||
| 77 | /** |
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| 78 | * An array of background colors for a branch in the tree, set via userTS. |
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| 79 | * |
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| 80 | * @var array |
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| 81 | */ |
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| 82 | protected $backgroundColors = []; |
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| 83 | |||
| 84 | /** |
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| 85 | * A list of pages not to be shown. |
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| 86 | * |
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| 87 | * @var array |
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| 88 | */ |
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| 89 | protected $hiddenRecords = []; |
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| 90 | |||
| 91 | /** |
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| 92 | * Contains the state of all items that are expanded. |
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| 93 | * |
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| 94 | * @var array |
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| 95 | */ |
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| 96 | protected $expandedState = []; |
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| 97 | |||
| 98 | /** |
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| 99 | * Instance of the icon factory, to be used for generating the items. |
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| 100 | * |
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| 101 | * @var IconFactory |
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| 102 | */ |
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| 103 | protected $iconFactory; |
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| 104 | |||
| 105 | /** |
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| 106 | * Number of tree levels which should be returned on the first page tree load |
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| 107 | * |
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| 108 | * @var int |
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| 109 | */ |
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| 110 | protected $levelsToFetch = 2; |
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| 111 | |||
| 112 | /** |
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| 113 | * When set to true all nodes returend by API will be expanded |
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| 114 | * @var bool |
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| 115 | */ |
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| 116 | protected $expandAllNodes = false; |
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| 117 | |||
| 118 | /** |
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| 119 | * Constructor to set up common objects needed in various places. |
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| 120 | */ |
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| 121 | public function __construct() |
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| 122 | { |
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| 123 | $this->iconFactory = GeneralUtility::makeInstance(IconFactory::class); |
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| 124 | } |
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| 125 | |||
| 126 | protected function initializeConfiguration() |
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| 127 | { |
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| 128 | $userTsConfig = $this->getBackendUser()->getTSConfig(); |
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| 129 | $this->hiddenRecords = GeneralUtility::intExplode( |
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| 130 | ',', |
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| 131 | $userTsConfig['options.']['hideRecords.']['pages'] ?? '', |
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| 132 | true |
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| 133 | ); |
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| 134 | $this->backgroundColors = $userTsConfig['options.']['pageTree.']['backgroundColor.'] ?? []; |
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| 135 | $this->addIdAsPrefix = (bool)($userTsConfig['options.']['pageTree.']['showPageIdWithTitle'] ?? false); |
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| 136 | $this->addDomainName = (bool)($userTsConfig['options.']['pageTree.']['showDomainNameWithTitle'] ?? false); |
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| 137 | $this->useNavTitle = (bool)($userTsConfig['options.']['pageTree.']['showNavTitle'] ?? false); |
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| 138 | $this->showMountPathAboveMounts = (bool)($userTsConfig['options.']['pageTree.']['showPathAboveMounts'] ?? false); |
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| 139 | $backendUserConfiguration = GeneralUtility::makeInstance(BackendUserConfiguration::class); |
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| 140 | $this->expandedState = $backendUserConfiguration->get('BackendComponents.States.Pagetree'); |
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| 141 | if (is_object($this->expandedState) && is_object($this->expandedState->stateHash)) { |
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| 142 | $this->expandedState = (array)$this->expandedState->stateHash; |
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| 143 | } else { |
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| 144 | $this->expandedState = $this->expandedState['stateHash'] ?: []; |
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| 145 | } |
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| 146 | } |
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| 147 | |||
| 148 | /** |
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| 149 | * Returns page tree configuration in JSON |
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| 150 | * |
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| 151 | * @return ResponseInterface |
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| 152 | */ |
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| 153 | public function fetchConfigurationAction(): ResponseInterface |
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| 154 | { |
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| 155 | $configuration = [ |
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| 156 | 'allowRecursiveDelete' => !empty($this->getBackendUser()->uc['recursiveDelete']), |
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| 157 | 'allowDragMove' => $this->isDragMoveAllowed(), |
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| 158 | 'doktypes' => $this->getDokTypes(), |
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| 159 | 'displayDeleteConfirmation' => $this->getBackendUser()->jsConfirmation(JsConfirmation::DELETE), |
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| 160 | 'temporaryMountPoint' => $this->getMountPointPath((int)($this->getBackendUser()->uc['pageTree_temporaryMountPoint'] ?? 0)), |
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| 161 | ]; |
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| 162 | |||
| 163 | return new JsonResponse($configuration); |
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| 164 | } |
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| 165 | |||
| 166 | /** |
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| 167 | * Returns the list of doktypes to display in page tree toolbar drag area |
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| 168 | * |
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| 169 | * Note: The list can be filtered by the user TypoScript |
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| 170 | * option "options.pageTree.doktypesToShowInNewPageDragArea". |
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| 171 | * |
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| 172 | * @return array |
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| 173 | */ |
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| 174 | protected function getDokTypes(): array |
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| 175 | { |
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| 176 | $backendUser = $this->getBackendUser(); |
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| 177 | $doktypeLabelMap = []; |
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| 178 | foreach ($GLOBALS['TCA']['pages']['columns']['doktype']['config']['items'] as $doktypeItemConfig) { |
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| 179 | if ($doktypeItemConfig[1] === '--div--') { |
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| 180 | continue; |
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| 181 | } |
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| 182 | $doktypeLabelMap[$doktypeItemConfig[1]] = $doktypeItemConfig[0]; |
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| 183 | } |
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| 184 | $doktypes = GeneralUtility::intExplode(',', $backendUser->getTSConfig()['options.']['pageTree.']['doktypesToShowInNewPageDragArea'] ?? '', true); |
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| 185 | $output = []; |
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| 186 | $allowedDoktypes = GeneralUtility::intExplode(',', $backendUser->groupData['pagetypes_select'], true); |
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| 187 | $isAdmin = $backendUser->isAdmin(); |
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| 188 | // Early return if backend user may not create any doktype |
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| 189 | if (!$isAdmin && empty($allowedDoktypes)) { |
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| 190 | return $output; |
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| 191 | } |
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| 192 | foreach ($doktypes as $doktype) { |
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| 193 | if (!$isAdmin && !in_array($doktype, $allowedDoktypes, true)) { |
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| 194 | continue; |
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| 195 | } |
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| 196 | $label = htmlspecialchars($this->getLanguageService()->sL($doktypeLabelMap[$doktype])); |
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| 197 | $output[] = [ |
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| 198 | 'nodeType' => $doktype, |
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| 199 | 'icon' => $GLOBALS['TCA']['pages']['ctrl']['typeicon_classes'][$doktype] ?? '', |
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| 200 | 'title' => $label, |
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| 201 | 'tooltip' => $label |
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| 202 | ]; |
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| 203 | } |
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| 204 | return $output; |
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| 205 | } |
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| 206 | |||
| 207 | /** |
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| 208 | * Returns JSON representing page tree |
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| 209 | * |
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| 210 | * @param ServerRequestInterface $request |
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| 211 | * @return ResponseInterface |
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| 212 | */ |
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| 213 | public function fetchDataAction(ServerRequestInterface $request): ResponseInterface |
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| 214 | { |
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| 215 | $this->initializeConfiguration(); |
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| 216 | |||
| 217 | $items = []; |
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| 218 | if (!empty($request->getQueryParams()['pid'])) { |
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| 219 | // Fetching a part of a page tree |
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| 220 | $entryPoints = $this->getAllEntryPointPageTrees((int)$request->getQueryParams()['pid']); |
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| 221 | $mountPid = (int)($request->getQueryParams()['mount'] ?? 0); |
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| 222 | $parentDepth = (int)($request->getQueryParams()['pidDepth'] ?? 0); |
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| 223 | $this->levelsToFetch = $parentDepth + $this->levelsToFetch; |
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| 224 | foreach ($entryPoints as $page) { |
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| 225 | $items = array_merge($items, $this->pagesToFlatArray($page, $mountPid, $parentDepth)); |
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| 226 | } |
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| 227 | } else { |
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| 228 | $entryPoints = $this->getAllEntryPointPageTrees(); |
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| 229 | foreach ($entryPoints as $page) { |
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| 230 | $items = array_merge($items, $this->pagesToFlatArray($page, (int)$page['uid'])); |
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| 231 | } |
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| 232 | } |
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| 233 | |||
| 234 | return new JsonResponse($items); |
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| 235 | } |
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| 236 | |||
| 237 | /** |
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| 238 | * Returns JSON representing page tree filtered by keyword |
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| 239 | * |
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| 240 | * @param ServerRequestInterface $request |
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| 241 | * @return ResponseInterface |
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| 242 | */ |
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| 243 | public function filterDataAction(ServerRequestInterface $request): ResponseInterface |
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| 244 | { |
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| 245 | $searchQuery = $request->getQueryParams()['q'] ?? ''; |
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| 246 | if (trim($searchQuery) === '') { |
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| 247 | return new JsonResponse([]); |
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| 248 | } |
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| 249 | |||
| 250 | $this->initializeConfiguration(); |
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| 251 | $this->expandAllNodes = true; |
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| 252 | |||
| 253 | $items = []; |
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| 254 | $entryPoints = $this->getAllEntryPointPageTrees(0, $searchQuery); |
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| 255 | |||
| 256 | foreach ($entryPoints as $page) { |
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| 257 | if (!empty($page)) { |
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| 258 | $items = array_merge($items, $this->pagesToFlatArray($page, (int)$page['uid'])); |
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| 259 | } |
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| 260 | } |
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| 261 | |||
| 262 | return new JsonResponse($items); |
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| 263 | } |
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| 264 | |||
| 265 | /** |
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| 266 | * Sets a temporary mount point |
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| 267 | * |
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| 268 | * @param ServerRequestInterface $request |
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| 269 | * @return ResponseInterface |
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| 270 | * @throws \RuntimeException |
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| 271 | */ |
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| 272 | public function setTemporaryMountPointAction(ServerRequestInterface $request): ResponseInterface |
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| 273 | { |
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| 274 | if (empty($request->getParsedBody()['pid'])) { |
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| 275 | throw new \RuntimeException( |
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| 276 | 'Required "pid" parameter is missing.', |
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| 277 | 1511792197 |
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| 278 | ); |
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| 279 | } |
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| 280 | $pid = (int)$request->getParsedBody()['pid']; |
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| 281 | |||
| 282 | $this->getBackendUser()->uc['pageTree_temporaryMountPoint'] = $pid; |
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| 283 | $this->getBackendUser()->writeUC(); |
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| 284 | $response = [ |
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| 285 | 'mountPointPath' => $this->getMountPointPath($pid) |
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| 286 | ]; |
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| 287 | return new JsonResponse($response); |
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| 288 | } |
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| 289 | |||
| 290 | /** |
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| 291 | * Converts nested tree structure produced by PageTreeRepository to a flat, one level array |
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| 292 | * and also adds visual representation information to the data. |
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| 293 | * |
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| 294 | * @param array $page |
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| 295 | * @param int $entryPoint |
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| 296 | * @param int $depth |
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| 297 | * @param array $inheritedData |
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| 298 | * @return array |
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| 299 | */ |
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| 300 | protected function pagesToFlatArray(array $page, int $entryPoint, int $depth = 0, array $inheritedData = []): array |
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| 301 | { |
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| 302 | $backendUser = $this->getBackendUser(); |
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| 303 | $pageId = (int)$page['uid']; |
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| 304 | if (in_array($pageId, $this->hiddenRecords, true)) { |
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| 305 | return []; |
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| 306 | } |
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| 307 | if ($pageId === 0 && !$backendUser->isAdmin()) { |
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| 308 | return []; |
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| 309 | } |
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| 310 | |||
| 311 | $stopPageTree = !empty($page['php_tree_stop']) && $depth > 0; |
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| 312 | $identifier = $entryPoint . '_' . $pageId; |
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| 313 | $expanded = !empty($page['expanded']) |
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| 314 | || (isset($this->expandedState[$identifier]) && $this->expandedState[$identifier]) |
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| 315 | || $this->expandAllNodes; |
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| 316 | |||
| 317 | $backgroundColor = !empty($this->backgroundColors[$pageId]) ? $this->backgroundColors[$pageId] : ($inheritedData['backgroundColor'] ?? ''); |
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| 318 | |||
| 319 | $suffix = ''; |
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| 320 | $prefix = ''; |
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| 321 | $nameSourceField = 'title'; |
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| 322 | $visibleText = $page['title']; |
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| 323 | $tooltip = BackendUtility::titleAttribForPages($page, '', false); |
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| 324 | if ($pageId !== 0) { |
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| 325 | $icon = $this->iconFactory->getIconForRecord('pages', $page, Icon::SIZE_SMALL); |
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| 326 | } else { |
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| 327 | $icon = $this->iconFactory->getIcon('apps-pagetree-root', Icon::SIZE_SMALL); |
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| 328 | } |
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| 329 | |||
| 330 | if ($this->useNavTitle && trim($page['nav_title'] ?? '') !== '') { |
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| 331 | $nameSourceField = 'nav_title'; |
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| 332 | $visibleText = $page['nav_title']; |
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| 333 | } |
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| 334 | if (trim($visibleText) === '') { |
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| 335 | $visibleText = htmlspecialchars('[' . $this->getLanguageService()->sL('LLL:EXT:core/Resources/Private/Language/locallang_core.xlf:labels.no_title') . ']'); |
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| 336 | } |
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| 337 | |||
| 338 | if ($this->addDomainName && $page['is_siteroot']) { |
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| 339 | $domain = $this->getDomainNameForPage($pageId); |
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| 340 | $suffix = $domain !== '' ? ' [' . $domain . ']' : ''; |
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| 341 | } |
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| 342 | |||
| 343 | $lockInfo = BackendUtility::isRecordLocked('pages', $pageId); |
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| 344 | if (is_array($lockInfo)) { |
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| 345 | $tooltip .= ' - ' . $lockInfo['msg']; |
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| 346 | } |
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| 347 | if ($this->addIdAsPrefix) { |
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| 348 | $prefix = htmlspecialchars('[' . $pageId . '] '); |
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| 349 | } |
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| 350 | |||
| 351 | $items = []; |
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| 352 | $item = [ |
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| 353 | // Used to track if the tree item is collapsed or not |
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| 354 | 'stateIdentifier' => $identifier, |
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| 355 | 'identifier' => $pageId, |
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| 356 | 'depth' => $depth, |
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| 357 | 'tip' => htmlspecialchars($tooltip), |
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| 358 | 'icon' => $icon->getIdentifier(), |
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| 359 | 'name' => $visibleText, |
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| 360 | 'nameSourceField' => $nameSourceField, |
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| 361 | 'mountPoint' => $entryPoint, |
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| 362 | 'workspaceId' => !empty($page['t3ver_oid']) ? $page['t3ver_oid'] : $pageId, |
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| 363 | 'siblingsCount' => $page['siblingsCount'] ?? 1, |
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| 364 | 'siblingsPosition' => $page['siblingsPosition'] ?? 1, |
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| 365 | 'allowDelete' => $backendUser->doesUserHaveAccess($page, Permission::PAGE_DELETE), |
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| 366 | 'allowEdit' => $backendUser->doesUserHaveAccess($page, Permission::PAGE_EDIT) |
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| 367 | && $backendUser->check('tables_modify', 'pages') |
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| 368 | && $backendUser->checkLanguageAccess(0) |
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| 369 | ]; |
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| 370 | |||
| 371 | if (!empty($page['_children']) || $this->getPageTreeRepository()->hasChildren($pageId)) { |
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| 372 | $item['hasChildren'] = true; |
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| 373 | if ($depth >= $this->levelsToFetch) { |
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| 374 | $page = $this->getPageTreeRepository()->getTreeLevels($page, 1); |
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| 375 | } |
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| 376 | } |
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| 377 | if (!empty($prefix)) { |
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| 378 | $item['prefix'] = htmlspecialchars($prefix); |
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| 379 | } |
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| 380 | if (!empty($suffix)) { |
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| 381 | $item['suffix'] = htmlspecialchars($suffix); |
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| 382 | } |
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| 383 | if (is_array($lockInfo)) { |
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| 384 | $item['locked'] = true; |
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| 385 | } |
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| 386 | if ($icon->getOverlayIcon()) { |
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| 387 | $item['overlayIcon'] = $icon->getOverlayIcon()->getIdentifier(); |
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| 388 | } |
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| 389 | if ($expanded && is_array($page['_children']) && !empty($page['_children'])) { |
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| 390 | $item['expanded'] = $expanded; |
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| 391 | } |
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| 392 | if ($backgroundColor) { |
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| 393 | $item['backgroundColor'] = htmlspecialchars($backgroundColor); |
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| 394 | } |
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| 395 | if ($stopPageTree) { |
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| 396 | $item['stopPageTree'] = $stopPageTree; |
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| 397 | } |
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| 398 | $class = $this->resolvePageCssClassNames($page); |
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| 399 | if (!empty($class)) { |
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| 400 | $item['class'] = $class; |
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| 401 | } |
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| 402 | if ($depth === 0) { |
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| 403 | $item['isMountPoint'] = true; |
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| 404 | |||
| 405 | if ($this->showMountPathAboveMounts) { |
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| 406 | $item['readableRootline'] = $this->getMountPointPath($pageId); |
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| 407 | } |
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| 408 | } |
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| 409 | |||
| 410 | $items[] = $item; |
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| 411 | if (!$stopPageTree && is_array($page['_children']) && !empty($page['_children']) && ($depth < $this->levelsToFetch || $expanded)) { |
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| 412 | $siblingsCount = count($page['_children']); |
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| 413 | $siblingsPosition = 0; |
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| 414 | $items[key($items)]['loaded'] = true; |
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| 415 | foreach ($page['_children'] as $child) { |
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| 416 | $child['siblingsCount'] = $siblingsCount; |
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| 417 | $child['siblingsPosition'] = ++$siblingsPosition; |
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| 418 | $items = array_merge($items, $this->pagesToFlatArray($child, $entryPoint, $depth + 1, ['backgroundColor' => $backgroundColor])); |
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| 419 | } |
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| 420 | } |
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| 421 | return $items; |
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| 422 | } |
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| 423 | |||
| 424 | protected function getPageTreeRepository(): PageTreeRepository |
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| 425 | { |
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| 426 | $backendUser = $this->getBackendUser(); |
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| 427 | $userTsConfig = $backendUser->getTSConfig(); |
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| 428 | $excludedDocumentTypes = GeneralUtility::intExplode(',', $userTsConfig['options.']['pageTree.']['excludeDoktypes'] ?? '', true); |
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| 429 | |||
| 430 | $additionalQueryRestrictions = []; |
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| 431 | if (!empty($excludedDocumentTypes)) { |
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| 432 | $additionalQueryRestrictions[] = GeneralUtility::makeInstance(DocumentTypeExclusionRestriction::class, $excludedDocumentTypes); |
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| 433 | } |
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| 434 | $additionalQueryRestrictions[] = GeneralUtility::makeInstance(PagePermissionRestriction::class, GeneralUtility::makeInstance(Context::class)->getAspect('backend.user'), Permission::PAGE_SHOW); |
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| 435 | |||
| 436 | return GeneralUtility::makeInstance( |
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| 437 | PageTreeRepository::class, |
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| 438 | (int)$backendUser->workspace, |
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| 439 | [], |
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| 440 | $additionalQueryRestrictions |
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| 441 | ); |
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| 442 | } |
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| 443 | |||
| 444 | /** |
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| 445 | * Fetches all pages for all tree entry points the user is allowed to see |
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| 446 | * |
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| 447 | * @param int $startPid |
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| 448 | * @param string $query The search query can either be a string to be found in the title or the nav_title of a page or the uid of a page. |
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| 449 | * @return array |
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| 450 | */ |
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| 451 | protected function getAllEntryPointPageTrees(int $startPid = 0, string $query = ''): array |
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| 524 | } |
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| 525 | |||
| 526 | /** |
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| 527 | * Returns the first configured domain name for a page |
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| 528 | * |
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| 529 | * @param int $pageId |
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| 530 | * @return string |
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| 531 | */ |
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| 532 | protected function getDomainNameForPage(int $pageId): string |
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| 533 | { |
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| 534 | $domain = ''; |
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| 535 | $siteFinder = GeneralUtility::makeInstance(SiteFinder::class); |
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| 536 | try { |
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| 537 | $site = $siteFinder->getSiteByRootPageId($pageId); |
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| 538 | $domain = (string)$site->getBase(); |
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| 539 | } catch (SiteNotFoundException $e) { |
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| 540 | // No site found |
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| 541 | } |
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| 542 | |||
| 543 | return $domain; |
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| 544 | } |
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| 545 | |||
| 546 | /** |
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| 547 | * Returns the mount point path for a temporary mount or the given id |
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| 548 | * |
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| 549 | * @param int $uid |
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| 550 | * @return string |
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| 551 | */ |
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| 552 | protected function getMountPointPath(int $uid): string |
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| 553 | { |
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| 554 | if ($uid <= 0) { |
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| 555 | return ''; |
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| 556 | } |
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| 557 | $rootline = array_reverse(BackendUtility::BEgetRootLine($uid)); |
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| 558 | array_shift($rootline); |
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| 559 | $path = []; |
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| 560 | foreach ($rootline as $rootlineElement) { |
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| 561 | $record = BackendUtility::getRecordWSOL('pages', $rootlineElement['uid'], 'title, nav_title', '', true, true); |
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| 562 | $text = $record['title']; |
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| 563 | if ($this->useNavTitle && trim($record['nav_title'] ?? '') !== '') { |
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| 564 | $text = $record['nav_title']; |
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| 565 | } |
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| 566 | $path[] = htmlspecialchars($text); |
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| 567 | } |
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| 568 | return '/' . implode('/', $path); |
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| 569 | } |
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| 570 | |||
| 571 | /** |
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| 572 | * Fetches possible css class names to be used when a record was modified in a workspace |
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| 573 | * |
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| 574 | * @param array $page Page record (workspace overlaid) |
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| 575 | * @return string CSS class names to be applied |
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| 576 | */ |
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| 577 | protected function resolvePageCssClassNames(array $page): string |
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| 578 | { |
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| 579 | $classes = []; |
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| 580 | |||
| 581 | if ($page['uid'] === 0) { |
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| 582 | return ''; |
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| 583 | } |
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| 584 | $workspaceId = (int)$this->getBackendUser()->workspace; |
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| 585 | if ($workspaceId > 0 && ExtensionManagementUtility::isLoaded('workspaces')) { |
||
| 586 | if ($page['t3ver_oid'] > 0 && (int)$page['t3ver_wsid'] === $workspaceId) { |
||
| 587 | $classes[] = 'ver-element'; |
||
| 588 | $classes[] = 'ver-versions'; |
||
| 589 | } elseif ( |
||
| 590 | $this->getWorkspaceService()->hasPageRecordVersions( |
||
| 591 | $workspaceId, |
||
| 592 | $page['t3ver_oid'] ?: $page['uid'] |
||
| 593 | ) |
||
| 594 | ) { |
||
| 595 | $classes[] = 'ver-versions'; |
||
| 596 | } |
||
| 597 | } |
||
| 598 | |||
| 599 | return implode(' ', $classes); |
||
| 600 | } |
||
| 601 | |||
| 602 | /** |
||
| 603 | * Check if drag-move in the svg tree is allowed for the user |
||
| 604 | * |
||
| 605 | * @return bool |
||
| 606 | */ |
||
| 607 | protected function isDragMoveAllowed(): bool |
||
| 608 | { |
||
| 609 | $backendUser = $this->getBackendUser(); |
||
| 610 | return $backendUser->isAdmin() |
||
| 611 | || ($backendUser->check('tables_modify', 'pages') && $backendUser->checkLanguageAccess(0)); |
||
| 612 | } |
||
| 613 | |||
| 614 | /** |
||
| 615 | * @return WorkspaceService |
||
| 616 | */ |
||
| 617 | protected function getWorkspaceService(): WorkspaceService |
||
| 618 | { |
||
| 619 | return GeneralUtility::makeInstance(WorkspaceService::class); |
||
| 620 | } |
||
| 621 | |||
| 622 | /** |
||
| 623 | * @return BackendUserAuthentication |
||
| 624 | */ |
||
| 625 | protected function getBackendUser(): BackendUserAuthentication |
||
| 628 | } |
||
| 629 | |||
| 630 | /** |
||
| 631 | * @return LanguageService|null |
||
| 632 | */ |
||
| 633 | protected function getLanguageService(): ?LanguageService |
||
| 636 | } |
||
| 637 | } |
||
| 638 |
In PHP, under loose comparison (like
==, or!=, orswitchconditions), values of different types might be equal.For
integervalues, zero is a special case, in particular the following results might be unexpected: