UUIDParameter handles a :uuid column and validation for any model.

Signed Message Authentication and Authorization with Key validation

Run OCLint validation with oclint-json-compilation-database and fastlane :dart: :rocket:

ActiveRecord validations for danish CVR numbers

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

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.

This is a simple validation gem

Advanced ActiveModel email validation with MX lookups, domain blacklisting and disposable email blocking

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.

When creating, updating, or otherwise changing stacks in AWS CloudFormation, one must supply information such as the stack name, a list of parameters, and so on. This gem helps validate the information against the requirements of the corresponding API actions

A comprehensive gem that provides RLS-based multi-tenancy for Rails applications using PostgreSQL, including automatic tenant context switching, security validations, and migration helpers.

Gem for validation of email

Rspec model tests only comes with one line: 'pending "add some examples to (or delete) #{__FILE__}"'. This gem seeks to populate the model spec with basic tests like validations, relationships, etc..., and then some.

The auto_seeder gem generates random, valid data for Rails models using Faker. It can seed data for multiple models, handle associations and respect validations.

A macro-style method that will automatically read the database contraints (null requirements, string length, etc) and enforce those at the model level to keep validation more DRY. Provides many options to customize how automatic it is and what columns it affects.

A Ruby gem providing convenient access to the authentication API for session validation, user management, and authentication flows.

CivilService provides a base class for your service objects. With CivilService, you can use ActiveModel validations to do pre-flight checks before the service runs, and create your own result object classes to capture the results of complex operations.

Dynamic uniqueness validator to validation two fields before save in db.