A Guilded (http://github.com/midas/guilded/tree/master) component that highlights form fields when they are selected or when they have a validation error.

Tiny plugin for MongoMapper to sanitize strings before validation.

Modify model fields before validation

Validation layer for any business logic with a declarative rule-oriented API.

aids for creating and calculating error rates using target-decoy searches and sample validation.

Provides basic ORM functionalities like CRUD operations, transaction support, and custom validations.

This gem allows you to download a file. However, it will also check to see if a MD5 file exists at the source and compare against the destination for validation

SQLite constraints in migrations similiar to ActiveRecord validations

ActiveModel-compliant form objects for rails app. Forms have data and behavior. Let them be the objects they want to be. Plus, get presentation- specific validation logic out of your models.

Make ActiveRecord Validation easier to share as Schema

Nested Attributes Validation Collection for Rails

A lightweight Web Function client for Ruby. Web Function is a radical rethinking of API design: no verbs, no nested URLs, no bloat. Just function calls over HTTP. This gem lets you invoke endpoints defined in a package, with full support for argument validations, error triples, and bearer auth.

A gem that generates Ruby classes for JSON schema validation of API endpoints based on their Swagger documentation.

FormGuard provides a simple way to prevent bot form submissions in Rails applications using honeypot fields and timestamp-based validation.

RStore makes batch processing of csv files a breeze. Automatically fetches data files, directories, URLs :: Customizable using additional options :: Validation of field values :: Descriptive error messages :: Safe and transparent data storage using database transactions

Provides Operation System hashes and validations for rspec-puppet

EnvCheck is a lightweight Ruby gem that ensures your required and optional environment variables are present and valid before your app boots. Features smart config discovery (.env_check.yml or config/env_check.yml), comprehensive type validation with 9 built-in validators, .env loading with doten...

Allow to store ActiveModel validations in ORM.

Validate event schema with JSON Schema with json-schema ruby library.

ActiveModel Bank data validation