Model namespace

I have User model with static method authenticate and I use Rubyoverflow gem.

In the controller I code:

User.authenticate(params[:user], params[:password])

but get the error:

undefined method `authenticate' for Rubyoverflow::User:Class

How can I say that I开发者_Python百科 need the User from Rails model?

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Try

 ::User.authenticate(params[:user], params[:password])