ORMLite與收集崩潰

Question

我有ormlite在android中堅持我的數據。 我有這個錯誤：

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.firext.android/com.firext.android.activities.reportList.ReportListActivity}: java.lang.RuntimeException: java.sql.SQLException: Foreign collection class com.firext.android.model.bbdd.DBQuestionsGroup for field 'questionsGroup' column-name does not contain a foreign field named 'questionsGroupsList' of class com.firext.android.model.bbdd.DBQuestions 

我的課其本;

@DatabaseTable 
    public class DBQuestionsGroup { 

     @DatabaseField(generatedId = true, columnName = "_id") 
     private Long ID; 
     @DatabaseField(columnName = "times") 
     private int times; 
     @DatabaseField(columnName = "idQuestionsGroup") 
     private int idQuestionsGroup; 
     @DatabaseField(columnName = "nameQuestionsGroup") 
     private String nameQuestionsGroup; 
     @ForeignCollectionField 
     private Collection<DBQuestion> questionsGroupsList; 

getters and setter 


@DatabaseTable 
public class DBQuestion { 

    @DatabaseField(generatedId = true, columnName = "_id") 
    private int ID; 
    @DatabaseField(columnName = "question") 
    private String question; 
    @DatabaseField(columnName = "questionOrder") 
    private int questionOrder; 
    @DatabaseField(foreign = true,foreignAutoCreate = true) 
    private DBReplieType replyType; 
    @DatabaseField(columnName = "idQuestion") 
    private int idQuestion; 
    @DatabaseField(foreign = true, foreignAutoRefresh= true) 
    private DBQuestionsGroup DBQuestion; 

什麼問題？

Answer 1

也許你需要在DBQuestionsGroup類ForeingCollection設置了這種方式：

@ForeignCollectionField 
private ForeignCollection<DBQuestion> questionsGroupsList; 

這個例子可以幫助你：https://github.com/j256/ormlite-jdbc/tree/master/src/test/java/com/j256/ormlite/examples/foreignCollection