fix the app because the blog post is wrong?

app/repositories/players.rb

@@ -0,0 +1,17 @@
+require 'rom-repository'
+
+module EuchreCamp
+  module Repositories
+    class Players < ::EuchreCamp::Repository[:players]
+      commands :create, update: :by_pk, delete: :by_pk
+
+      def all
+        players.to_a
+      end
+
+      def by_id(id)
+        players.by_pk(id).one!
+      end
+    end
+  end
+end