我有以下域类:

class AccountSupplier implements Serializable {

    static mapping = {
       table 'MY_TABLE'
       version false

       accountReference /*indexColumn: 'ACNTID', */ column:'REFACNTID'
       supplierReference /* indexColumn:'SUPID' ,*/ column:'REFSUPID'

       id composite:['accountReference', 'supplierReference']
    }

   Account accountReference
   Supplier supplierReference
}

最佳答案

没有实际的ID。这并不是复合ID的工作原理。您需要在您的类上提供一个方法以允许删除(以及其他操作)

static boolean remove(Account accountReference, Supplier supplierReference, boolean flush = false) {
  AccountSupplier instance = AccountSupplier.findByAccountAndSupplier(accountReference, supplierReference)
  instance ? instance.delete(flush: flush) : false
}

https://stackoverflow.com/questions/6692026/