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<?php |
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/** |
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* This component creates a dropdown of possible data object classes and a button to create a new instance. |
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* |
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*/ |
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class GridFieldDropdownAddNewButton extends GridFieldAddNewButton |
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implements GridField_ActionProvider { |
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/** |
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* Class names |
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* |
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* @var array |
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*/ |
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protected $modelClasses = null; |
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/** |
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* This is because this doesn't extend Object |
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* |
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*/ |
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public static function create($baseClass, $classes, $targetFragment = 'buttons-before-left') |
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{ |
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return new GridFieldDropdownAddNewButton($baseClass, $classes, $targetFragment); |
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} |
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/** |
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* @param string $baseClass |
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* @param array $classes Class or list of classes to create. |
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* @param string $targetFragment The fragment to render the button into |
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*/ |
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public function __construct($baseClass, $classes, $targetFragment = 'buttons-before-left') |
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{ |
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if (!is_array($classes)) { |
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user_error('$classes is not an array', E_USER_ERROR); |
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} |
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$this->setClasses($classes); |
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foreach($this->getClasses() as $class => $nice){ |
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if(!is_subclass_of($class, $baseClass)){ |
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user_error(sprintf('%s is not a subclass of %s', $class, $baseClass), E_USER_ERROR); |
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} |
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} |
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parent::__construct($targetFragment); |
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} |
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/** |
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* Specify the classes to create |
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* |
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* @param array $classes |
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*/ |
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public function setClasses($classes) |
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{ |
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$this->modelClasses = $classes; |
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} |
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/** |
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* Get the classes of the objects to create |
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* |
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* @return array |
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*/ |
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public function getClasses() |
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{ |
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return $this->modelClasses; |
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} |
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/** |
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* Abstract method to fill out. Gets the HTML for this component |
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* @param $gridField GridField |
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*/ |
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public function getHTMLFragments($gridField) |
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{ |
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$state = $gridField->State->GridFieldDropdownAddNewButton; |
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$classesSource = $this->getClasses(); |
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if(empty($classesSource)) { |
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return []; |
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} else if(count($classesSource) > 1) { |
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$dropdown = DropdownField::create( |
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"Class", |
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"Class", |
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$classesSource |
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)->setFieldHolderTemplate("GridFieldDropdownAddNewButton_holder") |
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->addExtraClass("gridfield-dropdown no-change-track"); |
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if (!$this->buttonName) { |
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$this->buttonName = 'Add new'; |
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} |
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} else { |
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$class = key($classesSource); |
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$dropdown = HiddenField::create( |
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"Class", |
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"Class", |
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$class |
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); |
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if (!$this->buttonName) { |
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$this->buttonName = sprintf('Add new %s', $class); |
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} |
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} |
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$state->class = key($classesSource); |
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$action = GridField_FormAction::create( |
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$gridField, |
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'add', |
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$this->buttonName, |
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'add', |
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'add' |
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)->setAttribute( |
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'data-icon', |
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'add' |
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)->addExtraClass("no-ajax ss-ui-action-constructive dropdown-action"); |
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Requirements::css(CONTENTBLOCKS_DIR . "/css/GridFieldDropdownAddNewButton.css"); |
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Requirements::javascript(CONTENTBLOCKS_DIR . "/javascript/GridFieldDropdownAddNewButton.js"); |
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return [ |
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$this->targetFragment => ArrayData::create([ |
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'Fields' => ArrayList::create([ |
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$dropdown, |
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$action, |
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]), |
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])->renderWith("GridFieldDropdownAddNewButton"), |
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]; |
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} |
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/** |
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* Provide actions to this component. |
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* |
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* @param GridField $gridField |
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* @return array |
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**/ |
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public function getActions($gridField) { |
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return ["add"]; |
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} |
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/** |
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* Handles the add action |
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* |
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* @param GridField $gridField |
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* @param string $actionName |
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* @param mixed $arguments |
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* @param array $data |
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**/ |
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public function handleAction(GridField $gridField, $actionName, $arguments, $data) |
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{ |
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$response = $gridField->getForm()->controller->response; |
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if(in_array(strtolower($actionName), $this->getActions($gridField))) { |
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$class = null; |
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$name = $gridField->getName(); |
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if (isset($data[$name]) && isset($data[$name]['GridState'])){ |
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$state = json_decode($data[$name]['GridState'], true); |
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// Debug::dump($state); |
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if (isset($state['GridFieldDropdownAddNewButton']) |
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&& isset($state['GridFieldDropdownAddNewButton']['class'])) { |
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$class = $state['GridFieldDropdownAddNewButton']['class']; |
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} |
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} |
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if(!$class || !$this->isValidClass($class)) { |
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return Controller::curr()->redirectBack(); |
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} |
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$list = $gridField->getList(); |
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$object = $class::create(); |
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$object->write(); |
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$list->add($object); |
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$url = Controller::join_links($gridField->link('item'), $object->ID); |
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$response->redirect(Director::absoluteBaseURL() . $url); |
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return $response; |
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} |
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return Controller::curr()->redirectBack(); |
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} |
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/** |
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* Validates that a class is okay for creation |
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* |
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* @param string |
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* @return bool |
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*/ |
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public function isValidClass($class) |
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{ |
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if (!array_key_exists($class, $this->getClasses())) { |
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return false; |
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} |
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return singleton($class)->canCreate(); |
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} |
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} |
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SomarDesignStudios /
silverstripe-contentblocks
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.