public function DoubleField::getConstraints in Double Field 8.3

Same name and namespace in other branches

1. 4.x src/Plugin/Field/FieldType/DoubleField.php \Drupal\double_field\Plugin\Field\FieldType\DoubleField::getConstraints()

@TODO: Find a way to disable constraints for default field values.

Overrides TypedData::getConstraints

File

src/Plugin/Field/FieldType/DoubleField.php, line 292

Class

DoubleField

Plugin implementation of the 'double_field' field type.

Namespace

Drupal\double_field\Plugin\Field\FieldType

Code

public function getConstraints() {
  $constraint_manager = \Drupal::typedDataManager()
    ->getValidationConstraintManager();
  $constraints = parent::getConstraints();
  $settings = $this
    ->getSettings();
  $subconstrains = [];
  foreach ([
    'first',
    'second',
  ] as $subfield) {
    $subfield_type = $settings['storage'][$subfield]['type'];
    $is_list = $settings[$subfield]['list'] && static::isListAllowed($subfield_type);
    if ($is_list && $settings[$subfield]['allowed_values']) {
      $allowed_values = array_keys($settings[$subfield]['allowed_values']);
      $subconstrains[$subfield]['AllowedValues'] = $allowed_values;
    }
    if ($subfield_type == 'string' || $subfield_type == 'telephone') {
      $subconstrains[$subfield]['Length']['max'] = $settings['storage'][$subfield]['maxlength'];
    }

    // Allowed values take precedence over the range constraints.
    $numeric_types = [
      'integer',
      'float',
      'numeric',
    ];
    if (!$settings[$subfield]['list'] && in_array($subfield_type, $numeric_types)) {
      if (is_numeric($settings[$subfield]['min'])) {
        $subconstrains[$subfield]['Range']['min'] = $settings[$subfield]['min'];
      }
      if (is_numeric($settings[$subfield]['max'])) {
        $subconstrains[$subfield]['Range']['max'] = $settings[$subfield]['max'];
      }
    }
    if ($subfield_type == 'email') {
      $subconstrains[$subfield]['Length']['max'] = Email::EMAIL_MAX_LENGTH;
    }
    if ($settings[$subfield]['required']) {

      // NotBlank validator is not suitable for booleans because it does not
      // recognize '0' as an empty value.
      if ($subfield_type == 'boolean') {
        $subconstrains[$subfield]['NotEqualTo']['value'] = 0;
        $subconstrains[$subfield]['NotEqualTo']['message'] = $this
          ->t('This value should not be blank.');
      }
      else {
        $subconstrains[$subfield]['NotBlank'] = [];
      }
    }
  }
  $constraints[] = $constraint_manager
    ->create('ComplexData', $subconstrains);
  return $constraints;
}