Code

Add a new field:

Example 1 Automatic update:

1. Update baseFieldDefinitions() of the Entity.

2. Apply update from a mymodule_update_N(). Ex:

Example : Change title

Example : Table.

$header = ['#','Name', 'Mail'];

$data = [

  [1,'Name 1', 'Mail1@example.com'],

  [2,'Name N°2', 'second@example.com'],

];

Example : List

Methodes:

drush_invoke (For the current site)

drush_invoke($command, $arguments = array());



drush_invoke_process

This creates a new process in a new Drupal instance. There for you must specify the site alias.

Get current theme.

$theme = \Drupal::theme()->getActiveTheme();

Theme name:

$theme_name = \Drupal::theme()->getActiveTheme()->getName();

Those functions [ menu_set_active_item(), menu_set_active_trail(), menu_get_active_trail(), menu_link_get_preferred() ] are removed on D8 and replaces with drupal 8 service. You can use following example to get data and to edit.

Example :

Use custom twig template or alter an existence.

Create a custom module then use hook_theme()

Those are three functions allow you to determine the nature of a variable, with a bit different.

Comparison table

There are several methodes.

Change date format Using custom module.