optimized_go_tools/am_docs/mongo.md

MongoDB 操作工具包

用于操作MongoDB，简化开发流程。要使用此工具包，你的MongoDB必须已经开启访问控制。

使用方法

连接数据库

var mongodb = am_mongo.MongoDB{
	Host: "127.0..0.1",
	Port: "27017",
	Username: "root",
	Password: "1234567"
}

err := mongodb.Connect("testdb")

defer am_mongo.Close()

创建Model和唯一索引

type User struct {
	Name  string `bson:"name"`
	Age   int    `bson:"age"`
	Email string `bson:"email"`
}

mongodb.CreateUniqueIndex("testCollection", "email")

CRUD

插入

var user = User{
	Name: "Joe Biden",
	Age: 82,
	Email: "heyjoebiden@gmail.com"
}
err := mongodb.Insert("testCollection", &user)

查询

// 条件查询
var filter = bson.M{"email": "heyjowbiden@gmail.com"}
var results []User

err := mongodb.Find("testCollection", filter, &results)

// 全数查询
err = mongodb.Find("testCollection", bson.M{}, &results)

修改

var filter = bson.M{"email": "heyjowbiden@gmail.com"}
var update = bson.M{"name": "Donald J Trump"}
err := mongodb.Update("testCollection", filter, update)

删除

var filter = bson.M{"email": "heyjowbiden@gmail.com"}
err := mongodb.Delete(filter)