class OmniauthCallbackController < Devise::OmniauthCallbacksController
def wechat
@user = User.from_omniauth(request.env["omniauth.auth"])
if @user.persisted?
sign_in_and_redirect @user, :event => :authentication
else
session["devise.wechat_data"] = request.env["omniauth.auth"]
redirect_to new_user_registration_url
end
end
end