Editing a form

Application.java

package controllers;

import com.fasterxml.jackson.databind.ObjectMapper;
import models.Computer;
import play.mvc.*;
import play.data.Form;
import java.util.Map;


public class Application extends Controller {

    private static Form<Computer> form = Form.form(Computer.class);
    private static  ObjectMapper mapper = new ObjectMapper();


    public static Result create() {
        Form<Computer> computerForm = form.bindFromRequest();
        if(computerForm.hasErrors()) {
            return badRequest(computerForm.errorsAsJson());
        } else {
            return ok("computer created successfully");
        }
    }

    public static Result edit() {
        Computer c = new Computer();
        c.description = "foo";
        c.name = "bar";
        c.id = 101L;

        final Form<Computer> edit = editableForm(c);
        if(edit.hasErrors()) {
            return badRequest(edit.errorsAsJson());
        } else {
            Computer edited = edit.get();
            return ok("Success fully edited " + edited.name);
        }
    }


    private static Form<Computer> editableForm(final Computer obj) {
        Map<String,String> data = mapper.convertValue(obj, Map.class);
        Map<String, String> submittedData = form.bindFromRequest().data();
        data.putAll(submittedData);
        return form.bind(data);
    }
}