EntityFieldUniqueValues

Checks if an entity field has duplicate values.

Full name: \Drupal\helper\Plugin\Validation\Constraint\EntityFieldUniqueValues
Parent class: \Drupal\helper\Plugin\Validation\Constraint\FieldListUniqueValues

Properties

The field name to validate.

public string $field_name

This is a constraint option set by name, so it keeps its snake_case name for backwards compatibility with existing configuration.

{@inheritdoc}

public getDefaultOption(): ?string

{@inheritdoc}

public getRequiredOptions(): array