1 {% extends "base/class.php.twig" %}
4 \Drupal\{{ module }}\Plugin\Field\FieldType\{{ class_name }}.
7 {% block namespace_class %}
8 namespace Drupal\{{ module }}\Plugin\Field\FieldType;
12 use Drupal\Component\Utility\Random;
13 use Drupal\Core\Field\FieldDefinitionInterface;
14 use Drupal\Core\Field\FieldItemBase;
15 use Drupal\Core\Field\FieldStorageDefinitionInterface;
16 use Drupal\Core\Form\FormStateInterface;
17 use Drupal\Core\StringTranslation\TranslatableMarkup;
18 use Drupal\Core\TypedData\DataDefinition;
21 {% block class_declaration %}
23 * Plugin implementation of the '{{ plugin_id }}' field type.
26 * id = "{{ plugin_id }}",
27 * label = @Translation("{{ label }}"),
28 * description = @Translation("{{ description }}"){% if default_widget or default_formatter %},
30 {% if default_widget %}
31 * default_widget = "{{ default_widget }}"{% if default_widget and default_formatter %},
35 {% if default_formatter %}
36 * default_formatter = "{{ default_formatter }}"
41 class {{ class_name }} extends FieldItemBase {% endblock %}
42 {% block class_methods %}
46 public static function defaultStorageSettings() {
50 'case_sensitive' => FALSE,
51 ] + parent::defaultStorageSettings();
57 public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
58 // Prevent early t() calls by using the TranslatableMarkup.
59 $properties['value'] = DataDefinition::create('string')
60 ->setLabel(new TranslatableMarkup('Text value'))
61 ->setSetting('case_sensitive', $field_definition->getSetting('case_sensitive'))
70 public static function schema(FieldStorageDefinitionInterface $field_definition) {
74 'type' => $field_definition->getSetting('is_ascii') === TRUE ? 'varchar_ascii' : 'varchar',
75 'length' => (int) $field_definition->getSetting('max_length'),
76 'binary' => $field_definition->getSetting('case_sensitive'),
87 public function getConstraints() {
88 $constraints = parent::getConstraints();
90 if ($max_length = $this->getSetting('max_length')) {
91 $constraint_manager = \Drupal::typedDataManager()->getValidationConstraintManager();
92 $constraints[] = $constraint_manager->create('ComplexData', [
96 'maxMessage' => t('%name: may not be longer than @max characters.', [
97 '%name' => $this->getFieldDefinition()->getLabel(),
111 public static function generateSampleValue(FieldDefinitionInterface $field_definition) {
112 $random = new Random();
113 $values['value'] = $random->word(mt_rand(1, $field_definition->getSetting('max_length')));
120 public function storageSettingsForm(array &$form, FormStateInterface $form_state, $has_data) {
123 $elements['max_length'] = [
125 '#title' => t('Maximum length'),
126 '#default_value' => $this->getSetting('max_length'),
128 '#description' => t('The maximum length of the field in characters.'),
130 '#disabled' => $has_data,
139 public function isEmpty() {
140 $value = $this->get('value')->getValue();
141 return $value === NULL || $value === '';