lib/reality/model/model_element.rb in reality-model-1.0.0 vs lib/reality/model/model_element.rb in reality-model-1.1.0

@@ -128,10 +128,14 @@
 
         code += <<-RUBY
 
   public
 
+  def <=>(other)
+    self.#{self.id_method} <=> other.#{self.id_method}
+  end
+
   def options=(options)
     options.each_pair do |k, v|
       keys = k.to_s.split('.')
       target = self
       keys[0, keys.length - 1].each do |target_accessor_key|
@@ -176,9 +180,13 @@
     #{child.inverse_access_method}
   end
 
   def #{child.access_method}
     #{child.inverse_access_method}_map.values
+  end
+
+  def #{child.inverse_access_method}_#{Reality::Naming.pluralize(child.id_method)}
+    #{child.inverse_access_method}_map.keys
   end
 
   def #{child.access_method}?
     !#{child.inverse_access_method}_map.empty?
   end