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

It validates request params outside your controller logic in order to get a clean and nice code, and also helping with the documentation of the operations.

Validates translated attributes accessed with globalized accessors

A small and efficient validation library for Rails and anything that uses Ruby.

This gem can parse values, validations, documentation, types, groups and conditions of parameters from your puppet modules

Signed Message Authentication and Authorization with Key validation

The lightest of ORMs excluding magic such as properties, primary keys, associations, validations.

Strip / preprocess selected Active Record / Object attributes by creating custom setter through module prepending. Work with any Object in ruby and still allow custom setter to be defined inside the class. For exemple, can lowercase an email field during attribute setting for ActiveR...

Simple, powerful, and constraint-based validation

Help to format strings in Rails before validation of the Model.

ActiveRecord validations for danish CVR numbers

gem using RapidJSON as a backend to provide fast validation for JSON schemas

Extended validation using the German Bundeszentralamt für Steuern XML RPC API

Herbert makes development of JSON REST API servers ridiculously simple. It provides a set of useful helpers and conventions to speed up development. Input validation, logs and advanced AJAX support are baked in. Herbert is very lightweight and transparent, making it easy to use & modify.

The `handle_array_attribute` concern provides a flexible way to treat string attributes in a Rails model as arrays. This includes parsing strings based on configurable separators, optional spaces between elements, and optional maximum length validation for each element.

This is a simple validation gem

Provides a simple way to define a configuration with validation

Tools to help validate web pages. Gathers validation results from multiple sources, providing a single interface for both requests and responses.

This gem will take care of scopes, validations and normalization

Instead of scattering validations, strong parameters, and business rules across controllers and models, changesets give you one clear interface for handling data before it touches the database.