Question

我对Gorm有一个（对我来说很奇怪）问题。

我们必须清理项目中的一些数据，除了一件事之外的一切都可以正常工作。

这是我们的域类的摘录

class Person {
    ...
}

class Grade {
   ...
   static hasMany = [speaker: Person]
}

现在我正在搜索要删除的特定人群（重复）。找到它们之后，我需要将待删除人员的所有实例切换到剩余的人。这是该逻辑的摘录：

def personDelete = Person.get(it.get("bhlneuPerson"))
def personBase = Person.get(it.get("bhlPerson"))

...

def grades = Grade.withCriteria {
    speaker {
        eq("id", personDelete.id)
    }
}
grades.each {
    it.removeFromSpeaker(personDelete)
    it.addToSpeaker(personBase)
    it.save(failOnError: true)
}

...

之后我收集了我在列表中找到的所有id并迭代它以删除相应的人

people.each {
    def pers = Person.get(it)
    if(pers)
        pers.delete()
}

但是我收到以下错误：

| Error 2015-09-01 15:02:36,256 [http-bio-8080-exec-15] ERROR errors.GrailsExceptionResolver  - ObjectDeletedException occurred when processing request: [GET] /migration/testBHLNEU
deleted object would be re-saved by cascade (remove deleted object from associations): [Person#3970]. Stacktrace follows:
Message: deleted object would be re-saved by cascade (remove deleted object from associations): [Person#3970]; nested exception is org.hibernate.ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations): [Person#3970]
Line | Method
->>  200 | doFilter  in grails.plugin.cache.web.filter.PageFragmentCachingFilter
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
|     63 | doFilter  in grails.plugin.cache.web.filter.AbstractFilter
|     53 | doFilter  in grails.plugin.springsecurity.web.filter.GrailsAnonymousAuthenticationFilter
|     49 | doFilter  in grails.plugin.springsecurity.web.authentication.RequestHolderAuthenticationFilter
|     82 | doFilter  in grails.plugin.springsecurity.web.authentication.logout.MutableLogoutFilter
|   1145 | runWorker in java.util.concurrent.ThreadPoolExecutor
|    615 | run . . . in java.util.concurrent.ThreadPoolExecutor$Worker
^    745 | run       in java.lang.Thread
Caused by ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations): [Person#3970]

执行后，仍有一个成绩对象与旧人的身份（＃3970），但也是一个新的成绩对象，在上述执行过程中被添加。

我在逻辑中的错在哪里？：）

提前致谢！

Gorm：removeFrom后无法删除

0 个答案: