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8c6ca9b Sep 13, 2011
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# == Schema Information
# Schema version: 20100829021049
#
# Table name: users
#
# id :integer not null, primary key
# name :string(255)
# email :string(255)
# created_at :datetime
# updated_at :datetime
# encrypted_password :string(255)
# salt :string(255)
# admin :boolean
#
class User < ActiveRecord::Base
attr_accessor :password
attr_accessible :name, :email, :password, :password_confirmation
has_many :microposts, :dependent => :destroy
has_many :relationships, :dependent => :destroy,
:foreign_key => "follower_id"
has_many :reverse_relationships, :dependent => :destroy,
:foreign_key => "followed_id",
:class_name => "Relationship"
has_many :following, :through => :relationships, :source => :followed
has_many :followers, :through => :reverse_relationships,
:source => :follower
email_regex = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
validates :name, :presence => true,
:length => { :maximum => 50 }
validates :email, :presence => true,
:format => { :with => email_regex },
:uniqueness => { :case_sensitive => false }
validates :password, :presence => true,
:confirmation => true,
:length => { :within => 6..40 }
before_save :encrypt_password
def has_password?(submitted_password)
encrypted_password == encrypt(submitted_password)
end
def feed
Micropost.from_users_followed_by(self)
end
def following?(followed)
relationships.find_by_followed_id(followed)
end
def follow!(followed)
relationships.create!(:followed_id => followed.id)
end
def unfollow!(followed)
relationships.find_by_followed_id(followed).destroy
end
class << self
def authenticate(email, submitted_password)
user = find_by_email(email)
(user && user.has_password?(submitted_password)) ? user : nil
end
def authenticate_with_salt(id, cookie_salt)
user = find_by_id(id)
(user && user.salt == cookie_salt) ? user : nil
end
end
private
def encrypt_password
self.salt = make_salt unless has_password?(password)
self.encrypted_password = encrypt(password)
end
def encrypt(string)
secure_hash("#{salt}--#{string}")
end
def make_salt
secure_hash("#{Time.now.utc}--#{password}")
end
def secure_hash(string)
Digest::SHA2.hexdigest(string)
end
end
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