Android 将新对象添加到域中的关系中

我的大脑有问题：(

问题是当我尝试将新对象添加到RealmList中时。该对象已插入，但未与关系链接

现在，我的数据库有多个关系：

用户1-->M行程1-->M车辆1-->M

然后：

车辆1-->米车辆信息

车辆信息1-->米温度

当我尝试将一个新对象插入到Temperature类中时，问题就出现了

我的班级：

    @RealmClass
    public class Vehicle extends RealmObject
    {
        private String  state;                  //R: Reservado | P: Listo para embarcar | E: Embarcado | P1: Pdte. confirmar medidas | P2: Tª no válida | R1: No embarca
        private String  locata       = "";
        private String  customer     = "";
        private String  customerCode = "";
        private String  originPort   = "";      //Origin port
        private String  destinyPort  = "";      //Destiny port
        private int     fp;                     //Method pay (0 = CASH | 1 = CREDIT)

        //Relationship
        private Trip trip;                              //Inverse
        private RealmList<VehicleInfo>  vehicleInfo = new RealmList<>();    //One-to-many
        private RealmList<Observation> observations = new RealmList<>();;    //One-to-many
.....
}

@RealmClass
public class VehicleInfo extends RealmObject {

    private String  sv;                  //Vehicle type
    private String  licensePlate  = "";  //License
    private String  seal          = "";  //Seal
    private String  temperature   = "";  //Temperature control
    private String  iv            = "";  //Ida/Vuelta
    private String  commodityCode = "";
    private int     tara          = 0;   //TARA
    private int     packages      = 0;   //Bultos
    private int     weight        = 0;
    private double  length        = 0.0; //Meters
    private boolean flagFT;              //Flag Technical data
    private boolean flagDua;
    private boolean flagManifest;
    private boolean flagTransport;
    private boolean flagDangerCommodity;

    //Relationship
    private RealmList<Temperature> temperatures = new RealmList<>();   //One-to-many
....
}

Temperature temp = new Temperature();
temp.setDate(appCommon.getCurrentTimeOrDate("DATE"));
temp.setTime(appCommon.getCurrentTimeOrDate("TIME"));
temp.setValue(Double.parseDouble(etTemp.getText().toString()));

VehicleInfoPersistence.updateVehicleInfoTemperature(realm, vehicle.getLocata(), selectedUnitPosition, temp);
updateRecycler(tempRecyclerAdapter, temp);

public static VehicleInfo findVehicleInfoFromLocata(Realm realm, String locata, int position) {
        RealmQuery<Vehicle> query = realm.where(Vehicle.class).equalTo("locata", locata);
        Vehicle realmVehicle = query.findFirst();

        return realmVehicle.getVehicleInfo().get(position);
    }

public static void updateVehicleInfoTemperature(Realm realm, String locata, int position, Temperature temperature) {

    Vehicle vehicle = VehiclePersistence.findVehicleFromLocata(realm, locata);

realm.beginTransaction();
Temperature realmTemp = realm.copyToRealm(temperature);
 vehicle.getVehicleInfo().get(position).getTemperatures().add(realmTemp);    
realm.commitTransaction();

车辆：

    @RealmClass
    public class Vehicle extends RealmObject
    {
        private String  state;                  //R: Reservado | P: Listo para embarcar | E: Embarcado | P1: Pdte. confirmar medidas | P2: Tª no válida | R1: No embarca
        private String  locata       = "";
        private String  customer     = "";
        private String  customerCode = "";
        private String  originPort   = "";      //Origin port
        private String  destinyPort  = "";      //Destiny port
        private int     fp;                     //Method pay (0 = CASH | 1 = CREDIT)

        //Relationship
        private Trip trip;                              //Inverse
        private RealmList<VehicleInfo>  vehicleInfo = new RealmList<>();    //One-to-many
        private RealmList<Observation> observations = new RealmList<>();;    //One-to-many
.....
}

@RealmClass
public class VehicleInfo extends RealmObject {

    private String  sv;                  //Vehicle type
    private String  licensePlate  = "";  //License
    private String  seal          = "";  //Seal
    private String  temperature   = "";  //Temperature control
    private String  iv            = "";  //Ida/Vuelta
    private String  commodityCode = "";
    private int     tara          = 0;   //TARA
    private int     packages      = 0;   //Bultos
    private int     weight        = 0;
    private double  length        = 0.0; //Meters
    private boolean flagFT;              //Flag Technical data
    private boolean flagDua;
    private boolean flagManifest;
    private boolean flagTransport;
    private boolean flagDangerCommodity;

    //Relationship
    private RealmList<Temperature> temperatures = new RealmList<>();   //One-to-many
....
}

Temperature temp = new Temperature();
temp.setDate(appCommon.getCurrentTimeOrDate("DATE"));
temp.setTime(appCommon.getCurrentTimeOrDate("TIME"));
temp.setValue(Double.parseDouble(etTemp.getText().toString()));

VehicleInfoPersistence.updateVehicleInfoTemperature(realm, vehicle.getLocata(), selectedUnitPosition, temp);
updateRecycler(tempRecyclerAdapter, temp);

public static VehicleInfo findVehicleInfoFromLocata(Realm realm, String locata, int position) {
        RealmQuery<Vehicle> query = realm.where(Vehicle.class).equalTo("locata", locata);
        Vehicle realmVehicle = query.findFirst();

        return realmVehicle.getVehicleInfo().get(position);
    }

public static void updateVehicleInfoTemperature(Realm realm, String locata, int position, Temperature temperature) {

    Vehicle vehicle = VehiclePersistence.findVehicleFromLocata(realm, locata);

realm.beginTransaction();
Temperature realmTemp = realm.copyToRealm(temperature);
 vehicle.getVehicleInfo().get(position).getTemperatures().add(realmTemp);    
realm.commitTransaction();

在域中查找并持久化的方法：

    @RealmClass
    public class Vehicle extends RealmObject
    {
        private String  state;                  //R: Reservado | P: Listo para embarcar | E: Embarcado | P1: Pdte. confirmar medidas | P2: Tª no válida | R1: No embarca
        private String  locata       = "";
        private String  customer     = "";
        private String  customerCode = "";
        private String  originPort   = "";      //Origin port
        private String  destinyPort  = "";      //Destiny port
        private int     fp;                     //Method pay (0 = CASH | 1 = CREDIT)

        //Relationship
        private Trip trip;                              //Inverse
        private RealmList<VehicleInfo>  vehicleInfo = new RealmList<>();    //One-to-many
        private RealmList<Observation> observations = new RealmList<>();;    //One-to-many
.....
}

@RealmClass
public class VehicleInfo extends RealmObject {

    private String  sv;                  //Vehicle type
    private String  licensePlate  = "";  //License
    private String  seal          = "";  //Seal
    private String  temperature   = "";  //Temperature control
    private String  iv            = "";  //Ida/Vuelta
    private String  commodityCode = "";
    private int     tara          = 0;   //TARA
    private int     packages      = 0;   //Bultos
    private int     weight        = 0;
    private double  length        = 0.0; //Meters
    private boolean flagFT;              //Flag Technical data
    private boolean flagDua;
    private boolean flagManifest;
    private boolean flagTransport;
    private boolean flagDangerCommodity;

    //Relationship
    private RealmList<Temperature> temperatures = new RealmList<>();   //One-to-many
....
}

Temperature temp = new Temperature();
temp.setDate(appCommon.getCurrentTimeOrDate("DATE"));
temp.setTime(appCommon.getCurrentTimeOrDate("TIME"));
temp.setValue(Double.parseDouble(etTemp.getText().toString()));

VehicleInfoPersistence.updateVehicleInfoTemperature(realm, vehicle.getLocata(), selectedUnitPosition, temp);
updateRecycler(tempRecyclerAdapter, temp);

public static VehicleInfo findVehicleInfoFromLocata(Realm realm, String locata, int position) {
        RealmQuery<Vehicle> query = realm.where(Vehicle.class).equalTo("locata", locata);
        Vehicle realmVehicle = query.findFirst();

        return realmVehicle.getVehicleInfo().get(position);
    }

public static void updateVehicleInfoTemperature(Realm realm, String locata, int position, Temperature temperature) {

    Vehicle vehicle = VehiclePersistence.findVehicleFromLocata(realm, locata);

realm.beginTransaction();
Temperature realmTemp = realm.copyToRealm(temperature);
 vehicle.getVehicleInfo().get(position).getTemperatures().add(realmTemp);    
realm.commitTransaction();

公共静态车辆信息findVehicleInfoFromLocata（领域领域，字符串位置，int位置）{
RealmQuery query=realm.where（Vehicle.class）.equalTo（“locata”，locata）；
Vehicle realmVehicle=query.findFirst（）；
返回realmVehicle.getVehicleInfo（）.get（位置）；
}
公共静态void updateHicleinfotemperature（领域领域、字符串位置、int位置、温度）{
Vehicle Vehicle=VehiclePersistence.findVehicleFromLocata（领域，locata）；
realm.beginTransaction（）；
温度realmTemp=realm.copyToRealm（温度）；
vehicle.getVehicleInfo（）.get（位置）.getTemperatures（）.add（realmTemp）；
realm.commitTransaction（）；

}

正如我所说，对象是在数据库中创建的，但它并没有和车辆-->车辆信息-->温度链接

我的代码有什么问题

提前感谢：）

我解决了我的问题：）

出于某种动机，当我尝试将新对象添加到RealmClass的子数组中时，realm失败了

为了解决这个问题，我创建了一个中间对象，然后将该对象添加到这个中间对象中

public static void updateVehicleInfoTemperature(Realm realm, String locata, int position, Temperature temperature) {

    Vehicle vehicle = VehiclePersistence.findVehicleFromLocata(realm, locata);

    realm.beginTransaction();

    VehicleInfo vInfo            = vehicle.getVehicleInfo().get(position);
    VehicleInfo realmVehicleInfo = realm.copyToRealm(vInfo);
    Temperature realmTemp        = realm.copyToRealm(temperature);
    realmVehicleInfo.getTemperatures().add(realmTemp);

    realm.commitTransaction();
}

我希望帮助某人：）

我解决了我的问题：）

出于某种动机，当我尝试将新对象添加到RealmClass的子数组中时，realm失败了

为了解决这个问题，我创建了一个中间对象，然后将该对象添加到这个中间对象中

public static void updateVehicleInfoTemperature(Realm realm, String locata, int position, Temperature temperature) {

    Vehicle vehicle = VehiclePersistence.findVehicleFromLocata(realm, locata);

    realm.beginTransaction();

    VehicleInfo vInfo            = vehicle.getVehicleInfo().get(position);
    VehicleInfo realmVehicleInfo = realm.copyToRealm(vInfo);
    Temperature realmTemp        = realm.copyToRealm(temperature);
    realmVehicleInfo.getTemperatures().add(realmTemp);

    realm.commitTransaction();
}

---

我希望帮助某人：）

您是否错过了

领域。copyToRealmOrUpdate（车辆）向其添加温度后？不起作用。失败，出现下一个异常：java.lang.IllegalArgumentException:没有@PrimaryKey的RealmObject无法更新：class io.realm.VehiclerRealmProxy:
FindVehiclerFromLocata
看起来怎么样？嗨@Beender我编辑了我的问题，添加了FindVehiclerFromLocata。谢谢：）@AdaeRodríguez你的代码看起来不错。你能用一个样本项目重现这个问题并与我们分享代码吗？你可以寄到help@realm.ioAren您是否缺少
域。copyToRealmOrUpdate（车辆）向其添加温度后？不起作用。失败，出现下一个异常：java.lang.IllegalArgumentException:没有@PrimaryKey的RealmObject无法更新：class io.realm.VehiclerRealmProxy:
FindVehiclerFromLocata
看起来怎么样？嗨@Beender我编辑了我的问题，添加了FindVehiclerFromLocata。谢谢：）@AdaeRodríguez你的代码看起来不错。你能用一个样本项目重现这个问题并与我们分享代码吗？你可以寄到help@realm.io