Grails多个数据绑定域类

Question

  Class Carro {
    String name
    String marca
    String matricula

    } 

    Class CarroMovel{

    String pro1
    String prop2
    String prop3

    Carro carro

    static hasMany = [ carros: Carro]

    }

---

 def save2 = {

                def carroInstance = new Carro()
                def carroMovelInstance = new CarroMovel()

                carroInstance.name = params.name
                carroInstance.marca = params.marca
                carroInstance.matricula = params.matricula

                carroMovelInstance.prop1 = params.carroMovel.prop1
                carroMovelInstance.prop2 = params.carroMovel.prop2
                carroMovelInstance.prop3 = params.carroMovel.prop3

                carroInstance.save()
                carroMovelInstance.carro = carroInstance
                carroMovelInstance.save()                 

            }

CarroInstance正在保存，但carroMovelInstance不是。我想不明白。任何帮助都会被贬低。

Answer 1

您可能遇到验证错误。尝试在其上调用validate()并检查错误。或者，尝试使用carroMovelInstance.save(failOnError: true)保存它，如果它不验证，您将收到异常。