87 lines
2.3 KiB
PHP
87 lines
2.3 KiB
PHP
<?php
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namespace Drupal\farm_location\Plugin\Field\FieldFormatter;
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use Drupal\Core\Field\FieldItemListInterface;
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use Drupal\Core\Field\Plugin\Field\FieldFormatter\EntityReferenceLabelFormatter;
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use Drupal\Core\Form\FormStateInterface;
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/**
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* Field formatter for the current location asset field.
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*
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* @FieldFormatter(
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* id = "asset_current_location",
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* label = @Translation("Asset current location"),
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* description = @Translation("Display the label of the referenced entities."),
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* field_types = {
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* "entity_reference"
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* }
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* )
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*/
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class AssetCurrentLocationFormatter extends EntityReferenceLabelFormatter {
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/**
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* {@inheritdoc}
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*/
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public static function defaultSettings() {
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return [
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'render_without_location' => FALSE,
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] + parent::defaultSettings();
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}
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/**
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* {@inheritdoc}
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*/
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public function settingsForm(array $form, FormStateInterface $form_state) {
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$elements = parent::settingsForm($form, $form_state);
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$elements['render_without_location'] = [
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'#title' => $this->t('Render without location'),
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'#description' => $this->t('Include this field when the asset has no current location.'),
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'#type' => 'checkbox',
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'#default_value' => $this->getSetting('render_without_location'),
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];
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return $elements;
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}
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/**
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* {@inheritdoc}
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*/
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public function settingsSummary() {
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$summary = parent::settingsSummary();
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$summary[] = $this->getSetting('render_without_location') ? $this->t('Render without current location') : $this->t('Do not render without current location');
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return $summary;
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}
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/**
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* {@inheritdoc}
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*/
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public function viewElements(FieldItemListInterface $items, $langcode) {
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// Build labels in parent.
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$elements = parent::viewElements($items, $langcode);
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// Get the asset.
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$asset = $items->getEntity();
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// If the asset is fixed don't render additional information.
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if ($asset->get('is_fixed')->value) {
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return $elements;
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}
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// If there are no current locations only render if configured to.
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if (empty($elements) && !$this->getSetting('render_without_location')) {
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return $elements;
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}
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// Add N/A if there are no current locations.
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if (empty($elements)) {
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// Render N/A if configured.
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$elements[] = ['#markup' => 'N/A'];
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}
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return $elements;
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}
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}
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