user_id:
        type: integer(4)


...snip snip...

  relations:
    sfGuardUser:
        class: sfGuardUser
        local: user_id
        foreign: id
        alias: user

SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (`lucid_cms`.`review`, CONSTRAINT `review_user_id_sf_guard_user_id` FOREIGN KEY (`user_id`) REFERENCES `sf_guard_user` (`id`))

		$user = $this->getUser();
		if (!$user->getProfile()->isActivated()) {
			$user->notActivatedError($user->getGuardUser());
			if ($this->forum_id) {
				$this->redirect('forumforum', Doctrine::getTable('forumforum')->findOneBy('id', $this->forum_id));
			}
			else {
				$this->redirect('forumtopic', Doctrine::getTable('forumtopic')->findOneBy('id', $this->topic_id));
			}
		}

$this->setWidgets(array(
      'id'            => new sfWidgetFormInputHidden(),
      'user_id'       => new sfWidgetFormDoctrineChoice(array('model' => $this->getRelatedModelName('sfGuardUser'), 'add_empty' => false)),
      'notif_message' => new sfWidgetFormTextarea(),
...