在Laravel中使用ajax发布表单

Question

I know this question has been out there many times, however I am unable to get through this.

Here is my route:

Route::post('/masters/board/edit', 'MastersController@editBoard');

My Controller:

public function editBoard() {
        $board = Board::findOrFail(Input::get('id'));
        $board->nick_name        = Input::get('nick_name');
        $board->board_name        = Input::get('board');
        $board->type                        = Input::get('type');
        $board->save();

        return Redirect::action('MastersController@getBoards');
    }

My JS:

$("#edit_form").submit(function(e) {
    e.preventDefault();

    var type = "#edit_form";

    var formData = {
          id : $(type + " #id").val(),
          nick_name : $(type + " #nick_name").val(),
          name : $(type + " #board").val()
      }

    $.ajax({
      type: "POST",
      url: "masters/board/edit",
      data: formData,
      success: function(data) {
        console.log(data);
      }
    });
  });
});

This is throwing an error:

[Error] Failed to load resource: the server responded with a status of 500 (Internal Server Error) (edit, line 0)

Can anyone see a reason why?