mongoose 数据库总结
2016-09-30 本文已影响47人
梁同桌
我自己测试模板代码
var mongoose = require('mongoose')
var mongodb = 'mongodb://localhost/root/data/db'
mongoose.Promise = global.Promise
var db = mongoose.connect(mongodb);
//生成model
var BookSchema = new mongoose.Schema({
name: String,
author: String,
newTime: Date
})
//关联model
mongoose.model('Book', BookSchema)
//-------------------------------------------------------------------
//生成model
var Book = mongoose.model("Book")
//填写数据
var book = new Book({
name: "MEAN Web Development",
author: "liang",
newTime: new Date()
})
book.save(function(err){
console.log('save status:', err ? 'failed' : 'success')
})
Book.find({},function(err,data){
if(err){
console.log(err)
return
}
console.log(data)
console.log("find success")
})
Book.findOne({author:"liang"},function(err, data){
if(err){
console.log(err)
return
}
console.log(data)
})
//可以用于唯一ID查询
Book.findOne({author:"liang"},function(err, data){
if(err){
console.log(err)
return
}
if(data){
data.remove()
}
console.log(data)
})
//多条件查询 or或 and全部满足
var cond = {
$or:[
{author: 'Jane'},
{author: 'lin'}
]
}
Book.find(cond, function(err,data){
if(err){
console.log(err)
return
}
console.log(data)
})
