adding relationship types

README.md

@@ -99,6 +99,7 @@ Some of this functionality is shown here, but all of it is explained in the foll
 * [Node relationships](https://github.com/maxdemarzi/neography/wiki/Node-relationships) - Create and get relationships between nodes.
 * [Relationship](https://github.com/maxdemarzi/neography/wiki/Relationships) - Get and delete relationships.
 * [Relationship properties](https://github.com/maxdemarzi/neography/wiki/Relationship-properties) - Create, get and delete relationship properties.
+* [Relationship types](https://github.com/maxdemarzi/neography/wiki/Relationship-types) - List relationship types.
 * [Node indexes](https://github.com/maxdemarzi/neography/wiki/Node-indexes) - List and create node indexes. Add, remove, get and search nodes in indexes.
 * [Relationship indexes](https://github.com/maxdemarzi/neography/wiki/Relationship-indexes) - List and create relationships indexes. Add, remove, get and search relationships in indexes.
 * [Auto indexes](https://github.com/maxdemarzi/neography/wiki/Auto-indexes) - Get, set and remove auto indexes.

lib/neography/rest.rb

@@ -19,6 +19,7 @@
 require 'neography/rest/relationship_properties'
 require 'neography/rest/relationship_indexes'
 require 'neography/rest/relationship_auto_indexes'
+require 'neography/rest/relationship_types'
 require 'neography/rest/cypher'
 require 'neography/rest/gremlin'
 require 'neography/rest/extensions'
@@ -55,6 +56,7 @@ def initialize(options = ENV['NEO4J_URL'] || {})
       @relationship_properties   = RelationshipProperties.new(@connection)
       @relationship_indexes      = RelationshipIndexes.new(@connection)
       @relationship_auto_indexes = RelationshipAutoIndexes.new(@connection)
+      @relationship_types        = RelationshipTypes.new(@connection)
 
       @cypher                    = Cypher.new(@connection)
       @gremlin                   = Gremlin.new(@connection)
@@ -63,6 +65,12 @@ def initialize(options = ENV['NEO4J_URL'] || {})
       @clean                     = Clean.new(@connection)
     end
 
+    # meta-data
+
+    def list_relationship_types
+      @relationship_types.list
+    end
+
     # nodes
 
     def get_root

lib/neography/rest/relationship_types.rb

@@ -0,0 +1,14 @@
+module Neography
+  class Rest
+    class RelationshipTypes < Properties
+      extend Neography::Rest::Paths
+
+      add_path :all,    "/relationship/types"
+
+      def list
+        @connection.get(all_path)
+      end
+
+    end
+  end
+end

spec/integration/rest_relationship_types_spec.rb

@@ -0,0 +1,18 @@
+require 'spec_helper'
+
+describe Neography::Rest do
+  before(:each) do
+    @neo = Neography::Rest.new
+  end
+
+  describe "list relationship types" do
+    it "can get a listing of relationship types" do
+      new_node1 = @neo.create_node
+      new_node2 = @neo.create_node
+      new_relationship = @neo.create_relationship("friends", new_node1, new_node2)
+      rel_types = @neo.list_relationship_types
+      rel_types.should_not be_nil
+      rel_types.should include("friends")
+    end
+  end
+end

spec/unit/rest/relationship_types_spec.rb

@@ -0,0 +1,16 @@
+require 'spec_helper'
+
+module Neography
+  class Rest
+    describe RelationshipTypes do
+
+      let(:connection) { stub(:configuration => "http://configuration") }
+      subject { RelationshipTypes.new(connection) }
+
+      it "lists all relationship types" do
+        connection.should_receive(:get).with("/relationship/types")
+        subject.list
+      end
+    end
+  end
+end