preference.rb

require 'validate'

# Handles storing of preferences for the application.
#
# This is an internal structure mostly, which is useful to access / save
# things from the GUI.
#
# Prefs are used all over to handle decisions that we'd rather
# not use config files for.
#
class Preference
  
  include DataMapper::Resource
  include DataMapper::Validate
  
  # Types can hold strings, booleans, or pointers to
  # other records (like country)
  CC_PROCESSORS = ['Authorize.net', 'PayPal IPN']
  MAIL_AUTH = ['none', 'plain', 'login', 'cram_md5']
  
  property :id,    Fixnum, :serial => true
  property :name,  String, :default => "", :nullable => false
  property :value, String, :default => ""
  
  validates_presence_of :name, :type
  # FIXME: fix validates_uniqueness_of
  #validates_uniqueness_of :name
  
  def self.find_by_name(name)
    first(:name => name)
  end
  
  # Can throw an error if these items aren't set.
  # Make sure to wrap any block that calls this
  def self.init_mail_settings
    # SET MAIL SERVER SETTINGS FROM PREFERENCES
    mail_host = find_by_name('mail_host').value
    mail_server_settings = {
      :address => mail_host,
      :domain => mail_host,
      :port => find_by_name('mail_port').value,
    }
    mail_auth_type = find_by_name('mail_auth_type').value
    if !mail_auth_type != 'none'
      mail_server_settings[:authentication] = mail_auth_type.to_sym
      mail_server_settings[:user_name] = find_by_name('mail_username').value
      mail_server_settings[:password] = find_by_name('mail_password').value
    end
    ActionMailer::Base.smtp_settings = mail_server_settings
  end
  
  # Saves preferences passed in from our form.
  #
  def self.save_settings(settings)
    logger.info "SERVER SETTINGS..."
    logger.info settings.inspect
    settings.each do |name, value|
      update_all("value = '#{value}'", "name = '#{name}'")
    end
  end
  
  # Determines if a preference is "true" or not.
  # This is the ghetto, bootleg way to determine booleans.
  def is_true?
    if self.value == '1' || self.value == 'true'
      return true
    end
    return false
  end
end