Copier
I am a copier, I copy everything from one to another
Features
- Copy from field to field with same name
- Copy from method to field with same name
- Copy from field to method with same name
- Copy from slice to slice
- Copy from struct to slice
Usage
package main
import (
"fmt"
"github.com/jinzhu/copier"
)
type User struct {
Name string
Role string
Age int32
}
func (user *User) DoubleAge() int32 {
return 2 * user.Age
}
type Employee struct {
Name string
Age int32
DoubleAge int32
EmployeId int64
SuperRule string
}
func (employee *Employee) Role(role string) {
employee.SuperRule = "Super " + role
}
func main() {
var (
user = User{Name: "Jinzhu", Age: 18, Role: "Admin"}
users = []User{{Name: "Jinzhu", Age: 18, Role: "Admin"}, {Name: "jinzhu 2", Age: 30, Role: "Dev"}}
employee = Employee{}
employees = []Employee{}
)
copier.Copy(&employee, &user)
fmt.Printf("%#v \n", employee)
// Employee{
// Name: "Jinzhu", // Copy from field
// Age: 18, // Copy from field
// DoubleAge: 36, // Copy from method
// EmployeeId: 0, // Ignored
// SuperRule: "Super Admin", // Copy to method
// }
// Copy struct to slice
copier.Copy(&employees, &user)
fmt.Printf("%#v \n", employees)
// []Employee{
// {Name: "Jinzhu", Age: 18, DoubleAge: 36, EmployeId: 0, SuperRule: "Super Admin"}
// }
// Copy slice to slice
employees = []Employee{}
copier.Copy(&employees, &users)
fmt.Printf("%#v \n", employees)
// []Employee{
// {Name: "Jinzhu", Age: 18, DoubleAge: 36, EmployeId: 0, SuperRule: "Super Admin"},
// {Name: "jinzhu 2", Age: 30, DoubleAge: 60, EmployeId: 0, SuperRule: "Super Dev"},
// }
}
Contributing
You can help to make the project better, check out http://gorm.io/contribute.html for things you can do.
Author
jinzhu
License
Released under the MIT License.