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Continuing on in our chat app with Hotwire, we are going to be implementing the ability to indicate to users that they have unread messages in conversations.
To provide clean integrations with Rails plugins, we can use lazy load hooks to add callbacks for when classes are loaded.
Let's add the ability to edit the contents of our messages and broadcast page refreshes so that everyone can see the latest version of our messages.
Showing users that they have unread messages is nice but it would be nicer if we scrolled them to the start of those unread messages when they visit a conversation which is what we will implement in this lesson.
In this lesson, we will look at an extremely simple way to implement keeping track of and displaying the online/logged in status of users in our chat application.
Enumerable provides a suite of sorting, filtering, iterating functionality to any collection class in Ruby. It's easy to implement and use, so let's see how to use it.
The Rails Authentication generator is getting new test helpers. We'll take a look at how to use them with integration tests and how to extend them to work with system tests too.
Learn how to write your own test helpers to build assertions. In this lesson, we're adding some test helpers to the turbo-rails gem to assert that turbo-frame tags in the response.
Rails now ships the Trix editor as a separate gem (action_text-trix) instead of being included in ActionText. This allows for separate releases independently of Rails.
Managing meta tags can be a pain, but we can use Rails features like Current Attributes, ActiveModel and render_in to create an easy meta tag manager from scratch.
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