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<?php |
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/** |
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* @copyright Copyright (c) Flipbox Digital Limited |
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* @license https://github.com/flipboxfactory/craft-element-lists/LICENSE |
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* @link https://github.com/flipboxfactory/craft-element-lists/ |
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*/ |
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namespace flipbox\craft\element\lists\fields; |
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use Craft; |
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use craft\base\Element; |
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use craft\base\ElementInterface; |
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use craft\events\FieldElementEvent; |
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use craft\helpers\StringHelper; |
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use flipbox\craft\element\lists\relationships\RelationshipInterface; |
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/** |
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* @author Flipbox Factory <[email protected]> |
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* @since 2.0.0 |
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* |
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* @property string $settingsTemplate |
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*/ |
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trait ElementListTrait |
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{ |
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use ModifyElementQueryTrait, |
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NormalizeValueTrait, |
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InputTrait; |
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/** |
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* @var bool |
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*/ |
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protected $ignoreSearchKeywords = true; |
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/** |
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* Prepares the field’s value to be stored somewhere, like the content table or JSON-encoded in an entry |
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* revision table. |
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* |
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* Data types that are JSON-encodable are safe (arrays, integers, strings, booleans, etc). |
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* Whatever this returns should be something [[normalizeValue()]] can handle. |
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* |
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* @param mixed $value The raw field value |
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* @param ElementInterface|null $element The element the field is associated with, if there is one |
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* @return mixed The serialized field value |
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*/ |
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public function serializeValue($value, ElementInterface $element = null) |
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{ |
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return $this->normalizeValue($value, $element)->getRelationships()->pluck('targetId')->all(); |
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} |
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/** |
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* Returns whether the given value should be considered “empty” to a validator. |
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* |
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* @param mixed $value The field’s value |
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* @param ElementInterface $element The element the field is associated with, if there is one |
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* @return bool Whether the value should be considered “empty” |
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* @see Validator::$isEmpty |
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*/ |
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public function isValueEmpty($value, ElementInterface $element): bool |
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{ |
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return $this->normalizeValue($value, $element)->getRelationships()->isEmpty(); |
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} |
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/** |
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* /** |
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* Returns a static (non-editable) version of the field’s input HTML. |
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* |
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* This function is called to output field values when viewing entry drafts. |
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* |
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* @param mixed $value The field’s value |
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* @param ElementInterface $element The element the field is associated with |
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* @return string The static version of the field’s input HTML |
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* @throws \Twig\Error\LoaderError |
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* @throws \Twig\Error\RuntimeError |
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* @throws \Twig\Error\SyntaxError |
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*/ |
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public function getStaticHtml($value, ElementInterface $element): string |
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{ |
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$relationship = $this->normalizeValue($value, $element); |
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$value = $relationship->getCollection()->all(); |
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if (empty($value)) { |
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return '<p class="light">' . Craft::t('app', 'Nothing selected.') . '</p>'; |
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} |
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$view = Craft::$app->getView(); |
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$id = $view->formatInputId($this->handle); |
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$html = "<div id='{$id}' class='elementselect'><div class='elements'>"; |
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foreach ($value as $relatedElement) { |
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$html .= Craft::$app->getView()->renderTemplate('_elements/element', [ |
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'element' => $relatedElement |
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]); |
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} |
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$html .= '</div></div>'; |
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$nsId = $view->namespaceInputId($id); |
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$js = <<<JS |
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(new Craft.ElementThumbLoader()).load($('#{$nsId}')); |
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JS; |
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$view->registerJs($js); |
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return $html; |
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} |
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/** |
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* Returns the HTML that should be shown for this field in Table View. |
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* |
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* @param mixed $value The field’s value |
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* @param ElementInterface $element The element the field is associated with |
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* @return string The HTML that should be shown for this field in Table View |
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* @throws \Twig\Error\LoaderError |
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* @throws \Twig\Error\RuntimeError |
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* @throws \Twig\Error\SyntaxError |
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*/ |
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public function getTableAttributeHtml($value, ElementInterface $element): string |
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{ |
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$relationship = $this->normalizeValue($value, $element); |
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if (!$element = $relationship->getCollection()->first()) { |
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return ''; |
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} |
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return Craft::$app->getView()->renderTemplate('_elements/element', [ |
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'element' => $element |
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]); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getSearchKeywords($value, ElementInterface $element): string |
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{ |
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if ($this->ignoreSearchKeywords === true) { |
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return ''; |
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} |
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$relationship = $this->normalizeValue($value, $element); |
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$titles = []; |
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foreach ($relationship->getCollection()->all() as $relatedElement) { |
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$titles[] = (string)$relatedElement; |
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} |
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return StringHelper::toString($titles, ' '); |
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} |
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/** |
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* Identify whether a sort order should be enforced. |
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* |
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* @return bool |
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*/ |
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public function ensureSortOrder(): bool |
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{ |
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return $this->sortable; |
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} |
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/** |
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* Allow the settings to identify whether the element should be sortable |
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* |
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* @param bool $sortable |
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* @return $this |
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*/ |
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public function setSortable(bool $sortable = null) |
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{ |
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$this->sortable = ($sortable === true); |
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return $this; |
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} |
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/** |
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* Get the sortable attribute value |
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* |
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* @return bool |
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*/ |
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public function getSortable(): bool |
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{ |
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return $this->sortable; |
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} |
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/** |
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* @inheritDoc |
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* @throws \Twig\Error\LoaderError |
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* @throws \Twig\Error\RuntimeError |
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* @throws \Twig\Error\SyntaxError |
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*/ |
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public function getSettingsHtml() |
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{ |
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/** @var ElementInterface|string $elementType */ |
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$elementType = $this->elementType(); |
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return Craft::$app->getView()->renderTemplate( |
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'element-lists/_components/fieldtypes/settings', |
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[ |
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'settingsTemplate' => $this->settingsTemplate, |
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'field' => $this, |
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'pluralElementType' => $elementType::pluralDisplayName(), |
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] |
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); |
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} |
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/** |
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* Our value is not an ElementQueryInterface and therefore we should handle it |
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* differently. |
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* |
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* @inheritdoc |
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*/ |
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public function afterElementSave(ElementInterface $element, bool $isNew) |
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{ |
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// Skip if the element is just propagating, and we're not localizing relations |
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/** @var Element $element */ |
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if (!$element->propagating || $this->localizeRelations) { |
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/** @var RelationshipInterface $value */ |
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$value = $element->getFieldValue($this->handle); |
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if ($value->isMutated()) { |
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$value->save(); |
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} |
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} |
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// Trigger an 'afterElementSave' event |
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if ($this->hasEventHandlers(self::EVENT_AFTER_ELEMENT_SAVE)) { |
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$this->trigger(self::EVENT_AFTER_ELEMENT_SAVE, new FieldElementEvent([ |
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'element' => $element, |
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'isNew' => $isNew, |
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])); |
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} |
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} |
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} |
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: