我有以下领域: * Many Organization have Many PartnerCategory. * @ORM\ManyToMany(targetEntity="PartnerCategory", inversedBy="organizations") * joinColumns={@ORM\JoinColumn(name="organization_id", referen
我试图使用唯一性约束来管理HABTM关系。has_and_belongs_to_many :tokens# we are not doing anything with tokens here:这就好像关联会记住它是“脏的”或未保存的,然后尝试保存之前没有保存的记录,最后抛出异常。有什么想法可以看看这个关联是否真