iOS Components and Frameworks: Understanding the Advanced Features of the iOS SDK

Device Controller

You have to make a few small modifications to the default controller for devices to make sure that it will work for our purposes. In app/controllers/devices_controller.rb, you need to update the create method. First, you need to reformat the token data sent to us from the device, because it will contain chevron brackets ("<" and ">"). This approach will just remove the brackets from the data.

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deviceInfo = params[:device]deviceInfo[:token] = deviceInfo[:token].sub("<","")deviceInfo[:token] = deviceInfo[:token].sub(">","")

Next, the create method built by Rails assumes that you will create a new record only when a POST is received. The logic needs to be able to handle new devices, and updates to ...