ConditionalValidation simplifies adding validation flags and then querying state to determine when associated validations should be run on models.

Helper to customize the validation messages in Hanami application views.

Mongoid Plugin for ClientSideValidations

Formtastic Plugin for ClientSideValidaitons

StripAttributes automatically strips all ActiveRecord model attributes of leading and trailing whitespace before validation. If the attribute is blank, it strips the value to nil.

Several methods in ActiveRecord skip validations, callbacks, or both. In my extremely humble but also extremely correct opinion, it's too easy to accidentally use these. Do Not Want kills those methods dead so you won't cut yourself on them: >> User.new.update_attribute(:foo, 5) DoNotWa...

Turbolinks Plugin for ClientSideValidaitons

Adds several handy expectations for testing ActiveRecord model validations, similar to what Shoulda provides.

Adds type validation for classes with ActiveModel::Validations.

A Rake task investigates the application's models definition, then tells you unique validations that do not have DB indexes.

To ensure Validations that continue to have issues are addressed by developers. This is done by logging the failure. When a specific failure continues to be an issue, a developer can look into the problem.

Store Rails validations as JSON to serve via api and drive complex validation logic.

MongoMapper Plugin for ClientSideValidaitons

Live validator is a Rails Guilded (http://github.com/midas/guilded/tree/master) component that will reflect ActiveRecord validations and use them to live validate forms. Live validator uses the Live Validation (http://www.livevalidation.com) JavaScript library to accomplish this task. It also...

It allows you to specify validations for method arguments, using `validate_args` to supply validation rules of a hash or array.

Another validation library

Rails Active MCP enables secure Rails console access through Model Context Protocol (MCP) for AI agents and development tools like Claude Desktop. Provides safe database querying, model introspection, and code execution with comprehensive safety checks and audit logging. Features include: • Sa...

It will handle ajax validations.

Object Oriented Validation Library

Extra matchers to test model validation