如何在Squeryl中执行删除操作 [英] How to do something on delete in Squeryl

问题描述

我有A and B(a_id:Long)个实体.

B取决于A.因此，我设置了constrainReference(onDelete cascade).一切正常.

B depends on A. So I've set constrainReference(onDelete cascade). Everything works fine.

但是当我删除A时，我想根据B释放一些资源.可以以某种方式拦截B的onDelete()并执行操作，然后使用Squeryl方式还是我必须手动进行?

But when I delete A I want to free some resources depending on B. Can somehow intercept B's onDelete() and perform operations then with a Squeryl way or I have to do it manually?

推荐答案

在您的模式中尝试:

override def callbacks = Seq(
        afterDelete(table) call (record => logger.debug("afterDelete")))

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