EvaluationSystem:后端业务接口(js同步操作数据库)

1、用户业务接口(services/user.js)

用户相关业务:

  • 注册账号
  • 登录账号
  • 查看用户信息
  • 修改个人资料
点击查看代码
// 用户相关业务
const sequelize = require('../shared/sequelize');
const User = sequelize.import('../models/user');

// 注册账号
exports.register = async function (useraccount, password) {
    const user = await User.findOne({
        where: {useraccount},
    });
    if (user !== null) {
        throw new Error("账号已存在");
    }
    nickname = 'defaultname';
    return User.create({
        useraccount,
        password,
        nickname
    });
};
// 登录
exports.login = async function login(useraccount, password) {
    const user = await User.findOne({
        where: {useraccount}
    });
    if (user === null || !user.checkPassword(password)) {
        throw new Error('账号或密码错误');
    }
    return user;
};
// 查看用户信息
exports.show = function (useraccount) {
    return User.findByPk(useraccount, {
        attributes: ['useraccount', 'nickname', 'evalnum']
    });
};
// 修改个人资料
exports.changeProfile = function (useraccount, nickname, password) {
    return User.update({nickname, password: password || ''}, {where: {useraccount: useraccount}, individualHooks: true});
};

2、数据业务接口(services/data.js)

  • 添加一条数据
  • 查询一条数据
  • 所有数据列表
点击查看代码
const sequelize = require('../shared/sequelize');
const data = sequelize.import('../models/data');

// 批量添加数据(管理员功能)
// 参数 obj = [{数据1名字,dbname, datapath},{数据2,...},...]
exports.publish = async function (obj){
    try{
        const res = await data.bulkCreate(obj, {
            individualHooks: true,  // 对每个数据分别执行一遍生命周期函数
        });
        console.log('插入成功', res.map(res => { res.toJSON() }));
    }
    catch (e) {
        console.log('插入失败', e);
    } 
}

// 查询一条数据
exports.show = async function (dataname) {
    return data.findByPk(dataname);
};

// 所有数据列表
exports.list = async function (page = 1, size = 10) {
    return data.findAndCountAll({
        limit: size,
        offset: (page - 1) * size,
        order: [['evalnum', 'DESC']],
    });
};

3、测评业务接口(services/ceping.js)

  • 添加或更新一条测评数据
  • 假删除测试(权限判定)
  • 查看指定数据名称的测评列表
  • 查看指定用户的测评结果
  • 查看指定用户和指定数据名称的测评结果
点击查看代码
// 数据测评
const allocation = require('../alloction');
const sequelize = require('../shared/sequelize');
const dataService = require('./data');

const ceping = sequelize.import('../models/ceping');
const User = sequelize.import('../models/user');

const evalOpt = allocation.evalOpt;

// 测评一条数据
exports.publish = async function (dataname, useraccount, comment, index) {
    const targetdata = await dataService.show(dataname);
    if (targetdata === null) {
        console.log(dataname);
        throw new Error('数据不存在');
    }

    const targetuser = await User.findByPk(useraccount);
    if(targetuser === null) {
        console.log(useraccount);
        throw new Error('用户不存在');
    }

    const obj = {};
    for(key in evalOpt){
        obj[evalOpt[key]] = index[key];
    }
    obj['comment'] = comment;

    const targetcepingid = await ceping.findOne({
        attributes: ['id'], // 指定返回字段
        where:{
            dataname,
            useraccount
        }
    }); 

    if(targetcepingid === null){    // 添加测评结果
        obj['useraccount'] = useraccount;
        obj['dataname'] = dataname;
        return ceping.create(obj);
    }
    else{//更新测评结果
        return ceping.update(obj,{
            where:{
                dataname,
                useraccount
            }
        });
    }
};

// 删除一条测评(假删除)
exports.destroy = async function (cepingId, useraccount) {
    const target = await ceping.findByPk(cepingId);
    if (target === null || target.useraccount !== useraccount) {
        throw new Error('你无权删除该评论');
    }
    return target.destroy();
};


// 查看指定数据测评列表
exports.listByData = async function(dataname, page, size) {
    return ceping.findAndCountAll({
        where: {dataname},
        offset: (page-1) * size,
        limit: size,
        order: [['id','DESC']]
    })
};

// 查看 指定用户 的 测评列表
exports.listByUser = async function(useraccount, page, size) {
    return ceping.findAndCountAll({
        where: {useraccount},
        offset: (page-1) * size,
        limit: size,
        order: [['id','DESC']]
    })
};

// 查看 指定用户 和 指定数据 的测评结果
exports.listByDataAndUser = async function(dataname, useraccount) {
    return ceping.findOne({
        where:{
            dataname,
            useraccount
        }
    })
}

4、接口测试文件(services/test.js)

对上述三种接口进行测试。

点击查看代码
// service-api 测试文件
const dataService = require('./data');
const UserService = require('./user');
const cepingService = require('./ceping');

// 用户接口测试
async function usertest (d) {
    switch(d){
        case 1:{
            console.log('注册测试');
            const result1 = await UserService.register('zzc12345', '12345678');
            console.log(result1);
        }
        case 2:{
            console.log('登录测试');
            const result2 = await UserService.login('zzc12345', '12345678');
            console.log(result2);
            const result3 = await UserService.login('zzc12345', '12345678');
            console.log(result3);
        }
        case 3:{
            console.log('查看测试');
            const result4 = await UserService.show('zzc12345');
            console.log(result4);
        }
        break;
    }
}

// 数据接口测试
async function datatest (d,obj) {
    switch(d) {
        case 1:{
            console.log('添加数据测试');
            const result1 = await dataService.publish(obj);
            console.log(result1);
        }
        break;
        case 2:{
            console.log('查询一条数据');
            const result2 = await dataService.show('audio_1');
            console.log(result2);
        }
        break;
        case 3:{
            console.log('所有数据')
            const result3 = await dataService.list();
            console.log(result3);
        }
        break;
    }

}


// 测评接口测试
async function cepingtest (d) {
    const index = [1,2,3];
    switch(d) {
        case 1:{
            console.log('添加或更新测试');
            const result1 = await cepingService.publish('audio_1','zzc12345',index);
            console.log(result1);
        }
        break;
        case 2:{
            console.log('假删除测试');
            const result2 = await cepingService.destroy(1, 'zzc12345');
            console.log(result2);
        }
        break;
        case 3:{
            console.log('查看 指定数据 测评列表 测试');
            const result3 = await cepingService.listByData('audio_1', 1, 10);
            console.log(result3);
        }
        break;
        case 4:{
            console.log('查看 指定用户 测评列表 测试');
            const result4 = await cepingService.listByUser('zzc12345', 1, 10);
            console.log(result4);
        }
        break;
        case 5: {
            console.log('查看 指定测评 查询');
            const result5 = await cepingService.listByDataAndUser('audio_1','zzc12345');
            console.log(result5);
        }
        break;
    }
}

obj = [{
    dataname: '3.wav',
    dbname: 'sounds',
    datapath: 'D:\\projects\\vue\\sounds\\3.wav'
  },
  {
    dataname: '1.wav',
    dbname: 'sounds',
    datapath: 'D:\\projects\\vue\\sounds\\1.wav'
  },
  {
    dataname: '4.wav',
    dbname: 'sounds',
    datapath: 'D:\\projects\\vue\\sounds\\4.wav'
  },
  {
    dataname: '2.wav',
    dbname: 'sounds',
    datapath: 'D:\\projects\\vue\\sounds\\2.wav'
  }];

datatest(1,obj);
posted @ 2022-08-28 19:13  小超不挑食  阅读(27)  评论(0编辑  收藏  举报