It will handle validations inline

Extra matchers to test model validation

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

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

It will handle ajax validations.

ActiveModel validation for email. Including MX lookup and disposable email blacklist

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...

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

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

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.

Phone number validation

Integrate the jQuery Validation plugin into the Rails asset pipeline

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

CouchRest Model provides aditional features to the standard CouchRest Document class such as properties, view designs, associations, callbacks, typecasting and validations.