EntityIsNew.php

<?php

namespace Drupal\rules\Plugin\Condition;

use Drupal\Core\Entity\EntityInterface;
use Drupal\rules\Core\RulesConditionBase;

/**
 * Provides an 'Entity is new' condition.
 *
 * @todo Add access callback information from Drupal 7?
 *
 * @Condition(
 *   id = "rules_entity_is_new",
 *   label = @Translation("Entity is new"),
 *   category = @Translation("Entity"),
 *   context_definitions = {
 *     "entity" = @ContextDefinition("entity",
 *       label = @Translation("Entity"),
 *       description = @Translation("Specifies the entity for which to evaluate the condition."),
 *       assignment_restriction = "selector"
 *     ),
 *   }
 * )
 */
class EntityIsNew extends RulesConditionBase {
    
    /**
     * Check if the provided entity is new.
     *
     * @param \Drupal\Core\Entity\EntityInterface $entity
     *   The entity to check.
     *
     * @return bool
     *   TRUE if the provided entity is new.
     */
    protected function doEvaluate(EntityInterface $entity) {
        return $entity->isNew();
    }

}