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(Image credit: Ilia Yefimovich)
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#! code: Drupal 11: Node Display Mode Preview Form
This is part five of a series of articles looking at HTMX in Drupal. If you are interested in reading more then there will be a list of related articles at the end of this article.
When I was thinking about ideas on demonstrating HTMX in Drupal I implemented things like infinite scroll, a tabbed interface, and a cascading select form. I basically recreating some things that I had done in non-Drupal HTMX inside a Drupal module.
I then had an idea to create something that I might actually find useful in my day to day work as a Drupal developer. This was some way of displaying nodes in different view modes.
In this article we will look at creating a simple form that allows users to enter a node ID and a view mode and see the node rendered in that view mode.
All of the code contained in this article can be found in the Drupal HTMX examples project on GitHub, but here we will go through what the code does and what actions it performs to generate content.
Just like the other articles on HTMX, I'm going to start with the basics and define the route.
The RouteThe route we need here just needs to point the path /htmx-examples/display-mode-preview at our form class.
drupal_htmx_examples_display_mode_preview_form: path: "/htmx-examples/display-mode-preview" defaults: _form: '\Drupal\drupal_htmx_examples\Form\DisplayModePreviewForm' _title: "HTMX Display Mode Preview Form" requirements: _permission: "access content"There isn't anything unusual about this route, it's just a regular form route.
Let's create the form for this route.
The FormThe form class has a couple of injected dependencies, which are as follows:
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(Image credit: Valerio Muscella for NPR)
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