backend/src/main/java/nju/seec/helper/data/entity/Quiz.java

package nju.seec.helper.data.entity;

import lombok.Data;
import nju.seec.helper.util.enums.QuizType;
import org.hibernate.annotations.UpdateTimestamp;

import javax.persistence.*;
import java.time.LocalDateTime;
import java.util.List;

/**
 * @author cst
 */
@Data
@Entity
@Table(name = "quiz")
public class Quiz {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Integer id;

    @Column(name = "slide_id", nullable = false)
    private Integer slideId;

    @Column(nullable = false)
    private QuizType type;

    @ManyToMany
    @JoinTable(name = "quiz_question",
            joinColumns = @JoinColumn(name = "quiz_id"),
            inverseJoinColumns = @JoinColumn(name = "question_id"))
    private List<Question> questions;

    @Column(name = "update_time")
    @UpdateTimestamp
    private LocalDateTime updateTime;
}