Merge pull request #33 from heelhook/master

Support to find attributes of relationship

README.rdoc

@@ -274,6 +274,7 @@ The Neo4j ID is available by using node.neo_id .
   new_rel.start_node                                                   # Get the start/from node of a relationship
   new_rel.end_node                                                     # Get the end/to node of a relationship
   new_rel.other_node(n2)                                               # Get the other node of a relationship
+  new_rel.attributes                                                   # Get the attributes of the relationship as an array
 
   existing_rel = Neography::Relationship.load(12)                      # Get an existing relationship by id
   existing_rel.del                                                     # Delete a relationship

lib/neography/relationship.rb

@@ -55,6 +55,11 @@ def del
     def exist?
       !self.start_node.neo_server.get_relationship(self.neo_id).nil?
     end
+
+    def attributes
+      attrs = self.methods - OpenStruct.instance_methods - Neography::Relationship.instance_methods
+      attrs.values_at(*attrs.each_index.select {|i| i.even?})
+    end
 
     def other_node(node)
       if node == @start_node
@@ -65,4 +70,4 @@ def other_node(node)
     end
 
   end
-end
+end