💯Go Struct and Field validation, including Cross Field, Cross Struct, Map, Slice and Array diving
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
validator/_examples/custom-validation/main.go

39 lines
716 B

package main
import (
"fmt"
"gopkg.in/go-playground/validator.v9"
)
// MyStruct ..
type MyStruct struct {
String string `validate:"is-awesome"`
}
// use a single instance of Validate, it caches struct info
var validate *validator.Validate
func main() {
validate = validator.New()
validate.RegisterValidation("is-awesome", ValidateMyVal)
s := MyStruct{String: "awesome"}
err := validate.Struct(s)
if err != nil {
fmt.Printf("Err(s):\n%+v\n", err)
}
s.String = "not awesome"
err = validate.Struct(s)
if err != nil {
fmt.Printf("Err(s):\n%+v\n", err)
}
}
// ValidateMyVal implements validator.Func
func ValidateMyVal(fl validator.FieldLevel) bool {
return fl.Field().String() == "awesome"
}