Let’s break down some key differences between Drupal 7 and Drupal 8+:
Templating Engine:
Drupal 7: PHP Template
Drupal 8+: Twig template engine (more secure and flexible!)
Programming Paradigm:
Drupal 7: Traditional PHP
Drupal 8+: Object-oriented programming with Symfony components for a modern architecture!
Configuration Management:
Drupal 7: Lacks native configuration management
Here are the two methods to delete the nodes in Drupal 8 programmatically.
1) Using NID
use Drupal\node\Entity\Node;
$nid = 123;
$node = Node::load($nid);
// or
$node = \Drupal::entityTypeManager()->getStorage('node')->load($nid);
// Check if node exists with the given nid.
if ($node) {
$node->delete();
}
2) Using some criteria (for example, older than 90 days)
This is mainly for deleting all testing data that you may have created using devel generate module or similar to it
If you have devel php installed in your drupal site you can directly run this is the browser or you may have to use it in the custom module
I would recommend to use devel php module as it is much simpler and easy to use just make sure you don't have devel modules in your production environment and if you need to delete nodes in the production then just install devel to run this code and then uninstall
Following is an example of the multisite structure with Drupal. For simplicity, other Drupal core folders and files are not listed.
The example above assumes that you have the video file ID. This could be the case when you are converting video fields to media.
To do this you have to use the Remote video media type.
use Drupal\media\Entity\Media;
$video_media = Media::create([
'bundle' => 'remote_video',
'uid' => 1,
'name' => 'DrupalCon Prague 2022 Driesnote',
'field_media_oembed_video' => [
'value' => 'https://www.youtube.com/watch?v=Hmit4ET-l3Q',
],
]);
$video_media->save();
Using Media in Drupal (versions 8+) is a much better option than using old-school image fields. You can add all types of fields to Media to enrich your images, videos, and other media types with additional information, and you can also reuse Media. All of that cannot be easily done if you are using regular image fields.
Just like Content types, you can have multiple different types of Media. By default when you enable the Media module you get the following types:
To load node details using its id in Drupal 8+ uses the following syntax:
$node_details = Node::load($nid);
$node_details->field_FIELD_NAME->value;
We can load multiple nodes in Drupal 8+ using load multiple() function. Note that the parameter should be an array of ids.
Drupal's Form API #states property allows to easily show or hide, enable or disable, require or collapse form fields based on values selected or entered in other fields on that form or anywhere else on the page.
Dependency Injection is a design pattern that helps decouple the different components of a software application. It is a software design pattern that helps to manage the dependencies between different components in a software system. It involves passing the required dependencies into a class, rather than letting the class create or locate them itself.
Drupal is a content management system that allows you to create and manage website content in an organized way. One of the ways to create content in Drupal is by creating a node programmatically. A node is a fundamental building block of a Drupal website and represents a piece of content such as an article, a page, or a product.
To create a node programmatically in Drupal 8+, you will need to use the Drupal's Entity API, specifically the Node class. Here's an example of how you can create a basic node:
