How to: Write your own serializer - heartcombo/devise GitHub Wiki
To create your own serializer, just change this:
config.warden do |manager|
manager.serialize_into_session(:your_scope) do |user|
user.id
end
manager.serialize_from_session(:your_scope) do |key|
User.find(key)
end
endin your /config/initializers/devise.rb file.
For example, if you have more than one class in one scope that needs to be serialized and deserialized without getting the wrong class, you can do something like this:
config.warden do |manager|
manager.serialize_into_session(:user) do |user|
[user.class, user.id]
end
manager.serialize_from_session(:user) do |keys|
klass, id = keys
klass.constantize.find(id)
end
endIn this specific case, we were using our own warden strategies without any authenticatable strategy from devise.