magazine-service/service-journal/app/service/catalogue.js

'use strict';

const assert = require('assert');
const Service = require('egg').Service;
class CatalogueService extends Service {
  constructor(ctx) {
    super(ctx);
    this.model = this.ctx.model.Catalogue;
  }
  async create({ content, name, describe, status, url, date, column, bind }) {
    assert(name, '名称不存在');
    assert(date, '发布时间不存在');
    assert(status, '状态不存在');
    assert(bind, '绑定ID不存在');
    try {
      const res = await this.model.create({ content, name, describe, status, url, date, column, bind });
      return { errcode: 0, errmsg: 'ok', data: res };
    } catch (error) {
      throw error;
    }
  }
  async update({ id, content, name, describe, status, url, date, column, bind }) {
    assert(id, 'id不存在');
    try {
      await this.model.updateOne({ _id: id }, { content, name, describe, status, url, date, column, bind });
      return { errcode: 0, errmsg: 'ok', data: '' };
    } catch (error) {
      throw error;
    }
  }
  async delete({ id }) {
    assert(id, 'id不存在');
    try {
      await this.model.deleteOne({ _id: id });
      return { errcode: 0, errmsg: 'ok', data: '' };
    } catch (error) {
      throw error;
    }
  }
  async query({ skip, limit, name, status, date, column, bind }) {
    const filter = {};
    const arr = { name, status, date, column, bind };
    for (const e in arr) {
      const data = `{ "${e}": { "$regex": "${arr[e]}" } }`;
      if (arr[e]) {
        filter.$or = [];
        filter.$or.push(JSON.parse(data));
      }
    }
    try {
      const total = await this.model.find({ ...filter });
      let res;
      if (skip && limit) {
        res = await this.model.find({ ...filter }, { content: false, url: false }).skip(Number(skip) * Number(limit)).limit(Number(limit));
      } else {
        res = await this.model.find({ ...filter }, { content: false, url: false });
      }
      return { errcode: 0, errmsg: 'ok', data: res, total: total.length };
    } catch (error) {
      throw error;
    }
  }
  async fetch({ id }) {
    assert(id, 'id不存在');
    try {
      const res = await this.model.findOne({ _id: id });
      return { errcode: 0, errmsg: 'ok', data: res };
    } catch (error) {
      throw error;
    }
  }
}

module.exports = CatalogueService;