class UniqueFieldConstraint

Checks if an entity field has a unique value.

Attributes

#[Constraint(id: 'UniqueField', label: new TranslatableMarkup('Unique field constraint', [], [ 'context' => 'Validation', ]))]

Hierarchy

  • class \Drupal\Core\Validation\Plugin\Validation\Constraint\UniqueFieldConstraint extends \Symfony\Component\Validator\Constraint

Expanded class hierarchy of UniqueFieldConstraint

4 files declare their use of UniqueFieldConstraint
FileUriUnique.php in core/modules/file/src/Plugin/Validation/Constraint/FileUriUnique.php
StringItemTest.php in core/tests/Drupal/Tests/Core/Field/StringItemTest.php
UserMailUnique.php in core/modules/user/src/Plugin/Validation/Constraint/UserMailUnique.php
UserNameUnique.php in core/modules/user/src/Plugin/Validation/Constraint/UserNameUnique.php

File

View on git.drupalcode.org

core/lib/Drupal/Core/Validation/Plugin/Validation/Constraint/UniqueFieldConstraint.php, line 12

Namespace

Drupal\Core\Validation\Plugin\Validation\Constraint
View source 
class UniqueFieldConstraint extends SymfonyConstraint {
  public $message = 'A @entity_type with @field_name %value already exists.';
  
  /**
   * This constraint is case-insensitive by default.
   *
   * For example "FOO" and "foo" would be considered as equivalent, and
   * validation of the constraint would fail.
   *
   * @var bool
   */
  public $caseSensitive = FALSE;
  
  /**
   * Returns the name of the class that validates this constraint.
   *
   * @return string
   */
  public function validatedBy() {
    return '\\Drupal\\Core\\Validation\\Plugin\\Validation\\Constraint\\UniqueFieldValueValidator';
  }

}

Members

Title Modifiers Object type Summary Overrides
UniqueFieldConstraint::$caseSensitive public property This constraint is case-insensitive by default. 1
UniqueFieldConstraint::$message public property 3
UniqueFieldConstraint::validatedBy public function Returns the name of the class that validates this constraint. 1

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