I am new to Go and am unsure about how to approach this problem. In OOP terms, I have a base class of Animal and two subclasses of Cat and Dog. I want to specify a ToJson method for Animal which will work for all animals.
My problem is that when I call dog.ToJson() I only get the Dog properties of dog and none of the Animal properties.
How can I make ToJson work as expected (ie with recursion)?
edit: Changed code to reflect suggestions in answer by lbonn, which I could not get to work how I want it to. edit2: consistency in question following code change
package main
import (
"encoding/json"
"fmt"
)
type Animal struct {
Name string
}
type Cat struct {
CatProperty int64
Animal
}
type Dog struct {
DogProperty int64
Animal
}
func ToJson(i interface{}) []byte {
data,err := json.Marshal(i)
if err != nil {
panic("???")
}
return data
}
func main() {
dog := Dog{}
dog.Name = "rex"
dog.DogProperty = 2
fmt.Println(string(ToJson(dog)))
// Prints {"DogProperty":2}
// I want it to print {"Name":"rex","DogProperty":2}
}
