Fix Hakiri issues

app/controllers/api/v1/events_controller.rb

@@ -4,9 +4,9 @@ module Api
       respond_to :json
 
       def index
-        events = Event.includes(:conference, :track, :room, :event_type, event_user: :user)
+        events = Event.includes(:conference, :track, :room, :event_type, event_users: :user)
         unless params[:conference_id].blank?
-          events = events.where('conferences.guid' => params[:conference_id])
+          events = events.where(conferences: { guid: params[:conference_id] })
         end
         respond_with events.confirmed
       end

app/controllers/api/v1/speakers_controller.rb

@@ -8,9 +8,9 @@ module Api
           users = User.joins(:event_users)
         else
           users = User.joins(event_users: { event: :conference })
-          users = users.where('conferences.guid' => params[:conference_id])
+          users = users.where(conferences: { guid: params[:conference_id] })
         end
-        users = users.where('event_users.event_role' => 'speaker')
+        users = users.where(event_users: {event_role: :speaker})
         render json: users, each_serializer: SpeakerSerializer
       end
     end

app/controllers/api/v1/tracks_controller.rb

@@ -8,7 +8,7 @@ module Api
           tracks = Track.all
         else
           tracks = Track.joins(:conference)
-          tracks = tracks.where("conferences.guid" => params[:conference_id])
+          tracks = tracks.where(conferences: { guid: params[:conference_id] })
         end
         respond_with tracks
       end