Stimulus.js Tutorial: Listening to onScroll Events for a Sticky Table Header

In one of my projects, I had a table with a lot of rows of uniform data. I started using a JQuery plugin called Sticky Table Headers. It worked really well, but I’ve been experimenting with moving different components of my code to Stimulus, where it made sense, so I thought I’d try to replicate […]

Stimulus.js Tutorial: How do I filter data in a list or table?

Let’s work off the previous Todo tutorial and add a way to filter those Todos using just Stimulus. We will only need to work on the todos/index.html file, and to add one Javascript controller. This example will highlight how Stimulus enhances your server rendered HTML, without the need to build complicated constellations of Javascript objects. […]

Stimulus.js Tutorial: How Do I Remotely Update My Model from a checkbox?

First, I’m going to assume you’ve read the Stimulus handbook, cover to cover, like I have. Let’s say you have a Todo app, with a model Todo that has a string title, and a boolean field, completed. We are going to use Stimulus to update our model remotely on the server, when we check off […]

Stimulus.js Tutorial: How Do I Drag and Drop Items in a List?

You’ve heard about Stimulus in the DHH press tour. You’ve read the Stimulus Handbook. How about a more complicated example than what you’ve seen? Here’s a tutorial on using Stimulus to drag and drop items around in a list. Let’s start with our simple ordered list in html. Notice that each item has a id associated […]

How Do I Authorize Only the Creator of a Post to Update or Delete it?

Let’s say your Rails app has an ActiveRecord data type, Post, and you want to only authorize the creator of that Post, who is of type User, to update or delete the record. One way to prevent the wrong User from editing the Post is to keep track of the creator with a foreign key, […]

How do you get Devise working with your Rails API?

Let’s say you’re building an app on iOS, and you’ve already built an API and you’ve chosen Devise, but you’re stuck because you cannot authorize your user like you can in your web browser. What do you do? One area where where Devise seems to be lacking support is API authentication, especially with HTTP requests […]