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# Backup
# Added current date and time to generated file name.
docker exec preprod_safefood_vitrine_mariadb /usr/bin/mysqldump -u safefood_vitrine --password=safefood_vitrine123 drupal > $(date +"%Y_%m_%d_%I_%M_%p").sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE

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7 rwx
6 rw-
5 r-x
4 r--
3 -wx
2 -w-
1 --x
0 ---

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<?php
/**
 * @file
 * Contains \Drupal\example_module\Controller\ExampleModuleController.
 */
 
// THIS FILE BELONGS AT /example_module/src/Controller/ExampleModuleController.php

namespace Drupal\example_module\Controller;

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<?php
namespace CoreBundle\Service;


use CoreBundle\Entity\User;
use Psr\Cache\CacheItemPoolInterface;
use Symfony\Component\Cache\Adapter\AbstractAdapter;
use Symfony\Component\Cache\Adapter\AdapterInterface;

class UserTokenService

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        $credentials = base64_encode("admin:SuperSecret123");
        $apiResponse = $this->client->get("{$this->container->getParameter('api')}jwt/token",
        [
            'verify' => false,
            'headers' => [
                'Authorization' => 'Basic ' . $credentials,
            ],
        ]);

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curl --insecure -X POST -H "Content-Type: application/json" https://front.site-dev.fr:8002/api/login_check -d '{"username":"johndoe","password":"test"}'

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// Logs a notice
\Drupal::logger('my_module')->notice($message);
// Logs an error
\Drupal::logger('my_module')->error($message);
// Logs an info
\Drupal::logger('my_module')->info($message);

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SELECT * FROM key_value WHERE collection="system.schema";
UPDATE key_value SET value='s:4:"8003";' WHERE collection="system.schema" AND name="mymodule";

How to "revert" a custom module's update 'N value'
D7 only: If you need to execute an update hook another time when testing it locally you can "revert" a custom module's update 'N value' with:

UPDATE system SET schema_version = [last_successful_update_ID] WHERE name = '[name_of_module]';
Replace the square brackets plus its content. See https://drupal.stackexchange.com/a/69841/19480.

Examples:

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attributes.addClass()
Adds classes or merges them on to array of existing CSS classes.

Single class:
<div{{ attributes.addClass('my-class') }}></div>
Multiple classes:
{%
  set classes = [
    'red',
    'green',

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<div class="container">
  <img src="img_snow_wide.jpg" alt="Snow" style="width:100%;">
  <div class="bottom-left">Bottom Left</div>
  <div class="top-left">Top Left</div>
  <div class="top-right">Top Right</div>
  <div class="bottom-right">Bottom Right</div>
  <div class="centered">Centered</div>
</div>

/* Bottom left text */