Playframework form and two submit buttons

Question

I had form for editing order but I had to add button for removing order. Now I have form with two submit buttons:

@helper.form(routes.Order.editOrder,'class -> "form-horizontal") {
   @helper.inputText(
      PlayMagicForJava.javaFieldtoScalaField(editOrderForm("date")),
      '_label -> "Date:",
      '_help -> ""
   )
   @helper.inputText(
      PlayMagicForJava.javaFieldtoScalaField(editOrderForm("place_from")),
      '_label -> "From:",
      '_help -> ""
   )
   <button type="submit" name="edit" id="edit" class="btn btn-primary">Edit Order</button>
   <button type="submit" name="remove" id="remove" value="remove" class="btn">Remove order</button>
}

My function in controler for form just for editing:

public static Result editOrder(){
 Order user = User.findByEmail(session("email"));
 Form<Order> editOrderFormFilled = editOrderForm.bindFromRequest();
 Order order = Order.findByID(editOrderFormFilled.get().id);
     if(editOrderFormFilled.hasErrors()) {
         return badRequest();
     }
     else if(user.id != order.created_by){
         return badRequest();
     }else{
        return OK();
     }
 }

How can I handle which button was submited?

Answer 1

The value property of the selected button is sent to the server as any other fields. So, inside your controller, you can access this value in the request body and decide what to do.

Template:

<button type="submit" name="action" value="edit">Edit order</button>
<button type="submit" name="action" value="remove">Remove order</button>

Controller:

public static Result myAction() {
  String[] postAction = request().body().asFormUrlEncoded().get("action");
  if (postAction == null || postAction.length == 0) {
    return badRequest("You must provide a valid action");
  } else {
    String action = postAction[0];
    if ("edit".equals(action)) {
      return edit(request());
    } else if ("remove".equals(action)) {
      return remove(request());
    } else {
      return badRequest("This action is not allowed");
    }
  }
}

private static Result remove(Request request) {
  // TODO
  return ok("implement your business here");
}

private static Result edit(Request request) {
  // TODO
  return ok("implement your business here");
}

Answer 2

To complemente Julien Lafont's answer, here is what you could do in a Scala Controller:

def handle = Action { implicit request => 
  request.body.asFormUrlEncoded.get("action").headOption match {
    case Some("edit") => Ok("Clicked edit")
    case Some("remove") => Ok("Clicked remove")
    case _ => BadRequest("This action is not allowed")
  }
}