Rails validations for Belgian Government Registration Numbers (Rijksregisternummer)

error_messages_for_helper provides a simple helper to show ActiveRecord validation errors (just like old helper error_messages_for for Rails-2.3.x).

Parsing, conversion, and validation for dates, phonetic names, and numbers.

Intelligently applies a maxlength attribute for text fields based on column constraints and validations

Validate the phone number and content of an SMS Message. This gem does not send SMS messages. It just makes sure the arguments are valid.

Object mutations that encapsulate business logic. RubyMutant makes it simple to add complex logic to objects, in with automatic validation and execution.

Parameters validation and coversion.

Command line tool to allow creation, validation, and installation of ssl certificates on sites on the server.

Keep your code DRY by inferring column validations from table properties! Automagically validate presence, length, numericality, and inclusion of ActiveRecord backed columns.

Simple type validation for plain ruby object attributes that perform conversions whenever possible.

Subdomain validator for Rails application.

An utility which provides a class method `strip_fields`. It accepts list of fields and removes leading and trailing whitespaces before validation.

An ActiveModel validation for checking if an attribute's values are a subset of another set.

Add validation for not existing field. Useful as spam protection in forms.

Validate your Rails forms remotely in real time using ActionCable. Also validate client side using native HTML validations and present them in a much 'prettier' format.

Add state maps to Rails Enums for validation on transitions.

The SDK allows framework independent two-factor authentication for your web application. Client handles both token generation and validation.

In this version, this toolkit allows the generation, validation and formating of CPF's and CNPJ's. For now, the use is exclusive to Brazil.

CubitComponents provides a set of layout-focused ViewComponents with built-in Tailwind CSS support and utility class validation.

Convert between ISO comment sheet DOCX and structured YAML with schema validation.