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资源说明：A very basic Ruby on Rails 3.2.9 application to demonstrate how to use a canvas graph (powered by Springy by dhotson) with Ruby to represent Rails' ActiveRecord associations.
#SpringyRailsDemo This is a very basic Ruby on Rails 3.2.9 app to demonstrate how to use a canvas network graph with Ruby to represent Rails' ActiveRecord associations. The JavaScript data model to store the graph nodes, the HTML5 canvas drawing code (with a couple of edits), and everything else canvas-related is taken from the excellent [Springy Algorithm](https://github.com/dhotson/springy) by Dennis Hotson. This demo is meant as an example of how to transform your models and your associations into a set of variables you can work with, and how to integrate these variables with the drawing Javascript code in the view. The random names are provided by the [Faker Gem](http://faker.rubyforge.org/) by Benjamin Curtis. ##Partials Partials for the **has\_and\_belongs\_to\_many** and the **has_many :through** associations are kept separate to make it easier to see how they work. They are quite similar though, and it would be easy to use just one partial with a couple of conditional statements. ##Demo You can see it in action [here](http://springyrailsdemo.herokuapp.com/). It's on the Heroku free plan, so be patient if it takes a few seconds to wake up.
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