backend/src/main/java/nju/seec/helper/data/dao/QuestionDAO.java

package nju.seec.helper.data.dao;

import nju.seec.helper.data.entity.Question;
import nju.seec.helper.util.exception.HelperException;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

/**
 * @author cst
 */
@Repository
public interface QuestionDAO extends JpaRepository<Question, Integer> {
    /**
     * 封装findById方法
     *
     * @param questionId
     * @return
     */
    default Question findQuestionById(int questionId) {
        return this.findById(questionId).orElseThrow(() -> HelperException.of(HelperException.ExceptionType.NOT_FOUND, "找不到题目"));
    }
}