class PetState < ActiveRecord::Base SwfAssetType = 'biology' has_one :contribution, :as => :contributed has_many :parent_swf_asset_relationships, :foreign_key => 'parent_id', :conditions => {:swf_asset_type => SwfAssetType} has_many :swf_assets, :through => :parent_swf_asset_relationships, :source => :biology_asset belongs_to :pet_type alias_method :swf_asset_ids_from_association, :swf_asset_ids def swf_asset_ids self['swf_asset_ids'] end def swf_asset_ids=(ids) self['swf_asset_ids'] = ids end def self.from_pet_type_and_biology_info(pet_type, info) swf_asset_ids = [] info.each do |asset_info| if asset_info swf_asset_ids << asset_info[:part_id].to_i end end swf_asset_ids_str = swf_asset_ids.join(',') if pet_type.new_record? pet_state = self.new :swf_asset_ids => swf_asset_ids_str else pet_state = self.find_or_initialize_by_pet_type_id_and_swf_asset_ids( pet_type.id, swf_asset_ids_str ) end existing_swf_assets = SwfAsset.find_all_by_id(swf_asset_ids) existing_swf_assets_by_id = {} existing_swf_assets.each do |swf_asset| existing_swf_assets_by_id[swf_asset.id] = swf_asset end existing_relationships_by_swf_asset_id = {} unless pet_state.new_record? pet_state.parent_swf_asset_relationships.each do |relationship| existing_relationships_by_swf_asset_id[relationship.swf_asset_id] = relationship end end pet_state.pet_type = pet_type # save the second case from having to look it up by ID relationships = [] info.each do |asset_info| if asset_info swf_asset_id = asset_info[:part_id].to_i swf_asset = existing_swf_assets_by_id[swf_asset_id] unless swf_asset swf_asset = SwfAsset.new swf_asset.id = swf_asset_id end swf_asset.origin_biology_data = asset_info swf_asset.origin_pet_type = pet_type relationship = existing_relationships_by_swf_asset_id[swf_asset_id] unless relationship relationship ||= ParentSwfAssetRelationship.new relationship.parent_id = pet_state.id relationship.swf_asset_type = SwfAssetType relationship.swf_asset_id = swf_asset.id end relationship.biology_asset = swf_asset relationships << relationship end end pet_state.parent_swf_asset_relationships = relationships pet_state end end