How do you discover model attributes in Rails?

There is a rails plugin called Annotate models, that will generate your model attributes on the top of your model files here is the link:

https://github.com/ctran/annotate_models

to keep the annotation in sync, you can write a task to re-generate annotate models after each deploy.

For Schema related stuff

Model.column_names         
Model.columns_hash         
Model.columns

For instance variables/attributes in an AR object

object.attribute_names                    
object.attribute_present?          
object.attributes

For instance methods without inheritance from super class

Model.instance_methods(false)

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