Question

我有三张桌子：

1）卫生 2）UNITDATA 3）数据

数据（PK）的ID在Sanitation和UnitData表上用作FK。所以，我认为，如果我必须从Data表中删除任何数据 - 首先我必须从Sanitation和UnitData表中删除数据。这是我的控制器：

 @ExternalRestrictions("Edit Data")
        public static int delete(Long id) {

            int confirm = 1;

            if(request.isAjax()) {

            List<Sanitation> sanitation1 = Sanitation.find("data_id = ?", id).fetch();

                if(sanitation1.size()!=0){

                    Sanitation sanitation = sanitation1.get(0);
                    Logger.info("sanitationget: " + sanitation1.get(0));

                    sanitation.delete();
                    sanitation.refresh();
                }


                List<UnitData> unitData1 = UnitData.find("data_id = ?", id).fetch();

               Logger.info("unidatasize: " + unitData1.size());
                  for(int i=0;i<unitData1.size();i++){


                      UnitData unitdata = unitData1.get(i);
                      unitdata.delete();
                      unitdata.refresh();
                  }

                Data data = Data.findById(id);

                Logger.info("data: "+ data);
                data.delete();
                data.refresh();

 return confirm;

}

模型是：

1）数据模型：

 public String submissionId;

    public String groupTagName;

    public String respondentId;

    public Boolean isVisited;
    public Date resolveDate;

    @ManyToOne(cascade = {CascadeType.PERSIST, CascadeType.REMOVE})
    public SchoolInformation schools;

    @ManyToOne(cascade = {CascadeType.PERSIST, CascadeType.REMOVE})
    public Ngo ngo;

    public int iteration = 1;

    public int approvalStatus;

    public int approvalState;

    otherwise true */
    public Boolean isFarmerActive = true;

    @Required
    @ManyToOne(cascade = {CascadeType.PERSIST, CascadeType.REMOVE})
    public Form form;

    @Lob
    @Basic(fetch = FetchType.LAZY)
    public byte[] xml;

    @Lob
    @Basic(fetch = FetchType.LAZY)
    public byte[] dataSpecificXml;

    @Required
    @ManyToOne(cascade = { CascadeType.PERSIST, CascadeType.REMOVE })
    public User sender;

    @Required
    @ManyToOne(cascade = { CascadeType.PERSIST, CascadeType.REMOVE })

    public Role senderRole;

    public Boolean webEntry = false;

    @Transient
    public List items;
    public Date received;

    public Date startTime;
    public Date endTime;

    public String[] audioData;

    public Double latitude;
    public Double longitude;
    public Double accuracy;
    public String image;
    public Boolean isExtracted = false;
    public String webOrMob = "";

2）UnitData模型：

@Required
    @ManyToOne(cascade = { CascadeType.PERSIST, CascadeType.REMOVE })
    public Data data;

    @ManyToOne(cascade = { CascadeType.PERSIST, CascadeType.REMOVE })
    public Form form;

    @Required
    public String titleVar;
    public String title;
    public String type;
    public String valueVar;
    @Column(length=1023)
    public String value;
    public String extraValue;

    @Required
    @ManyToOne(cascade = { CascadeType.PERSIST, CascadeType.REMOVE })
    public FormResource formResource;


    @Min(0)
    public int iterationNo;

3）卫生模式：

@ManyToOne(cascade = { CascadeType.PERSIST, CascadeType.REMOVE })
    public Data data;
    @ManyToOne(cascade = { CascadeType.PERSIST, CascadeType.REMOVE })
    public Form form;

    @ManyToOne(cascade = { CascadeType.PERSIST, CascadeType.REMOVE })
    public User sender;

    @ManyToOne(cascade = { CascadeType.PERSIST, CascadeType.REMOVE })
    public SchoolInformation school;

    public String month = "";
    public String res_type = "";
    public String num_toilet_unusable = "";
    public String why_toilet_unusable = "";
    public String toilet_clean_interval = "";

    public String harpic = "";
    public String is_sanitation_prob_informed = "";
    public String how_informed_sanitation_prob = "";
    public String how_informed_sanitation_prob_other = "";

    public String took_step_sanitation_prob = "";
    public String rank_sanitation = "";

当我尝试删除时（点击删除按钮），它会在 sanitation.delete（）行中显示错误：

发生PersistenceException： org.hibernate.exception.ConstraintViolationException：不能执行JDBC批量更新

问题出在哪里？

Play - 发生PersistenceException：org.hibernate.exception.ConstraintViolationException：无法执行JDBC批量更新

0 个答案: