server-v2/app/service/view/student.js

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

// 学生视图接口
class StudentService extends CrudService {
  constructor(ctx) {
    super(ctx, 'lessonprivate');
    this.lessonModel = this.ctx.model.Business.Lesson;
    this.lessonStudentModel = this.ctx.model.Business.LessonStudent;
  }
  async lessonList({ student_id, school_id, skip = 0, limit = 0, ...otherQuery }) {
    // 查出该学生的课表
    const lsList = await this.lessonStudentModel.find({ student_id, school_id }, { lesson_id: 1 });
    const lessonIds = lsList.map(i => i.lesson_id);
    const data = await this.lessonModel.find({ _id: lessonIds, ...otherQuery }).skip(parseInt(skip)).limit(parseInt(limit));
    const total = await this.lessonModel.count({ _id: lessonIds, ...otherQuery });
    return { data, total };
  }
}

module.exports = StudentService;