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Rails lets you intercept and observe emails sent out by your application. This is incredibly useful for staging / preview environments and audit log trails
ActiveRecord default_scopes are incredibly useful for some features like soft delete. But sometimes we need to undo a scope, so that's where unscope comes in.
Ever wondered how to add the Unsubscribe link to your emails? We can do that using ActinoMailer in Rails with the List-Unsubscribe header and GlobalID
Learn how Rails loads yaml configuration and how you can define your own configuration options with the Rails config object
How to save emails with attachments using ActionText and ActiveStorage
Learn how to route inbound emails with ActionMailbox in your Rails app
Properly sending email notifications consists of a lot more than just a To and From. The In-Reply-To, References, and BCC headers are important for sending email notifications to your users.
Request Variants in Rails allow you to render different HTML depending on the device defined in the User Agent header.
Sometimes you may need to wrap and reraise an exception. Ruby 2.1+ makes this easy by letting us raise a new error, pass in the old one, and automatically assigns the exceptions "cause" which is the original exception.
Hotwire & Turbo.js are designed to make realtime updates to your page. So how do you notify the user with flash messages or toasts? That's what we're covering in this episode.
The browser has a built-in Geolocation API that you can use to get the user's location (with permission) in Stimulus and use it with Rails
Creating and testing a Rails Engine can seem daunting. In this video, we'll walk through how to create (and test!) a Rails engine from scratch
Custom targets allow us to render nested comments, update forms, and append new comments with Turbo stream events using Hotwire
Updating slugs
Fragment caches can be hard when users have different permissions and are allowed to do different things. We can solve this problem with a little Javascript and greatly improve the usefulness of our fragment caches.
Modal forms are common, but how do we do them with Hotwire to render validation errors and redirect on success?
Rails 6.1 introduces a new feature called "disallowed_warnings" which causes exceptions to be thrown anytime deprecated code is run. This makes it really easy to track down deprecations in your code and fix them quickly.
Testing a gem or your Rails app against multiple Ruby and Rails versions is super useful, but we also take it a step further and test our gem against several different databases too
ActsAsTenant needed some maintenance so we're going to walk through the steps of refactoring the gem and Rspec test suite
Bulk operations like "delete all", "publish all", etc require a little bit of Javascript and a special controller for handling them.
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Screencast tutorials to help you learn Ruby on Rails, Javascript, Hotwire, Turbo, Stimulus.js, PostgreSQL, MySQL, Ubuntu, and more.
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