Flex For Rails Scaffold

I’ve written a little component for connecting flex with rails scaffold as close as possible.

Step 1: Create a scaffold for Card

Within your rails application run the script:

./script/generate scaffold card id:integer timeStamp:timestamp data:text

(data types with Ruby and mySQL)


Step 2: Change the Card controller


Edit the Card Controller found at: myApp/app/controllers/cards_controller.rb and remove all view elements. this will make the controller omit pure XML structures


should result with the controller looking like:


class CardsController < ApplicationController
  # GET /cards
  # GET /cards.xml
  def index
    @cards = Card.all
    render :xml => @cards
  end

  # GET /cards/1
  # GET /cards/1.xml
  def show
    @card = Card.find(params[:id])
    render :xml => @card
  end


  # GET /cards/new
  # GET /cards/new.xml
  def new
    @card = Card.new
    render :xml => @card
  end


  # GET /cards/1/edit
  def edit
    @card = Card.find(params[:id])
    render :xml => @card
  end


  # POST /cards
  # POST /cards.xml
  def create
    @card = Card.new(params[:card])
    if @card.save
      render :xml => {:notice => 'Card was successfully updated.'}
    else
      render :xml => {:notice => @card.errors}
    end

  end


  # PUT /cards/1
  # PUT /cards/1.xml
  def update
    @card = Card.find(params[:id])

    if @card.update_attributes(params[:card])
      render :xml => {:notice => 'Card was successfully updated.'}
    else
      render :xml => {:notice => @card.errors}
    end

  end


  # DELETE /cards/1
  # DELETE /cards/1.xml
  def destroy
    @card = Card.find(params[:id])
    @card.destroy
    render :xml => {:notice => 'Card was successfully updated.'}

  end
end


Step 3: Client Side


To connect to the Rails server use an intermediate adapter called ActiveResourceClient.as

For testing, use the ServiceTester.mxml


good luck

Passing a Byte Array through JSON

Its a well known issue when communicating complex structures between client and server, using the JSON encoding.
I've encountered it when attempting to transfer an encrypted Byte Array back and forth between a client and server, that communicate via JSON.

What doesn't work:
Base64 encodings and conversions to string formats

What does work:
Converting the Byte[] to a number array and back

Here is an example code in Flex (works just as well in Java / PHP / Python etc)

Independent on Sundays