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NoMethodError (undefined `persisted? 'Method for nil: NilClass):

NoMethodError (undefined `persisted? 'Method for nil: NilClass):

This is the error I get when trying to use omniauth using Devise ...

I can register on the site with facebook ... but as soon as I log out and try to log in, I get

NoMethodError (undefined `persisted? 'Method for nil: NilClass):

Class Models :: OmniauthCallbacksController <Develop :: OmniauthCallbacksController

def facebook # You need to implement the method below in your model (for example, app / models / user.rb) @model = Model.find_for_facebook_oauth (request.env ["omniauth.auth"], current_model)

if @model.persisted?
  flash[:notice] = I18n.t "devise.omniauth_callbacks.success", :kind => "Facebook"
  sign_in_and_redirect @model, :event => :authentication
else
  session["devise.facebook_data"] = request.env["omniauth.auth"]
  redirect_to new_model_registration_url
end

end

def passthru   render: file = > "# {Rails.root}/public/404.html",: status = > 404,: layout = > false   # , ,   # raise ActionController:: RoutingError.new( " " )

model.rb

class Model < ActiveRecord::Base
  # Include default devise modules. Others available are:
  # :token_authenticatable, :confirmable,
  # :lockable, :timeoutable and 
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable, :omniauthable

  # Setup accessible (or protected) attributes for your model
  attr_accessible :name, :email, :password, :password_confirmation, :remember_me, :provider, :uid
  # attr_accessible :title, :body

  def self.find_for_facebook_oauth(auth, signed_in_resource=nil)
    model = Model.where(:provider => auth.provider, :uid => auth.uid).first
    unless model
    model = Model.create(name:auth.extra.raw_info.name,
                         provider:auth.provider,
                         uid:auth.uid,
                         email:auth.info.email,
                         password:Devise.friendly_token[0,20]
                         )
    end
  end


  def self.new_with_session(params, session)
    super.tap do |model|
      if data = session["devise.facebook_data"] && session["devise.facebook_data"]["extra"]["raw_info"]
        model.email = data["email"] if model.email.blank?
      end
    end
  end
end
+5
2

find_for_facebook_oauth , . , .

def self.find_for_facebook_oauth(auth, signed_in_resource=nil)
  model = Model.where(:provider => auth.provider, :uid => auth.uid).first
  return model if model
  model = Model.create(name:auth.extra.raw_info.name,
                         provider:auth.provider,
                         uid:auth.uid,
                         email:auth.info.email,
                         password:Devise.friendly_token[0,20]
                         )
end
+2
def self.find_for_facebook_oauth(auth, signed_in_resource=nil)
  model = Model.where(:provider => auth.provider, :uid => auth.uid).first
  unless model
  model = Model.create(name:auth.extra.raw_info.name,
                     provider:auth.provider,
                     uid:auth.uid,
                     email:auth.info.email,
                     password:Devise.friendly_token[0,20]
                     )
  end
  model #Add this here
end
+2

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