Golang and Mongodb

MongoDB Mgo

type Person struct {
    Name  string
    Phone string
}

Search One

err = c.Find(bson.M{"name": "馬力"}).One(&result)

Search All in List

   results := []Person{}
    err = c.Find(bson.M{"name": "馬力"}).All(&results)
    if err != nil {
        log.Fatal(err)
    }
    for _, j := range results {
        fmt.Println("Phone:", j.Phone)
        //fmt.Println("Phone:", results)
    }

Sort By TimeStamp (If Have)

err = c.Find(bson.M{"name": "馬力"}).Sort("-timestamp").All(&results)

Seach Pattern

search "台北" as as a search patten.

presult := Person{}
err = c.Find(bson.M{"phone": bson.RegEx{Pattern: "台北", Options: "i"}}).One(&presult)

check Number of search result

num, _ := c.Find(bson.M{"id": searchid}).Count()

Delete Data

c.Remove(bson.M{"id": searchid})

Update Data

updateTarget := bson.M{"id": searchid}
change := bson.M{"$set": bson.M{"phone": "新phone"}}
if err := c.Update(updateTarget, change); err != nil {
    fmt.Println("update error:", err)
}

It update local data, phone, and keep rest of all data.

Drop Database

sDroped := session.DB("test").DropDatabase()