doctrine-orm - 一对多/多对一模式异常

Question

我尝试使用 Doctrine2 为我的 Symfony2 应用程序构建多对一关系。我收到此错误，但不知道为什么:

app/console doctrine:schema:create
PHP Deprecated:  Comments starting with '#' are deprecated in /etc/php5/cli/conf.d/mcrypt.ini on line 1 in Unknown on line 0
ATTENTION: This operation should not be executed in an production enviroment.


  [Doctrine\DBAL\Schema\SchemaException]
  There is no column with name 'activityGroup' on table 'activity'.  

这是两个类: http://pastebin.com/Ev7Rwgxr

我认为 Activity 类实际上有 activityGroup ......那么这个错误试图说明什么？

谢谢!

Answer 1

我知道了...

uniqueconstraints 期望真正的数据库字段名称是 activityGroup_id而不仅仅是 activityGroup .

可以通过提供 JoinColumn 来确定在数据库中调用的字段。

所以，一个聪明的解决方案是:

    /**
     * @ORM\Entity
     * @ORM\Table(name="activity",
     *     uniqueConstraints={
     *         @ORM\UniqueConstraint(name="name_idx", columns={"activity_group_id", "name"}),
     *         @ORM\UniqueConstraint(name="sort_idx", columns={"activity_group_id", "sort_id"})
     *     }
     * )
     */
    class Activity
    {
        // ...

        /**
         * @ORM\ManyToOne(targetEntity="SeduceMe\SiteBundle\Entity\ActivityGroup", inversedBy="activities")
         * @ORM\JoinColumn(name="activity_group_id", referencedColumnName="id")
         */

        protected $activityGroup;
        //...
    }