A toolkit for building modeling frameworks like Active Record. Rich support for attributes, callbacks, validations, serialization, internationalization, and testing.

Databases on Rails. Build a persistent domain model by mapping database tables to Ruby classes. Strong conventions for associations, validations, aggregations, migrations, and testing come baked-in.

Even Rails can't be trusted not to produce malformed xml sometimes. Add this Rack middleware to the stack while you run your tests and it will monitor the responses you send, infer the appropriate validations based on content type, and raise if they fail.

A gem that verifies the integrity of a state history

ActiveRecord provides validations on app level but it won't guarantee the consistent. In some cases, like `validates_uniqueness_of` it executes additional SQL query to the database and that is not very efficient. The main goal of the gem is to provide compatibility between database constraints a...

This is the simple REST client for Address Validation API V1. Simple REST clients are Ruby client libraries that provide access to Google services via their HTTP REST API endpoints. These libraries are generated and updated automatically based on the discovery documents published by the service, ...

Client Side Validations

Adds validation methods to ActiveModel for validating dates and times. Works with multiple ORMS.

The Atlas Engine is a rails engine that provides a GraphQL API for address validation.

xlsx spreadsheet generation with charts, images, automated column width, customizable styles and full schema validation. Axlsx helps you create beautiful Office Open XML Spreadsheet documents ( Excel, Google Spreadsheets, Numbers, LibreOffice) without having to understand the entire ECMA spec...

ActiveRecord::MySQL::Strict adds validations to ActiveRecord models to make sure they do not trigger errors in MySQL strict mode.

A Ruby library for talking to the HMRC Government Gateway. This provides a builder for creating classes that can generate the XML needed complete with type information and runtime validation.

As your Rails projects evolve and grow, your model validations tend to change as well. An unfortunate side effect of this evolution is that your table- backed ActiveRecord::Base descendants end up with rows that instantiate invalid model instances. ValidData generates a report for your Rails appl...

Automatically includes Modules from app/concerns/<module_with_concerns>/<concern>.rb into <module_with_concerns> to ease monkey-patching associations and validations on ActiveRecord::Base descendents from other gems when layering schemas.

Post/zip code formatting and validation for the UK, US, CA and more.

Implement easily angular validation via form_for and form_tag helpers

Client Side Validations

Client Side Validations made easy for your Rails 5 applications

Client Side Validations

ActiveRecord style validations for Liquid content in your ActiveRecord models. See the README to get the lowdown.