Devise: Error: 'authenticable_salt returned nil for the User model'

[RKushnir]

I'm using rails 3.1.3 and just upgraded devise from 1.5.3 to 2.0.1. I re-generated the initializer so all properties have their default values. Now I'm getting this error when trying to login user:

 authenticable_salt returned nil for the User model. In order to use rememberable, you must ensure a password is always set or implement rememberable_value in your model with your own logic.

I don't have the standard DB-backed configuration because I'm using a custom authentication strategy via 3rd-party web-service. I tried adding authenticable_salt column to users table but that doesn't help as it's not being assigned anywhere and is always nil. If I really need to override the rememberable_value method, what should I put in it? Is there an example implementation? Please, I need some guidance in resolving this. Thank you.

[RKushnir]

If I just add an empty method rememberable_value it passes, but what's the way to do this correctly?

[josevalim]

You need to create a database field, it could be the remember_token from previous devise versions. Then just do this:

before_create :remember_value

def remember_value
self.remember_token ||= Devise.friendly_token
end

Or something like that. I am on iPhone, so I can't enter more details. :(

[josevalim]

s/remember_value/rememberable_value

[RKushnir]

Ok, that works. Thanks for such a quick help!

[RKushnir]

Hello. Actually the code above:

before_create :remember_value
def remember_value
  self.remember_token ||= Devise.friendly_token
end

doesn't work for remembering user sessions. After user restarts the browser devise asks to login again. Could you give any other ideas?

[josevalim]

If you use Devise master, everything should work by simply defining a remember_token column.

[RKushnir]

Do you mean I don't need to use the above code anymore? If I just remove it I get the error:

authenticable_salt returned nil for the User model. In order to use rememberable, you must ensure a password is always set or implement rememberable_value in your model with your own logic.

I'm on devise 2.0.2.

[josevalim]

Please use master branch, from git.

[RKushnir]

Works, thanks!

[vikram6]

I'm using devise 2.1.0. I was getting the same error and was able to get rid of it by adding a remember_token column to the database.
However, although there is no error now, the cookie is not being saved. Do I have to do anything else apart from adding remember_token to the DB?
Thanks.

[jerryshen]

devise 2.2.1, same error when authenticated with third party service, cause the password was empty.