I spent a good amount of time wrangling with as_json and overriding it
And to answer your question- methods is a good way of including
associations and whatever else you want to define that can be calculated
the model. But, please don’t use as_json unless you really need to.
Note: Mass assignment security (attr_accessible/attr_protected) is going
away in Rails 4. Also, there is a lot wrong with the implementation that
I’d developed that I’m trying to fix now.
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