service-center/app/service/class.js

'use strict';


const assert = require('assert');
const _ = require('lodash');
const { ObjectId } = require('mongoose').Types;
const { CrudService } = require('naf-framework-mongoose/lib/service');
const { BusinessError, ErrorCode } = require('naf-core').Error;

class ClassService extends CrudService {
  constructor(ctx) {
    super(ctx, 'class');
    this.model = this.ctx.model.Class;
    this.stumodel = this.ctx.model.Student;
    this.lessmodel = this.ctx.model.Lesson;
    this.umodel = this.ctx.model.User;
    this.tmodel = this.ctx.model.Trainplan;
    this.gmodel = this.ctx.model.Group;
  }

  async divide(data) {
    const { planid, termid } = data;
    assert(planid, '计划id为必填项');
    assert(termid, '期id为必填项');
    // 根据计划id与期id查询所有批次下的班级
    const newclass = await this.model.find({ planid, termid });
    if (!newclass) {
      throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '班级信息不存在');
    }
    // 根据计划和期查询所有上报的学生 并按照学校排序
    const newstudent = await this.stumodel.find({ termid }).sort({ schid: 1 });
    if (!newstudent) {
      throw new BusinessError(ErrorCode.DATA_NOT_EXIST, '学生信息不存在');
    }
    let _students = _.map(newstudent, 'id');
    for (const _class of newclass) {
      // 取得班级人数
      const stunum = _class.number;
      // 取出班级人数下的学生id
      const beforestu = _.take(_students, stunum);
      // 将取出的数据调用更新学生的班级信息方法
      await this.studentup(_class.id, _class.batchid, beforestu);
      // 将班级自动分为组
      await this.groupcreate(termid, _class.batchid, _class.id);
      // 取出的学生数据从原数据中删除
      _students = _.difference(_students, beforestu);
    }
  }

  // 根据传入的学生列表和班级id更新学生信息
  async studentup(classid, batchid, beforestu) {
    // 循环学生id
    for (const stuid of beforestu) {
      const student = await this.stumodel.findById(stuid);
      if (student) {
        student.classid = classid;
        student.batchid = batchid;
        await student.save();
      }
    }
  }

  // 自动分组
  async groupcreate(termid, batchid, classid) {
    const group = await this.gmodel.find({ termid, batchid, classid });
    if (group.length === 0) {
      for (let i = 1; i < 8; i++) {
        const name = i + '组';
        const newdata = { name, termid, batchid, classid };
        await this.gmodel.create(newdata);
      }
    }
  }

  // 根据传入的学生列表和班级id更新学生信息
  async studentupclass({ id }, data) {
    assert(id, '班级id为必填项');
    // 循环学生id
    for (const stuid of data) {
      const student = await this.stumodel.findById(stuid);
      if (student) {
        student.classid = id;
        await student.save();
      }
    }
  }

  async notice(data) {
    for (const classid of data.classids) {
      // 根据班级id找到需要通知的班级
      const _class = await this.model.findById(classid);
      const { headteacherid } = _class;
      // 根据班级id找到对应的课程表
      const lesson = await this.lessmodel.findOne({ classid });
      if (lesson) {
        const lessons = lesson.lessons;
        const remark = '感谢您的使用';
        const date = await this.ctx.service.util.updatedate();
        const detail = '班级各项信息已确认，请注意查收';
        // 遍历班级授课教师发送通知
        for (const lessoninfo of lessons) {
          const teaid = lessoninfo.teaid;
          const _teacher = await this.umodel.findOne({ uid: teaid, type: '3' });
          if (_teacher) {
            const teaopenid = _teacher.openid;
            this.ctx.service.weixin.sendTemplateMsg(this.ctx.app.config.REVIEW_TEMPLATE_ID, teaopenid, '您有一个新的通知', detail, date, remark, classid);
          }
        }
        // 给班主任发送通知
        const _headteacher = await this.umodel.findOne({ uid: headteacherid, type: '1' });
        if (_headteacher) {
          const headteaopenid = _headteacher.openid;
          this.ctx.service.weixin.sendTemplateMsg(this.ctx.app.config.REVIEW_TEMPLATE_ID, headteaopenid, '您有一个新的通知', detail, date, remark, classid);
        }

        // 根据班级的期id查询对应的培训计划
        const trainplan = await this.tmodel.findOne({ 'termnum._id': _class.termid });
        const term = await trainplan.termnum.id(_class.termid);
        const batch = await term.batchnum.id(_class.batchid);
        const startdate = batch.startdate;
        const classname = _class.name;
        // 给班级所有学生发送邮件通知
        const students = await this.stumodel.find({ classid });
        for (const student of students) {
          const { email, name } = student;
          const subject = '吉林省高等学校毕业生就业指导中心通知';
          const text = name + '您好！\n欢迎参加由吉林省高等学校毕业生就业指导中心举办的“双困生培训会”。\n您所在的班级为：' + classname + '\n班级开课时间为：' + startdate;
          this.ctx.service.util.sendMail(email, subject, text);
        }
      }
    }
  }

  async uptea(data) {
    for (const _data of data) {
      const classInfo = await this.model.findById(_data.id);
      classInfo.headteacherid = _data.headteacherid;
      await classInfo.save();
    }
  }

  async searchDate({ classid }) {
    const classInfo = await this.model.findById(classid);
    const trainplan = await this.tmodel.findById(classInfo.planid);
    if (trainplan) {
      const term = _.filter(trainplan.termnum, item => item.id === classInfo.termid);
      if (term.length > 0) {
        const batch = _.filter(term[0].batchnum, item => item.id === classInfo.batchid);
        if (batch.length > 0) {
          return { startdate: batch[0].startdate, enddate: batch[0].enddate };
        }
      }
    }
  }
}

module.exports = ClassService;