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Contents
# frozen_string_literal: true, encoding: ASCII-8BIT
require 'radix/base'
module CouchbaseOrm
class IdGenerator
# Using base 65 as a form of compression (reduced length of ID string)
# No escape characters are required to display these in a URL
B65 = ::Radix::Base.new(::Radix::BASE::B62 + ['-', '_', '~'])
B10 = ::Radix::Base.new(10)
# We don't really care about dates before this library was created
# This reduces the length of the ID significantly
Skip46Years = 1451649600 # 46.years.to_i
# Generate a unique, orderable, ID using minimal bytes
def self.next(model)
# We are unlikely to see a clash here
now = Time.now
time = (now.to_i - Skip46Years) * 1_000_000 + now.usec
# This makes it very very improbable that there will ever be an ID clash
# Distributed system safe!
prefix = time.to_s
tail = (rand(9999) + 1).to_s.rjust(4, '0')
"#{model.class.design_document}-#{Radix.convert("#{prefix}#{tail}", B10, B65)}"
end
end
end
Version data entries
24 entries across 24 versions & 1 rubygems