Question

我有一个关系OneToOne双向，配置如何级联persis，删除，但当我调用控制器removarPersonaFisicaAction时，这显示下一个错误：

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using RTS;

public class QuestionMenu : MonoBehaviour {
public struct Question{
    public string questionText;
    public string answer;
    public string solution1;
    public string solution2;
    public string solution3;
}
//public void QuestionObject(string QuestionText, string answer, string solution1, string solution2, string solution3){
    //Debug.Log ("lol");
//}
public Question QuestionObject = new Question();
Canvas canvas;
public UserInput Player;
public Text QuestionText;
public Text Button1;
// Use this for initialization
void Start () {
    canvas = GetComponent<Canvas>();
    canvas.enabled = false;
    ResourceManager.QuestionMenuOpen = false;
    //instruction = GetComponent<Text>();
    //Debug.Log (QuestionText);
    Button1.text = "Crazy";
    QuestionText.text = "Yo Bro";
}

// Update is called once per frame
void Update () {
    ////Debug.Log (QuestionObject.questionText);
    if(ResourceManager.QuestionMenuOpen == true){
        //QuestionObject.questionText = "bloo";
        Pause ();
        //QuestionText.text = "Question 1) Differentiate 3x\u2074 + 2x.";
        //Button1.text = "12x\u00B3 + 2";
    }
}

public void Pause (){
    canvas.enabled = true;
    Player.enabled = false;
    Time.timeScale = 0.0f;
    Cursor.visible = true;
    //QuestionObject = Questions.QuestionObject;
    Debug.Log (QuestionObject.questionText);
    QuestionText.text = QuestionObject.questionText;
    //ResourceManager.QuestionMenuOpen = true;
    }

void Resume (){
    Cursor.visible = false;
    canvas.enabled = false;
    Player.enabled = true;
    Time.timeScale = 1.0f;
    ResourceManager.QuestionMenuOpen = false;
    }


}

这是我在实体中的配置：第一个实体：

using UnityEngine;
using System.Collections;

public class QuestionScript : MonoBehaviour {
// Use this for initialization
void Start () {
    QuestionMenu.QuestionObject.answer = "asdf";
}

// Update is called once per frame
void Update () {

}
}

第二实体：

extension Alamofire.Request {

    func responseShop(queue: dispatch_queue_t? = nil, options: NSJSONReadingOptions = .AllowFragments, errorHandler:ProtocolWebServiceErrorHandler?, completionHandler: (ShopCallResult?, WebServiceErrorCode) -> Void ) -> Self {
        //enter thread protected area...
        objc_sync_enter(communicationLockObj)

        return responseJSON() {
            response in
            switch response.result {
            case .Success(let JSON):
                //log json in verbose mode
                log.verbose("\(JSON)")
                //parse the returned json
                let callResult = ShopCallResult(json: JSON)
                //is it failed?
                if callResult.statusCode.failed {
                    //call supplied error handler on the main thread
                    dispatch_async(dispatch_get_main_queue()) {
                        errorHandler?.handleWebServiceError(callResult.statusCode, errorText: callResult.statusCode.localizedText, request: self.request!, json: JSON)
                        completionHandler(callResult, callResult.statusCode)
                    }
                    //release the lock
                    objc_sync_exit(communicationLockObj)
                    //processing done!
                    return
                }
                //no error call handler on main thread
                dispatch_async(dispatch_get_main_queue()) {
                    completionHandler(callResult, WebServiceErrorCode.OK)
                }
                //release the lock
                objc_sync_exit(communicationLockObj)

            case .Failure(let error):
                //WARNING: cancelled is still error code 999?
                //is it cancelled?
                if error.code == -999 {
                    //just call the completion handler
                    dispatch_async(dispatch_get_main_queue()) {
                        //call handler with cancelled code
                        completionHandler(nil, WebServiceErrorCode.requestCancelled)
                    }
                    //release the lock
                    objc_sync_exit(communicationLockObj)
                    //stop furhter processing
                    return
                }
                //error with the json?
                if error.code == Alamofire.Error.Code.JSONSerializationFailed .rawValue {
                    //call the error handler
                    dispatch_async(dispatch_get_main_queue()) {
                        errorHandler?.handleWebServiceError(WebServiceErrorCode.jsonNil, errorText: nil, request: self.request!, json: nil)
                        //call and supply org error
                        completionHandler(nil, WebServiceErrorCode.jsonNil)
                    }
                    //release the lock
                    objc_sync_exit(communicationLockObj)
                    //stop further processing
                    return
                }
                //must be some other kind of network error
                dispatch_async(dispatch_get_main_queue()) {
                    log.error("\(error)")
                    //so call the error handler
                    errorHandler?.handleWebServiceError(WebServiceErrorCode.connectError, errorText : error.localizedDescription, request: self.request!, json: nil)
                    //call and supply org error
                    completionHandler(nil, WebServiceErrorCode.connectError)
                }
                //release the lock
                objc_sync_exit(communicationLockObj)
            }
        }
    }
}

eliminarPersonaFisicaAction：

An exception occurred while executing 'DELETE FROM entidad WHERE id = ?' with params [84]:

SQLSTATE[23000]: Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails (`xxx`.`personafisica`, CONSTRAINT `FK_D55D20169B1A19BB` FOREIGN KEY (`id_entidad`) REFERENCES `entidad` (`id`))

Answer 1

请注意，cascade={"persist", "remove"}仅影响内部Doctrine2持久性和删除。它与数据库无关。

为了告诉DB明确添加＆＃39; onDelete＆＃39;您应在onDelete="CASCADE" config。

中使用JoinColumn的列的属性

//code
/**
     * @ORM\OneToOne(targetEntity="XXX\EntidadBundle\Entity\PersonaFisica", mappedBy="entidad", cascade={"persist", "remove"})
     * @ORM\JoinColumn(name="persona_fisica_id", referencedColumnName="id", onDelete="CASCADE")
     **/
    private $personaFisica;
//code

您不需要在两个表上指定JoinColumn，只有一个表具有额外的id字段就足够了。根据我在代码中看到的内容，您应该将JoinColumn添加到Entidad实体。这将使删除PersonaFisica时删除Entidad实体。

关系OneToOne级联=＆＃34;持续，删除＆＃34;不行

1 个答案: