Defaults

Instalation

Add this line to your application's Gemfile:

gem"defaults"

And then execute:

$ bundle

Or install it yourself as:

$ gem install defaults

Usage

Here are the rules:

1. Assigned attributes have precedence over default values
2. Default values have precedence over database defaults.

Add the method call defaults to your model.

classPage < ActiveRecord::Basedefaultstitle: "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 callables (any objects that respond to .call() or .call(record)) as attribute:

classExpirationdefself.callTime.nowendendclassChecksumdefself.call(user)Digest::SHA1.hexdigest(user.name.to_s,user.email.to_s)endendclassUser < ApplicationRecorddefaultschecksum: Checksum,expires_at: ->{Time.now}end

You can override the default attributes as follow:

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

Maintainer

• Nando Vieira

Contributors

• https://github.com/fnando/defaults/contributors

Contributing

For more details about how to contribute, please read https://github.com/fnando/defaults/blob/main/CONTRIBUTING.md.

License

The gem is available as open source under the terms of the MIT License. A copy of the license can be found at https://github.com/fnando/defaults/blob/main/LICENSE.md.

Code of Conduct

Everyone interacting in the defaults project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.