child

referenced_image.rb

class ReferencedImage
  include Mongoid::Document
  include Mongoid::Timestamps
  include SimpleWorker::UsedInWorker
  
  IMAGE_TYPES = %w[screenshot artwork thumbnail]
  

#  userstamps!
  
  # Fields :::::::::::::::::::::::::::::::::::::::::::::::::::::  
  # Optional source url where this image was derived from, if cached locally
  field :source_url
  field :image_type
  field :import_source, :type => Array , :default => []
 
  # Validations :::::::::::::::::::::::::::::::::::::::::::::::::::::  
  validates_presence_of :image_type
#  validates_inclusion_of :image_type, :in => IMAGE_TYPES
  
  # Assocations :::::::::::::::::::::::::::::::::::::::::::::::::::::  
  # composition of different image formats
  embeds_many :formats , :class_name => "ImageFormat" ,:inverse_of => :referenced_image 
  embedded_in :image_owner, :inverse_of => :images
  
  # Creator
  referenced_in :creator, :class_name => "User", :foreign_key => :creator_id, :validate => false, \
                :inverse_of => "created_referenced_images"

    
  def large_url
    large[0] if large
  end
  
  def large
    l = (formats || []).select {|x| x.format_tag == :large}
    return l[0].url,l[0].size_w,l[0].size_h if l && l.length > 0
    
    # should find largest format here, or maybe look in some range first
    return formats[0].url,formats[0].size_w,formats[0].size_h if formats && formats.length > 0
  end
end