ccDangJianExam/src/main/java/com/dsideal/FengHuang/Exam/Model/ExamModel.java

package com.dsideal.FengHuang.Exam.Model;

import cn.hutool.core.date.DateTime;
import com.jfinal.plugin.activerecord.Db;
import com.jfinal.plugin.activerecord.Record;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

public class ExamModel {
    /**
     * 功能：增加考试人员
     *
     * @param person_name
     * @param ks
     * @param tel
     */
    public boolean addPerson(String person_name, String ks, String tel) {
        //1、检查此人员是不是已经存在过
        String sql = "select count(1) as count from t_exam_person where person_name=? and tel=? and b_use=1";
        int cnt = Db.findFirst(sql, person_name, tel).getInt("count");
        if (cnt > 0) {
            return false;
        }
        //2、增加人员信息
        Record record = new Record();
        record.set("person_name", person_name);
        record.set("ks", ks);
        record.set("tel", tel);
        record.set("start_time", DateTime.now());
        Db.save("t_exam_person", "person_id", record);
        int person_id = record.getInt("person_id");

        //3、创建当前人员的试题
        // 目前的思路是单选题，判断题，多选题的顺序来进行题目的随机化处理
        sql = "select type_id from t_exam_question group by type_id order by type_id";
        List<Record> listTypeCnt = Db.find(sql);

        int order_id = 0;
        for (Record rType : listTypeCnt) {
            int type_id = rType.getInt("type_id");
            sql = "select question_id,type_id,answer,score from t_exam_question where type_id=? order by question_id";
            List<Record> tmpList = Db.find(sql, type_id);

            // 调用shuffle方法进行随机化打乱
            Collections.shuffle(tmpList);

            //批量存
            List<Record> writeList = new ArrayList<>();
            for (Record r1 : tmpList) {
                Record rExam = new Record();
                rExam.set("person_id", person_id);
                rExam.set("order_id", ++order_id);
                rExam.set("question_id", r1.getInt("question_id"));
                rExam.set("type_id", r1.getInt("type_id"));
                rExam.set("answer", r1.getStr("answer"));
                rExam.set("score", r1.getInt("score"));
                writeList.add(rExam);
            }
            Db.batchSave("t_exam_record", writeList, 100);
        }
        return true;
    }
}