class Item < ActiveRecord::Base belongs_to :user has_many :itemitem_c, :foreign_key => 'parent_item_id', :class_name => 'Itemitem' has_many :itemitem_p, :foreign_key => 'item_id', :class_name => 'Itemitem' has_many :groupitems has_many :personitems has_many :groups, :through => :groupitems has_many :people, :through => :personitems has_many :synapses1, :class_name => 'Synapse', :foreign_key => 'node1_id', :conditions => {:category => 'Item'} has_many :synapses2, :class_name => 'Synapse', :foreign_key => 'node2_id', :conditions => {:category => 'Item'} has_many :items1, :through => :synapses2, :source => :item1 has_many :items2, :through => :synapses1, :source => :item2 def synapses synapses1 + synapses2 end def relatives items1 + items2 end belongs_to :item_category has_many :child_items, :through => :itemitem_c, :source => :item has_many :parent_items, :through => :itemitem_p, :source => :parent_item def as_json Jbuilder.encode do |json| @single = Array.new @single.push(self) @items = @single + self.relatives json.array!(@items) do |item| json.adjacencies item.synapses2.delete_if{|synapse| not @items.include?(Item.find_by_id(synapse.node1_id))} do |json, synapse| json.nodeTo synapse.node1_id json.nodeFrom synapse.node2_id @synapsedata = Hash.new @synapsedata['desc'] = synapse.desc json.data @synapsedata end @itemdata = Hash.new @itemdata['desc'] = item.desc @itemdata['link'] = item.link json.data @itemdata json.id item.id json.name item.name end end end end