What are some examples of using GORM in Go?

Can you give me some examples of how to use GORM in Go?

Sure! GORM is an ORM library for Go. You can use it to interact with databases easily. For example, to connect to a database, you can use:

import (
    "gorm.io/driver/sqlite"
    "gorm.io/gorm"
)

func main() {
    db, err := gorm.Open(sqlite.Open("test.db"), &gorm.Config{})
    if err != nil {
        panic("failed to connect to the database")
    }
}

What about creating a model and performing CRUD operations?

To create a model, you can define a struct. For example:

type User struct {
    gorm.Model
    Name  string
    Email string
}

To perform CRUD operations, you can use methods like Create, Find, Update, and Delete. For instance:

// Create
db.Create(&User{Name: "John", Email: "[email protected]"})

// Read
var user User
db.First(&user, 1) // find user with id 1

// Update
db.Model(&user).Update("Email", "[email protected]")

// Delete
db.Delete(&user, 1)

Can GORM handle relationships between models?

Yes, GORM can handle relationships! You can define one-to-many, many-to-many, and one-to-one relationships. For example, for a one-to-many relationship:

type Order struct {
    gorm.Model
    UserID uint
    User   User
}

// To create an order for a user:
db.Create(&Order{UserID: user.ID})