pretty_id

Add random, unique "pretty" ids to your ActiveRecord models.

Usage

1. Install the gem

gem 'pretty_id'

2. Add a pretty_id column (and index!) to your model

add_column :books, :pretty_id, :string
add_index :books, :pretty_id

3. Add has_pretty_id to your model

class Book < ActiveRecord::Base
  has_pretty_id
end

Options

class Book < ActiveRecord::Base
  has_pretty_id column: :another_string_column,   # default: :pretty_id
                length: 12                        # default: 8
end

Warnings

Pretty IDs are generated using the Bignum#to_s method, and since we're seeding with a random value, there's no guarantee that they'll always be 8 characters long. However, the IDs are always checked against existing values in the database to ensure uniqueness.