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我有一个包含车辆列表的域（所有者）在我的服务类方法中，我试图添加一些车辆并从所有者的车辆列表中删除一些车辆。

public Owner edit(Long ownerId) {

    Owner owner

    Owner.withTransaction { status ->
        if (ownerId) {
            def vehicle
            owner = Owner.get(ownerId)
            if (owner) {
                // add vehicles
                addVechicleList.each {
                    vehicle = Vehicle.get(new Long(it))
                    if (vehicle) {
                        owner.addToVehicleList(vehicle)
                    }
                }

                // remove vehicles
                removeVehicleList.each {
                    vehicle = Vehicle.get(new Long(it))
                    if (vehicle) {
                        owner.removeFromVehicleList(vehicle)
                    }
                }

                owner?.save(flush: true)

            }
    } // end transaction
    Owner newOwner = Owner.get(ownerId)
    return newOwner // this has the newly added vehicle but not the removed vehicle.
}

领域类

Owner.groovy

class Owner {
    String ownerName
    Date dateCreated
    Date lastUpdated

    static hasMany = [vehicleList: Vehicle]

    static constraints = {
    // some constraints
    }

}

Vehicle.groovy

class Vehicle {
    String vehicleName
    Owner owner
    Date dateCreated
    Date lastUpdated

    static belongsTo = Owner
    static hasMany = [owners: Owner]

    static constraints = {
        // some constraints
    }
}

我保存了数据，我尝试使用flush和不使用flush，它包含已删除的对象。但是，如果我从 UI 刷新或发出新请求，只需获取所有者详细信息，然后它就会检索正确的值。保存数据后，我尝试通过放置断点来查看它的数据库。db 得到了更新，但 get() 方法没有检索到正确的值。我使用的是 grails 2.2。我在代码中遗漏了什么吗？为什么它不采用更新的值？

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1 回答 1

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尝试将Owner班级名称更改为其他任何名称，Event几天前我的班级也遇到了同样的问题:)

于 2013-06-11T19:30:12.097 回答