var mongoose = require('mongoose')

mongoose.connect('mongodb://localhost:27017/hometown',{useMongoClient: true});

var db = mongoose.connection;

db.on('error', console.error.bind(console, 'connection error:'));

db.once('open', function (callback) {

  console.log('db service connected.')

});

//set schema

var blogSchema = new mongoose.Schema({

    article_id: {type:Number,default:0},

      title: String,

      detail: String,

      img: String,

      view: {type:Number,default:0}

});

//pub model

var blogModel = db.model('towntrip',blogSchema);

blogModel.find(function(err,articles){ //find({},fn)

    res.render('index', {title:'Home Town',articles:articles})

})

//add data

//var data = new blogModel({title:'Guanyin Mountain',detail:'With history culture,Guanyin Mountain is known for so many years.',img:'upload/img/a2.jpg',view:0})

//data.save()

//update data

//blogModel.update({_id:'5850c66834d5c51918f04d4c'},{$set:{view:1}},function(err){});