Script that illustrates that when an RObject is created, saved, created, deleted, then created, saved again, it is not successfully saved to the riak data store.

riak_object_save_delete_save_test.rb

#!/usr/bin/env ruby

# Script that illustrates that when an RObject is created, saved, 
# created, deleted, then created, saved again, it is not
# successfully saved to the riak data store.

require 'rubygems'
require 'riak'

CLIENT = Riak::Client.new

# Convenience method to create an RObject in a single call
# * *Args*
# - bucket to access
# - key to select content
# - contents to store in riak
# - content_type of data to be stored.
# - custom_metadata - hash of metadata key, values to store with document content
# - links - set of Riak::Link(s) to store with document content
def create_robject(bucket_name, key, contents,
    content_type = 'application/octet-stream', custom_metadata=nil, links=nil)

  obj = Riak::RObject.new(CLIENT[bucket_name], key)
  obj.data = contents
  obj.content_type = content_type
  obj.meta = custom_metadata
  obj.links = links
  obj
end


def key_exists?(bucket, key)
  exists = true
  begin
    CLIENT[bucket][key]
    puts 'found it!'
  rescue Riak::HTTPFailedRequest
    puts 'didnt find it!'
    exists = false
  end
  exists
end


BUCKET = 'mybucket'
KEY = 'mykey'
CONTENT = 'my content'
MIME_TYPE = 'application/text'


def create_and_store_an_object
  x = create_robject(BUCKET, KEY, CONTENT, MIME_TYPE)
  x.store
  puts key_exists?(BUCKET, KEY)
end


def delete_an_object
  obj = CLIENT[BUCKET][KEY]
  obj.delete
  puts key_exists?(BUCKET, KEY)
end

create_and_store_an_object
delete_an_object
create_and_store_an_object