orbit-basic/app/models/user.rb

class User
  
  include Mongoid::Document
 
  devise :database_authenticatable, :recoverable, :rememberable, :trackable, :registerable
  
  mount_uploader :avatar, AvatarUploader
  
  field :admin, :type => Boolean, :default => true
  field :active_attributes, :type => Array
  
  embeds_many :user_attributes
  before_update :clean_active_attributes
  
  # Update or create the user_attribute records
  def user_attributes=(*attrs)
    attrs[0].each do |attributes|
      if attributes[:id].blank?
        user_attributes.build(attributes)
      else
        user_attribute = user_attributes.detect {|a| a.id.to_s == attributes[:id].to_s }
        user_attribute.update_attributes(attributes)
      end
    end
  end
  
  # Get an user_attribute from model key
  def get_attribute_from_model_key(key)
    self.user_attributes.detect {|a| a.key.to_s == key.to_s }
  end
  
  # Get the active user_attribute_models
  def get_active_attribute_models
    self.active_attributes.map{ |attr| get_attribute_model(attr) } rescue []
  end
  
  # Get an user_attribute_model from key
  def get_attribute_model(key)
    UserAttributeModel.first(:conditions => {:key => key})
  end
  
  # Get the active attributes names or default to '-'
  def get_attributes
    (self.active_attributes.nil? || self.active_attributes.empty?) ? '-' : self.active_attributes.map{|attr| I18nVariable.first(:conditions => {:key => attr})[I18n.locale] rescue attr}.join(' / ')
  end
  
  protected
  
  # Remove empty values
  def clean_active_attributes
    self.active_attributes.delete('') if self.active_attributes
  end
  
end