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R

rails-settings

> 后端框架
Open source

Manage settings with Ruby on Rails

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About

Manage settings with Ruby on Rails

Settings for Rails

Ruby gem to handle settings for ActiveRecord instances by storing them as serialized Hash in a separate database table. Namespaces and defaults included.

Requirements

  • Ruby 3.2 or newer
  • Rails 6.1 or newer (including Rails 8.0)

Installation

Include the gem in your Gemfile and run bundle to install it:

gem 'ledermann-rails-settings'

Generate and run the migration:

rails g rails_settings:migration
rake db:migrate

Usage

Define settings

class User  { :theme => 'blue', :view => 'monthly', :filter => false }
    s.key :calendar,  :defaults => { :scope => 'company'}
  end
end

If no defaults are needed, a simplified syntax can be used:

class User  'ProjectSettingObject'
end

class ProjectSettingObject  'black'
user.settings(:calendar).update! :scope => 'all', :display => 'daily'

Get settings

user = User.find(1)
user.settings(:dashboard).theme
# => 'black

user.settings(:dashboard).view
# => 'monthly'  (it's the default)

user.settings(:calendar).scope
# => 'all'

Delete settings

user = User.find(1)
user.settings(:dashboard).update! :theme => nil

user.settings(:dashboard).view = nil
user.settings(:dashboard).save!

Using scopes

User.with_settings
# => all users having any setting

User.without_settings
# => all users without having any setting

User.with_settings_for(:calendar)
# => all users having a setting for 'calendar'

User.without_settings_for(:calendar)
# => all users without having settings for 'calendar'

Eager Loading

User.includes(:setting_objects)
# => Eager load setting_objects when querying many users

Compatibility

Version 2 is a complete rewrite and has a new DSL, so it's not compatible with Version 1. In addition, Rails 2.3 is not supported anymore. But the database schema is unchanged, so you can continue to use the data created by 1.x, no conversion is needed.

If you don't want to upgrade, you find the old version in the 1.x branch. But don't expect any updates there.

Changelog

See https://github.com/ledermann/rails-settings/releases

License

MIT License

Copyright (c) 2012-2024 Georg Ledermann

This gem is a complete rewrite of rails-settings by Alex Wayne

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> Tags

Rubyconfigurationrailsrubyrubygems

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> Details

PublishedAug 1, 2026
UpdatedSep 17, 2026
Category后端框架
PricingOpen source

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