data-binding - Grails 多个数据绑定(bind)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 没有。我想不明白。任何帮助将不胜感激。

Answer 1

您可能有验证错误。尝试调用validate()在上面并检查错误。或者，尝试使用 carroMovelInstance.save(failOnError: true) 保存它如果它不验证，你会得到一个异常(exception)。