Doctrine DQL条件查询

Question

我正在尝试使用Doctrine的查询构建器构建动态查询.假设我也想在下面选择一个结束时间(只有输入一个).我如何有条件地将这个添加到声明中？

    $query = $this->getEntityManager()->createQueryBuilder()
        ->select('m')
        ->from($this->getEntityName(), 'm')
        ->where("m.start > '" . date('Y-m-d H:i:s', strtotime($start)) . "'")
        ->getQuery();

Answer 1

我会做这样的事情:

// first, create the query builder
$qb = $this->getEntityManager()->createQueryBuilder()
    ->select('m')
    ->from($this->getEntityName(), 'm')
;

// add the default condition
$conditions = array(
    $qb->expr()->gt('m.start', date('Y-m-d H:i:s', strtotime($start)));
);

// put your condition here
if (isset($end)) {
    $conditions[] = $qb->expr()->lt('m.end', date('Y-m-d H:i:s', strtotime($end)));
}

// convert the conditions to an AND clause
$conditions = call_user_func_array(array($qb, 'andX'), $conditions);

// add the WHERE clause
$qb->where($conditions);

// get the query
$query = $qb->getQuery();