Awesome validation and object matching library

Declare ActiveModel validations fluently

Provides an ActiveModel validation that checks if an attribute represents a legal BSON::ObjectId .

simple_form with client validations

If you need a way to easily skip validations on some attributes and only in certain cases, this gem will allow you to do it in a clean and elegant way.

Reuse your Rails model validations on the client-side.

Ember Plugin for ClientSideValidaitons

A library reflex to provide realtime form validation using the validations you already have

Rumale::ModelSelection provides model validation techniques, such as k-fold cross-validation, time series cross-validation, and grid search, with Rumale interface.

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

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...

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

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

Phone number validation

Parameter Validation and Type Coercion for Rails

Integrate the jQuery Validation plugin into the Rails asset pipeline

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

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