はてなブックマーク

Hey friends. I try to figure out facebook user email. I used $this->authUser[$this->User->alias]['email'] = $this->session['email'] in connect.php file. But, it returns null and i am getting an error. I think, problem is $this->session['email']. Because when i use $this->authUser[$this->User->alias]['email'] = "example@example.com, it works. How can i save user email from facebook to my database?