Feedback

Again, I'm not actually suggesting that you merge this in and remove all your code. This just makes it easier to leave feedback :smile: 

Please submit a help request for any questions that you have about my comments.

### Don't merge this pull request
This line is unnecessary. The result of a query with pg will return a PG::Result object, which mixes in the [Enumerable](http://ruby-doc.org/core-2.1.2/Enumerable.html) module, which means that it acts very much the same as an array. You can use any enumerable methods with it (like .each .map .first etc)