bundle install Tools > Run Rails Generator > scaffold > User name:string password_digest:string Tools > Run Rake Task > db:migrate コードを書く class User < ActiveRecord::Base attr_accessible :name, :password_digest, :password, :password_confirmation validates :name, presence: true, uniqueness:true has_secure_password end <%= form_for(@user) do |f| %> <% if @user.errors.any? %> <div id="error_explanatio
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