[英]Doctrine DQL, using the IN statement with entities
Is it in Doctrine possible to use the IN statement and pass a list of entities as parameter for the IN statement? 在Doctrine中,是否可以使用IN语句并将实体列表作为IN语句的参数传递?
For example, with with the following relation: 例如,具有以下关系:
/**
* @var \Doctrine\Common\Collections\Collection
*
* @ORM\OneToMany(targetEntity="Calendar", mappedBy="education", cascade={"persist"})
*/
private $calendar;
I would like to do a query like: 我想做一个查询:
SELECT p FROM Education p WHERE p.calendar IN (:calendar)
An as :calendar parameter an array of entities. as:calendar参数是实体数组。
$query->setParameter('calendar', array($singleEntity,$singleEntity2));
But that gives the following error: 但这会产生以下错误:
near 'calendar IN (:calendar)': Error: Invalid PathExpression. StateFieldPathExpression or SingleValuedAssociationField
You can use full entities for the IN statement and DQL will be like 您可以对IN语句使用完整的实体,DQL就像
$query->select('p')
->from('Education', 'p')
->where($query->expr()->in('p.calendar', ':values'))
->setParameter('values', array($singleEntity,$singleEntity2));
I have used this before quite a few times if I recall correctly and it always worked. 如果我没记错的话,我已经使用过好几次了,而且它一直有效。 I usually use the JOIN and an attribute like Cerad suggested but this should work too.
我通常使用JOIN和建议的Cerad这样的属性,但这也应该起作用。
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