package util

import (
	"reflect"
)

func GetStructFieldByJsonTag(obj interface{}, tag string) (field reflect.StructField, ok bool) {
	t := reflect.TypeOf(obj)
	v := reflect.ValueOf(obj)
	if v.Kind() == reflect.Ptr {
		t = t.Elem()
	}

	for i := 0; i < t.NumField(); i++ {
		field = t.Field(i)
		tagName := field.Tag.Get("json")
		if tagName == tag {
			ok = true
			return
		}
	}
	return
}