Question

I’m having an issue performing a query for only objects that are active. I do not have an active column in the database, instead, on a model Game, I have the following method:

def complete?
  self.winner ? true : false
end

That way if a Game has a Winner, #complete? will return true. I want to query for all Games that would return false for this method, is there a way to do this with ActiveRecord? Right now in my controller I’m simply calling @games = Game.all, and then in my partial rendering games like:

<% unless game.complete? %>
yada yada
<% end %>

This seems kind of hacky, and would require me to write a different partial if I want to display “completed” games. Anyway, I was wondering if there is a way in the controller to only assign objects that would return true/false from a model method?

Answer 1

What about a fast and easy class method?

class Game < ActiveRecord::Base
    def self.completed_games
        games = []
        Game.all.each { |game| games << game if game.complete? }
        return games
    end
end

Then call Game.completed_games. You can make one for incomplete games too. You can make that method one line too, but I broke it up so you can see exactly what’s going on.