So, ActiveRecord models have a built in [`to_json`](http://apidock.com/rails/ActiveRecord/Serialization/to_json) method that can do a lot of this kind of heavy lifting. By default, it does pretty much exactly what you have here... so you could do something like

```ruby
get '/everything' do
    { 'Committee' => Committee.all,
      'Contribution' => Contribution.all,
      [...]
    }.to_json
end
```

...but this will get even simpler when the simplification of the schema (#51) is merged. (Tomorrow night?)