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<?php |
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use SilverStripe\ORM\FieldType\DBHTMLText; |
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/** |
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* The action buttons are <input type="submit"> as well as <button> tags. |
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* |
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* Upon clicking the button below will redirect the user to doAction under the current controller. |
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* |
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* <code> |
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* new FormAction ( |
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* // doAction has to be a defined controller member |
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* $action = "doAction", |
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* $title = "Submit button" |
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* ) |
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* </code> |
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* |
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* @package forms |
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* @subpackage actions |
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*/ |
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class FormAction extends FormField { |
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/** |
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* @config |
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* @var array |
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*/ |
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private static $casting = [ |
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'ButtonContent' => 'HTMLFragment', |
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]; |
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/** |
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* Action name, normally prefixed with 'action_' |
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* |
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* @var string |
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*/ |
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protected $action; |
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/** |
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* Identifier of icon, if supported on the frontend |
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* |
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* @var string |
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*/ |
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protected $icon = null; |
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protected $schemaComponent = 'FormAction'; |
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/** |
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* Enables the use of <button> instead of <input> |
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* in {@link Field()} - for more customizeable styling. |
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* |
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* @var boolean |
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*/ |
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public $useButtonTag = false; |
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/** |
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* Literal button content, used when useButtonTag is true. |
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* |
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* @var string |
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*/ |
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protected $buttonContent = null; |
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/** |
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* Should validation be skipped when performing this action? |
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* |
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* @var bool |
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*/ |
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protected $validationExempt = false; |
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/** |
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* Create a new action button. |
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* |
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* @param string $action The method to call when the button is clicked |
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* @param string $title The label on the button. This should be plain text, not escaped as HTML. |
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* @param Form form The parent form, auto-set when the field is placed inside a form |
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*/ |
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public function __construct($action, $title = "", $form = null) { |
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$this->action = "action_$action"; |
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$this->setForm($form); |
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parent::__construct($this->action, $title); |
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} |
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/** |
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* Add extra options to data |
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*/ |
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public function getSchemaDataDefaults() { |
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$defaults = parent::getSchemaDataDefaults(); |
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$defaults['attributes']['type'] = $this->getUseButtonTag() ? 'button' : 'submit'; |
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$defaults['data']['icon'] = $this->getIcon(); |
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return $defaults; |
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} |
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/** |
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* Get button icon, if supported |
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* |
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* @return string |
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*/ |
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public function getIcon() { |
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return $this->icon; |
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} |
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/** |
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* Sets button icon |
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* |
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* @param string $icon Icon identifier (not path) |
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* @return $this |
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*/ |
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public function setIcon($icon) { |
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$this->icon = $icon; |
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return $this; |
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} |
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/** |
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* Get the action name |
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* |
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* @return string |
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*/ |
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public function actionName() { |
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return substr($this->name, 7); |
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} |
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/** |
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* Set the full action name, including action_ |
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* This provides an opportunity to replace it with something else |
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* |
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* @param string $fullAction |
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* @return $this |
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*/ |
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public function setFullAction($fullAction) { |
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$this->action = $fullAction; |
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return $this; |
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} |
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/** |
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* @param array $properties |
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* @return string |
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*/ |
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public function Field($properties = array()) { |
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$properties = array_merge( |
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$properties, |
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array( |
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'Name' => $this->action, |
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'Title' => ($this->description && !$this->useButtonTag) ? $this->description : $this->Title(), |
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'UseButtonTag' => $this->useButtonTag |
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) |
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); |
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return parent::Field($properties); |
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} |
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/** |
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* @param array $properties |
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* @return DBHTMLText |
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*/ |
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public function FieldHolder($properties = array()) { |
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return $this->Field($properties); |
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} |
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public function Type() { |
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return 'action'; |
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} |
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public function getAttributes() { |
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$type = (isset($this->attributes['src'])) ? 'image' : 'submit'; |
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return array_merge( |
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parent::getAttributes(), |
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array( |
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'disabled' => ($this->isReadonly() || $this->isDisabled()), |
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'value' => $this->Title(), |
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'type' => $type, |
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'title' => ($this->useButtonTag) ? $this->description : null, |
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) |
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); |
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} |
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/** |
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* Add content inside a button field. This should be pre-escaped raw HTML and should be used sparingly. |
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* |
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* @param string $content |
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* @return $this |
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*/ |
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public function setButtonContent($content) { |
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$this->buttonContent = (string) $content; |
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return $this; |
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} |
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/** |
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* Gets the content inside the button field. This is raw HTML, and should be used sparingly. |
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* |
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* @return string |
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*/ |
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public function getButtonContent() { |
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return $this->buttonContent; |
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} |
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/** |
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* Enable or disable the rendering of this action as a <button /> |
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* |
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* @param boolean |
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* @return $this |
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*/ |
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public function setUseButtonTag($bool) { |
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$this->useButtonTag = $bool; |
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return $this; |
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} |
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/** |
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* Determine if this action is rendered as a <button /> |
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* |
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* @return boolean |
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*/ |
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public function getUseButtonTag() { |
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return $this->useButtonTag; |
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} |
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/** |
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* Set whether this action can be performed without validating the data |
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* |
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* @param bool $exempt |
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* @return $this |
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*/ |
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public function setValidationExempt($exempt = true) { |
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$this->validationExempt = $exempt; |
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return $this; |
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} |
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/** |
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* Get whether this action can be performed without vaidating the data |
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* |
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* @return bool |
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*/ |
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public function getValidationExempt() { |
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return $this->validationExempt; |
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} |
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/** |
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* Does not transform to readonly by purpose. |
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* Globally disabled buttons would break the CMS. |
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*/ |
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public function performReadonlyTransformation() { |
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$clone = clone $this; |
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$clone->setReadonly(true); |
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return $clone; |
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} |
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} |
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It seems like you allow that null is being passed for a parameter, however the function which is called does not seem to accept null.
We recommend to add an additional type check (or disallow null for the parameter):