magazine-service/service-cms/app/service/imgnews.js

'use strict';

const assert = require('assert');
const moment = require('moment');
const Service = require('egg').Service;
class ImgnewsService extends Service {
  constructor(ctx) {
    super(ctx);
    this.model = this.ctx.model.Imgnews;
    this.column = this.ctx.model.Column;
    this.pages = this.ctx.model.Pages;
  }
  async create({ type, bind, date, img, url, column, pages, title }) {
    assert(type, '类型不存在');
    assert(bind, '绑定类型不存在');
    assert(img, '图片不存在');
    assert(title, '图片不存在');
    try {
      const createAt = moment().format('x');
      const updateAt = moment().format('x');
      const item = await this.model.create({ title, type, bind, date, img, url, column, pages, createAt, updateAt });
      return { errcode: 0, errmsg: '', data: item };
    } catch (error) {
      throw error;
    }
  }
  async update({ id, type, bind, date, img, url, column, pages, title }) {
    assert(id, 'id不存在');
    try {
      const res = await this.model.findOne({ _id: id });
      if (!res) return { errcode: -1001, errmsg: '数据不存在', data: '' };
      const updateAt = moment().format('x');
      await this.model.updateOne({ _id: id }, { title, type, bind, date, img, url, column, pages, updateAt });
      return { errcode: 0, errmsg: '', data: 'update' };
    } catch (error) {
      throw error;
    }
  }
  async delete({ id }) {
    assert(id, 'id不存在');
    try {
      const res = await this.model.findOne({ _id: id });
      if (!res) return { errcode: -1001, errmsg: '数据不存在', data: '' };
      await this.model.remove({ _id: id });
      return { errcode: 0, errmsg: '', data: 'delete' };
    } catch (error) {
      throw error;
    }
  }
  async query({ skip, limit, title, date, bind }) {
    const filter = {};
    if (title || date || bind) filter.$or = [];
    if (title) filter.$or.push({ code: { $regex: title } });
    if (date) filter.$or.push({ date: { $regex: date } });
    if (bind) filter.$or.push({ bind: { $regex: bind } });
    try {
      let res;
      const total = await this.model.find({ ...filter }, { content: false });
      if (skip && limit) {
        res = await this.model.find({ ...filter }, { content: false })
          .skip(Number(skip) * Number(limit))
          .limit(Number(limit))
          .sort({ date: 1 });
      } else {
        res = await this.model.find({ ...filter }, { content: false }).sort({ date: 1 });
      }
      return { errcode: 0, errmsg: '', data: res, total: total.length };
    } catch (error) {
      throw error;
    }
  }
  async fetch({ id }) {
    try {
      const res = await this.model.findOne({ _id: id });
      if (!res) return { errcode: -1001, errmsg: '数据不存在', data: '' };
      return { errcode: 0, errmsg: '', data: res };
    } catch (error) {
      throw error;
    }
  }
}

module.exports = ImgnewsService;