Replace complex regex patterns with simple, readable methods for string validation and manipulation

Rails plugin that provides a validates_ip_format_of method to ActiveRecord models. IPs are validated by regexp. IP validation. Validate IP.

A simple gem for email validation.

EachValidator that adds a parent model's association's validation errors to the parent model

An ActiveModel validator utilizing the built in URI parse methods to provide a rich semantic API for URI validation

Rails' default update_attributes behavior is that when any validation fails, none of the data gets saved. However, in some instances this is not the most ideal behavior. If you import partial data which users then have the task of completing, not saving partially completed forms can create a real...

Store model settings and properties in JSONB columns with a clean DSL, type casting, default values, and validations. A modern alternative to separate settings tables.

A Ruby library for working with Software Bill of Materials in SPDX and CycloneDX formats. Supports parsing, generation, validation, and format conversion.

mydry is a rails generator that enables you to work in a drier way, using the information you already provided in the migration to create your models, for example all the non nulls, uniques, numerics and relations defined in the database are already defined in the model with the corresponding val...

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.

Parameter validation extension for Sinatra

Adds an abstract EachValidator superclass that you can use to create localizable validations.

Small and extensible data validation toolkit

Hashie2 + ActiveModel 3, offering declared properties, validations, JSON serialization/deserialization

Validates polish identification numbers NIP, PESEL, REGON. Can be used in any ruby script or integrated with Rails validation

Allows Kumi schemas to be written as plain text with syntax validation and editor integration.

This gem is very fast C++ code for calculating AUCs on results of cross-validation. It is specific to the crossval database schema, which has not been released yet. Chances are you will not find this very useful unless you are the author. It is in gem form to ensure that each lab machine can c...

A composable application toolkit, providing data entities and collections, transforms, contract-based validations and pre-built operations. Architecture agnostic for easy integration with other toolkits or frameworks.

Hat-Trick brings together jQuery, validation_group, and Ajax to make multi-step forms awesome. It tries to insulate you from this complexity by providing a simple yet powerful DSL for defining the steps of your form and their behavior.