Add a currently not working Link example.

2_link_basics.rb

@@ -0,0 +1,49 @@
+####
+# NOT CURRENTLY WORKING - RIAK IS THROWING A 500 ON THE QUERY
+# Running the 'same' by hand (e.g)
+# curl http://127.0.0.1:8098/raw/test1/852120fe1b2f11df7b81f9cd003fb038/test1,parent,1
+# Is working
+###
+
+
+require 'riak'
+require 'uuid'
+
+def gen_id
+  UUID.create.to_s.gsub('-','')  
+end
+
+# Connect and get a bucket instance
+client = Riak::Client.new
+bucket = client.bucket("test1")
+
+# Create and save a simple JSON object
+new_one = Riak::RObject.new(bucket, gen_id)
+new_one.content_type = "application/json" # You must set the content type.
+new_one.data = "{'item': 'one'}"
+new_one.store
+
+# Create and save a second JSON object, linking to the first
+new_two = Riak::RObject.new(bucket, gen_id)
+new_two.content_type = "application/json" # You must set the content type.
+new_two.data = "{'item': 'two'}"
+# Linking. Must be a better way to create the URL?. Link is tagged parent
+new_two.links << Riak::Link.new("/raw/#{bucket.name}/#{new_two.key}", "parent")
+new_two.store
+
+# Walk the link. We start the walk from new_two, and limit the walk to the current
+# bucket, and traverse links tagged parent. The last item on the list needs 
+# keep => true, to return the results
+mr = Riak::MapReduce.new(client).add("test1", new_two.key).link(:bucket => 'test1',
+                                                   :tag => 'parent', :keep => true)
+puts "** Query JSON ***"
+puts mr.to_json
+puts "*** Results of link query ***"
+p mr.run
+
+keys = bucket.keys
+
+puts "*** All items in bucket ***"
+keys.each {|k| p bucket.get(k)}
+keys.each {|k| bucket.get(k).delete}
+