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<?php |
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namespace SilverStripe\VersionedAdmin\Forms; |
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use InvalidArgumentException; |
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use SilverStripe\Control\RequestHandler; |
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use SilverStripe\Core\Config\Configurable; |
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use SilverStripe\Core\Extensible; |
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use SilverStripe\Core\Injector\Injectable; |
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use SilverStripe\Forms\FieldList; |
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use SilverStripe\Forms\Form; |
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use SilverStripe\Forms\FormFactory; |
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use SilverStripe\Forms\FormField; |
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use SilverStripe\Forms\Tab; |
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use SilverStripe\ORM\DataObject; |
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class DataObjectVersionFormFactory implements FormFactory |
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{ |
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use Configurable; |
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use Extensible; |
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use Injectable; |
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/** |
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* View a version of the record, readonly: Default. |
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* |
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* @var string |
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*/ |
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public const TYPE_HISTORY = 'history'; |
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/** |
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* Define context types that will automatically be converted to readonly forms |
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* |
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* @config |
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* @var string[] |
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*/ |
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private static $readonly_types = [ |
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self::TYPE_HISTORY, |
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]; |
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public function getForm(RequestHandler $controller = null, $name = FormFactory::DEFAULT_NAME, $context = []) |
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{ |
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// Validate context |
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foreach ($this->getRequiredContext() as $required) { |
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if (!isset($context[$required])) { |
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throw new InvalidArgumentException("Missing required context $required"); |
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} |
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} |
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$fields = $this->getFormFields($controller, $name, $context); |
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$actions = $this->getFormActions($controller, $name, $context); |
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$form = Form::create($controller, $name, $fields, $actions); |
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$this->invokeWithExtensions('updateForm', $form, $controller, $name, $context); |
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// Populate form from record |
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if (isset($context['Record'])) { |
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/** @var DataObject $record */ |
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$record = $context['Record']; |
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$form->loadDataFrom($record); |
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// Mark as readonly for some types |
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if ($this->isReadonlyFormType($context)) { |
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$form->makeReadonly(); |
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} |
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} |
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$form->addExtraClass('form--fill-height form--no-dividers'); |
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return $form; |
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} |
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/** |
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* Get form type from 'type' context |
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* |
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* @param array $context |
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* @return string |
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*/ |
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public function getFormType(array $context) |
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{ |
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return empty($context['Type']) ? static::TYPE_HISTORY : $context['Type']; |
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} |
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/** |
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* Get whether the current form type should be treated as readonly |
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* |
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* @param array $context |
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* @return bool |
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*/ |
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public function isReadonlyFormType(array $context) |
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{ |
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return in_array($this->getFormType($context), $this->config()->get('readonly_types')); |
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} |
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protected function getFormFields(RequestHandler $controller = null, $name, $context = []) |
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{ |
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$record = $context['Record']; |
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/** @var FieldList $fields */ |
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$fields = $record->getCMSFields(); |
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$this->removeHistoryViewerFields($fields); |
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$this->removeSelectedRightTitles($fields); |
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$this->invokeWithExtensions('updateFormFields', $fields, $controller, $name, $context); |
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return $fields; |
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} |
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/** |
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* Do not return {@link HistoryViewerField} instances in the form - remove them if they are found |
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* |
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* @param FieldList $fields |
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*/ |
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protected function removeHistoryViewerFields(FieldList $fields) |
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{ |
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// Remove HistoryViewerFields |
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$fields->recursiveWalk(function (FormField $field) { |
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if ($field instanceof HistoryViewerField) { |
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$field->getContainerFieldList()->remove($field); |
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} |
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}); |
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// Cleanup empty tabs after removing HistoryViewerFields |
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$fields->recursiveWalk(function (FormField $field) { |
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if ($field instanceof Tab && !$field->Fields()->count()) { |
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$field->getContainerFieldList()->remove($field); |
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} |
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}); |
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} |
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/** |
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* Remove right titles from selected form fields by default |
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* |
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* @param FieldList $fields |
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*/ |
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protected function removeSelectedRightTitles(FieldList $fields) |
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{ |
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$noRightTitle = ['MetaDescription', 'ExtraMeta']; |
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foreach ($noRightTitle as $fieldName) { |
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if ($field = $fields->dataFieldByName($fieldName)) { |
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$field->setRightTitle(''); |
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} |
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} |
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} |
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protected function getFormActions(RequestHandler $controller = null, $formName, $context = []) |
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{ |
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$actions = FieldList::create(); |
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$this->invokeWithExtensions('updateFormActions', $actions, $controller, $formName, $context); |
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return $actions; |
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} |
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public function getRequiredContext() |
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{ |
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return ['Record']; |
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} |
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} |
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