rightgraphic.blogg.se - Phoenix liveview form

#PHOENIX LIVEVIEW FORM HOW TO#
#PHOENIX LIVEVIEW FORM INSTALL#
#PHOENIX LIVEVIEW FORM UPDATE#
#PHOENIX LIVEVIEW FORM CODE#

If you see this page, then congratulations on running your first live view application. You should have a page that looks like this: To ensure that everything is running correctly, run the command below and visit the link https:localhost:4000 to see the running application.

#PHOENIX LIVEVIEW FORM INSTALL#

$ mix deps.get & cd assets & npm install & cd. Once the project has been cloned, change into the project directory and run the command below in the terminal to install the dependencies and compile the application.

#PHOENIX LIVEVIEW FORM HOW TO#

While, this is not an article on how to use Phoenix Web Framework, I will explain any concept that I feel requires more emphasis. To follow along, please ensure that you have installed Elixir on your computer and also have have Phoenix Web Framework installed as well.

#PHOENIX LIVEVIEW FORM CODE#

While I will be doing and showing the code throughout this article, you can follow along by starting a new project by cloning the project from Github repository and follow along. The project in itself is a writers management web application, which aims to help in the management of a team of writers.įor the purposes of this example, I have stripped down most of the nuaces such as authentication/authorizations in order to keep the example focused only on how to use phoenix live view in an application context, especially, on real time validation. In order to showcase the simplicity that phoenix live view bring to web application development, I decided to use an example based on a project that I am working on. I initially wanted to go for a simple example such as a counter or the more common temperature example but ultimately decided against it. Messages to the client.It has taken me a long time to figure out the best example to showcase the power of elixir live view. The LiveSocket with a custom channel that allow passing granular

Using channels with LiveView for better UX.

(but sadly not nice enough for my edge case).

Using hooks and events to make LiveView and Alpine play nice together

Integrating Phoenix LiveView with JavaScript and AlpineJS.

If you enjoy reading about this topic, I encourage you to read those twoĪrticles I stumbled upon during my research on this subject. Pretty useful to documented as it’s pretty easy to implement and Iĭidn’t find anything similar online. Numerous attempts at dealing with that issue and I found it would be While I didn’t end up needing that method, I found this trick during my This gives pretty useful informations that can allow to hook to LiveView The first thing I thought about was to use LiveView hooks as documented Only then (to avoid the quick text flash mentioned earlier). Submission was completed so that I can make sure to reset the To deal with this, I wanted a way to tell from JavaScript when the form Is great, except it leaves us with the open even if the

#PHOENIX LIVEVIEW FORM UPDATE#

The input state didn’t change, it doesn’t need to update the DOM. If we just added a bunch of spaces to the existing text and the backendĭecides to trim the value, Phoenix is smart enough to notice that since Phoenix resets the DOM to the and everything is good, but In the happy path where the form submission triggers a DOM update Processed by the backend and the DOM is updated, which causes a quick

I don’t want to reset the state back to the on submission,īecause it would temporarily show the old text until the update is

Submitted, it triggers a Phoenix event that might or might not update

For reactivity, this is done in JavaScript. To give the context, I have a that is transformed to a Processed by the backend even if that event didn’t trigger a DOM Typically, I wanted to know when a form was done being submitted and Intercept some events from the LiveSocket to take specific action in Recently, I was dealing with a Phoenix LiveView where I wanted to