As we continue in building out the HOTWire Hacker News Progressive Web App, it’s time to look at loading the comments. This is an interesting data problem, because each item has comments, and each comment has comments, and you can go recursively until you run out. The original HNWPA pushed all the comment loading into […]
Category: ruby on rails
Russian Doll Caching – Building HOTWire HNPWA #4
What if we can increase page load the speed by not duplicating work in the server rendering process?
Paginating Top Items – HOTWire HNPWA #3
If you look at the number of TopItems coming back from the API, you’ll see it’s much more than 30. How do you display all these items? Pagination! ActiveRecord has an offset method that tells the database where to start in the records it returns. If you don’t specify an offset, the database starts counting […]
Turbo Streaming Top Items – HOTWire HNPWA #2
Turbo Streaming is going to work best with ActiveRecord Models. The Hacker News model uses Item models, which can be stories, comments, jobs, polls, or poll options. In the first implementation, the Item was modeled to be as generic as the API dispensed. This time, stories and jobs will continue to be modeled as Item […]
HOTWire HNPWA #1: Setting up for Top Stories
Follow along as we build the HOTWire Hacker News Progressive Webapp, or HHNPWA. This will build on the lessons from the Hacker News Progressive Web App, and will leverage all the enhancements that come from Turbo. In the end, you can compare the two, and decide for yourself what works.
Protecting ActiveStorage Uploads
ActiveStorage is a great addition to Rails. However, if need to protect uploads through a means more secure than the security by obscurity provided by the redirect service, you need to write your own controller. Setup a demo If you don’t have an existing app using Rails 6.1, you can follow these steps. Otherwise skip […]
Updated Tutorial: How Do I Drag and Drop Items in a List?
How do you configure a more complicated Stimulus controller that manages dragging items around in a list? Let’s start with our simple ordered Todo table in html: The todo order comes from a priority associated with each item, so that we’ll be able to keep track of which item needs to be moved. We also […]
Display your Progressive Web App’s Offline Ability
Your progressive web app works offline, but do your users know that? You can use a Stimulus controller to manage your service worker, show the caching status, and hint to your user that the webpage will work offline.
Introducing Mailbox Tester
Do you send lots of emails with your Rails app, and wish you had a way to spot check them? Fix those typos, and make sure the dynamic content looks correct? It’s easy to verify there are no code bugs with Rail’s builtin Mailer preview. But how do you prevent sending someone’s wrong order or […]
Testing Tables in ActionText Using System Test
So you’ve built a fascinating, interactive addition to your ActionText page. How do you test that interactivity? You can use System Test, a feature built into Rails to run apps and test them in a web browser. This simulates real usage, especially since the browser supports CSS and Javascript. Since the Rich Text Tables tutorial […]