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<?php |
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namespace SilverStripe\TagField; |
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use SilverStripe\Control\Controller; |
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use SilverStripe\Control\HTTPRequest; |
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use SilverStripe\Control\HTTPResponse; |
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use SilverStripe\Core\Injector\Injector; |
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use SilverStripe\Forms\MultiSelectField; |
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use SilverStripe\ORM\ArrayList; |
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use SilverStripe\ORM\DataList; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\ORM\DataObjectInterface; |
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use SilverStripe\ORM\SS_List; |
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use SilverStripe\View\ArrayData; |
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use SilverStripe\View\Requirements; |
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/** |
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* Provides a tagging interface, storing links between tag DataObjects and a parent DataObject. |
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* |
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* @package forms |
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* @subpackage fields |
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*/ |
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class TagField extends MultiSelectField |
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{ |
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/** |
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* @var array |
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*/ |
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private static $allowed_actions = array( |
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'suggest' |
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); |
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/** |
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* @var bool |
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*/ |
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protected $shouldLazyLoad = false; |
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/** |
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* @var int |
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*/ |
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protected $lazyLoadItemLimit = 10; |
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/** |
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* @var bool |
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*/ |
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protected $canCreate = true; |
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/** |
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* @var string |
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*/ |
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protected $titleField = 'Title'; |
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/** |
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* @var DataList |
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*/ |
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protected $sourceList; |
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/** |
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* @var bool |
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*/ |
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protected $isMultiple = true; |
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/** @skipUpgrade */ |
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protected $schemaComponent = 'TagField'; |
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/** |
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* @param string $name |
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* @param string $title |
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* @param null|DataList $source |
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* @param null|DataList $value |
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* @param string $titleField |
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*/ |
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public function __construct($name, $title = '', $source = [], $value = null, $titleField = 'Title') |
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{ |
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$this->setSourceList($source); |
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$this->setTitleField($titleField); |
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parent::__construct($name, $title, $source, $value); |
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} |
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/** |
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* @return bool |
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*/ |
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public function getShouldLazyLoad() |
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{ |
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return $this->shouldLazyLoad; |
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} |
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/** |
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* @param bool $shouldLazyLoad |
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* |
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* @return static |
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*/ |
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public function setShouldLazyLoad($shouldLazyLoad) |
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{ |
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$this->shouldLazyLoad = $shouldLazyLoad; |
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return $this; |
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} |
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/** |
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* @return int |
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*/ |
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public function getLazyLoadItemLimit() |
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{ |
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return $this->lazyLoadItemLimit; |
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} |
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/** |
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* @param int $lazyLoadItemLimit |
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* |
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* @return static |
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*/ |
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public function setLazyLoadItemLimit($lazyLoadItemLimit) |
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{ |
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$this->lazyLoadItemLimit = $lazyLoadItemLimit; |
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return $this; |
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} |
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/** |
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* @return bool |
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*/ |
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public function getIsMultiple() |
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{ |
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return $this->isMultiple; |
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} |
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/** |
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* @param bool $isMultiple |
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* |
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* @return static |
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*/ |
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public function setIsMultiple($isMultiple) |
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{ |
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$this->isMultiple = $isMultiple; |
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return $this; |
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} |
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/** |
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* @return bool |
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*/ |
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public function getCanCreate() |
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{ |
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return $this->canCreate; |
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} |
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/** |
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* @param bool $canCreate |
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* |
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* @return static |
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*/ |
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public function setCanCreate($canCreate) |
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{ |
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$this->canCreate = $canCreate; |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function getTitleField() |
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{ |
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return $this->titleField; |
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} |
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/** |
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* @param string $titleField |
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* |
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* @return $this |
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*/ |
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public function setTitleField($titleField) |
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{ |
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$this->titleField = $titleField; |
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return $this; |
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} |
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/** |
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* Get the DataList source. The 4.x upgrade for SelectField::setSource starts to convert this to an array |
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* @return DataList |
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*/ |
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public function getSourceList() |
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{ |
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return $this->sourceList; |
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} |
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/** |
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* Set the model class name for tags |
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* @param DataList $className |
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* @return self |
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*/ |
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public function setSourceList($sourceList) |
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{ |
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$this->sourceList = $sourceList; |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function Field($properties = array()) |
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{ |
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Requirements::css('silverstripe/tagfield:css/select2.min.css'); |
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Requirements::css('silverstripe/tagfield:css/TagField.css'); |
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Requirements::javascript('silverstripe/tagfield:js/select2.js'); |
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Requirements::javascript('silverstripe/tagfield:js/TagField.js'); |
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$this->addExtraClass('ss-tag-field'); |
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if ($this->getIsMultiple()) { |
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$this->setAttribute('multiple', 'multiple'); |
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} |
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if ($this->shouldLazyLoad) { |
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$this->setAttribute('data-ss-tag-field-suggest-url', $this->getSuggestURL()); |
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} else { |
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$properties = array_merge($properties, array( |
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'Options' => $this->getOptions() |
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)); |
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} |
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$this->setAttribute('data-can-create', (int) $this->getCanCreate()); |
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return $this |
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->customise($properties) |
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->renderWith(self::class); |
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} |
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/** |
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* @return string |
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*/ |
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protected function getSuggestURL() |
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{ |
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return Controller::join_links($this->Link(), 'suggest'); |
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} |
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/** |
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* @return ArrayList |
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*/ |
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protected function getOptions() |
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{ |
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$options = ArrayList::create(); |
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$source = $this->getSourceList(); |
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if (!$source) { |
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$source = ArrayList::create(); |
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} |
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$dataClass = $source->dataClass(); |
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$values = $this->Value(); |
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if (!$values) { |
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return $options; |
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} |
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if (is_array($values)) { |
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$values = DataList::create($dataClass)->filter($this->getTitleField(), $values); |
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} |
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$ids = $values->column($this->getTitleField()); |
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$titleField = $this->getTitleField(); |
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foreach ($source as $object) { |
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$options->push( |
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ArrayData::create(array( |
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'Title' => $object->$titleField, |
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'Value' => $object->ID, |
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'Selected' => in_array($object->$titleField, $ids), |
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)) |
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); |
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} |
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return $options; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function setValue($value, $source = null) |
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{ |
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if ($source instanceof DataObject) { |
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$name = $this->getName(); |
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if ($source->hasMethod($name)) { |
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$values = []; |
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$titleField = $this->getTitleField(); |
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foreach ($source->$name() as $tag) { |
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$values[] = [ |
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'Title' => $tag->$titleField, |
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'Value' => $tag->ID, |
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'Selected' => true |
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]; |
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} |
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return parent::setValue($values); |
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} |
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} |
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if (!is_array($value)) { |
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return parent::setValue($value); |
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} |
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return parent::setValue($value); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getAttributes() |
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{ |
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return array_merge( |
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parent::getAttributes(), |
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[ |
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'name' => $this->getName() . '[]', |
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'style'=> 'width: 100%' |
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] |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function saveInto(DataObjectInterface $record) |
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{ |
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parent::saveInto($record); |
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$name = $this->getName(); |
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$titleField = $this->getTitleField(); |
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$source = $this->getSource(); |
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$values = $this->Value(); |
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$relation = $record->$name(); |
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$ids = array(); |
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if (!$values) { |
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$values = array(); |
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} |
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if (empty($record) || empty($titleField)) { |
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return; |
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} |
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if (!$record->hasMethod($name)) { |
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throw new Exception( |
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sprintf("%s does not have a %s method", get_class($record), $name) |
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); |
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} |
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foreach ($values as $key => $value) { |
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// Get or create record |
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$record = $this->getOrCreateTag($value); |
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if ($record) { |
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$ids[] = $record->ID; |
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$values[$key] = $record->Title; |
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} |
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} |
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$relation->setByIDList(array_filter($ids)); |
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} |
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/** |
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* Get or create tag with the given value |
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* |
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* @param string $term |
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* @return DataObject |
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*/ |
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protected function getOrCreateTag($term) |
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{ |
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// Check if existing record can be found |
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/** @var DataList $source */ |
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$source = $this->getSourceList(); |
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$titleField = $this->getTitleField(); |
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$record = $source |
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->filter($titleField, $term) |
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->first(); |
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if ($record) { |
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return $record; |
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} |
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// Create new instance if not yet saved |
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if ($this->getCanCreate()) { |
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$dataClass = $source->dataClass(); |
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$record = Injector::inst()->create($dataClass); |
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$record->{$titleField} = $term; |
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$record->write(); |
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return $record; |
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} else { |
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return false; |
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} |
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} |
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/** |
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* Returns a JSON string of tags, for lazy loading. |
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* |
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* @param HTTPRequest $request |
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* @return HTTPResponse |
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*/ |
403
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public function suggest(HTTPRequest $request) |
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{ |
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$tags = $this->getTags($request->getVar('term')); |
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$response = new HTTPResponse(); |
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$response->addHeader('Content-Type', 'application/json'); |
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$response->setBody(json_encode(array('items' => $tags))); |
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return $response; |
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|
} |
413
|
|
|
|
414
|
|
|
/** |
415
|
|
|
* Returns array of arrays representing tags. |
416
|
|
|
* |
417
|
|
|
* @param string $term |
418
|
|
|
* @return array |
419
|
|
|
*/ |
420
|
|
|
protected function getTags($term) |
421
|
|
|
{ |
422
|
|
|
/** |
423
|
|
|
* @var array $source |
424
|
|
|
*/ |
425
|
|
|
$source = $this->getSourceList(); |
426
|
|
|
|
427
|
|
|
$titleField = $this->getTitleField(); |
428
|
|
|
|
429
|
|
|
$query = $source |
430
|
|
|
->filter($titleField . ':PartialMatch:nocase', $term) |
431
|
|
|
->sort($titleField) |
432
|
|
|
->limit($this->getLazyLoadItemLimit()); |
433
|
|
|
|
434
|
|
|
// Map into a distinct list |
435
|
|
|
$items = array(); |
436
|
|
|
$titleField = $this->getTitleField(); |
437
|
|
|
foreach ($query->map('ID', $titleField) as $id => $title) { |
438
|
|
|
$items[$title] = array( |
439
|
|
|
'Title' => $title, |
440
|
|
|
'Value' => $id |
441
|
|
|
); |
442
|
|
|
} |
443
|
|
|
|
444
|
|
|
return array_values($items); |
445
|
|
|
} |
446
|
|
|
|
447
|
|
|
/** |
448
|
|
|
* DropdownField assumes value will be a scalar so we must |
449
|
|
|
* override validate. This only applies to Silverstripe 3.2+ |
450
|
|
|
* |
451
|
|
|
* @param Validator $validator |
|
|
|
|
452
|
|
|
* @return bool |
453
|
|
|
*/ |
454
|
|
|
public function validate($validator) |
455
|
|
|
{ |
456
|
|
|
return true; |
457
|
|
|
} |
458
|
|
|
|
459
|
|
|
/** |
460
|
|
|
* Converts the field to a readonly variant. |
461
|
|
|
* |
462
|
|
|
* @return TagField_Readonly |
|
|
|
|
463
|
|
|
*/ |
464
|
|
|
public function performReadonlyTransformation() |
465
|
|
|
{ |
466
|
|
|
$copy = $this->castedCopy(ReadonlyTagField::class); |
467
|
|
|
$copy->setSourceList($this->getSourceList()); |
468
|
|
|
return $copy; |
|
|
|
|
469
|
|
|
} |
470
|
|
|
|
471
|
|
|
public function getSchemaStateDefaults() |
472
|
|
|
{ |
473
|
|
|
$data = parent::getSchemaStateDefaults(); |
474
|
|
|
|
475
|
|
|
// Add options to 'data' |
476
|
|
|
$data['lazyLoad'] = $this->getShouldLazyLoad(); |
477
|
|
|
$data['multi'] = $this->getIsMultiple(); |
478
|
|
|
$data['optionUrl'] = $this->getSuggestURL(); |
479
|
|
|
$data['creatable'] = $this->getCanCreate(); |
480
|
|
|
$data['value'] = $this->Value(); |
481
|
|
|
|
482
|
|
|
|
483
|
|
|
return $data; |
484
|
|
|
} |
485
|
|
|
} |
486
|
|
|
|
487
|
|
|
|