https://github.com/oieioi/ketsuban

🍀 Skip unlucky numbers for ActiveRecord surrogate key
https://github.com/oieioi/ketsuban

activerecord rubygem

Last synced: 8 months ago
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🍀 Skip unlucky numbers for ActiveRecord surrogate key

• Host: GitHub
• URL: https://github.com/oieioi/ketsuban
• Owner: oieioi
• License: mit
• Created: 2019-01-25T14:55:21.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2019-12-03T07:39:30.000Z (over 6 years ago)
• Last Synced: 2025-09-20T22:36:10.935Z (9 months ago)
• Topics: activerecord, rubygem
• Language: Ruby
• Homepage:
• Size: 52.7 KB
• Stars: 5
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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# ketsuban

Skip unlucky numbers for ActiveRecord surrogate key `id`.

## Usage

Gemfile:

```ruby

gem 'ketsuban'

```

Some Model:

```ruby

class User < ApplicationRecord

  include Ketsuban

  unlucky_numbers [4, 5]  

end

5.times.map { User.create.id }

# => [1, 2, 3, 6, 7]

```

or

```ruby

class User < ApplicationRecord

  include Ketsuban

  unlucky_numbers ->(next_id) { next_id.odd? }

end

5.times.map { User.create.id }

# => [2, 4, 6, 8, 10]

```

`unlucky_numbers` is aliased `ketsuban`

## License

The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).