Merge 8fb852c1c4 into a9581445f3

app/models/ability.rb

@@ -129,6 +129,10 @@ class Ability
   def signed_in(user)
     guest # Inherits abilities of guest
 
+    # Can subscribe, unsubscribe to a conference
+    can :subscribe, Conference
+    can :unsubscribe, Conference, id: user.subscriptions.pluck(:conference_id)
+
     # Conference Registration
     can :manage, Registration, user_id: user.id