Error Heroku NoMethod, remember_token =

Question

My application works without any problems locally, but as soon as I click on Heroku, the logs show a NoMethodError. Looking through my code, I really do not see what I am missing right away. Especially, why will he work locally, but at Heroku will he throw NoMethod?

Error

Started POST "/users" for <IP> Processing by UsersController#create as HTML Completed 500 Internal Server Error in 102ms app/models/user.rb:38:in `create_remember_token' app/controllers/users_controller.rb:28:in `create' NoMethodError (undefined method `remember_token=' for #<User:0x000000052e8fb0>): 

user.rb

 class User < ActiveRecord::Base attr_accessible :email, :name, :password, :password_confirmation, :image has_secure_password has_many :microposts, dependent: :destroy mount_uploader :image, AvatarUploader before_save { |user| user.email = email.downcase } before_save :create_remember_token validates :name, presence: true, length: { maximum: 50} VALID_EMAIL_REGEX = /\A[\w+\-.] +@ [az\d\-.]+\.[az]+\z/i validates :email, presence: true, format: { with: VALID_EMAIL_REGEX }, uniqueness: { case_sensitive: false } validates :password, length: {minimum: 6} validates :password_confirmation, presence: true private def create_remember_token self.remember_token = SecureRandom.urlsafe_base64 end 

user_controller.rb

 class UsersController < ApplicationController before_filter :signed_in_user, only: [:index, :edit, :update, :destroy] before_filter :correct_user, only: [:edit, :update] before_filter :admin_user, only: :destroy def index @users = User.paginate(page: params[:page]) end def show @user = User.find(params[:id]) @microposts = @user.microposts.paginate(page: params[:page]) end def new @user = User.new end def destroy User.find(params[:id]).destroy flash[:success] = "User destroyed." redirect_to users_path end def create @user = User.new(params[:user]) if @user.save sign_in @user flash[:success] = "Welcome to El Beano" redirect_to @user else render 'new' end end def edit @user = User.find(params[:id]) end def update @user = User.find(params[:id]) if @user.update_attributes(params[:user]) flash[:success] = 'Profile updated' sign_in @user redirect_to @user else render 'edit' end end private def correct_user @user = User.find(params[:id]) redirect_to(root_path) unless current_user?(@user) end def admin_user redirect_to(root_path) unless current_user.admin? end end 

Answer 1

It looks like you uploaded your code to Heroku, but the database migration that created this column did not start or did not execute correctly.

Can you check if there is a column?

In addition, you tried to log into the console session on your heroku instance:

 heroku run bash --app my_app bundle exec rails c 

Then check that you can access this property in this environment?