02-node-elm/controller/promotion/hongbao.js

'use strict'

import HongbaoModel from '../../models/promotion/hongbao'
import BaseComponent from '../../prototype/baseComponent'

class Hongbao extends BaseComponent{
	constructor(){
		super()
		this.getHongbao = this.getHongbao.bind(this);
		this.getExpiredHongbao = this.getExpiredHongbao.bind(this);
	}
	async getHongbao(req, res, next){
		this.hongbaoHandle(req, res, 'intime')
	}
	async getExpiredHongbao(req, res, next){
		this.hongbaoHandle(req, res, 'expired')
	}
	async hongbaoHandle(req, res, type){
		const present_status = type == 'intime'? 1 : 4;
		const user_id = req.params.user_id;
		const {limit = 0, offset = 0} = req.query;
		try{
			if(!user_id || !Number(user_id)){
				throw new Error('user_id参数错误')
			}else if(!Number(limit)){
				throw new Error('limit参数错误')
			}else if(typeof Number(offset) !== 'number'){
				throw new Error('offset参数错误')
			}
		}catch(err){
			console.log(err.message, err);
			res.send({
				status: 0,
				type: 'ERROR_PARAMS',
				message: err.message
			})
			return 
		}
		try{
			const hongbaos = await HongbaoModel.find({present_status}, '-_id').limit(Number(limit)).skip(Number(offset));
			res.send(hongbaos)
		}catch(err){
			console.log('获取红包数据失败');
			res.send({
				status: 0,
				type: 'ERROR_TO_GET_HONGBAO_DATA',
				message: '获取红包数据失败'
			})
		}
	}
}

export default new Hongbao()