class Item < ActiveRecord::Base include ItemsHelper belongs_to :user 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 def self_as_json Jbuilder.encode do |json| @itemdata = Hash.new @itemdata['$desc'] = self.desc @itemdata['$link'] = self.link @itemdata['$itemcatname'] = self.item_category.name json.data @itemdata json.id self.id json.name self.name end end #build a json object of everything connected to a specified node def map_as_json Jbuilder.encode do |json| @single = Array.new @single.push(self) @items = network(self,nil) json.array!(@items) do |item| json.adjacencies item.synapses2.delete_if{|synapse| not @items.include?(Item.find_by_id(synapse.node1_id))} do |json, synapse| json.nodeTo synapse.node1_id json.nodeFrom synapse.node2_id @synapsedata = Hash.new @synapsedata['$desc'] = synapse.desc @synapsedata['$category'] = synapse.category json.data @synapsedata end @itemdata = Hash.new @itemdata['$desc'] = item.desc @itemdata['$link'] = item.link @itemdata['$itemcatname'] = item.item_category.name json.data @itemdata json.id item.id json.name item.name end end end def all_as_json Jbuilder.encode do |json| @items = Item.all 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['$desc'] = synapse.desc @synapsedata['$category'] = synapse.category json.data @synapsedata end @itemdata = Hash.new @itemdata['$desc'] = item.desc @itemdata['$link'] = item.link @itemdata['$itemcatname'] = item.item_category.name json.data @itemdata json.id item.id json.name item.name end end end end