class EntityReferenceAutocompleteWidget
Same name in other branches
- 9 core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/EntityReferenceAutocompleteWidget.php \Drupal\Core\Field\Plugin\Field\FieldWidget\EntityReferenceAutocompleteWidget
- 8.9.x core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/EntityReferenceAutocompleteWidget.php \Drupal\Core\Field\Plugin\Field\FieldWidget\EntityReferenceAutocompleteWidget
- 11.x core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/EntityReferenceAutocompleteWidget.php \Drupal\Core\Field\Plugin\Field\FieldWidget\EntityReferenceAutocompleteWidget
Plugin implementation of the 'entity_reference_autocomplete' widget.
Hierarchy
- class \Drupal\Component\Plugin\PluginBase implements \Drupal\Component\Plugin\PluginInspectionInterface, \Drupal\Component\Plugin\DerivativeInspectionInterface
- class \Drupal\Core\Plugin\PluginBase extends \Drupal\Component\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait
- class \Drupal\Core\Field\PluginSettingsBase extends \Drupal\Core\Plugin\PluginBase implements \Drupal\Core\Field\PluginSettingsInterface, \Drupal\Component\Plugin\DependentPluginInterface
- class \Drupal\Core\Field\WidgetBase extends \Drupal\Core\Field\PluginSettingsBase implements \Drupal\Core\Field\WidgetInterface, \Drupal\Core\Plugin\ContainerFactoryPluginInterface
- class \Drupal\Core\Field\Plugin\Field\FieldWidget\EntityReferenceAutocompleteWidget extends \Drupal\Core\Field\WidgetBase
- class \Drupal\Core\Field\WidgetBase extends \Drupal\Core\Field\PluginSettingsBase implements \Drupal\Core\Field\WidgetInterface, \Drupal\Core\Plugin\ContainerFactoryPluginInterface
- class \Drupal\Core\Field\PluginSettingsBase extends \Drupal\Core\Plugin\PluginBase implements \Drupal\Core\Field\PluginSettingsInterface, \Drupal\Component\Plugin\DependentPluginInterface
- class \Drupal\Core\Plugin\PluginBase extends \Drupal\Component\Plugin\PluginBase uses \Drupal\Core\StringTranslation\StringTranslationTrait, \Drupal\Core\DependencyInjection\DependencySerializationTrait, \Drupal\Core\Messenger\MessengerTrait
Expanded class hierarchy of EntityReferenceAutocompleteWidget
File
-
core/
lib/ Drupal/ Core/ Field/ Plugin/ Field/ FieldWidget/ EntityReferenceAutocompleteWidget.php, line 16
Namespace
Drupal\Core\Field\Plugin\Field\FieldWidgetView source
class EntityReferenceAutocompleteWidget extends WidgetBase {
/**
* {@inheritdoc}
*/
public static function defaultSettings() {
return [
'match_operator' => 'CONTAINS',
'match_limit' => 10,
'size' => 60,
'placeholder' => '',
] + parent::defaultSettings();
}
/**
* {@inheritdoc}
*/
public function settingsForm(array $form, FormStateInterface $form_state) {
$element['match_operator'] = [
'#type' => 'radios',
'#title' => $this->t('Autocomplete matching'),
'#default_value' => $this->getSetting('match_operator'),
'#options' => $this->getMatchOperatorOptions(),
'#description' => $this->t('Select the method used to collect autocomplete suggestions. Note that <em>Contains</em> can cause performance issues on sites with thousands of entities.'),
];
$element['match_limit'] = [
'#type' => 'number',
'#title' => $this->t('Number of results'),
'#default_value' => $this->getSetting('match_limit'),
'#min' => 0,
'#description' => $this->t('The number of suggestions that will be listed. Use <em>0</em> to remove the limit.'),
];
$element['size'] = [
'#type' => 'number',
'#title' => $this->t('Size of textfield'),
'#default_value' => $this->getSetting('size'),
'#min' => 1,
'#required' => TRUE,
];
$element['placeholder'] = [
'#type' => 'textfield',
'#title' => $this->t('Placeholder'),
'#default_value' => $this->getSetting('placeholder'),
'#description' => $this->t('Text that will be shown inside the field until a value is entered. This hint is usually a sample value or a brief description of the expected format.'),
];
return $element;
}
/**
* {@inheritdoc}
*/
public function settingsSummary() {
$summary = [];
$operators = $this->getMatchOperatorOptions();
$summary[] = $this->t('Autocomplete matching: @match_operator', [
'@match_operator' => $operators[$this->getSetting('match_operator')],
]);
$size = $this->getSetting('match_limit') ?: $this->t('unlimited');
$summary[] = $this->t('Autocomplete suggestion list size: @size', [
'@size' => $size,
]);
$summary[] = $this->t('Textfield size: @size', [
'@size' => $this->getSetting('size'),
]);
$placeholder = $this->getSetting('placeholder');
if (!empty($placeholder)) {
$summary[] = $this->t('Placeholder: @placeholder', [
'@placeholder' => $placeholder,
]);
}
else {
$summary[] = $this->t('No placeholder');
}
return $summary;
}
/**
* {@inheritdoc}
*/
public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
$entity = $items->getEntity();
$referenced_entities = $items->referencedEntities();
$selection_settings = [];
// Append the match operation to the selection settings.
if ($this->getFieldSetting('handler_settings') !== NULL) {
$selection_settings = $this->getFieldSetting('handler_settings');
}
$selection_settings += [
'match_operator' => $this->getSetting('match_operator'),
'match_limit' => $this->getSetting('match_limit'),
];
// Append the entity if it is already created.
if (!$entity->isNew()) {
$selection_settings['entity'] = $entity;
}
$element += [
'#type' => 'entity_autocomplete',
'#target_type' => $this->getFieldSetting('target_type'),
'#selection_handler' => $this->getFieldSetting('handler'),
'#selection_settings' => $selection_settings,
// Entity reference field items are handling validation themselves via
// the 'ValidReference' constraint.
'#validate_reference' => FALSE,
'#maxlength' => 1024,
'#default_value' => $referenced_entities[$delta] ?? NULL,
'#size' => $this->getSetting('size'),
'#placeholder' => $this->getSetting('placeholder'),
];
if ($bundle = $this->getAutocreateBundle()) {
$element['#autocreate'] = [
'bundle' => $bundle,
'uid' => $entity instanceof EntityOwnerInterface ? $entity->getOwnerId() : \Drupal::currentUser()->id(),
];
}
return [
'target_id' => $element,
];
}
/**
* {@inheritdoc}
*/
public function errorElement(array $element, ConstraintViolationInterface $error, array $form, FormStateInterface $form_state) {
return $element['target_id'];
}
/**
* {@inheritdoc}
*/
public function massageFormValues(array $values, array $form, FormStateInterface $form_state) {
foreach ($values as $key => $value) {
// The entity_autocomplete form element returns an array when an entity
// was "autocreated", so we need to move it up a level.
if (is_array($value['target_id'])) {
unset($values[$key]['target_id']);
$values[$key] += $value['target_id'];
}
}
return $values;
}
/**
* Returns the name of the bundle which will be used for autocreated entities.
*
* @return string
* The bundle name. If autocreate is not active, NULL will be returned.
*/
protected function getAutocreateBundle() {
$bundle = NULL;
if ($this->getSelectionHandlerSetting('auto_create')) {
$target_bundles = $this->getSelectionHandlerSetting('target_bundles');
// If there's no target bundle at all, use the target_type. It's the
// default for bundleless entity types.
if (empty($target_bundles)) {
$bundle = $this->getFieldSetting('target_type');
}
elseif (count($target_bundles) == 1) {
$bundle = reset($target_bundles);
}
elseif (!($bundle = $this->getSelectionHandlerSetting('auto_create_bundle'))) {
// If no bundle has been set as auto create target means that there is
// an inconsistency in entity reference field settings.
trigger_error(sprintf("The 'Create referenced entities if they don't already exist' option is enabled but a specific destination bundle is not set. You should re-visit and fix the settings of the '%s' (%s) field.", $this->fieldDefinition
->getLabel(), $this->fieldDefinition
->getName()), E_USER_WARNING);
}
}
return $bundle;
}
/**
* Returns the value of a setting for the entity reference selection handler.
*
* @param string $setting_name
* The setting name.
*
* @return mixed
* The setting value.
*/
protected function getSelectionHandlerSetting($setting_name) {
$settings = $this->getFieldSetting('handler_settings');
return $settings[$setting_name] ?? NULL;
}
/**
* Returns the options for the match operator.
*
* @return array
* List of options.
*/
protected function getMatchOperatorOptions() {
return [
'STARTS_WITH' => $this->t('Starts with'),
'CONTAINS' => $this->t('Contains'),
];
}
}
Members
Title Sort descending | Modifiers | Object type | Summary | Overriden Title | Overrides |
---|---|---|---|---|---|
EntityReferenceAutocompleteWidget::defaultSettings | public static | function | Defines the default settings for this plugin. | Overrides PluginSettingsBase::defaultSettings | |
EntityReferenceAutocompleteWidget::errorElement | public | function | Assigns a field-level validation error to the right widget sub-element. | Overrides WidgetBase::errorElement | |
EntityReferenceAutocompleteWidget::formElement | public | function | Returns the form for a single field widget. | Overrides WidgetInterface::formElement | 1 |
EntityReferenceAutocompleteWidget::getAutocreateBundle | protected | function | Returns the name of the bundle which will be used for autocreated entities. | ||
EntityReferenceAutocompleteWidget::getMatchOperatorOptions | protected | function | Returns the options for the match operator. | ||
EntityReferenceAutocompleteWidget::getSelectionHandlerSetting | protected | function | Returns the value of a setting for the entity reference selection handler. | ||
EntityReferenceAutocompleteWidget::massageFormValues | public | function | Massages the form values into the format expected for field values. | Overrides WidgetBase::massageFormValues | 1 |
EntityReferenceAutocompleteWidget::settingsForm | public | function | Returns a form to configure settings for the widget. | Overrides WidgetBase::settingsForm | |
EntityReferenceAutocompleteWidget::settingsSummary | public | function | Returns a short summary for the current widget settings. | Overrides WidgetBase::settingsSummary | |
PluginInspectionInterface::getPluginDefinition | public | function | Gets the definition of the plugin implementation. | 6 | |
PluginInspectionInterface::getPluginId | public | function | Gets the plugin ID of the plugin instance. | 2 | |
PluginSettingsBase::$defaultSettingsMerged | protected | property | Whether default settings have been merged into the current $settings. | ||
PluginSettingsBase::$thirdPartySettings | protected | property | The plugin settings injected by third party modules. | ||
PluginSettingsBase::calculateDependencies | public | function | Calculates dependencies for the configured plugin. | Overrides DependentPluginInterface::calculateDependencies | 6 |
PluginSettingsBase::getSetting | public | function | Returns the value of a setting, or its default value if absent. | Overrides PluginSettingsInterface::getSetting | |
PluginSettingsBase::getSettings | public | function | Returns the array of settings, including defaults for missing settings. | Overrides PluginSettingsInterface::getSettings | |
PluginSettingsBase::getThirdPartyProviders | public | function | Gets the list of third parties that store information. | Overrides ThirdPartySettingsInterface::getThirdPartyProviders | |
PluginSettingsBase::getThirdPartySetting | public | function | Gets the value of a third-party setting. | Overrides ThirdPartySettingsInterface::getThirdPartySetting | |
PluginSettingsBase::getThirdPartySettings | public | function | Gets all third-party settings of a given module. | Overrides ThirdPartySettingsInterface::getThirdPartySettings | |
PluginSettingsBase::mergeDefaults | protected | function | Merges default settings values into $settings. | ||
PluginSettingsBase::onDependencyRemoval | public | function | Informs the plugin that some configuration it depends on will be deleted. | Overrides PluginSettingsInterface::onDependencyRemoval | 3 |
PluginSettingsBase::setSetting | public | function | Sets the value of a setting for the plugin. | Overrides PluginSettingsInterface::setSetting | |
PluginSettingsBase::setSettings | public | function | Sets the settings for the plugin. | Overrides PluginSettingsInterface::setSettings | |
PluginSettingsBase::setThirdPartySetting | public | function | Sets the value of a third-party setting. | Overrides ThirdPartySettingsInterface::setThirdPartySetting | |
PluginSettingsBase::unsetThirdPartySetting | public | function | Unsets a third-party setting. | Overrides ThirdPartySettingsInterface::unsetThirdPartySetting | |
WidgetBase::$fieldDefinition | protected | property | The field definition. | ||
WidgetBase::$settings | protected | property | The widget settings. | Overrides PluginSettingsBase::$settings | |
WidgetBase::addMoreAjax | public static | function | Ajax callback for the "Add another item" button. | ||
WidgetBase::addMoreSubmit | public static | function | Submission handler for the "Add another item" button. | ||
WidgetBase::afterBuild | public static | function | After-build handler for field elements in a form. | ||
WidgetBase::create | public static | function | Creates an instance of the plugin. | Overrides ContainerFactoryPluginInterface::create | 5 |
WidgetBase::deleteAjax | public static | function | Ajax refresh callback for the "Remove" button. | ||
WidgetBase::deleteSubmit | public static | function | Ajax submit callback for the "Remove" button. | ||
WidgetBase::extractFormValues | public | function | Extracts field values from submitted form values. | Overrides WidgetBaseInterface::extractFormValues | 3 |
WidgetBase::flagErrors | public | function | Reports field-level validation errors against actual form elements. | Overrides WidgetBaseInterface::flagErrors | 2 |
WidgetBase::form | public | function | Creates a form element for a field. | Overrides WidgetBaseInterface::form | 3 |
WidgetBase::formMultipleElements | protected | function | Special handling to create form elements for multiple values. | 1 | |
WidgetBase::formSingleElement | protected | function | Generates the form element for a single copy of the widget. | ||
WidgetBase::getFieldSetting | protected | function | Returns the value of a field setting. | ||
WidgetBase::getFieldSettings | protected | function | Returns the array of field settings. | ||
WidgetBase::getFilteredDescription | protected | function | Returns the filtered field description. | ||
WidgetBase::getWidgetState | public static | function | Retrieves processing information about the widget from $form_state. | Overrides WidgetBaseInterface::getWidgetState | |
WidgetBase::getWidgetStateParents | protected static | function | Returns the location of processing information within $form_state. | ||
WidgetBase::handlesMultipleValues | protected | function | Returns whether the widget handles multiple values. | ||
WidgetBase::isApplicable | public static | function | Returns if the widget can be used for the provided field. | Overrides WidgetInterface::isApplicable | 4 |
WidgetBase::isDefaultValueWidget | protected | function | Returns whether the widget used for default value form. | ||
WidgetBase::setWidgetState | public static | function | Stores processing information about the widget in $form_state. | Overrides WidgetBaseInterface::setWidgetState | |
WidgetBase::__construct | public | function | Constructs a WidgetBase object. | 5 |
Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.