ActiveRecord::Enum fire SQL request and bypass ActiveModel::Validations, this let you play with enum and validation

RSpec matchers for testing ActiveModel custom validations in isolation from your application's models

Awesome validation and object matching library

Object Oriented Validation Library

ActiveModel validation for email. Including MX lookup and disposable email deny list

RSpec matches for Mongoid models, including association and validation matchers.

Parameter Validation and Type Coercion for Rails

ActiveRecord provides validations on app level but it won't guarantee the consistent. In some cases, like `validates_uniqueness_of` it executes additional SQL query to the database and that is not very efficient. The main goal of the gem is to provide compatibility between database constraints a...

Provide an easy way to check the consistency of the database constraints with the application validations.

Phone number validation

Send e-mail straight from forms in Rails with I18n, validations, attachments and request information.

Integrate the jQuery Validation plugin into the Rails asset pipeline

RSpec matches for Mongoid models, including association and validation matchers

RSpec matches for Mongoid models, including association and validation matchers

RSpec matches for Mongoid models, including association and validation matchers

Phone number parsing, validation and formatting.

Useful to make forms and validations. It uses MaxMind database.

AutoStripAttributes helps to remove unnecessary whitespaces from ActiveRecord or ActiveModel attributes. It's good for removing accidental spaces from user inputs. It works by adding a before_validation hook to the record. It has option to set empty strings to nil or to remove extra spaces inside...

Library for performing validations on DM models and pure Ruby object

Validations mixin for Ruby objects and support for Lotus