Rails -- updating a model in a database - ruby

Question

So I ran into a little issue with validations -- I created a validation to ensure that no users in a database share identical email addresses. Then I created a user in the database. Afterward, I said user = User.find(1) which returned the user I had just created. Then I wanted to change its name so I said user.name = "New Name" and then tried to use user.save to save it back into the database. However, this command isn't working anymore (it returns false instead) and I think it has to do with my uniqueness validation test. Can someone help me with this problem?
# == Schema Information
#
# Table name: users
#
# id :integer not null, primary key
# name :string(255)
# email :string(255)
# created_at :datetime
# updated_at :datetime
#
class User < ActiveRecord::Base
attr_accessor :password
attr_accessible :name, :email, #says that the name and email attributes are publicly accessible to outside users.
:password, :password_confirmation #it also says that all attributes other than name and email are NOT publicly accessible.
#this protects against "mass assignment"
email_regex = /^[A-Za-z0-9._+-]+#[A-Za-z0-9._-]+\.[A-Za-z0-9._-]+[A-Za-z]$/ #tests for valid email addresses.
validates :name, :presence => true,
:length => {:maximum => 50}
validates :email, :presence => true,
:format => {:with => email_regex},
:uniqueness => {:case_sensitive => false}
validates :password, :presence => true,
:length => {:maximum => 20, :minimum => 6},
:confirmation => true
before_save :encrypt_password
def has_password?(submitted_password)
#compare encrypted_password with the encrypted version of the submitted password.
encrypted_password == encrypt(submitted_password)
end
def self.authenticate(email, submitted_password)
user = find_by_email(email)
if (user && user.has_password?(submitted_password))
return user
else
return nil
end
end
private
def encrypt_password
if (new_record?) #true of object has not yet been saved to the database
self.salt = make_salt
end
self.encrypted_password = encrypt(password)
end
def encrypt(string)
secure_hash("#{salt}--#{string}")
end
def secure_hash(string)
Digest::SHA2.hexdigest(string) #uses cryptological hash function SHA2 from the Digest library to encrypt the string.
end
def make_salt
secure_hash("#{Time.now.utc}--#{password}")
end
end

Answer 1

try save! and see what the exception tells you