汽车预约服务平台设计
背景
为汽车销售和服务业务设计，旨在提供用户便捷的预约和汽车服务的方式。
功能设计
- 在线预约试驾：用户可以选择感兴趣的车型并预约试驾，选择适合自己的时间进行试驾安排。
- 维保服务预约：用户可以预约汽车的定期保养、维修和检查服务。可以选择服务项目、预约时间。
- 店内活动：4S店为回馈用户，会经常组织一些活动。用户可以在小程序上浏览活动信息并报名参加活动，店家可以通过小程序收集报名信息并进行管理，包括签到、活动记录、活动照片、活动评论等。
- 活动数据统计：小程序可以统计活动数据，包括参与人数、评论反馈等。
设计图
数据库设计
ActivityModel.DB_STRUCTURE = {
_pid: 'string|true',
ACTIVITY_ID: 'string|true',
ACTIVITY_TITLE: 'string|true|comment=标题',
ACTIVITY_STATUS: 'int|true|default=1|comment=状态 0=未启用,1=使用中',
ACTIVITY_CATE_ID: 'string|true|default=0|comment=分类',
ACTIVITY_CATE_NAME: 'string|false|comment=分类冗余',
ACTIVITY_CANCEL_SET: 'int|true|default=1|comment=取消设置 0=不允,1=允许,2=仅截止前可取消',
ACTIVITY_CHECK_SET: 'int|true|default=0|comment=审核 0=不需要审核,1=需要审核',
ACTIVITY_IS_MENU: 'int|true|default=1|comment=是否公开展示名单',
ACTIVITY_MAX_CNT: 'int|true|default=20|comment=人数上限 0=不限',
ACTIVITY_START: 'int|false|comment=活动开始时间',
ACTIVITY_END: 'int|false|comment=活动截止时间',
ACTIVITY_STOP: 'int|true|default=0|comment=报名截止时间 0=永不过期',
ACTIVITY_ORDER: 'int|true|default=9999',
ACTIVITY_VOUCH: 'int|true|default=0',
ACTIVITY_FORMS: 'array|true|default=[]',
ACTIVITY_OBJ: 'object|true|default={}',
ACTIVITY_JOIN_FORMS: 'array|true|default=[]',
ACTIVITY_ADDRESS: 'string|false|comment=详细地址',
ACTIVITY_ADDRESS_GEO: 'object|false|comment=详细地址坐标参数',
ACTIVITY_QR: 'string|false',
ACTIVITY_VIEW_CNT: 'int|true|default=0',
ACTIVITY_JOIN_CNT: 'int|true|default=0',
ACTIVITY_COMMENT_CNT: 'int|true|default=0',
ACTIVITY_USER_LIST: 'array|true|default=[]|comment={name,id,pic}',
ACTIVITY_ADD_TIME: 'int|true',
ACTIVITY_EDIT_TIME: 'int|true',
ACTIVITY_ADD_IP: 'string|false',
ACTIVITY_EDIT_IP: 'string|false',
};
MeetModel.DB_STRUCTURE = {
_pid: 'string|true',
MEET_ID: 'string|true',
MEET_ADMIN_ID: 'string|true|comment=添加的管理员',
MEET_TITLE: 'string|true|comment=标题',
MEET_JOIN_FORMS: 'array|true|default=[]|comment=表单字段设置',
MEET_DAYS: 'array|true|default=[]|comment=最近一次修改保存的可用日期',
MEET_CATE_ID: 'string|true|comment=分类编号',
MEET_CATE_NAME: 'string|true|comment=分类冗余',
MEET_FORMS: 'array|true|default=[]',
MEET_OBJ: 'object|true|default={}',
MEET_CANCEL_SET: 'int|true|default=1|comment=取消设置 0=不允,1=允许,2=仅开始前可取消',
MEET_STATUS: 'int|true|default=1|comment=状态 0=未启用,1=使用中,9=停止预约,10=已关闭',
MEET_ORDER: 'int|true|default=9999',
MEET_VOUCH: 'int|true|default=0',
MEET_QR: 'string|false',
MEET_ADD_TIME: 'int|true',
MEET_EDIT_TIME: 'int|true',
MEET_ADD_IP: 'string|false',
MEET_EDIT_IP: 'string|false',
};
核心代码
class MeetService extends BaseProjectService {
constructor() {
super();
this._log = new LogUtil(projectConfig.MEET_LOG_LEVEL);
}
/**
* 抛出异常
* @param {*} msg
* @param {*} code
*/
AppError(msg) {
this._log.error(msg);
super.AppError(msg);
}
_meetLog(meet, func = '', msg = '') {
let str = '';
str = `[MEET=${meet.MEET_TITLE}][${func}] ${msg}`;
this._log.debug(str);
}
/** 统一获取Meet（某天) */
async getMeetOneDay(meetId, day, where, fields = '*') {
let meet = await MeetModel.getOne(where, fields);
if (!meet) return meet;
meet.MEET_DAYS_SET = await this.getDaysSet(meetId, day, day);
return meet;
}
/** 获取日期设置 */
async getDaysSet(meetId, startDay, endDay = null) {
let where = {
DAY_MEET_ID: meetId
}
if (startDay && endDay && endDay == startDay)
where.day = startDay;
else if (startDay && endDay)
where.day = ['between', startDay, endDay];
else if (!startDay && endDay)
where.day = ['<=', endDay];
else if (startDay && !endDay)
where.day = ['>=', startDay];
let orderBy = {
'day': 'asc'
}
let list = await DayModel.getAllBig(where, 'day,dayDesc,times', orderBy, 1000);
for (let k = 0; k < list.length; k++) {
delete list[k]._id;
}
return list;
}
// 按时段统计某时段报名情况
async statJoinCnt(meetId, timeMark) {
let whereDay = {
DAY_MEET_ID: meetId,
day: this.getDayByTimeMark(timeMark)
};
let day = await DayModel.getOne(whereDay, 'times');
if (!day) return;
let whereJoin = {
JOIN_MEET_TIME_MARK: timeMark,
JOIN_MEET_ID: meetId
};
let ret = await JoinModel.groupCount(whereJoin, 'JOIN_STATUS');
let stat = { //统计数据
succCnt: ret['JOIN_STATUS_1'] || 0, //1=预约成功,
cancelCnt: ret['JOIN_STATUS_10'] || 0, //10=已取消,
adminCancelCnt: ret['JOIN_STATUS_99'] || 0, //99=后台取消
};
let times = day.times;
for (let j in times) {
if (times[j].mark === timeMark) {
let data = {
['times.' + j + '.stat']: stat
}
await DayModel.edit(whereDay, data);
return;
}
}
}
// 预约前检测
async beforeJoin(userId, meetId, timeMark) {
await this.checkMeetRules(userId, meetId, timeMark);
}
// 用户预约逻辑
async join(userId, meetId, timeMark, formsList) {
}
// 根据日期获取其所在天设置
getDaySetByDay(meet, day) {
for (let k = 0; k < meet.MEET_DAYS_SET.length; k++) {
if (meet.MEET_DAYS_SET[k].day == day)
return dataUtil.deepClone(meet.MEET_DAYS_SET[k]);
}
return null;
}
// 根据时段标识获取其所在天
getDayByTimeMark(timeMark) {
return timeMark.substr(1, 4) + '-' + timeMark.substr(5, 2) + '-' + timeMark.substr(7, 2);
}
// 根据时段标识获取其所在天设置
getDaySetByTimeMark(meet, timeMark) {
let day = this.getDayByTimeMark(timeMark);
for (let k = 0; k < meet.MEET_DAYS_SET.length; k++) {
if (meet.MEET_DAYS_SET[k].day == day)
return dataUtil.deepClone(meet.MEET_DAYS_SET[k]);
}
return null;
}
// 根据时段标识获取其所在时段设置
getTimeSetByTimeMark(meet, timeMark) {
let day = this.getDayByTimeMark(timeMark);
for (let k = 0; k < meet.MEET_DAYS_SET.length; k++) {
if (meet.MEET_DAYS_SET[k].day != day) continue;
for (let j in meet.MEET_DAYS_SET[k].times) {
if (meet.MEET_DAYS_SET[k].times[j].mark == timeMark)
return dataUtil.deepClone(meet.MEET_DAYS_SET[k].times[j]);
}
}
return null;
}
// 预约时段人数和状态控制校验
async checkMeetTimeControll(meet, timeMark, meetPeopleCnt = 1) {
if (!meet) this.AppError('预约时段设置错误, 预约项目不存在');
let daySet = this.getDaySetByTimeMark(meet, timeMark); // 当天设置
let timeSet = this.getTimeSetByTimeMark(meet, timeMark); // 预约时段设置
if (!daySet || !timeSet) this.AppError('预约时段设置错误day&time');
let statusDesc = timeSet.status == 1 ? '开启' : '关闭';
let limitDesc = '';
if (timeSet.isLimit) {
limitDesc = '人数上限MAX=' + timeSet.limit;
} else
limitDesc = '人数不限制NO';
this._meetLog(meet, `------------------------------`);
this._meetLog(meet, `#预约时段控制,预约日期=<${daySet.day}>`, `预约时段=[${timeSet.start}-${timeSet.end}],状态=${statusDesc}, ${limitDesc} 当前预约成功人数=${timeSet.stat.succCnt}`);
if (timeSet.status == 0) this.AppError('该时段预约已经关闭，请选择其他');
// 时段总人数限制
if (timeSet.isLimit) {
if (timeSet.stat.succCnt >= timeSet.limit) {
this.AppError('该时段预约人员已满，请选择其他');
}
let maxCnt = timeSet.limit - timeSet.stat.succCnt;
if (maxCnt < meetPeopleCnt) {
this.AppError('本时段最多还可以预约' + (maxCnt) + '人，您当前提交了' + meetPeopleCnt + '人，请调整后再提交');
}
}
}
/** 报名规则校验 */
async checkMeetRules(userId, meetId, timeMark, formsList = null) {
// 预约时段是否存在
let meetWhere = {
_id: meetId
};
let day = this.getDayByTimeMark(timeMark);
let meet = await this.getMeetOneDay(meetId, day, meetWhere);
if (!meet) {
this.AppError('预约时段选择错误，请重新选择');
}
// 预约时段人数和状态控制校验
let meetPeopleCnt = formsList ? formsList.length : 1;
await this.checkMeetTimeControll(meet, timeMark, meetPeopleCnt);
// 截止规则
await this.checkMeetEndSet(meet, timeMark);
// 针对用户的次数限制
await this.checkMeetLimitSet(userId, meet, timeMark, meetPeopleCnt);
}
// 预约次数限制校验
async checkMeetLimitSet(userId, meet, timeMark, nowCnt) {
if (!meet) this.AppError('预约次数规则错误, 预约项目不存在');
let meetId = meet._id;
let daySet = this.getDaySetByTimeMark(meet, timeMark); // 当天设置
let timeSet = this.getTimeSetByTimeMark(meet, timeMark); // 预约时段设置
this._meetLog(meet, `------------------------------`);
this._meetLog(meet, `#预约次数规则,预约日期=<${daySet.day}>`, `预约时段=[${timeSet.start}～${timeSet.end}]`);
let where = {
JOIN_MEET_ID: meetId,
JOIN_MEET_TIME_MARK: timeMark,
JOIN_USER_ID: userId,
JOIN_STATUS: JoinModel.STATUS.SUCC
}
let cnt = await JoinModel.count(where);
let maxCnt = projectConfig.MEET_MAX_JOIN_CNT;
this._meetLog(meet, `预约次数规则,mode=本时段可预约${maxCnt}次`, `当前已预约=${cnt}次`);
if (cnt >= maxCnt)
this.AppError(`您本时段已经预约，不能继续预约`);
}
// 预约截止设置校验
async checkMeetEndSet(meet, timeMark) {
if (!meet) this.AppError('预约截止规则错误, 预约项目不存在');
this._meetLog(meet, `------------------------------`);
let daySet = this.getDaySetByTimeMark(meet, timeMark); // 当天设置
let timeSet = this.getTimeSetByTimeMark(meet, timeMark); // 预约时段设置
this._meetLog(meet, `#预约截止规则,预约日期=<${daySet.day}>`, `预约时段=[${timeSet.start}-${timeSet.end}]`);
let nowTime = timeUtil.time('Y-M-D h:m:s');
/*
let startTime = daySet.day + ' ' + timeSet.start + ':00';
this._meetLog(meet, `预约开始规则,mode=<时段过期判定>`, `预约开始时段=${startTime},当前时段=${nowTime}`);
if (nowTime > startTime) {
this.AppError('该时段已开始，无法预约，请选择其他');
}*/
let endTime = daySet.day + ' ' + timeSet.end + ':59';
this._meetLog(meet, `预约开始规则,mode=<时段过期判定>`, `预约结束时段=${endTime},当前时段=${nowTime}`);
if (nowTime > endTime) {
this.AppError('该时段已结束，无法预约，请选择其他');
}
}
/** 预约详情 */
async viewMeet(meetId) {
let fields = '*';
let where = {
_id: meetId,
MEET_STATUS: ['in', [MeetModel.STATUS.COMM, MeetModel.STATUS.OVER]]
}
let meet = await MeetModel.getOne(where, fields);
if (!meet) return null;
let getDaysSet = [];
meet.MEET_DAYS_SET = await this.getDaysSet(meetId, timeUtil.time('Y-M-D')); //今天及以后
let daysSet = meet.MEET_DAYS_SET;
let now = timeUtil.time('Y-M-D');
for (let k = 0; k < daysSet.length; k++) {
let dayNode = daysSet[k];
if (dayNode.day < now) continue; // 排除过期
let getTimes = [];
for (let j in dayNode.times) {
let timeNode = dayNode.times[j];
// 排除状态关闭的时段
if (timeNode.status != 1) continue;
// 判断数量是否已满
if (timeNode.isLimit && timeNode.stat.succCnt >= timeNode.limit)
timeNode.error = '预约已满';
// 截止规则
if (!timeNode.error) {
try {
await this.checkMeetEndSet(meet, timeNode.mark);
} catch (ex) {
if (ex.name == 'AppError')
timeNode.error = '预约结束';
else
throw ex;
}
}
getTimes.push(timeNode);
}
dayNode.times = getTimes;
getDaysSet.push(dayNode);
}
// 只返回需要的字段
let ret = {};
ret.MEET_DAYS_SET = getDaysSet;
ret.MEET_QR = meet.MEET_QR;
ret.MEET_TITLE = meet.MEET_TITLE;
ret.MEET_CATE_NAME = meet.MEET_CATE_NAME;
ret.MEET_OBJ = meet.MEET_OBJ;
return ret;
}
/** 预约前获取关键信息 */
async detailForJoin(userId, meetId, timeMark) {
let fields = 'MEET_DAYS_SET,MEET_JOIN_FORMS, MEET_TITLE';
let where = {
_id: meetId,
MEET_STATUS: ['in', [MeetModel.STATUS.COMM, MeetModel.STATUS.OVER]]
}
let day = this.getDayByTimeMark(timeMark);
let meet = await this.getMeetOneDay(meetId, day, where, fields);
if (!meet) return null;
let dayDesc = timeUtil.fmtDateCHN(this.getDaySetByTimeMark(meet, timeMark).day);
let timeSet = this.getTimeSetByTimeMark(meet, timeMark);
let timeDesc = timeSet.start + '～' + timeSet.end;
meet.dayDesc = dayDesc + ' ' + timeDesc;
// 取出本人最近一次本时段填写表单
let whereMy = {
JOIN_USER_ID: userId,
}
let orderByMy = {
JOIN_ADD_TIME: 'desc'
}
let joinMy = await JoinModel.getOne(whereMy, 'JOIN_FORMS', orderByMy);
if (joinMy)
meet.myForms = joinMy.JOIN_FORMS;
else
meet.myForms = [];
return meet;
}
/** 按天获取预约项目 */
async getMeetListByDay(day) {
let where = {
'meet.MEET_STATUS': ['in', [MeetModel.STATUS.COMM, MeetModel.STATUS.OVER]],
'day': day,
};
let orderBy = {
'MEET_ORDER': 'asc',
'MEET_ADD_TIME': 'desc'
};
let fields = 'meet.MEET_ORDER,meet.MEET_ADD_TIME,meet.MEET_TITLE,meet.MEET_DAYS_SET,meet.MEET_OBJ.cover, DAY_MEET_ID, day, times';
let joinParams = {
from: MeetModel.CL,
localField: 'DAY_MEET_ID',
foreignField: '_id',
as: 'meet',
};
let list = await DayModel.getListJoin(joinParams, where, fields, orderBy, 1, 100, false);
list = list.list;
let retList = [];
for (let k = 0; k < list.length; k++) {
let usefulTimes = [];
for (let j in list[k].times) {
if (list[k].times[j].status != 1) continue;
usefulTimes.push(list[k].times[j]);
}
if (usefulTimes.length == 0) continue;
let node = {};
node.timeDesc = usefulTimes.length > 1 ? usefulTimes.length + '个时段' : usefulTimes[0].start;
node.title = list[k].meet.MEET_TITLE;
node.pic = list[k].meet.MEET_OBJ.cover;
node._id = list[k].DAY_MEET_ID;
retList.push(node);
}
return retList;
}
/** 获取从某天开始可预约的日期 */
async getHasDaysFromDay(day) {
let where = {
day: ['>=', day],
};
let fields = 'times,day';
let list = await DayModel.getAllBig(where, fields);
let retList = [];
for (let k = 0; k < list.length; k++) {
for (let n in list[k].times) {
if (list[k].times[n].status == 1) {
retList.push(list[k].day);
break;
}
}
}
return retList;
}
/** 取得预约分页列表 */
async getMeetList({
search, // 搜索条件
sortType, // 搜索菜单
sortVal, // 搜索菜单
orderBy, // 排序
cateId, //分类查询条件
page,
size,
isTotal = true,
oldTotal
}) {
orderBy = orderBy || {
'MEET_ORDER': 'asc',
'MEET_ADD_TIME': 'desc'
};
let fields = 'MEET_TITLE,MEET_OBJ,MEET_DAYS,MEET_CATE_NAME,MEET_CATE_ID';
let where = {};
where.and = {
_pid: this.getProjectId() //复杂的查询在此处标注PID
};
if (cateId && cateId !== '0') where.and.MEET_CATE_ID = cateId;
where.and.MEET_STATUS = ['in', [MeetModel.STATUS.COMM, MeetModel.STATUS.OVER]]; // 状态
if (util.isDefined(search) && search) {
where.or = [
{ MEET_TITLE: ['like', search] },
];
} else if (sortType && util.isDefined(sortVal)) {
// 搜索菜单
switch (sortType) {
case 'sort': {
orderBy = this.fmtOrderBySort(sortVal, 'NEWS_ADD_TIME');
break;
}
case 'cateId': {
if (sortVal) where.and.MEET_CATE_ID = String(sortVal);
break;
}
}
}
let result = await MeetModel.getList(where, fields, orderBy, page, size, isTotal, oldTotal);
return result;
}
/** 取消我的预约 只有成功可以取消 */
async cancelMyJoin(userId, joinId) {
let where = {
JOIN_USER_ID: userId,
_id: joinId,
JOIN_IS_CHECKIN: 0, // 核销不能取消
JOIN_STATUS: JoinModel.STATUS.SUCC
};
let join = await JoinModel.getOne(where);
if (!join) {
this.AppError('未找到可取消的预约记录');
}
// 取消规则判定
let whereMeet = {
_id: join.JOIN_MEET_ID,
MEET_STATUS: ['in', [MeetModel.STATUS.COMM, MeetModel.STATUS.OVER]]
}
let meet = await this.getMeetOneDay(join.JOIN_MEET_ID, join.JOIN_MEET_DAY, whereMeet);
if (!meet) this.AppError('预约项目不存在或者已关闭');
let daySet = this.getDaySetByTimeMark(meet, join.JOIN_MEET_TIME_MARK);
let timeSet = this.getTimeSetByTimeMark(meet, join.JOIN_MEET_TIME_MARK);
if (!timeSet) this.AppError('被取消的时段不存在');
if (meet.MEET_CANCEL_SET == 0)
this.AppError('该预约不能取消');
let startT = daySet.day + ' ' + timeSet.start + ':00';
let startTime = timeUtil.time2Timestamp(startT);
let now = timeUtil.time();
if (meet.MEET_CANCEL_SET == 2 && now > startTime)
this.AppError('该预约时段已经开始，无法取消');
// TODO 已过期不能取消
await JoinModel.del(where);
// 统计
this.statJoinCnt(join.JOIN_MEET_ID, join.JOIN_MEET_TIME_MARK);
}
/** 取得我的预约详情 */
async getMyJoinDetail(userId, joinId) {
let fields = 'JOIN_COMPLETE_END_TIME,JOIN_IS_CHECKIN,JOIN_CHECKIN_TIME,JOIN_REASON,JOIN_MEET_ID,JOIN_MEET_TITLE,JOIN_MEET_DAY,JOIN_MEET_TIME_START,JOIN_MEET_TIME_END,JOIN_STATUS,JOIN_ADD_TIME,JOIN_CODE,JOIN_FORMS';
let where = {
_id: joinId,
JOIN_USER_ID: userId
};
return await JoinModel.getOne(where, fields);
}
/** 取得我的预约分页列表 */
async getMyJoinList(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 || {
// 'JOIN_MEET_DAY': 'desc',
// 'JOIN_MEET_TIME_START': 'desc',
'JOIN_ADD_TIME': 'desc'
};
let fields = 'JOIN_COMPLETE_END_TIME,JOIN_IS_CHECKIN,JOIN_REASON,JOIN_MEET_ID,JOIN_MEET_TITLE,JOIN_MEET_DAY,JOIN_MEET_TIME_START,JOIN_MEET_TIME_END,JOIN_STATUS,JOIN_ADD_TIME,JOIN_OBJ';
let where = {
JOIN_USER_ID: userId
};
//where.MEET_STATUS = ['in', [MeetModel.STATUS.COMM, MeetModel.STATUS.OVER]]; // 状态
if (util.isDefined(search) && search) {
where['JOIN_MEET_TITLE'] = {
$regex: '.*' + search,
$options: 'i'
};
} else if (sortType) {
// 搜索菜单
switch (sortType) {
case 'cateId': {
if (sortVal) where.JOIN_MEET_CATE_ID = String(sortVal);
break;
}
case 'all': { //所有
break;
}
case 'use': { //可用未过期
where.JOIN_STATUS = JoinModel.STATUS.SUCC;
where.JOIN_COMPLETE_END_TIME = ['>=', timeUtil.time('Y-M-D h:m')];
break;
}
case 'check': { //已核销
where.JOIN_STATUS = JoinModel.STATUS.SUCC;
where.JOIN_IS_CHECKIN = 1;
break;
}
case 'timeout': { //已过期未核销
where.JOIN_STATUS = JoinModel.STATUS.SUCC;
where.JOIN_IS_CHECKIN = 0;
where.JOIN_COMPLETE_END_TIME = ['<', timeUtil.time('Y-M-D h:m')];
break;
}
case 'succ': { //预约成功
where.JOIN_STATUS = JoinModel.STATUS.SUCC;
//where.JOIN_MEET_DAY = ['>=', timeUtil.time('Y-M-D h:m')];
//where.JOIN_MEET_TIME_START = ['>=', timeUtil.time('h:m')];
break;
}
case 'cancel': { //已取消
where.JOIN_STATUS = ['in', [JoinModel.STATUS.CANCEL, JoinModel.STATUS.ADMIN_CANCEL]];
break;
}
}
}
let result = await JoinModel.getList(where, fields, orderBy, page, size, isTotal, oldTotal);
return result;
}
/** 取得我的某日预约列表 */
async getMyJoinSomeday(userId, day) {
let fields = 'JOIN_IS_CHECKIN,JOIN_MEET_ID,JOIN_MEET_TITLE,JOIN_MEET_DAY,JOIN_MEET_TIME_START,JOIN_MEET_TIME_END,JOIN_STATUS,JOIN_ADD_TIME';
let where = {
JOIN_USER_ID: userId,
JOIN_MEET_DAY: day
};
//where.MEET_STATUS = ['in', [MeetModel.STATUS.COMM, MeetModel.STATUS.OVER]]; // 状态
let orderBy = {
'JOIN_MEET_TIME_START': 'asc',
'JOIN_ADD_TIME': 'desc'
}
return await JoinModel.getAll(where, fields, orderBy);
}
}
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