has_defaults

Default values for ActiveRecord models.

Installation

In your Gemfile

gem 'has_defaults'

Now run

bundle install

Usage

Add the method call has_defaults to your model.

class Page < ActiveRecord::Base
  has_defaults :title => "New page", :body => "Put your text here"
end

Attributes will be set only if it's a new record and the attribute is blank.

Retrieve the default attribute with the default_for instance method:

@page.default_for(:title)

You can pass Proc as attribute:

has_defaults :expires_at => proc { Time.now }

You can override the default attributes as follow:

Page.has_defaults_options = {:title => "Here's your new page", :body => "Write your page text"}

Development

There are tests in spec. We only accept PRs with tests. To run tests:

• Install Ruby 2.7.4
• Create a local test database has_defaults_test in both MySQL and PostgreSQL
• Copy spec/support/database.sample.yml to spec/support/database.yml and enter your local credentials for the test databases
• Install development dependencies using bundle install
• Run tests using bundle exec rspec

We recommend to test large changes against multiple versions of Ruby and multiple dependency sets. We provide some rake tasks to help with this:

• Install development dependencies using rake matrix:install
• Run tests using rake matrix:spec

Note that we have configured Github Actions to automatically run tests in all supported Ruby versions and dependency sets after each push. We will only merge pull requests with successful test runs.

Credits

• Original version by Nando Vieira (http://simplesideias.com.br)
• Patches in this fork by makandra (http://makandra.com/)