DanLaufer

if($node) {
    // we have a node, so use headline in hero, or fall back to node title
    if($node->field_hero_section && $node->field_hero_section->getValue() && $node->field_hero_section->getValue()[0]) {
        $paragraph = $node->field_hero_section->getValue()[0];
        $paragraph_entity = \Drupal\paragraphs\Entity\Paragraph::load( $paragraph['target_id'] );
        return $paragraph_entity->field_headline->value;
    } else {
        return $node->getTitle();
    }
}

bdlangton

Render custom blocks

$bid = 'myblock';
$block = \Drupal\block_content\Entity\BlockContent::load($bid);
$render = \Drupal::entityTypeManager()->getViewBuilder('block_content')->view($block);

Render plugin blocks

$block_manager = \Drupal::service('plugin.manager.block');

keopx

<?php

/**
 * Set redis configuration.
 */
/** @see: https://docs.platform.sh/frameworks/drupal8/redis.html */
if (extension_loaded('redis')) {

  // Set Redis as the default backend for any cache bin not otherwise specified.
  // $settings['cache']['default'] = 'cache.backend.redis';

jez500

<?php

/**
 * Implements hook_form_alter().
 */
function MYMODULE_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id) {
  $view_names = array('my_view_name');
  $view = $form_state->getStorage('view');
  if ($form_id == 'views_exposed_form' && in_array($view['view']->id(), $view_names)) {
    // Do some shilzzle.

himerus

<?php

/**
 * @file
 * Contains various helper functions.
 */

use Drupal\taxonomy\Entity\Term;

/**

WengerK

<?php
/**
* @file
* Contains \Drupal\my_contact\Form\ContactForm.
*/

namespace Drupal\my_contact\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;

JeffTomlinson

<?php

namespace Drupal\my_module\Services;

use Drupal\Core\Config\ConfigFactory;

/**
 * Class MyService.
 *
 * @package Drupal\my_module\Services

crittermike

<?php
/**
 * @file
 * Defines a dropdown widget for integer fields.
 */

namespace Drupal\nba_content_core\Plugin\Field\FieldWidget;

use Drupal\Core\Field\FieldFilteredMarkup;
use Drupal\Core\Field\FieldItemListInterface;

illepic

<?php

use Drupal\file\Entity\File;

// public://images/blah.jpg
$drupal_file_uri = File::load($fid)->getFileUri();

// /sites/default/files/images/blah.jpg
$image_path = file_url_transform_relative(file_create_url($drupal_file_uri));

Jaesin

<?php

// Delete all nodes.
entity_delete_multiple('node', \Drupal::entityQuery('node')->execute());

// Delete all files.
entity_delete_multiple('file', \Drupal::entityQuery('file')->execute());

// Delete all taxonomy terms.
entity_delete_multiple('taxonomy_term', \Drupal::entityQuery('taxonomy_term')->execute());