silverstripe / silverstripe-tagfield

code/StringTagField.php

Indentation +332 added lines, -332 removed lines

@@ -11,336 +11,336 @@
  */
 class StringTagField extends DropdownField
 {
-    /**
-     * @var array
-     */
-    public static $allowed_actions = array(
-        'suggest',
-    );
-
-    /**
-     * @var bool
-     */
-    protected $shouldLazyLoad = false;
-
-    /**
-     * @var int
-     */
-    protected $lazyLoadItemLimit = 10;
-
-    /**
-     * @var null|DataObject
-     */
-    protected $record;
-
-    /**
-     * @var bool
-     */
-    protected $isMultiple = true;
-
-    /**
-     * @param string $name
-     * @param string $title
-     * @param array|SS_List $source
-     * @param array|SS_List $value
-     */
-    public function __construct($name, $title = '', $source = array(), $value = array())
-    {
-        parent::__construct($name, $title, $source, $value);
-    }
-
-    /**
-     * @return bool
-     */
-    public function getShouldLazyLoad()
-    {
-        return $this->shouldLazyLoad;
-    }
-
-    /**
-     * @param bool $shouldLazyLoad
-     *
-     * @return static
-     */
-    public function setShouldLazyLoad($shouldLazyLoad)
-    {
-        $this->shouldLazyLoad = $shouldLazyLoad;
-
-        return $this;
-    }
-
-    /**
-     * @return int
-     */
-    public function getLazyLoadItemLimit()
-    {
-        return $this->lazyLoadItemLimit;
-    }
-
-    /**
-     * @param int $lazyLoadItemLimit
-     *
-     * @return static
-     */
-    public function setLazyLoadItemLimit($lazyLoadItemLimit)
-    {
-        $this->lazyLoadItemLimit = $lazyLoadItemLimit;
-
-        return $this;
-    }
-
-    /**
-     * @return bool
-     */
-    public function getIsMultiple()
-    {
-        return $this->isMultiple;
-    }
-
-    /**
-     * @param bool $isMultiple
-     *
-     * @return static
-     */
-    public function setIsMultiple($isMultiple)
-    {
-        $this->isMultiple = $isMultiple;
-
-        return $this;
-    }
-
-    /**
-     * @return null|DataObject
-     */
-    public function getRecord()
-    {
-        if ($this->record) {
-            return $this->record;
-        }
-
-        if ($form = $this->getForm()) {
-            return $form->getRecord();
-        }
-
-        return null;
-    }
-
-    /**
-     * @param DataObject $record
-     *
-     * @return $this
-     */
-    public function setRecord(DataObject $record)
-    {
-        $this->record = $record;
-
-        return $this;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function Field($properties = array())
-    {
-        Requirements::css(TAG_FIELD_DIR . '/css/select2.min.css');
-        Requirements::css(TAG_FIELD_DIR . '/css/TagField.css');
-
-        Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
-        Requirements::javascript(THIRDPARTY_DIR . '/jquery-entwine/dist/jquery.entwine-dist.js');
-        Requirements::javascript(TAG_FIELD_DIR . '/js/select2.js');
-        Requirements::javascript(TAG_FIELD_DIR . '/js/TagField.js');
-
-        $this->addExtraClass('ss-tag-field');
-
-        if ($this->getIsMultiple()) {
-            $this->setAttribute('multiple', 'multiple');
-        }
-
-        if ($this->getShouldLazyLoad()) {
-            $this->setAttribute('data-ss-tag-field-suggest-url', $this->getSuggestURL());
-        } else {
-            $properties = array_merge($properties, array(
-                'Options' => $this->getOptions()
-            ));
-        }
-
-        $this->setAttribute('data-can-create', (int) $this->getCanCreate());
-
-        return $this
-            ->customise($properties)
-            ->renderWith(array("templates/TagField"));
-    }
-
-    /**
-     * @return string
-     */
-    protected function getSuggestURL()
-    {
-        return Controller::join_links($this->Link(), 'suggest');
-    }
-
-    /**
-     * @return ArrayList
-     */
-    protected function getOptions()
-    {
-        $options = ArrayList::create();
-
-        $source = $this->getSource();
-
-        if ($source instanceof Iterator) {
-            $source = iterator_to_array($source);
-        }
-
-        $values = $this->Value();
-
-        foreach ($source as $value) {
-            $options->push(
-                ArrayData::create(array(
-                    'Title' => $value,
-                    'Value' => $value,
-                    'Selected' => in_array($value, $values),
-                ))
-            );
-        }
-
-        return $options;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function setValue($value, $source = null)
-    {
-        if (is_string($value)) {
-            $value = explode(',', $value);
-        }
-
-        if ($source instanceof DataObject) {
-            $name = $this->getName();
-            $value = explode(',', $source->$name);
-        }
-
-        if ($source instanceof SS_List) {
-            $value = $source->column('ID');
-        }
-
-        if (is_null($value)) {
-            $value = array();
-        }
-
-        return parent::setValue(array_filter($value));
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getAttributes()
-    {
-        return array_merge(
-            parent::getAttributes(),
-            array('name' => $this->getName() . '[]')
-        );
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function saveInto(DataObjectInterface $record)
-    {
-        parent::saveInto($record);
-
-        $name = $this->getName();
-
-        $record->$name = join(',', $this->Value());
-        $record->write();
-    }
-
-    /**
-     * Returns a JSON string of tags, for lazy loading.
-     *
-     * @param SS_HTTPRequest $request
-     *
-     * @return SS_HTTPResponse
-     */
-    public function suggest(SS_HTTPRequest $request)
-    {
-        $responseBody = Convert::raw2json(
-            array('items' => array())
-        );
-
-        $response = new SS_HTTPResponse();
-        $response->addHeader('Content-Type', 'application/json');
-
-        if ($record = $this->getRecord()) {
-            $tags = array();
-            $term = $request->getVar('term');
-
-            if ($record->hasField($this->getName())) {
-                $tags = $this->getTags($term);
-            }
-
-            $responseBody = Convert::raw2json(
-                array('items' => $tags)
-            );
-        }
-
-        $response->setBody($responseBody);
-
-        return $response;
-    }
-
-    /**
-     * Returns array of arrays representing tags.
-     *
-     * @param string $term
-     *
-     * @return array
-     */
-    protected function getTags($term)
-    {
-        $record = $this->getRecord();
-
-        if (!$record) {
-            return array();
-        }
-
-        $fieldName = $this->getName();
-        $className = $record->getClassName();
-
-        $term = Convert::raw2sql($term);
-
-        $query = $className::get()
-            ->filter($fieldName . ':PartialMatch:nocase', $term)
-            ->limit($this->getLazyLoadItemLimit());
-
-        $items = array();
-
-        foreach ($query->column($fieldName) as $tags) {
-            $tags = explode(',', $tags);
-
-            foreach ($tags as $i => $tag) {
-                if (stripos($tag, $term) !== false && !in_array($tag, $items)) {
-                    $items[] = array(
-                        'id' => $tag,
-                        'text' => $tag
-                    );
-                }
-            }
-        }
-
-        return $items;
-    }
-
-    /**
-     * DropdownField assumes value will be a scalar so we must
-     * override validate. This only applies to Silverstripe 3.2+
-     *
-     * @param Validator $validator
-     * @return bool
-     */
-    public function validate($validator)
-    {
-        return true;
-    }
+	/**
+	 * @var array
+	 */
+	public static $allowed_actions = array(
+		'suggest',
+	);
+
+	/**
+	 * @var bool
+	 */
+	protected $shouldLazyLoad = false;
+
+	/**
+	 * @var int
+	 */
+	protected $lazyLoadItemLimit = 10;
+
+	/**
+	 * @var null|DataObject
+	 */
+	protected $record;
+
+	/**
+	 * @var bool
+	 */
+	protected $isMultiple = true;
+
+	/**
+	 * @param string $name
+	 * @param string $title
+	 * @param array|SS_List $source
+	 * @param array|SS_List $value
+	 */
+	public function __construct($name, $title = '', $source = array(), $value = array())
+	{
+		parent::__construct($name, $title, $source, $value);
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function getShouldLazyLoad()
+	{
+		return $this->shouldLazyLoad;
+	}
+
+	/**
+	 * @param bool $shouldLazyLoad
+	 *
+	 * @return static
+	 */
+	public function setShouldLazyLoad($shouldLazyLoad)
+	{
+		$this->shouldLazyLoad = $shouldLazyLoad;
+
+		return $this;
+	}
+
+	/**
+	 * @return int
+	 */
+	public function getLazyLoadItemLimit()
+	{
+		return $this->lazyLoadItemLimit;
+	}
+
+	/**
+	 * @param int $lazyLoadItemLimit
+	 *
+	 * @return static
+	 */
+	public function setLazyLoadItemLimit($lazyLoadItemLimit)
+	{
+		$this->lazyLoadItemLimit = $lazyLoadItemLimit;
+
+		return $this;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function getIsMultiple()
+	{
+		return $this->isMultiple;
+	}
+
+	/**
+	 * @param bool $isMultiple
+	 *
+	 * @return static
+	 */
+	public function setIsMultiple($isMultiple)
+	{
+		$this->isMultiple = $isMultiple;
+
+		return $this;
+	}
+
+	/**
+	 * @return null|DataObject
+	 */
+	public function getRecord()
+	{
+		if ($this->record) {
+			return $this->record;
+		}
+
+		if ($form = $this->getForm()) {
+			return $form->getRecord();
+		}
+
+		return null;
+	}
+
+	/**
+	 * @param DataObject $record
+	 *
+	 * @return $this
+	 */
+	public function setRecord(DataObject $record)
+	{
+		$this->record = $record;
+
+		return $this;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function Field($properties = array())
+	{
+		Requirements::css(TAG_FIELD_DIR . '/css/select2.min.css');
+		Requirements::css(TAG_FIELD_DIR . '/css/TagField.css');
+
+		Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
+		Requirements::javascript(THIRDPARTY_DIR . '/jquery-entwine/dist/jquery.entwine-dist.js');
+		Requirements::javascript(TAG_FIELD_DIR . '/js/select2.js');
+		Requirements::javascript(TAG_FIELD_DIR . '/js/TagField.js');
+
+		$this->addExtraClass('ss-tag-field');
+
+		if ($this->getIsMultiple()) {
+			$this->setAttribute('multiple', 'multiple');
+		}
+
+		if ($this->getShouldLazyLoad()) {
+			$this->setAttribute('data-ss-tag-field-suggest-url', $this->getSuggestURL());
+		} else {
+			$properties = array_merge($properties, array(
+				'Options' => $this->getOptions()
+			));
+		}
+
+		$this->setAttribute('data-can-create', (int) $this->getCanCreate());
+
+		return $this
+			->customise($properties)
+			->renderWith(array("templates/TagField"));
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getSuggestURL()
+	{
+		return Controller::join_links($this->Link(), 'suggest');
+	}
+
+	/**
+	 * @return ArrayList
+	 */
+	protected function getOptions()
+	{
+		$options = ArrayList::create();
+
+		$source = $this->getSource();
+
+		if ($source instanceof Iterator) {
+			$source = iterator_to_array($source);
+		}
+
+		$values = $this->Value();
+
+		foreach ($source as $value) {
+			$options->push(
+				ArrayData::create(array(
+					'Title' => $value,
+					'Value' => $value,
+					'Selected' => in_array($value, $values),
+				))
+			);
+		}
+
+		return $options;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function setValue($value, $source = null)
+	{
+		if (is_string($value)) {
+			$value = explode(',', $value);
+		}
+
+		if ($source instanceof DataObject) {
+			$name = $this->getName();
+			$value = explode(',', $source->$name);
+		}
+
+		if ($source instanceof SS_List) {
+			$value = $source->column('ID');
+		}
+
+		if (is_null($value)) {
+			$value = array();
+		}
+
+		return parent::setValue(array_filter($value));
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function getAttributes()
+	{
+		return array_merge(
+			parent::getAttributes(),
+			array('name' => $this->getName() . '[]')
+		);
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function saveInto(DataObjectInterface $record)
+	{
+		parent::saveInto($record);
+
+		$name = $this->getName();
+
+		$record->$name = join(',', $this->Value());
+		$record->write();
+	}
+
+	/**
+	 * Returns a JSON string of tags, for lazy loading.
+	 *
+	 * @param SS_HTTPRequest $request
+	 *
+	 * @return SS_HTTPResponse
+	 */
+	public function suggest(SS_HTTPRequest $request)
+	{
+		$responseBody = Convert::raw2json(
+			array('items' => array())
+		);
+
+		$response = new SS_HTTPResponse();
+		$response->addHeader('Content-Type', 'application/json');
+
+		if ($record = $this->getRecord()) {
+			$tags = array();
+			$term = $request->getVar('term');
+
+			if ($record->hasField($this->getName())) {
+				$tags = $this->getTags($term);
+			}
+
+			$responseBody = Convert::raw2json(
+				array('items' => $tags)
+			);
+		}
+
+		$response->setBody($responseBody);
+
+		return $response;
+	}
+
+	/**
+	 * Returns array of arrays representing tags.
+	 *
+	 * @param string $term
+	 *
+	 * @return array
+	 */
+	protected function getTags($term)
+	{
+		$record = $this->getRecord();
+
+		if (!$record) {
+			return array();
+		}
+
+		$fieldName = $this->getName();
+		$className = $record->getClassName();
+
+		$term = Convert::raw2sql($term);
+
+		$query = $className::get()
+			->filter($fieldName . ':PartialMatch:nocase', $term)
+			->limit($this->getLazyLoadItemLimit());
+
+		$items = array();
+
+		foreach ($query->column($fieldName) as $tags) {
+			$tags = explode(',', $tags);
+
+			foreach ($tags as $i => $tag) {
+				if (stripos($tag, $term) !== false && !in_array($tag, $items)) {
+					$items[] = array(
+						'id' => $tag,
+						'text' => $tag
+					);
+				}
+			}
+		}
+
+		return $items;
+	}
+
+	/**
+	 * DropdownField assumes value will be a scalar so we must
+	 * override validate. This only applies to Silverstripe 3.2+
+	 *
+	 * @param Validator $validator
+	 * @return bool
+	 */
+	public function validate($validator)
+	{
+		return true;
+	}
 }

code/TagField.php

Indentation +434 added lines, -434 removed lines

@@ -8,418 +8,418 @@ 
  */
 class TagField extends DropdownField
 {
-    /**
-     * @var array
-     */
-    public static $allowed_actions = array(
-        'suggest',
-    );
-
-    /**
-     * @var bool
-     */
-    protected $shouldLazyLoad = false;
-
-    /**
-     * @var int
-     */
-    protected $lazyLoadItemLimit = 10;
-
-    /**
-     * @var bool
-     */
-    protected $canCreate = true;
-
-    /**
-     * @var string
-     */
-    protected $titleField = 'Title';
-
-    /**
-     * @var bool
-     */
-    protected $isMultiple = true;
-
-    /**
-     * @param string $name
-     * @param string $title
-     * @param null|DataList $source
-     * @param null|DataList $value
-     */
-    public function __construct($name, $title = '', $source = null, $value = null)
-    {
-        parent::__construct($name, $title, $source, $value);
-    }
-
-    /**
-     * @return bool
-     */
-    public function getShouldLazyLoad()
-    {
-        return $this->shouldLazyLoad;
-    }
-
-    /**
-     * @param bool $shouldLazyLoad
-     *
-     * @return static
-     */
-    public function setShouldLazyLoad($shouldLazyLoad)
-    {
-        $this->shouldLazyLoad = $shouldLazyLoad;
-
-        return $this;
-    }
-
-    /**
-     * @return int
-     */
-    public function getLazyLoadItemLimit()
-    {
-        return $this->lazyLoadItemLimit;
-    }
-
-    /**
-     * @param int $lazyLoadItemLimit
-     *
-     * @return static
-     */
-    public function setLazyLoadItemLimit($lazyLoadItemLimit)
-    {
-        $this->lazyLoadItemLimit = $lazyLoadItemLimit;
-
-        return $this;
-    }
-
-    /**
-     * @return bool
-     */
-    public function getIsMultiple()
-    {
-        return $this->isMultiple;
-    }
-
-    /**
-     * @param bool $isMultiple
-     *
-     * @return static
-     */
-    public function setIsMultiple($isMultiple)
-    {
-        $this->isMultiple = $isMultiple;
-
-        return $this;
-    }
-
-    /**
-     * @return bool
-     */
-    public function getCanCreate()
-    {
-        return $this->canCreate;
-    }
-
-    /**
-     * @param bool $canCreate
-     *
-     * @return static
-     */
-    public function setCanCreate($canCreate)
-    {
-        $this->canCreate = $canCreate;
-
-        return $this;
-    }
-
-    /**
-     * @return string
-     */
-    public function getTitleField()
-    {
-        return $this->titleField;
-    }
-
-    /**
-     * @param string $titleField
-     *
-     * @return $this
-     */
-    public function setTitleField($titleField)
-    {
-        $this->titleField = $titleField;
-
-        return $this;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function Field($properties = array())
-    {
-        Requirements::css(TAG_FIELD_DIR . '/css/select2.min.css');
-        Requirements::css(TAG_FIELD_DIR . '/css/TagField.css');
-
-        Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
-        Requirements::javascript(THIRDPARTY_DIR . '/jquery-entwine/dist/jquery.entwine-dist.js');
-        Requirements::javascript(TAG_FIELD_DIR . '/js/select2.js');
-        Requirements::javascript(TAG_FIELD_DIR . '/js/TagField.js');
-
-        $this->addExtraClass('ss-tag-field');
-
-        if ($this->getIsMultiple()) {
-            $this->setAttribute('multiple', 'multiple');
-        }
-
-        if ($this->shouldLazyLoad) {
-            $this->setAttribute('data-ss-tag-field-suggest-url', $this->getSuggestURL());
-        } else {
-            $properties = array_merge($properties, array(
-                'Options' => $this->getOptions()
-            ));
-        }
-
-        $this->setAttribute('data-can-create', (int) $this->getCanCreate());
-
-        return $this
-            ->customise($properties)
-            ->renderWith(array("templates/TagField"));
-    }
-
-    /**
-     * @return string
-     */
-    protected function getSuggestURL()
-    {
-        return Controller::join_links($this->Link(), 'suggest');
-    }
-
-    /**
-     * @return ArrayList
-     */
-    protected function getOptions()
-    {
-        $options = ArrayList::create();
-
-        $source = $this->getSource();
-
-        if (!$source) {
-            $source = new ArrayList();
-        }
-
-        $dataClass = $source->dataClass();
-
-        $values = $this->Value();
-
-        // Mark selected tags while still returning a full list of possible options
-        $ids = array(); // empty fallback array for comparing
-        $values = $this->Value();
-        if($values){
-            // @TODO conversion from array to DataList to array...(?)
-            if(is_array($values)) {
-                $values = DataList::create($dataClass)->filter('ID', $values);
-            }
-            $ids = $values->column('ID');
-        }
-
-        $titleField = $this->getTitleField();
-
-        foreach ($source as $object) {
-            $options->push(
-                ArrayData::create(array(
-                    'Title' => $object->$titleField,
-                    'Value' => $object->ID,
-                    'Selected' => in_array($object->ID, $ids),
-                ))
-            );
-        }
-
-        return $options;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function setValue($value, $source = null)
-    {
-        if ($source instanceof DataObject) {
-            $name = $this->getName();
-
-            if ($source->hasMethod($name)) {
-                $value = $source->$name()->getIDList();
-            }
-        } elseif ($value instanceof SS_List) {
-            $value = $value->column('ID');
-        }
-
-        if (!is_array($value)) {
-            return parent::setValue($value);
-        }
-
-        return parent::setValue(array_filter($value));
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getAttributes()
-    {
-        return array_merge(
-            parent::getAttributes(),
-            array('name' => $this->getName() . '[]')
-        );
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function saveInto(DataObjectInterface $record)
-    {
-        parent::saveInto($record);
-
-        $name = $this->getName();
-        $titleField = $this->getTitleField();
-
-        $source = $this->getSource();
-
-        $values = $this->Value();
-
-        if (!$values) {
-            $values = array();
-        }
-
-        if (empty($record) || empty($source) || empty($titleField)) {
-            return;
-        }
-
-        if (!$record->hasMethod($name)) {
-            throw new Exception(
-                sprintf("%s does not have a %s method", get_class($record), $name)
-            );
-        }
-
-        $relation = $record->$name();
-
-        foreach ($values as $i => $value) {
-            if (!is_numeric($value)) {
-                if (!$this->getCanCreate()) {
-                    unset($values[$i]);
-                    continue;
-                }
-
-                // Get or create record
-                $record = $this->getOrCreateTag($value);
-                $values[$i] = $record->ID;
-            }
-        }
-
-        if ($values instanceof SS_List) {
-            $values = iterator_to_array($values);
-        }
-
-        $relation->setByIDList(array_filter($values));
-    }
-
-    /**
-     * Get or create tag with the given value
-     *
-     * @param string $term
-     * @return DataObject
-     */
-    protected function getOrCreateTag($term)
-    {
-        // Check if existing record can be found
-        $source = $this->getSource();
-        $titleField = $this->getTitleField();
-        $record = $source
-            ->filter($titleField, $term)
-            ->first();
-        if ($record) {
-            return $record;
-        }
-
-        // Create new instance if not yet saved
-        $dataClass = $source->dataClass();
-        $record = Injector::inst()->create($dataClass);
-        $record->{$titleField} = $term;
-        $record->write();
-        return $record;
-    }
-
-    /**
-     * Returns a JSON string of tags, for lazy loading.
-     *
-     * @param SS_HTTPRequest $request
-     *
-     * @return SS_HTTPResponse
-     */
-    public function suggest(SS_HTTPRequest $request)
-    {
-        $tags = $this->getTags($request->getVar('term'));
-
-        $response = new SS_HTTPResponse();
-        $response->addHeader('Content-Type', 'application/json');
-        $response->setBody(json_encode(array('items' => $tags)));
-
-        return $response;
-    }
-
-    /**
-     * Returns array of arrays representing tags.
-     *
-     * @param string $term
-     *
-     * @return array
-     */
-    protected function getTags($term)
-    {
-        /**
-         * @var DataList $source
-         */
-        $source = $this->getSource();
-
-        $titleField = $this->getTitleField();
-
-        $query = $source
-            ->filter($titleField . ':PartialMatch:nocase', $term)
-            ->sort($titleField)
-            ->limit($this->getLazyLoadItemLimit());
-
-        // Map into a distinct list
-        $items = array();
-        $titleField = $this->getTitleField();
-        foreach ($query->map('ID', $titleField) as $id => $title) {
-            $items[$title] = array(
-                'id' => $id,
-                'text' => $title
-            );
-        }
-
-        return array_values($items);
-    }
-
-    /**
-     * DropdownField assumes value will be a scalar so we must
-     * override validate. This only applies to Silverstripe 3.2+
-     *
-     * @param Validator $validator
-     * @return bool
-     */
-    public function validate($validator)
-    {
-        return true;
-    }
-
-    /**
-     * Converts the field to a readonly variant.
-     *
-     * @return TagField_Readonly
-     */
-    public function performReadonlyTransformation()
-    {
-        $copy = $this->castedCopy('TagField_Readonly');
-        $copy->setSource($this->getSource());
-        return $copy;
-    }
+	/**
+	 * @var array
+	 */
+	public static $allowed_actions = array(
+		'suggest',
+	);
+
+	/**
+	 * @var bool
+	 */
+	protected $shouldLazyLoad = false;
+
+	/**
+	 * @var int
+	 */
+	protected $lazyLoadItemLimit = 10;
+
+	/**
+	 * @var bool
+	 */
+	protected $canCreate = true;
+
+	/**
+	 * @var string
+	 */
+	protected $titleField = 'Title';
+
+	/**
+	 * @var bool
+	 */
+	protected $isMultiple = true;
+
+	/**
+	 * @param string $name
+	 * @param string $title
+	 * @param null|DataList $source
+	 * @param null|DataList $value
+	 */
+	public function __construct($name, $title = '', $source = null, $value = null)
+	{
+		parent::__construct($name, $title, $source, $value);
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function getShouldLazyLoad()
+	{
+		return $this->shouldLazyLoad;
+	}
+
+	/**
+	 * @param bool $shouldLazyLoad
+	 *
+	 * @return static
+	 */
+	public function setShouldLazyLoad($shouldLazyLoad)
+	{
+		$this->shouldLazyLoad = $shouldLazyLoad;
+
+		return $this;
+	}
+
+	/**
+	 * @return int
+	 */
+	public function getLazyLoadItemLimit()
+	{
+		return $this->lazyLoadItemLimit;
+	}
+
+	/**
+	 * @param int $lazyLoadItemLimit
+	 *
+	 * @return static
+	 */
+	public function setLazyLoadItemLimit($lazyLoadItemLimit)
+	{
+		$this->lazyLoadItemLimit = $lazyLoadItemLimit;
+
+		return $this;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function getIsMultiple()
+	{
+		return $this->isMultiple;
+	}
+
+	/**
+	 * @param bool $isMultiple
+	 *
+	 * @return static
+	 */
+	public function setIsMultiple($isMultiple)
+	{
+		$this->isMultiple = $isMultiple;
+
+		return $this;
+	}
+
+	/**
+	 * @return bool
+	 */
+	public function getCanCreate()
+	{
+		return $this->canCreate;
+	}
+
+	/**
+	 * @param bool $canCreate
+	 *
+	 * @return static
+	 */
+	public function setCanCreate($canCreate)
+	{
+		$this->canCreate = $canCreate;
+
+		return $this;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getTitleField()
+	{
+		return $this->titleField;
+	}
+
+	/**
+	 * @param string $titleField
+	 *
+	 * @return $this
+	 */
+	public function setTitleField($titleField)
+	{
+		$this->titleField = $titleField;
+
+		return $this;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function Field($properties = array())
+	{
+		Requirements::css(TAG_FIELD_DIR . '/css/select2.min.css');
+		Requirements::css(TAG_FIELD_DIR . '/css/TagField.css');
+
+		Requirements::javascript(THIRDPARTY_DIR . '/jquery/jquery.js');
+		Requirements::javascript(THIRDPARTY_DIR . '/jquery-entwine/dist/jquery.entwine-dist.js');
+		Requirements::javascript(TAG_FIELD_DIR . '/js/select2.js');
+		Requirements::javascript(TAG_FIELD_DIR . '/js/TagField.js');
+
+		$this->addExtraClass('ss-tag-field');
+
+		if ($this->getIsMultiple()) {
+			$this->setAttribute('multiple', 'multiple');
+		}
+
+		if ($this->shouldLazyLoad) {
+			$this->setAttribute('data-ss-tag-field-suggest-url', $this->getSuggestURL());
+		} else {
+			$properties = array_merge($properties, array(
+				'Options' => $this->getOptions()
+			));
+		}
+
+		$this->setAttribute('data-can-create', (int) $this->getCanCreate());
+
+		return $this
+			->customise($properties)
+			->renderWith(array("templates/TagField"));
+	}
+
+	/**
+	 * @return string
+	 */
+	protected function getSuggestURL()
+	{
+		return Controller::join_links($this->Link(), 'suggest');
+	}
+
+	/**
+	 * @return ArrayList
+	 */
+	protected function getOptions()
+	{
+		$options = ArrayList::create();
+
+		$source = $this->getSource();
+
+		if (!$source) {
+			$source = new ArrayList();
+		}
+
+		$dataClass = $source->dataClass();
+
+		$values = $this->Value();
+
+		// Mark selected tags while still returning a full list of possible options
+		$ids = array(); // empty fallback array for comparing
+		$values = $this->Value();
+		if($values){
+			// @TODO conversion from array to DataList to array...(?)
+			if(is_array($values)) {
+				$values = DataList::create($dataClass)->filter('ID', $values);
+			}
+			$ids = $values->column('ID');
+		}
+
+		$titleField = $this->getTitleField();
+
+		foreach ($source as $object) {
+			$options->push(
+				ArrayData::create(array(
+					'Title' => $object->$titleField,
+					'Value' => $object->ID,
+					'Selected' => in_array($object->ID, $ids),
+				))
+			);
+		}
+
+		return $options;
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function setValue($value, $source = null)
+	{
+		if ($source instanceof DataObject) {
+			$name = $this->getName();
+
+			if ($source->hasMethod($name)) {
+				$value = $source->$name()->getIDList();
+			}
+		} elseif ($value instanceof SS_List) {
+			$value = $value->column('ID');
+		}
+
+		if (!is_array($value)) {
+			return parent::setValue($value);
+		}
+
+		return parent::setValue(array_filter($value));
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function getAttributes()
+	{
+		return array_merge(
+			parent::getAttributes(),
+			array('name' => $this->getName() . '[]')
+		);
+	}
+
+	/**
+	 * {@inheritdoc}
+	 */
+	public function saveInto(DataObjectInterface $record)
+	{
+		parent::saveInto($record);
+
+		$name = $this->getName();
+		$titleField = $this->getTitleField();
+
+		$source = $this->getSource();
+
+		$values = $this->Value();
+
+		if (!$values) {
+			$values = array();
+		}
+
+		if (empty($record) || empty($source) || empty($titleField)) {
+			return;
+		}
+
+		if (!$record->hasMethod($name)) {
+			throw new Exception(
+				sprintf("%s does not have a %s method", get_class($record), $name)
+			);
+		}
+
+		$relation = $record->$name();
+
+		foreach ($values as $i => $value) {
+			if (!is_numeric($value)) {
+				if (!$this->getCanCreate()) {
+					unset($values[$i]);
+					continue;
+				}
+
+				// Get or create record
+				$record = $this->getOrCreateTag($value);
+				$values[$i] = $record->ID;
+			}
+		}
+
+		if ($values instanceof SS_List) {
+			$values = iterator_to_array($values);
+		}
+
+		$relation->setByIDList(array_filter($values));
+	}
+
+	/**
+	 * Get or create tag with the given value
+	 *
+	 * @param string $term
+	 * @return DataObject
+	 */
+	protected function getOrCreateTag($term)
+	{
+		// Check if existing record can be found
+		$source = $this->getSource();
+		$titleField = $this->getTitleField();
+		$record = $source
+			->filter($titleField, $term)
+			->first();
+		if ($record) {
+			return $record;
+		}
+
+		// Create new instance if not yet saved
+		$dataClass = $source->dataClass();
+		$record = Injector::inst()->create($dataClass);
+		$record->{$titleField} = $term;
+		$record->write();
+		return $record;
+	}
+
+	/**
+	 * Returns a JSON string of tags, for lazy loading.
+	 *
+	 * @param SS_HTTPRequest $request
+	 *
+	 * @return SS_HTTPResponse
+	 */
+	public function suggest(SS_HTTPRequest $request)
+	{
+		$tags = $this->getTags($request->getVar('term'));
+
+		$response = new SS_HTTPResponse();
+		$response->addHeader('Content-Type', 'application/json');
+		$response->setBody(json_encode(array('items' => $tags)));
+
+		return $response;
+	}
+
+	/**
+	 * Returns array of arrays representing tags.
+	 *
+	 * @param string $term
+	 *
+	 * @return array
+	 */
+	protected function getTags($term)
+	{
+		/**
+		 * @var DataList $source
+		 */
+		$source = $this->getSource();
+
+		$titleField = $this->getTitleField();
+
+		$query = $source
+			->filter($titleField . ':PartialMatch:nocase', $term)
+			->sort($titleField)
+			->limit($this->getLazyLoadItemLimit());
+
+		// Map into a distinct list
+		$items = array();
+		$titleField = $this->getTitleField();
+		foreach ($query->map('ID', $titleField) as $id => $title) {
+			$items[$title] = array(
+				'id' => $id,
+				'text' => $title
+			);
+		}
+
+		return array_values($items);
+	}
+
+	/**
+	 * DropdownField assumes value will be a scalar so we must
+	 * override validate. This only applies to Silverstripe 3.2+
+	 *
+	 * @param Validator $validator
+	 * @return bool
+	 */
+	public function validate($validator)
+	{
+		return true;
+	}
+
+	/**
+	 * Converts the field to a readonly variant.
+	 *
+	 * @return TagField_Readonly
+	 */
+	public function performReadonlyTransformation()
+	{
+		$copy = $this->castedCopy('TagField_Readonly');
+		$copy->setSource($this->getSource());
+		return $copy;
+	}
 }
 
 /**
@@ -430,26 +430,26 @@ 
  */
 class TagField_Readonly extends TagField
 {
-    protected $readonly = true;
-
-    /**
-     * Render the readonly field as HTML.
-     *
-     * @param array $properties
-     * @return HTMLText
-     */
-    public function Field($properties = array())
-    {
-        $options = array();
-
-        foreach ($this->getOptions()->filter('Selected', true) as $option) {
-            $options[] = $option->Title;
-        }
-
-        $field = ReadonlyField::create($this->name.'_Readonly', $this->title);
-
-        $field->setForm($this->form);
-        $field->setValue(implode(', ', $options));
-        return $field->Field();
-    }
+	protected $readonly = true;
+
+	/**
+	 * Render the readonly field as HTML.
+	 *
+	 * @param array $properties
+	 * @return HTMLText
+	 */
+	public function Field($properties = array())
+	{
+		$options = array();
+
+		foreach ($this->getOptions()->filter('Selected', true) as $option) {
+			$options[] = $option->Title;
+		}
+
+		$field = ReadonlyField::create($this->name.'_Readonly', $this->title);
+
+		$field->setForm($this->form);
+		$field->setValue(implode(', ', $options));
+		return $field->Field();
+	}
 }