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Creating nice diagrams of your Rails apps

Using the plugin railroad, you can create dot diagrams (look it up here) for your applications. I do this quite often to get the whole model or controller scheme more transparent and show off the complexity of the app to the customer (yes yes, it’s so damn impressive ^^).

How to get it:

sudo gem install railroad json

Then use railroad to create a dot diagram (I go for a model diagram here):

raiload -o doc/mymodels.dot -M

Or create a diagram of your controllers with…

railroad -o doc/mycontrollers.dot -a -C

Then, use dot to create a graphic out of it:

dot -Tjpg -o doc/mymodels.jpg doc/mymodels.dot

You can also use -Tsvg (for vector graphics) or -Tpng etc.

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