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<?php |
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namespace SilverStripe\VersionedAdmin\Forms; |
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use SilverStripe\Forms\FormField; |
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use SilverStripe\ORM\CMSPreviewable; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\View\Requirements; |
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class HistoryViewerField extends FormField |
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{ |
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/** |
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* Default to using the SiteTree component |
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* |
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* @var string |
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*/ |
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protected $schemaComponent = 'PageHistoryViewer'; |
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/** |
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* Unique context key used to differentiate the different use cases for HistoryViewer |
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* |
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* @var string |
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*/ |
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protected $contextKey; |
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public function __construct($name, $title = null, $value = null) |
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{ |
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Requirements::javascript('silverstripe/versioned-admin:client/dist/js/bundle.js'); |
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Requirements::css('silverstripe/versioned-admin:client/dist/styles/bundle.css'); |
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parent::__construct($name, $title, $value); |
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} |
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/** |
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* Get the source record to view history for |
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* |
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* @return DataObject|null |
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*/ |
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public function getSourceRecord() |
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{ |
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return $this->getForm() ? $this->getForm()->getRecord() : null; |
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} |
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/** |
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* Get whether the record is previewable |
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* |
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* @return boolean |
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*/ |
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public function getPreviewEnabled() |
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{ |
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$record = $this->getSourceRecord(); |
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return $record && $record instanceof CMSPreviewable; |
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} |
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public function getContextKey() |
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{ |
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if ($this->contextKey) { |
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return $this->contextKey; |
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} |
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// Default to using the DataObject's DB table name as the unique identifier |
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return DataObject::getSchema()->baseDataTable(get_class($this->getSourceRecord())); |
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} |
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public function setContextKey($contextKey) |
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{ |
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$this->contextKey = (string) $contextKey; |
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return $this; |
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} |
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} |
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silverstripe /
silverstripe-versioned-admin
