This is the code used for chapter 07 - Data Visualization.

As usual the Flex application can be found under /flex/src and the Rails application under the /rails folder.

The Rails application is an extension of the application found in 03_Flex_with_RESTful_Services/rails. I've tagged all 
new and changed functionality in the source code with the NEW: keyword to provide an overview of the changed 
functionality.. 

The Rails application requires the hpricot and yahoofinance gem. Install them before starting the server.

  gem install hpricot
  sudo gem install yahoofinance

To read more on hpricot, see  
    http://code.whytheluckystiff.net/hpricot/wiki/InstallingHpricot

This chapter provides two Flex applications:
  TwoDimension.mxml - Various OLAP queries shown in the first part of the chapter.
  StockPortfolio.mxml - The main stock portfolio application build in this chapter. This application is made of the 
  following components under the src/views folder:
      PortfolioSummary.mxml - demonstrate use of OLAPDataGrid
      PositionList.mxml - demonstrate use of AdvancedDataGrid
      PositionChart.mxml - shows use of PieChart
      HistoricalPrices.mxml - shows use of HLOCChart