# 开发背景调研
中小学学科答题小程序，适合各中小学校方，老师或者家长。通过互动和参与式学习，小程序能够通过游戏化元素提升学习的积极性和参与度，从而提升学习效率，促进学生自主学习
# 功能规划
- 分类题库：按照学科（数学、语文、英语等）和知识点进行分类，方便用户选择。
- 随机抽题：用户可以选择特定学科，系统随机生成题目。
- 答题竞赛： 模拟真实竞赛或考试环境，可以设置每场的时间。
- 解析详解：每道题目提供详细的解答和解析，帮助用户理解解题思路。
- 排行榜：展示用户的积分排名，促进比赛竞争。
- 后台-题库管理：支持直接录入，或者通过Excel导入题库（每次5000条)
- 后台-答题参数设置：可以设置竞赛开始状态，每次答题数目，每次答题时长限制，每天可参与答题竞赛次数等参数
# 概要设计
# 数据库设计
```
AnswerModel.DB_STRUCTURE = {
_pid: 'string|true',
ANSWER_ID: 'string|true',
ANSWER_USER_ID: 'string|true',
ANSWER_TYPE: 'int|true|default=0|comment=类型 0=测试,1=正式',
ANSWER_CATE_ID: 'string|true|default=0|comment=分类',
ANSWER_CATE_NAME: 'string|false|comment=分类冗余',
ANSWER_DAY: 'string|true',
ANSWER_START: 'int|true|default=0',
ANSWER_END: 'int|true|default=0',
ANSWER_DURATION: 'string|false',
ANSWER_PER: 'int|true|default=0',
ANSWER_SCORE: 'int|true|default=0',
ANSWER_CNT: 'int|true|default=0',
ANSWER_SUCC_CNT: 'int|true|default=0',
ANSWER_LIST: 'array|true|default=[]',
ANSWER_ADD_TIME: 'int|true',
ANSWER_EDIT_TIME: 'int|true',
ANSWER_ADD_IP: 'string|false',
ANSWER_EDIT_IP: 'string|false',
};
QuestionModel.DB_STRUCTURE = {
_pid: 'string|true',
QUESTION_ID: 'string|true',
QUESTION_TITLE: 'string|true|comment=题目',
QUESTION_STATUS: 'int|true|default=1|comment=状态 0=未启用,1=使用中',
QUESTION_CATE_ID: 'string|true|default=0|comment=分类',
QUESTION_CATE_NAME: 'string|false|comment=分类冗余',
QUESTION_ORDER: 'int|true|default=9999',
QUESTION_FORMS: 'array|true|default=[]',
QUESTION_OBJ: 'object|true|default={}',
QUESTION_ADD_TIME: 'int|true',
QUESTION_EDIT_TIME: 'int|true',
QUESTION_ADD_IP: 'string|false',
QUESTION_EDIT_IP: 'string|false',
};
```
# 难点与实现
```
class QuestionService extends BaseProjectService {
async getAnswerDetail(id) {
return await AnswerModel.getOne(id);
}
async delAnswer(userId, id) {
return await AnswerModel.del({ ANSWER_USER_ID: userId, _id: id });
}
// 得分统计
async statAnswer(userId) {
let where = {
ANSWER_USER_ID: userId,
ANSWER_TYPE: 1
}
let cnt = await AnswerModel.count(where);
let score = await AnswerModel.sum(where, 'ANSWER_SCORE');
let data = {
USER_ANSWER_CNT: cnt,
USER_ANSWER_SCORE: score
}
await UserModel.edit({ USER_MINI_OPENID: userId }, data);
}
// 每日可答题次数校验
async isAnswerTimes(userId, cateId) {
let dayCnt = 100;
let setup = await setupUtil.get('answer');
if (setup) {
setup = dataUtil.dbForms2Obj(setup);
dayCnt = Number(setup.daycnt);
if (setup.open != true) {
return '竞赛尚未开始!';
}
}
let where = {
ANSWER_CATE_ID: String(cateId),
ANSWER_USER_ID: userId,
ANSWER_TYPE: 1,
ANSWER_DAY: timeUtil.time('Y-M-D')
}
let cnt = await AnswerModel.count(where);
if (cnt >= dayCnt) {
return '每日竞赛答题最多' + dayCnt + '次，请明日再来！';
}
return '';
}
async saveMyAnswer(userId,
) {
}
// 随机N条记录，生成本次题库
async genQuestion(userId, type, cateId) {
return { questionList: [], maxTime:10 };
}
async getMyAnswerList(userId, {
search, // 搜索条件
sortType, // 搜索菜单
sortVal, // 搜索菜单
orderBy, // 排序
page,
size,
isTotal = true,
oldTotal
}) {
orderBy = orderBy || {
'ANSWER_ADD_TIME': 'desc'
};
let fields = 'ANSWER_SCORE,ANSWER_CATE_NAME,ANSWER_TYPE,ANSWER_ADD_TIME,ANSWER_CNT,ANSWER_PER,ANSWER_SUCC_CNT,ANSWER_DURATION,ANSWER_START,ANSWER_END';
let where = {};
where.and = {
ANSWER_USER_ID: userId,
_pid: this.getProjectId() //复杂的查询在此处标注PID
};
if (util.isDefined(search) && search) {
where.or = [
];
} else if (sortType && util.isDefined(sortVal)) {
// 搜索菜单
switch (sortType) {
case 'type': {
where.and.ANSWER_TYPE = Number(sortVal);
break;
}
case 'cateId': {
where.and.ANSWER_CATE_ID = String(sortVal);
break;
}
case 'sort': {
orderBy = this.fmtOrderBySort(sortVal, 'ANSWER_ADD_TIME');
break;
}
}
}
return await AnswerModel.getList(where, fields, orderBy, page, size, isTotal, oldTotal);
}
async getScoreRankList({
search, // 搜索条件
sortType, // 搜索菜单
sortVal, // 搜索菜单
orderBy, // 排序
page,
size,
isTotal = true,
oldTotal
}) {
orderBy = {
'USER_ANSWER_SCORE': 'desc'
};
let fields = 'USER_NAME,USER_ANSWER_SCORE';
let where = {};
where.and = {
_pid: this.getProjectId() //复杂的查询在此处标注PID
};
if (util.isDefined(search) && search) {
where.or = [
];
} else if (sortType && util.isDefined(sortVal)) {
// 搜索菜单
switch (sortType) {
case 'sort': {
orderBy = this.fmtOrderBySort(sortVal, 'ANSWER_ADD_TIME');
break;
}
}
}
return await UserModel.getList(where, fields, orderBy, page, size, isTotal, oldTotal);
}
}
```
# UI设计
# 后台管理系统设计
# git代码
[git代码网址](https://gitee.com/DoAmber/MidAnswer)
https://gitee.com/DoAmber/MidAnswer