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Problem with register users

Hi, I try to learn something about Rails and follow the Treebook tutorial. I've come to that stage when we install devise. And devise is installed with no problems. and I can register a new user without a problem. But I always get a error message "undefined method `full_name' for nil:NilClass"

app/views/statuses/index.html.erb:9:in `block in _app_views_statuses_index_html_erb___3166094988121289217_70208237682380'
app/views/statuses/index.html.erb:5:in `_app_views_statuses_index_html_erb___3166094988121289217_70208237682380'

And I've try to solve this problem by my self, and I had try to delete all statuses & Users multiple times, without success.

When I do Rails c -> U = User.First I get following code.

irb(main):001:0> U = User.first
  User Load (0.2ms)  SELECT "users".* FROM "users" ORDER BY "users"."id" ASC LIMIT 1
=> #<User id: 4, first_name: nil, last_name: nil, profile_name: nil, email: "john@john.com", encrypted_password: "$2a$10$E3O/AblpU7jYgPFU.qEeWuo7uSPABnaCQoKL2UgOWtvJ...", reset_password_token: nil, reset_password_sent_at: nil, remember_created_at: nil, sign_in_count: 1, current_sign_in_at: "2013-09-14 11:45:18", last_sign_in_at: "2013-09-14 11:45:18", current_sign_in_ip: "", last_sign_in_ip: "", created_at: "2013-09-14 11:45:18", updated_at: "2013-09-14 11:45:18">

It seems like devise don't register full name, last name & profile name ?! Can this be the problem and how do I fix it?


Which stage are you on?

The full_name method is not one that's defined in Stage 3 so maybe you want first_name?

First_name doesn't work either. I'm on Creating an Authentication System but the problem started showing up when installed simple_form

this is my user.rb file

class User < ActiveRecord::Base

# Include default devise modules. Others available are: # :confirmable, :lockable, :timeoutable and :omniauthable devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable

attr_accessible :email, :password, :password_confirmation, :remember_me, :first_name, :last_name, :profile_name # attr_accessible :title, :body

has_many :statuses

def full_name first_name + " " + last_name end


1 Answer

Alan Johnson
Alan Johnson
7,625 Points

So the error "undefined method X for nil:NilClass" pretty much always guarantees that you're calling a method on nil that you're meaning to be calling on an object. In this case you're calling full_name on nil. Since it's happening in your view, that probably means that you're not logged in, but I'll need to see your view code to know for sure.