JekyllFileWizard is a comprehensive gem designed to streamline the management and dynamic updating of Jekyll site structures. It automates the process of checking, creating, and updating various files in a Jekyll project, including HTML files, data files, and more. The gem offers features like dy...

Define boundaries for verification, validation, and normalization.

A gem for Ruby on Rails which wraps up functionality of maintaining values for forms to factor cases where a POST fails model validation while also providing a means to succinctly produce relevant error messages.

A Ruby Gem for GTIN, UPC, EAN and ISBN barcode lookup and validation using the API on ean-search.org

ActiveForm provides a DSL for defining complete XHTML forms with validation.

ActiveModel/ActiveRecord Validation Collection For Mainly Japanese

Provides a small persistence framework, including models (programmatic description of entities), validation rules and relationships between models.

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

A gem for validation, without all the dependencies.

Allows you to test whether your database schema matches the validations in your ActiveRecord models.'

Using this gem you can validate an XML document using a ISO Schematron validation file

Rails plugin that uses George Carlin's list of seven dirty words (aka swear words, aka cuss words) to check for decency on ActiveRecord model attributes.

The Brazilian Business Tax ID (CNPJ) validation and formatting, more functions to come

== FEATURES/PROBLEMS: * a simple FriendMailer object * email templates for HTML and plain text alternative * configurable amount of friends * support for including a user submitted message in the email * support for HTML as well as XML (nice for Flash integration) * server-side validation * erro...

Add common validations.

Gifts Ruby Sequel with heavily armed validations.

JWT authentication middleware with multi-tenant support, company validation, and subdomain isolation.

Adds save!, update!, create!, and find_or_create! to sequel models.

Serializes `has_many` relationships into a single column while still doing attributes, validations, callbacks, nested forms and fields_for. Easy NoSQL with ActiveRecord!

Manage text field attribute serialized as an array, hash, etc. Add per-item validation