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有我的問題,我需要顯示所有沒有關聯客戶端的聯繫人。 我DQL是:因爲我可以找到沒有關聯客戶端的聯繫人嗎?
SELECT c FROM ComercialBundle:Contacto c WHERE c.cliente IS NULL
我得到了一個錯誤:
A single-valued association path expression to an inverse side is not supported in DQL queries. Use an explicit join instead.
實體assoc命令:
Contacto.php
/**
* @ORM\OneToOne(targetEntity="CeiferIT\ComercialBundle\Entity\Cliente", mappedBy="contacto", cascade={"persist", "remove"})
**/
private $cliente;
Cliente.php
/**
* @ORM\OneToOne(targetEntity="CeiferIT\ComercialBundle\Entity\Contacto", inversedBy="cliente", cascade={"persist", "remove"})
* @ORM\JoinColumn(name="contacto_id", referencedColumnName="id")
**/
private $contacto;
我應該如何創建我的DQL?
謝謝!
請在查詢之前查看文檔和現有問題。 http://doctrine-orm.readthedocs.org/projects/doctrine-orm/en/latest/reference/dql-doctrine-query-language.html#joins – chalasr
我已閱讀文檔,但我還沒有找到答案我的問題,所以我打開這個問題,謝謝你的文檔 –