curl log

Started POST "/devices.json" for 127.0.0.1 at 2011-11-01 13:49:16 -0400
  Processing by DevicesController#create as JSON
  Parameters: {"{device: { identifier: 12345567891, registration: 234332 } }"=>nil}
  AREL (0.6ms)  INSERT INTO "devices" ("identifier", "registration", "created_at", "updated_at") VALUES (NULL, NULL, '2011-11-01 17:49:16.522201', '2011-11-01 17:49:16.522201')
Completed 201 Created in 25ms (Views: 2.8ms | ActiveRecord: 0.6ms)

DevicesController

class DevicesController < ApplicationController
  # GET /devices
  # GET /devices.xml
  def index
    @devices = Device.all

    respond_to do |format|
      format.html # index.html.erb
      format.xml  { render :xml => @devices }
      format.json { render :json => @devices}
    end
  end

  def find_by_identifier
    @device = Device.find(params[:identifier])
    respond_to do |format|
      format.html # show.html.erb
      format.xml  { render :xml => @device }
      format.json { render :json => @device}

    end
  end

  # GET /devices/1
  # GET /devices/1.xml
  def show
    @device = Device.find(params[:id])

    respond_to do |format|
      format.html # show.html.erb
      format.xml  { render :xml => @device }
      format.json { render :json => @device}

    end
  end

  # GET /devices/new
  # GET /devices/new.xml
  def new
    @device = Device.new

    respond_to do |format|
      format.html # new.html.erb
      format.xml  { render :xml => @device }
      format.json { render :json => @device}

    end
  end

  # GET /devices/1/edit
  def edit
    @device = Device.find(params[:id])
  end

  # POST /devices
  # POST /devices.xml
  def create
    @device = Device.new(params[:device])

    respond_to do |format|
      if @device.save
        format.html { redirect_to(@device, :notice => 'Device was successfully created.') }
        format.xml  { render :xml => @device, :status => :created, :location => @device }
        format.json  { render :json => @device, :status => :created, :location => @device }

      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @device.errors, :status => :unprocessable_entity }
        format.json  { render :json => @device.errors, :status => :unprocessable_entity }
      end
    end
  end

  # PUT /devices/1
  # PUT /devices/1.xml
  def update
    @device = Device.find(params[:id])

    respond_to do |format|
      if @device.update_attributes(params[:device])
        format.html { redirect_to(@device, :notice => 'Device was successfully updated.') }
        format.xml  { head :ok }
        format.json  { head :ok }
      else
        format.html { render :action => "edit" }
        format.xml  { render :xml => @device.errors, :status => :unprocessable_entity }
        format.json  { render :json => @device.errors, :status => :unprocessable_entity }

      end
    end
  end

  # DELETE /devices/1
  # DELETE /devices/1.xml
  def destroy
    @device = Device.find(params[:id])
    @device.destroy

    respond_to do |format|
      format.html { redirect_to(devices_url) }
      format.xml  { head :ok }
      format.json {head :ok}
    end
  end
end

gistfile1.txt

ActiveRecord::Schema.define(:version => 20111031200340) do

  create_table "devices", :force => true do |t|
    t.string   "identifier"
    t.string   "registration"
    t.datetime "created_at"
    t.datetime "updated_at"
  end

end

post log

Started POST "/devices" for 127.0.0.1 at 2011-11-01 13:45:36 -0400
  Processing by DevicesController#create as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"L1UzbLkj4iuYr+ITdbUg9uwb63jqjFmfF54luh5w1A0=", "device"=>{"identifier"=>"fooo", "registration"=>"baaar"}, "commit"=>"Create Device"}
  AREL (1.1ms)  INSERT INTO "devices" ("identifier", "registration", "created_at", "updated_at") VALUES ('fooo', 'baaar', '2011-11-01 17:45:36.053288', '2011-11-01 17:45:36.053288')
Redirected to http://localhost:3000/devices/24
Completed 302 Found in 21ms

server log

Started GET "/devices/24" for 127.0.0.1 at 2011-11-01 13:45:36 -0400
  Processing by DevicesController#show as HTML
  Parameters: {"id"=>"24"}
  Device Load (0.2ms)  SELECT "devices".* FROM "devices" WHERE "devices"."id" = 24 LIMIT 1
Rendered devices/show.html.erb within layouts/application (9.9ms)
Completed 200 OK in 20ms (Views: 14.6ms | ActiveRecord: 1.3ms)