service-count/app/service/comment.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 CommentService extends CrudService {
  constructor(ctx) {
    super(ctx, 'comment');
    this.model = this.ctx.model.Comment;
    this.umodel = this.ctx.model.User;
    this.nmodel = this.ctx.model.News;
  }

  async query({ skip, limit, ...info }) {
    const total = await (await this.model.find(info)).length;
    const comments = await this.model
      .find(info)
      .skip(Number(skip))
      .limit(Number(limit));
    const newdatas = [];
    for (let comment of comments) {
      comment = JSON.parse(JSON.stringify(comment));
      const user = await this.umodel.findById(comment.uid);
      const news = await this.nmodel.findById(comment.newsid);
      comment.nname = news.title;
      comment.uname = user.name;
      newdatas.push(comment);
    }
    return { data: newdatas, total };
  }

  async fetch({ id }) {
    let comment = await this.model.findById(id);
    comment = JSON.parse(JSON.stringify(comment));
    const user = await this.umodel.findById(comment.uid);
    const news = await this.nmodel.findById(comment.newsid);
    comment.nname = news.title;
    comment.uname = user.name;
    return comment;
  }
}

module.exports = CommentService;