Interactor + Form Object + ActiveModel::Validation

Add state maps to Rails Enums for validation on transitions.

This gem will use ActiveRecord’s existing validates_format#presence#uniqueness_of method to check whether the email parameter has a valid format, is present and is unique

This gem is part of the Deployment and Orchestration for Puppet or DOP for short. dop_common is a library for the parsing and validation of DOP plan files.

ActiveModel validations for domains with fully localization support.

Adds ActiveModel validation for domain format.

Gem to remove previously set validations

Property types that add CHECK constraints to your DB and validations to your model. Data integrity FTW.

I18n::Message is an object-oriented abstraction for looking up translations from I18n.translate. This is useful for storing lookup information in contexts such as ActiveModel validation error I18n.

Struct + validation + inheritable + default_value + etc...

Annotator for null validation of gRPC requests using `required`

Digget makes creating search endpoints easier. It allows you to put some validations on incoming parameters and use these parameters to filter models.

Make ActiveRecord defer/postpone saving the records you add to an habtm (has_and_belongs_to_many) association until you call model.save, allowing validation in the style of normal attributes.

This is a simple machine learning library written in Ruby. It provides implementations of linear regression and multiclass perceptron and visualization and validation methods to verify results. Also included are helper methods to work with training and testing data.

isort automatically sorts and organizes import statements in Ruby files. It groups imports into sections (stdlib, third-party, first-party, local), sorts alphabetically within each section, removes duplicates, and preserves comments. Supports require, require_relative, include, extend, autoload, ...

Most web applications have a lot of before/after hooks that occur when working with objects: sending a welcome email on registration, incrementing/decrementing counter caches, trigger validation on remote web services. When implemented using callbacks, all these occur without the developer knowin...

Rails validation gem which ensures no contact information can be passed through a field. Contact information is twitter handles, email addresses, and phone numbers.

SimpleForm Plugin for ClientSideValidaitons

Have trouble with advanced command line options, software dependency presence validation, handling inputs, confirmations and colorizing? Then this gem is for you. It provides you with some modules you can include to add those specific features.

Chronorails handles adding virtual attributes to your models (with suitable validations, etc) allowing you to set date and duration fields with natural language text.