function EntityReferenceItem::getConstraints

Overrides TypedData::getConstraints

File

core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php, line 160

Class

EntityReferenceItem

Defines the 'entity_reference' entity field type.

Namespace

Code

public function getConstraints() {
    $constraints = parent::getConstraints();
    // Remove the 'AllowedValuesConstraint' validation constraint because entity
    // reference fields already use the 'ValidReference' constraint.
    foreach ($constraints as $key => $constraint) {
        if ($constraint instanceof AllowedValuesConstraint) {
            unset($constraints[$key]);
        }
    }
    return $constraints;
}