symfony2中mysql和mongodb的增删改查总结

预定义文中用到的变量：

$em = $this->getDoctrine()->getEntityManager();

$repository = $em->getRepository(‘AcmeStoreBundle:Product’)；

1.常用的查询

$repository->find($id); //获取的是一条数据

$repository->findAll();  //获取的是数组

$repository->findOneByName(‘Foo’);//获取的是一条数据

$repository->findBy(array(‘name’ => ‘foo’，‘price’ => 19.99),array(‘price’ => ‘ASC’));//获取的是一个数组

2、DQL

例题1.$query = $em->createQuery(
‘SELECT p FROM AcmeStoreBundle:Product p WHERE p.price > :price ORDER BY p.price ASC’
)->setParameter(‘price’, ’19.99′);

$products = $query->getResult();

注：（1） 获得一个结果可以用：$product = $query->getSingleResult();

（2） setParameter(‘price’, ’19.99′);运用这个外部方法来设置查询语句中的 “占位符”price 的值，而不是直接将数值写入查询语句中，有利于防止SQL注入攻击，你也可以设置多个参数：

->setParameters(array(
‘price’ => ’19.99′,
‘name’ => ‘Foo’,
))

例题2：

$query = $em->createQuery('SELECT min(bp.price) as minPrice FROM AppBundle:BookPackage bp WHERE bp.bookId=:bookId and bp.status<>2');
$query->setParameter('bookId', $bookId);
return $query->getSingleScalarResult();

例题3、

$goodsIdListString = $this->_getGoodsIdList($materialList);
$em = $this->getDoctrine()->getManager();
$query = $em->createQuery('SELECT p FROM AppBundle:Photo p WHERE p.subjectId in ('.$goodsIdListString.') and p.type=1 and p.status=0 ORDER BY p.createTime DESC');
$photoList = $query->getResult();

例题4、

if ($status == InventoryOrder::STATUS_SUBMITTED) {
    $index = 'i.submitTime';
} else if ($status == InventoryOrder::STATUS_UNSUBMITTED) {
    $index = 'i.createTime';
} else if (empty($status)) {
    $index = 'i.createTime';
} else {
    throw new \Exception('时间格式不正确', BaseException::ERROR_CODE_ILLEGAL_PARAMETER);
}

$sql = 'SELECT i FROM AppBundle:InventoryOrder i WHERE ';
if(empty($startDate)) {
    throw new \Exception('起始时间不为空', BaseException::ERROR_CODE_ILLEGAL_PARAMETER);
}
if (empty($endDate)) {
    $endDate = $startDate;
}
$startTimestamp = strtotime($startDate);
$endTimestamp = strtotime($endDate);

if ($startTimestamp > $endTimestamp) {
    throw new \Exception('时间参数错误', BaseException::ERROR_CODE_ILLEGAL_PARAMETER);
}
$sql .= $index;
$sql .= ' BETWEEN :startDate AND :endDate ';
$start = date('Y-m-d 00:00:00', $startTimestamp);
$end = date('Y-m-d 23:59:59', $endTimestamp);
$params['endDate'] = $end;
$params['startDate'] = $start;
if (!empty($status)) {
    $sql .= ' AND i.status = :status';
    $params['status'] = $status;
}
$sql .=' ORDER By i.createTime DESC';

$query = $this->entityManager->createQuery($sql);
$orderList = $query->setParameters($params)->getResult();

3.Query Builder查询

例题1、

$query = $repository->createQueryBuilder(‘p’)
->where(‘p.price > :price’)
->setParameter(‘price’, ’19.99′)
->orderBy(‘p.price’, ‘ASC’)
->getQuery();
$products = $query->getResult();
可以在以下链接中获取更多的关于查询生成器的内

例题2、

这其实是一个分页的查询

$repository = $this->getDoctrine()
    ->getRepository('AppBundle:Goods');
$query = $repository->createQueryBuilder('p')
    ->where('p.name like :name')
    ->andwhere('p.status = 0')
    ->setParameter('name', "$fuzzyGoodsInfo")
    ->orderBy('p.sales', 'DESC')
    ->setFirstResult($pageSize * $page)  
    ->setMaxResults($pageSize)  //相当于limit  取多少条数据 setLimit(100);
    ->getQuery();
$goodsList = $query->getResult();

例题3.使用queryBuilder方法：查询一个数组结果：materialId等于$materialId，并且action在$actionList数组内的。并且按照时间排序

$queryBuilder = $this->getEntityManager()->createQueryBuilder();
$resultList = $queryBuilder->select('s')
    ->from('AppBundle:StockHistory', 's')
    ->Where('s.materialId = :materialId')
    ->andWhere($queryBuilder->expr()->in('s.action', $actionList))
    ->orderBy('s.createTime', 'DESC')
    ->setParameter('materialId', $materialId)
    ->getQuery()->getResult();

4.SQL的更新

$query = $em->createQuery("UPDATE AppBundle:ReceiverAddress u SET u.defaultFlag = 0 WHERE u.userId = :userId")->setParameter('userId',$userId);
$result = $query->getResult();

二、mongodb的操作

 //删除

     // 删除掉当前goods下的所有Material
        $dm = $this->get('doctrine_mongodb')->getManager();
        $dm->createQueryBuilder('AppBundle:Material')
            ->update()
            ->multiple(true)
            ->field('status')->set(2)
            ->field('goodsId')->equals($goodsId)
            ->getQuery()
            ->execute();


        $dm->flush();

 ->multiple(true)这句话的意思，可以删除所有goodsId==$goodsId的记录，不加的话，就只删除第一条数据。
//查询
1.根据id直接查询一条记录
$dm = $this->get('doctrine_mongodb')->getManager();
$material = $dm->getRepository('AppBundle:Material')->find(new \MongoId($materialId));
2.往mongodb表中插入一条数据
$product = new Product();
    $product->setName('A Foo Bar');
    $product->setPrice('19.99');

    $dm = $this->get('doctrine_mongodb')->getManager();
    $dm->persist($product);
    $dm->flush();
//定义量
$repository = $this->get('doctrine_mongodb')    ->getManager()    ->getRepository('AcmeStoreBundle:Product');
//查询语句
1.根据$id查询数据
$product = $repository->find($id);$product = $repository->findOneById($id);$product = $repository->findOneByName('foo');// find *all* products$products = $repository->findAll();$products = $repository->findByPrice(19.99);

$product = $repository->findOneBy(array('name' => 'foo', 'price' => 19.99));

//多个条件查询
$products = $repository->findBy( array(

  'name' => 'foo',

  'status' => 0,

 ), array('price', 'ASC') );

//查询一条语句后，更改某个字段的值

$dm = $this->get('doctrine_mongodb')->getManager(); $product = $dm->getRepository('AcmeStoreBundle:Product')->find($id); if (!$product) { throw $this->createNotFoundException('No product found for id '.$id); } $product->setName('New product name!'); $dm->flush();

二、Query Builder查询

$products = $this->get('doctrine_mongodb') ->getManager() ->createQueryBuilder('AcmeStoreBundle:Product') ->field('name')->equals('foo') ->limit(10) ->sort('price', 'ASC') ->getQuery() ->execute()