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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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class HistoryViewerField extends FormField |
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{ |
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/** |
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* The default pagination page size |
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* |
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* @config |
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* @var int |
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*/ |
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private static $default_page_size = 30; |
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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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protected $schemaComponent = 'HistoryViewer'; |
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protected $inputType = ''; |
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public function __construct($name, $title = null, $value = null) |
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{ |
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parent::__construct($name, $title, $value); |
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} |
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protected function setupDefaultClasses() |
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{ |
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parent::setupDefaultClasses(); |
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$this->addExtraClass('fill-height'); |
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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 = $this->getSourceRecord(); |
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$previewEnabled = $record && $record instanceof CMSPreviewable; |
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$this->extend('updatePreviewEnabled', $previewEnabled, $record); |
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return $previewEnabled; |
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} |
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public function getContextKey() |
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{ |
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if ($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 $this; |
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} |
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/** |
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* Provide the necessary input data for React to power the history viewer |
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* |
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* {@inheritDoc} |
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*/ |
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public function getSchemaDataDefaults() |
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{ |
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$data = parent::getSchemaDataDefaults(); |
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$sourceRecord = $this->getSourceRecord(); |
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$data['data'] = array_merge($data['data'], [ |
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'recordId' => $sourceRecord ? $sourceRecord->ID : null, |
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'recordClass' => $sourceRecord ? $sourceRecord->ClassName : null, |
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'contextKey' => $this->getContextKey(), |
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'isPreviewable' => $this->getPreviewEnabled(), |
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'limit' => $this->config()->get('default_page_size'), |
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'offset' => 0, |
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'page' => 0, |
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]); |
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return $data; |
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} |
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/** |
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* When not used in a React form factory context, this adds the schema data to SilverStripe template |
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* rendered attributes lists |
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* |
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* @return array |
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*/ |
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public function getAttributes() |
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{ |
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$attributes = parent::getAttributes(); |
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$attributes['data-schema'] = json_encode($this->getSchemaData()); |
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return $attributes; |
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} |
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public function Type() |
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{ |
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return 'history-viewer__container'; |
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} |
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} |
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silverstripe /
silverstripe-versioned-admin
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