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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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emteknetnz