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POundefined method `password_hash' error with datamapper
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  1. POundefined method `password_hash' error with datamapper
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    copied!<p>I'm trying to build [Ryan Bates' "authenticaion from scratch"][1] using sinatra but authentication does not work. I get a "undefined method password_hash" error.</p> <p>Everything else is working. I checked datamapper documentation, especially for lazy loading, but couldn't find anything useful. The code is below. What mistake am I doing?</p> <h1>main.rb (only relevant part)</h1> <pre><code>post "/login" do user = User.authenticate params[:email], params[:password] if user session[:user_id] = user.id redirect "/" else session[:errors] = "No such user or bad password." redirect "/login" end end </code></pre> <h1>user.rb</h1> <pre><code>require 'data_mapper' require 'dm-validations' require 'bcrypt' module Kimsin DataMapper.setup :default, 'sqlite3:///home/barerd/RProjects/kimsin/users.db' class User attr_accessor :password, :confirm_password include DataMapper::Resource property :id, Serial property :email, String, :required =&gt; true, :unique =&gt; true, :format =&gt; :email_address, :messages =&gt; { :presence =&gt; "We need your email address.", :is_unique =&gt; "We already have that email.", :format =&gt; "Doesn't look like an email adress.."} property :password_salt, String property :password_hash, String, :length =&gt; 80 validates_presence_of :password, :confirm_password, :messages =&gt; { :presence =&gt; "You have to type a password and confirm it." } validates_format_of :password, :confirm_password, :with =&gt; /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])([\x20-\x7E]){8,40}$/, :messages =&gt; { :format =&gt; "The password should be 8 to 40 characters long and contain at least one digit, one lowercase and one uppercase letter and one special character." } before :save, :encrypt_password def self.authenticate email, password user = User.all :email.like =&gt; email if user &amp;&amp; user.password_hash == BCrypt::Engine.hash_secret(password, user.password_salt) user else nil end end def encrypt_password if password != nil self.password_salt = BCrypt::Engine.generate_salt self.password_hash = BCrypt::Engine.hash_secret password, password_salt end end end DataMapper.finalize end </code></pre>
 

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