SyntheticUUID.md

Because sometimes faking it is enough.

guid.js

function genGUID() {
  // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript
  return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
    var r = Math.random()*16|0, v = c == 'x' ? r : (r&0x3|0x8);
    return v.toString(16);
  });
}

uuid.sql

-- postgres, at least

CREATE FUNCTION generate_uuid() RETURNS uuid AS $$
  SELECT md5(random()::text || clock_timestamp()::text)::uuid
$$ LANGUAGE SQL;


-- or, simpler:
create extension if not exists pgcrypto;
select gen_random_uuid() from foo;

http://stackoverflow.com/questions/12505158/generating-a-uuid-in-postgres-for-insert-statement