//package nju.seec.helper.entity;
//
//
//import lombok.Data;
//import nju.seec.helper.entity.converter.MapConverter;
//import org.hibernate.annotations.CreationTimestamp;
//import org.hibernate.annotations.DynamicInsert;
//import org.hibernate.annotations.DynamicUpdate;
//import org.hibernate.annotations.UpdateTimestamp;
//
//import javax.persistence.*;
//import java.math.BigDecimal;
//import java.time.LocalDateTime;
//import java.util.Map;
//
///**
// * @author sxt
// * <p>
// * updated by cst
// */
//@Data
//@Entity
//@Table(name = "quiz_student_answer",
//        indexes = {@Index(columnList = "quiz"),
//                @Index(columnList = "student ,quiz")})
//@DynamicUpdate
//@DynamicInsert
//public class QuizStudentAnswer {
//    @Id
//    @GeneratedValue(strategy = GenerationType.IDENTITY)
//    @Column(name = "id")
//    private Long id;
//
//    @ManyToOne(cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.REFRESH}, fetch = FetchType.LAZY)
//    @JoinColumn(name = "quiz_id", referencedColumnName = "id")
//    private Quiz quiz;
//
//    @ManyToOne(cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.REFRESH}, fetch = FetchType.LAZY)
//    @JoinColumn(name = "student_id", referencedColumnName = "id")
//    private User student;
//
//    @SuppressWarnings("all")
//    @Convert(converter = MapConverter.class)
//    @Column(nullable = false)
//    private Map<String, String> answers;
//
//    @Column(name = "create_at", nullable = false, updatable = false)
//    @CreationTimestamp
//    private LocalDateTime createAt;
//
//    @Column(name = "modified_at", nullable = false)
//    @UpdateTimestamp
//    private LocalDateTime modifiedAt;
//
//    @Column(name = "submit_number", nullable = false, columnDefinition = "int default 1 not null")
//    private Integer submitNumber;
//
//    @Column(nullable = false)
//    private BigDecimal score;
//}