5ZqdCuiV

1class Credential
2  include ActiveModel::Validations
3
4  attr_accessor :screen_name, :oauth_token, :oauth_secret, :token, :description
5
6  validates_presence_of :screen_name, :oauth_token, :oauth_secret, :message => 'required'
7  validate :user_exists, :unless => :errors?
8
9  def initialize(attributes = {})
10    attributes.each { |k, v| set_recognized_attribute(k, v) }
11  end
12
13  def save
14    valid? && create_device
15  end
16
17  def api_key
18    @device.api_key
19  end
20
21  private
22
23  def errors?
24    errors.any?
25  end
26
27  def set_recognized_attribute(name, value)
28    setter_method = "#{name}="
29    self.send(setter_method, value) if respond_to?(setter_method)
30  end
31
32  def user
33    @user ||= User.by_screen_name(screen_name).where({
34      :oauth_token  => oauth_token,
35      :oauth_secret => oauth_secret
36    }).first
37  end
38
39  def create_device
40    @device = Device.find_or_create_by_token!({
41      :token       => token,
42      :description => description,
43      :user_id     => user.id
44    })
45    !@device.nil?
46  end
47
48  def user_exists
49    errors.add(:user, 'not found') unless user.present?
50  end
51end