Module: KeteTrackableItems::TrackableItem::ClassMethods

Defined in:
lib/kete_trackable_items/trackable_item.rb

Instance Method Summary collapse

Instance Method Details

#set_up_as_trackable_item(*args) ⇒ Object 



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# File 'lib/kete_trackable_items/trackable_item.rb', line 10

def set_up_as_trackable_item(*args)
  options = args.last.is_a?(Hash) ? args.pop : Hash.new

  # don't allow multiple calls
  return if self.included_modules.include?(KeteTrackableItems::TrackableItem::InstanceMethods)

  send :include, KeteTrackableItems::TrackableItem::InstanceMethods

  # associations to support allocating a trackable_item to a shelf_location or shelf_locations
  send :has_many, :trackable_item_shelf_locations, :as => :trackable_item, :dependent => :delete_all
  send :has_many, :shelf_locations, :through => :trackable_item_shelf_locations, :conditions => "trackable_item_shelf_locations.workflow_state = 'active'"
  # associations to support adding a trackable_item to a tracking_list
  send :has_many, :tracked_items, :as => :trackable_item, :dependent => :delete_all
  send :has_many, :tracking_lists, :through => :tracked_items

  # when a trackable_item is in 'on_loan' state, which on_loan_organization is it on loan to?
  send :belongs_to, :on_loan_organization

  self.non_versioned_columns << "on_loan_organization_id"

  cattr_accessor :described_as_in_tracking_list
  self.described_as_in_tracking_list = options[:described_as] || :title

  # set up our states and events through workflow gem
  send :include, KeteTrackableItems::WorkflowUtilities
    
  class_eval do
    shared_code_as_string = shared_tracking_workflow_specs_as_string

    specification = Proc.new {
      state :unallocated do
        event :allocate, :transitions_to => :on_shelf
      end

      eval(shared_code_as_string)

      state :to_be_refiled do
        event :refile, :transitions_to => :on_shelf
      end
    }

    workflow(&specification)

    set_up_workflow_named_scopes.call
  end

  self.non_versioned_columns << "workflow_state"
end