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Validations for Plain Old Ruby Objects
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README.md

Validus

Gem Version Dependency Status Code Climate

Add validation support to Plain Old Ruby Objects.

Installation

Add this line to your application's Gemfile:

gem 'validus'

And then execute:

$ bundle

Or install it yourself as:

$ gem install validus

Usage

Include this module in a target class and override the validate method. Use valid? to perform the validation.

Example:

require "validus"

class Person
  include Validus

  attr_accessor :name, :age

  def initialize
    @name = ''
    @age  = 0
  end

  def validate
    errors.add(:name, 'cannot be blank') if name == ''
    errors.add(:age, 'must be greater than 0') if age <= 0
  end
end

person = Person.new
person.valid?                    # => false
person.errors.for(:name).to_a    # => ['cannot be blank']
person.errors.full_messages.to_a # => ['name cannot be blank', 'age must be greater than 0']

person.name = 'John'
person.age  = 20

person.valid?        # => true
person.errors.empty? # => true

See documentation for more details.

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Added some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request

License

Copyright (c) 2012-2015 Bob Nadler

MIT License

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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