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.

The `handle_array_attribute` concern provides a flexible way to treat string attributes in a Rails model as arrays. This includes parsing strings based on configurable separators, optional spaces between elements, and optional maximum length validation for each element.

This is a simple validation gem

Provides a simple way to define a configuration with validation

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...

This gem sets the digested value before validation and validates uniqueness of the digested value.

A Ruby library for terminal text styling with ANSI colors and effects. Provides an elegant, functional API with immutable style objects that can be composed using the >> operator. Supports standard colors, hex values, and comprehensive text effects including bold, faint, italic, underline, overli...

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

Bare-bones minimum slugs. No validations or versioning.

A Rails controller concern which makes it easy to encapsulate validation and processing of complex incoming data into command classes.

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

Mobile MSISDN detection & validation. Only useful whenever your'e a Mobile Operator 3rd Party and receive MSISDN headers.

Small and extensible data validation toolkit

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

Validate presence/absence of resource creation/update and relationship update payloads, as well as types related resources

Having to validate method parameters and/or the result of method is a quite common and repetitive task. Tchae is an attempt to capture this task in a small yet generic reuseable library. Tchae provides validated variants of the standard define_method ruby methods , that will create the same metho...

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

Provides a OneOfManyValidator for Rails validation. This allows you to validate that one of a set of fields should be required, but no particular field itself is required.

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...