Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Entity/EntityViewBuilder.php \Drupal\Core\Entity\EntityViewBuilder::getSingleFieldDisplay()
2. 8.9.x core/lib/Drupal/Core/Entity/EntityViewBuilder.php \Drupal\Core\Entity\EntityViewBuilder::getSingleFieldDisplay()
3. 10 core/lib/Drupal/Core/Entity/EntityViewBuilder.php \Drupal\Core\Entity\EntityViewBuilder::getSingleFieldDisplay()

Gets an EntityViewDisplay for rendering an individual field.

Parameters

\Drupal\Core\Entity\EntityInterface $entity: The entity.

string $field_name: The field name.

string|array $display_options: The display options passed to the viewField() method.

Return value

\Drupal\Core\Entity\Display\EntityViewDisplayInterface

1 call to EntityViewBuilder::getSingleFieldDisplay()

EntityViewBuilder::viewField in core/lib/Drupal/Core/Entity/EntityViewBuilder.php

Builds a renderable array for the value of a single field in an entity.

File

core/lib/Drupal/Core/Entity/EntityViewBuilder.php, line 505

Class

EntityViewBuilder

Base class for entity view builders.

Namespace

Drupal\Core\Entity

Code

protected function getSingleFieldDisplay($entity, $field_name, $display_options) {
    if (is_string($display_options)) {
        // View mode: use the Display configured for the view mode.
        $view_mode = $display_options;
        $display = EntityViewDisplay::collectRenderDisplay($entity, $view_mode);
        // Hide all fields except the current one.
        foreach (array_keys($entity->getFieldDefinitions()) as $name) {
            if ($name != $field_name) {
                $display->removeComponent($name);
            }
        }
    }
    else {
        // Array of custom display options: use a runtime Display for the
        // '_custom' view mode. Persist the displays created, to reduce the number
        // of objects (displays and formatter plugins) created when rendering a
        // series of fields individually for cases such as views tables.
        $entity_type_id = $entity->getEntityTypeId();
        $bundle = $entity->bundle();
        $key = $entity_type_id . ':' . $bundle . ':' . $field_name . ':' . Crypt::hashBase64(serialize($display_options));
        if (!isset($this->singleFieldDisplays[$key])) {
            $this->singleFieldDisplays[$key] = EntityViewDisplay::create([
                'targetEntityType' => $entity_type_id,
                'bundle' => $bundle,
                'status' => TRUE,
            ])->setComponent($field_name, $display_options);
        }
        $display = $this->singleFieldDisplays[$key];
    }
    return $display;
}

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