Event Sourcery with the conventions of Rails. Because combining two great powers is always better than not.

This library allows the easy implementation of server-side and client side tracking of various events.

An Event Store

ActionController::Parameters does not inherit Hash since Rails 5.0. This Gem will never cause an error even if you call Hash's method on ActionController::Parameters.

Evernote exporter/analyzer

A Gem for the plugin: https://github.com/evilmarty/activity_stream

Ewigkeks is a library for integrating the evercookie JavaScript library into your Rails application. It saves and retrieves key-value-pairs to/from different client/browser storages.

utility methods for creating excel query files (iqy) and parsing excel date input

Provides a concise DSL to map, validate and import data from an excel sheet into your ruby app

This library provides basic functionality for recording error logs during project execution.

Exception notification for Rails apps(+ More Info!)

Gem that receive errors from exception_notification gem and show it grouped on pages

exception_notification_sns gem is used for sending application extensions to aws sns. It extends exception_notification gem, uses aws-sdk-v1 gem to push exception notificatons to amazon sns

Exceptron comes from the future to make your exceptions rock!

The inverse of `select` on an ActiveRecord::Relation. Use to avoid loading large columns (e.g. texts or blobs).

Provides optional javascript url helpers, CORS configuration and a pool of routes into which applications can dump their host information and routing table. Other applications can then utilize application namespaced helper methods for redirecting, drawing links, placing cross-origin XHR requests,...

Exhibit is a simple gem to generate and work with presenters in Rails 3. It is based on the solution Ryan Bates created in Railscasts Pro episode #287.

Exnum is enum extention for Rails. This gem extends enum about i18n and associated parameters.

Expat adds a mountable web application to your development environment that will enable you to manage the i18n yaml files of your Rails application.

This gem automatically instruments your Ruby on Rails 4.2/5.x applications using InfluxDB for storage.