FieldBlock.php
Same filename in this branch
Same filename in other branches
- 9 core/modules/layout_builder/src/Plugin/Block/FieldBlock.php
- 9 core/modules/layout_builder/tests/modules/layout_builder_fieldblock_test/src/Plugin/Block/FieldBlock.php
- 8.9.x core/modules/layout_builder/src/Plugin/Block/FieldBlock.php
- 8.9.x core/modules/layout_builder/tests/modules/layout_builder_fieldblock_test/src/Plugin/Block/FieldBlock.php
- 10 core/modules/layout_builder/src/Plugin/Block/FieldBlock.php
- 10 core/modules/layout_builder/tests/modules/layout_builder_fieldblock_test/src/Plugin/Block/FieldBlock.php
Namespace
Drupal\layout_builder\Plugin\BlockFile
-
core/
modules/ layout_builder/ src/ Plugin/ Block/ FieldBlock.php
View source
<?php
namespace Drupal\layout_builder\Plugin\Block;
use Drupal\Component\Plugin\Factory\DefaultFactory;
use Drupal\Component\Utility\NestedArray;
use Drupal\Core\Access\AccessResult;
use Drupal\Core\Block\Attribute\Block;
use Drupal\Core\Block\BlockBase;
use Drupal\Core\Cache\CacheableMetadata;
use Drupal\Core\Entity\EntityDisplayBase;
use Drupal\Core\Entity\EntityFieldManagerInterface;
use Drupal\Core\Entity\FieldableEntityInterface;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FormatterInterface;
use Drupal\Core\Field\FormatterPluginManager;
use Drupal\Core\Form\EnforcedResponseException;
use Drupal\Core\Form\FormHelper;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\Core\Plugin\ContextAwarePluginInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\field\FieldConfigInterface;
use Drupal\layout_builder\Plugin\Derivative\FieldBlockDeriver;
use Psr\Log\LoggerInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\field\FieldLabelOptionsTrait;
/**
* Provides a block that renders a field from an entity.
*
* @internal
* Plugin classes are internal.
*/
class FieldBlock extends BlockBase implements ContextAwarePluginInterface, ContainerFactoryPluginInterface {
use FieldLabelOptionsTrait;
/**
* The entity field manager.
*
* @var \Drupal\Core\Entity\EntityFieldManagerInterface
*/
protected $entityFieldManager;
/**
* The formatter manager.
*
* @var \Drupal\Core\Field\FormatterPluginManager
*/
protected $formatterManager;
/**
* The entity type ID.
*
* @var string
*/
protected $entityTypeId;
/**
* The bundle ID.
*
* @var string
*/
protected $bundle;
/**
* The field name.
*
* @var string
*/
protected $fieldName;
/**
* The field definition.
*
* @var \Drupal\Core\Field\FieldDefinitionInterface
*/
protected $fieldDefinition;
/**
* The module handler.
*
* @var \Drupal\Core\Extension\ModuleHandlerInterface
*/
protected $moduleHandler;
/**
* The logger.
*
* @var \Psr\Log\LoggerInterface
*/
protected $logger;
/**
* Constructs a new FieldBlock.
*
* @param array $configuration
* A configuration array containing information about the plugin instance.
* @param string $plugin_id
* The plugin ID for the plugin instance.
* @param mixed $plugin_definition
* The plugin implementation definition.
* @param \Drupal\Core\Entity\EntityFieldManagerInterface $entity_field_manager
* The entity field manager.
* @param \Drupal\Core\Field\FormatterPluginManager $formatter_manager
* The formatter manager.
* @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
* The module handler.
* @param \Psr\Log\LoggerInterface $logger
* The logger.
*/
public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityFieldManagerInterface $entity_field_manager, FormatterPluginManager $formatter_manager, ModuleHandlerInterface $module_handler, LoggerInterface $logger) {
$this->entityFieldManager = $entity_field_manager;
$this->formatterManager = $formatter_manager;
$this->moduleHandler = $module_handler;
$this->logger = $logger;
// Get the entity type and field name from the plugin ID.
[
,
$entity_type_id,
$bundle,
$field_name,
] = explode(static::DERIVATIVE_SEPARATOR, $plugin_id, 4);
$this->entityTypeId = $entity_type_id;
$this->bundle = $bundle;
$this->fieldName = $field_name;
parent::__construct($configuration, $plugin_id, $plugin_definition);
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static($configuration, $plugin_id, $plugin_definition, $container->get('entity_field.manager'), $container->get('plugin.manager.field.formatter'), $container->get('module_handler'), $container->get('logger.channel.layout_builder'));
}
/**
* Gets the entity that has the field.
*
* @return \Drupal\Core\Entity\FieldableEntityInterface
* The entity.
*/
protected function getEntity() {
return $this->getContextValue('entity');
}
/**
* {@inheritdoc}
*/
public function build() {
$display_settings = $this->getConfiguration()['formatter'];
$display_settings['third_party_settings']['layout_builder']['view_mode'] = $this->getContextValue('view_mode');
$entity = $this->getEntity();
try {
$build = [];
$view = $entity->get($this->fieldName)
->view($display_settings);
if ($view) {
$build = [
$view,
];
}
} catch (EnforcedResponseException $e) {
throw $e;
} catch (\Exception $e) {
$build = [];
$this->logger
->warning('The field "%field" failed to render with the error of "%error".', [
'%field' => $this->fieldName,
'%error' => $e->getMessage(),
]);
}
CacheableMetadata::createFromRenderArray($build)->addCacheableDependency($this)
->applyTo($build);
return $build;
}
/**
* {@inheritdoc}
*/
public function getPreviewFallbackString() {
return new TranslatableMarkup('"@field" field', [
'@field' => $this->getFieldDefinition()
->getLabel(),
]);
}
/**
* {@inheritdoc}
*/
protected function blockAccess(AccountInterface $account) {
$entity = $this->getEntity();
// First consult the entity.
$access = $entity->access('view', $account, TRUE);
if (!$access->isAllowed()) {
return $access;
}
// Check that the entity in question has this field.
if (!$entity instanceof FieldableEntityInterface || !$entity->hasField($this->fieldName)) {
return $access->andIf(AccessResult::forbidden());
}
// Check field access.
$field = $entity->get($this->fieldName);
$access = $access->andIf($field->access('view', $account, TRUE));
if (!$access->isAllowed()) {
return $access;
}
// Check to see if the field has any values or a default value.
if ($field->isEmpty() && !$this->entityFieldHasDefaultValue()) {
return $access->andIf(AccessResult::forbidden());
}
return $access;
}
/**
* {@inheritdoc}
*/
public function defaultConfiguration() {
return [
'label_display' => FALSE,
'formatter' => [
'label' => 'above',
'type' => $this->pluginDefinition['default_formatter'],
'settings' => [],
'third_party_settings' => [],
],
];
}
/**
* {@inheritdoc}
*/
public function blockForm($form, FormStateInterface $form_state) {
$config = $this->getConfiguration();
$form['formatter'] = [
'#tree' => TRUE,
'#process' => [
[
$this,
'formatterSettingsProcessCallback',
],
],
];
$form['formatter']['label'] = [
'#type' => 'select',
'#title' => $this->t('Label'),
'#options' => $this->getFieldLabelOptions(),
'#default_value' => $config['formatter']['label'],
];
$form['formatter']['type'] = [
'#type' => 'select',
'#title' => $this->t('Formatter'),
'#options' => $this->getApplicablePluginOptions($this->getFieldDefinition()),
'#required' => TRUE,
'#default_value' => $config['formatter']['type'],
'#ajax' => [
'callback' => [
static::class,
'formatterSettingsAjaxCallback',
],
'wrapper' => 'formatter-settings-wrapper',
],
];
// Add the formatter settings to the form via AJAX.
$form['formatter']['settings_wrapper'] = [
'#prefix' => '<div id="formatter-settings-wrapper">',
'#suffix' => '</div>',
];
return $form;
}
/**
* Render API callback: builds the formatter settings elements.
*/
public function formatterSettingsProcessCallback(array &$element, FormStateInterface $form_state, array &$complete_form) {
if ($formatter = $this->getFormatter($element['#parents'], $form_state)) {
$element['settings_wrapper']['settings'] = $formatter->settingsForm($complete_form, $form_state);
$element['settings_wrapper']['settings']['#parents'] = array_merge($element['#parents'], [
'settings',
]);
$element['settings_wrapper']['third_party_settings'] = $this->thirdPartySettingsForm($formatter, $this->getFieldDefinition(), $complete_form, $form_state);
$element['settings_wrapper']['third_party_settings']['#parents'] = array_merge($element['#parents'], [
'third_party_settings',
]);
FormHelper::rewriteStatesSelector($element['settings_wrapper'], "fields[{$this->fieldName}][settings_edit_form]", 'settings[formatter]');
// Store the array parents for our element so that we can retrieve the
// formatter settings in our AJAX callback.
$form_state->set('field_block_array_parents', $element['#array_parents']);
}
return $element;
}
/**
* Adds the formatter third party settings forms.
*
* @param \Drupal\Core\Field\FormatterInterface $plugin
* The formatter.
* @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
* The field definition.
* @param array $form
* The (entire) configuration form array.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The form state.
*
* @return array
* The formatter third party settings form.
*/
protected function thirdPartySettingsForm(FormatterInterface $plugin, FieldDefinitionInterface $field_definition, array $form, FormStateInterface $form_state) {
$settings_form = [];
// Invoke hook_field_formatter_third_party_settings_form(), keying resulting
// subforms by module name.
$this->moduleHandler
->invokeAllWith('field_formatter_third_party_settings_form', function (callable $hook, string $module) use (&$settings_form, $plugin, $field_definition, $form, $form_state) {
$settings_form[$module] = $hook($plugin, $field_definition, EntityDisplayBase::CUSTOM_MODE, $form, $form_state);
});
return $settings_form;
}
/**
* Render API callback: gets the layout settings elements.
*/
public static function formatterSettingsAjaxCallback(array $form, FormStateInterface $form_state) {
$formatter_array_parents = $form_state->get('field_block_array_parents');
return NestedArray::getValue($form, array_merge($formatter_array_parents, [
'settings_wrapper',
]));
}
/**
* {@inheritdoc}
*/
public function blockSubmit($form, FormStateInterface $form_state) {
$this->configuration['formatter'] = $form_state->getValue('formatter');
}
/**
* Gets the field definition.
*
* @return \Drupal\Core\Field\FieldDefinitionInterface
* The field definition.
*/
protected function getFieldDefinition() {
if (empty($this->fieldDefinition)) {
$field_definitions = $this->entityFieldManager
->getFieldDefinitions($this->entityTypeId, $this->bundle);
$this->fieldDefinition = $field_definitions[$this->fieldName];
}
return $this->fieldDefinition;
}
/**
* Returns an array of applicable formatter options for a field.
*
* @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
* The field definition.
*
* @return array
* An array of applicable formatter options.
*
* @see \Drupal\field_ui\Form\EntityDisplayFormBase::getApplicablePluginOptions()
*/
protected function getApplicablePluginOptions(FieldDefinitionInterface $field_definition) {
$options = $this->formatterManager
->getOptions($field_definition->getType());
$applicable_options = [];
foreach ($options as $option => $label) {
$plugin_class = DefaultFactory::getPluginClass($option, $this->formatterManager
->getDefinition($option));
if ($plugin_class::isApplicable($field_definition)) {
$applicable_options[$option] = $label;
}
}
return $applicable_options;
}
/**
* Gets the formatter object.
*
* @param array $parents
* The #parents of the element representing the formatter.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The current state of the form.
*
* @return \Drupal\Core\Field\FormatterInterface
* The formatter object.
*/
protected function getFormatter(array $parents, FormStateInterface $form_state) {
// Use the processed values, if available.
$configuration = NestedArray::getValue($form_state->getValues(), $parents);
if (!$configuration) {
// Next check the raw user input.
$configuration = NestedArray::getValue($form_state->getUserInput(), $parents);
if (!$configuration) {
// If no user input exists, use the default values.
$configuration = $this->getConfiguration()['formatter'];
}
}
return $this->formatterManager
->getInstance([
'configuration' => $configuration,
'field_definition' => $this->getFieldDefinition(),
'view_mode' => EntityDisplayBase::CUSTOM_MODE,
'prepare' => TRUE,
]);
}
/**
* Checks whether there is a default value set on the field.
*
* @return bool
* TRUE if default value set, FALSE otherwise.
*/
protected function entityFieldHasDefaultValue() : bool {
$entity = $this->getEntity();
$field = $entity->get($this->fieldName);
$definition = $field->getFieldDefinition();
if ($definition->getDefaultValue($entity)) {
return TRUE;
}
// @todo Remove special handling of image fields after
// https://www.drupal.org/project/drupal/issues/3005528.
if ($definition->getType() !== 'image') {
return FALSE;
}
$default_image = $definition->getSetting('default_image');
// If we are dealing with a configurable field, look in both instance-level
// and field-level settings.
if (empty($default_image['uuid']) && $definition instanceof FieldConfigInterface) {
$default_image = $definition->getFieldStorageDefinition()
->getSetting('default_image');
}
return !empty($default_image['uuid']);
}
}
Classes
Title | Deprecated | Summary |
---|---|---|
FieldBlock | Provides a block that renders a field from an entity. |
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.