An AR abstract superclass that features a UUID as the default 'id' column, and a generator.

Generate secure 64-bit integers using the same approach used by UUIDs.

Mongoid extension for storing and retrieving UUIDs on documents.

ToId converts types to ids and uuids

RUUID (Ruby UUID) parses, generates, and represents RFC 4122 universally unique identifiers.

Unobtrusive binary UUID support for ActiveRecord. Supports migrations, reflections, assocations and SchemaDumper.

You need a UUID from some string. Maybe a URL shortner without a database, or some kind of ID passed as parameter. This gem uses Huffman Coding [http://en.wikipedia.org/wiki/Huffman_coding] and base 36 integers [http://en.wikipedia.org/wiki/Base_36] to create such ID.

Compression and packing methods for singular and collection IDs and UUIDs.

Get Mojang profile information coming from a username or a UUID. Will also read in whitelist data and output whitelists in pre-1.7 and 1.7+ formats.

Mongoid::UPK generates more unique `_id` by using UUID.

Support for rails_admin field types UUID and Citext

Hides sequential primary key counts without resorting to UUIDs or GUIDs.

Ruby wrapper for the uuid library in your OS.

typo in aws gem

Add timestamps, parent PID's and request UUID's to each logger line.

Sole helps with generating unique identifiers similar to a UUID or ULID but packing in additional metadata to make it useful for storage solutions.

Create, update, and delete records within a block, assign the same request_uuid to them, and be able to easily view and undo them

Lazily generate string pattern combinations to name your [puppy|startup|band] or write bad poems or produce UUID variants. Kinda like reverse regex. Lazily loads "pages" of combinations and returns results before the heat death of the universe.

Convert Integer ID or UUID String to/from Base58 String; Generate random Base58 String

Stop hitting the DB with every secure-token submission. Encoded Tokens have the ID, or UUID, encoded within the token itself - increasing both security and performance. Coded in plain Ruby, EncodedToken is framework agnostic.