optimized_go_tools/am_docs/mongo.md

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2024-07-31 02:05:47 +00:00
# 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
```go
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
```go
type User struct {
Name string `bson:"name"`
Age int `bson:"age"`
Email string `bson:"email"`
}
mongodb.CreateUniqueIndex("testCollection", "email")
```
### CRUD
#### 插入
```go
var user = User{
Name: "Joe Biden",
Age: 82,
Email: "heyjoebiden@gmail.com"
}
err := mongodb.Insert("testCollection", &user)
```
#### 查询
```go
// 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
```go
var filter = bson.M{"email": "heyjowbiden@gmail.com"}
var update = bson.M{"name": "Donald J Trump"}
err := mongodb.Update("testCollection", filter, update)
```
#### 删除
```go
var filter = bson.M{"email": "heyjowbiden@gmail.com"}
err := mongodb.Delete(filter)
```