问哪一个更好？用于twitter验证的Omniauth或Omniauth+Devise？

EN

def create
    user = User.from_omniauth(env["omniauth.auth"])
    session[:user_id] = user.id
    redirect_to root_url, notice: "Successfully signed in"
end

def twitter
    omni= request.env["omniauth.auth"]
authentication = Authentication.find_by_provider_and_uid(omni['provider'],omni['uid'])
if authentication
    flash[:notice]="Logged in successfully"
    sign_in_and_redirect User.find(authentication.user_id)
elsif current_user
    token=omni['credentials'].token
    token_secret=omni['credentials'].secret
    current_user.authentications.create! (:provider=>omni['provider'],:uid=>omni['uid'],:token=>token,:token_secret=>token_secret)
    flash[:notice]="Authentication successful."
    sign_in_and_redirect current_user
else
    user=User.new
    user.apply_omniauth(omni)
        if user.save
        flash[:notice]="Logged in."
        sign_in_and_redirect User.find(user.id)
    else
        session[:omniauth]=omni.except('extra')
        redirect_to new_user_registration_path
    end 
end
end