KawaiiValidation

An ActiveRecord extension that adds more kawaii validation syntax.

Motivation

The "Sexy Validation" syntax is not at all sexy.

Installation

Gemfile:

gem 'kawaii_validation'

And then execute:

$ bundle

Supported versions

Ruby 2.0, 2.1, 2.2, 2.3, 2.4, and 2.5 (trunk)
Rails 3.2.x, 4.0, 4.1, 4.2, 5.0, 5.1, and 5.2 (edge)

Usage

With this gem bundled, the validates method takes a block argument, and the following two new DSLs will be enabled:

Original code (so-called "Sexy Validation")

class User < ActiveRecord::Base
  # validations begin
  validates :name, :age, presence: true
  validates :name, length: {maximum: 255}
  validates :age, numericality: {greater_than: 0}
  # validations end

  ...
end

validates + block

class User < ActiveRecord::Base
  validates do
    presence_of :name, :age
    length_of :name, maximum: 255
    numericality_of :age, greater_than: 0
  end

  ...
end

validates + attributes + block

class User < ActiveRecord::Base
  validates :name do
    presence
    length maximum: 255
  end

  validates :age do
    presence
    numericality greater_than: 0
  end

  ...
end

Contributing

Send me your pull requests!

kawaii_validation