Tutorials - Drupal

Method 1 : Form hook_page_attachments

This method allow to store data on drupal session using drupal session table (not php $_SESSION).
Storage is different for each users ans each visitors if anonymous

Install Redis

sudo apt-get update && sudo apt-get upgrade
sudo apt install redis-server
sudo apt install php-redis

Check

sudo systemctl status redis-server
redis-cli ping

Syntax:

\Drupal::service('page_cache_kill_switch')->trigger();

Example on a controller:

Error N°1 : PHPunit not found

If uou have a message like : Add Phpunit via composer

CAUTION : PHPunit Version >= 8 is not compatable with drupal, so use the 7

composer require --dev phpunit/phpunit:7

This is usefull if you want to do some actions just one time.

The drush comman is php-script alias src

On drupal 8 with drush

Example :
drush --uri=drupal.loc scr /modules/custom/mymodule/scripts/test-script.php

function MYMODULE_views_pre_render(ViewExecutable $view) {
 if ($view->id() == 'ABC') {
  $view->setTitle('MY CUSTOM TITLE');
 }
}

Drush 9 is finally here with some much-awaited changes. Drush 9 commands are now classes and .inc files are obsolete. Drush commands will now be based on the Annotated Command format. This will change the fundamental structure of custom Drush commands.

Example 1 : Without changing user session.

$query = \Drupal::entityQuery('node');
$query->condition(DOMAIN_ACCESS_FIELD, 'domain_id'); // Set the domain id hear
$query->condition('type', 'article');
$query->condition('status', 1);


Example: