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<?php |
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namespace Backpack\CRUD\app\Library\Datatable; |
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use Backpack\CRUD\app\Library\CrudPanel\CrudPanel; |
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use Backpack\CRUD\app\Library\Widget; |
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use Backpack\CRUD\CrudManager; |
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use Illuminate\Support\Facades\Cache; |
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use Illuminate\View\Component; |
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class Datatable extends Component |
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{ |
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protected string $tableId; |
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public function __construct( |
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private string $controller, |
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private ?CrudPanel $crud = null, |
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private bool $modifiesUrl = false, |
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private ?\Closure $setup = null, |
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private ?string $name = null, |
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) { |
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// Set active controller for proper context |
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CrudManager::setActiveController($controller); |
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$this->crud ??= CrudManager::setupCrudPanel($controller, 'list'); |
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$this->tableId = $this->generateTableId(); |
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if ($this->setup) { |
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// Apply the configuration |
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($this->setup)($this->crud, $this->getParentCrudEntry()); |
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// Store the configuration in cache for Ajax requests |
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$this->cacheSetupClosure(); |
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} |
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if (! $this->crud->has('list.datatablesUrl')) { |
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$this->crud->set('list.datatablesUrl', $this->crud->getRoute()); |
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} |
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// Reset the active controller |
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CrudManager::unsetActiveController($controller); |
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} |
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private function getParentCrudEntry() |
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{ |
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$cruds = CrudManager::getCrudPanels(); |
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$parentCrud = reset($cruds); |
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if ($parentCrud && $parentCrud->getCurrentEntry()) { |
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CrudManager::storeInitializedOperation( |
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$parentCrud->controller, |
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$parentCrud->getCurrentOperation() |
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); |
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return $parentCrud->getCurrentEntry(); |
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} |
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return null; |
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} |
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private function generateTableId(): string |
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{ |
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$controllerPart = str_replace('\\', '_', $this->controller); |
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$namePart = $this->name ?? 'default'; |
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$uniqueId = md5($controllerPart.'_'.$namePart); |
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return 'crudTable_'.$uniqueId; |
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} |
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/** |
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* Store the datatable configuration in the cache for later use in Ajax requests. |
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*/ |
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private function cacheSetupClosure() |
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{ |
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if (! $this->setup) { |
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return; |
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} |
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$controllerClass = $this->controller; |
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$cruds = CrudManager::getCrudPanels(); |
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$parentCrud = reset($cruds); |
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if ($parentCrud && $parentCrud->getCurrentEntry()) { |
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$parentEntry = $parentCrud->getCurrentEntry(); |
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$parentController = $parentCrud->controller; |
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$cacheKey = 'datatable_config_'.$this->tableId; |
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Cache::forget($cacheKey); |
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// Store the controller class, parent entry, element type and name |
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Cache::put($cacheKey, [ |
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'controller' => $controllerClass, |
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'parentController' => $parentController, |
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'parent_entry' => $parentEntry, |
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'element_name' => $this->name, |
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'operations' => CrudManager::getInitializedOperations($parentController), |
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], now()->addHours(1)); |
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$this->crud->set('list.datatable_id', $this->tableId); |
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} |
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} |
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public static function applyCachedSetupClosure($crud) |
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{ |
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$tableId = request('datatable_id'); |
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if (! $tableId) { |
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\Log::debug('Missing datatable_id in request parameters'); |
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return false; |
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} |
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$cacheKey = 'datatable_config_'.$tableId; |
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$cachedData = Cache::get($cacheKey); |
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if (! $cachedData) { |
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return false; |
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} |
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try { |
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// Get the parent crud instance |
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self::initializeOperations($cachedData['parentController'], $cachedData['operations']); |
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$entry = $cachedData['parent_entry']; |
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$elementName = $cachedData['element_name']; |
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$widgets = Widget::collection(); |
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foreach ($widgets as $widget) { |
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if ($widget['type'] === 'datatable' && |
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(isset($widget['name']) && $widget['name'] === $elementName) && |
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(isset($widget['setup']) && $widget['setup'] instanceof \Closure)) { |
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$widget['setup']($crud, $entry); |
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return true; |
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} |
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} |
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return false; |
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} catch (\Exception $e) { |
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\Log::error('Error applying cached datatable config: '.$e->getMessage(), [ |
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'exception' => $e, |
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]); |
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} |
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return false; |
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} |
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private static function initializeOperations(string $parentController, $operations) |
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{ |
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$parentCrud = CrudManager::setupCrudPanel($parentController); |
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foreach($operations as $operation) { |
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$parentCrud->initialized = false; |
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CrudManager::setupCrudPanel($parentController, $operation); |
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} |
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} |
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public function render() |
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{ |
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return view('crud::datatable.datatable', [ |
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'crud' => $this->crud, |
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'modifiesUrl' => $this->modifiesUrl, |
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'tableId' => $this->tableId, |
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]); |
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} |
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} |
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Laravel-Backpack /
CRUD
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