Things you will need:

1) MSSQL (or Sitecore) database file

2) JetBrains DataGrip

3) Docker

Steps: 

1) Extract MSSQL (or Sitecore) database file (most likely .zip)

If you are programmatically creating a node, and setting the alias is not working, make sure you have turned off the "Generate automatic URL alias" setting:

$node->path->pathauto = FALSE; $node->set('path', $st_alias); $node->save();

EntityTypeManager does not allow for filtering through moderation states, although it is in the works for Drupal 11: https://www.drupal.org/project/drupal/issues/3025164#comment-13221005. 

So if you don't want to patch core, here's how to alter your entity query for moderation states using hook_query_TAG_alter:

First add the hook funtion in your custom_module.module file:

In the case that you have a field on a node that you have some data in, and you wish to add this to the layout builder of the page programmatically, here is how to do so, with a landing page type node that has a field called 'field_accordion':

If you have been tasked with migrating a site from Sitecore to Drupal, you might have run into the same problem I did -- a complete lack of all documentation on the subject. There is one module called "sitecore_migrate" which has a Drupal.org page, and has a promising name, but left us with that drooping feeling of disappointment as it holds literally nothing. And I found out why... to make a module that migrates ANYTHING from Sitecore to Drupal automatically is extremely difficult as I found out firsthand. So I believe the guy had high hopes and then realized how impossible it would be.

D10 Upgrades from Drupal 9 can be tricky! There are usually unforeseen issues. Here are some commonly seen problems and solutions. 

The best place to find steps on how to upgrade: https://www.drupal.org/docs/upgrading-drupal/upgrading-from-drupal-8-or-later/upgrading-a-composer-based-site

Create a paragraph

use Drupal\node\Entity\Node;
use Drupal\paragraphs\Entity\Paragraph;         

$paragraph_1 = Paragraph::create([
    'type' => 'paragraph_type_1', //machine name of paragraph
    'field_text' => [
      'value' => 'Some text',
      'format' => 'full_html',
    ],
]);
        
$paragraph_1->save();

Create a nested paragraph

Abstract classes may have implemented methods, whereas interfaces have no implementation in themselves.

One can implement multiple interfaces, but not extend multiple classes (or abstract classes).

An abstract class implements an interface, which defines things that your objects needs to implement. An abstract class is a like a “default” class that should be able to be easily extended by static classes that are specific to objects.

Function Types:

replace

:$filesaved = file_save_data($file, $destination, FileSystemInterface::EXISTS_REPLACE);

With:

$fileRepository = \Drupal::service('file.repository');
$filesaved = $fileRepository->writeData($file, $destination, FileSystemInterface::EXISTS_REPLACE);

// Set the current date and time.
$node = Node::load(1);
$node->set('field_date', date('Y-m-d', time()));
$node->set('field_datetime', date('Y-m-d\TH:i:s', time()));
$node->set('created', time());
$node->save();