custom_nodeformactions-8.x-1.x-dev/custom_nodeformactions.module

<?php

/**
 * @file
 */

use Drupal\node\NodeInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Drupal\node\Entity\Node;

/**
 * Implements hook_form_alter().
 */
function custom_nodeformactions_form_alter(&$form, FormStateInterface $form_state, $form_id) {

  if ($form['#node']) {

    $config = \Drupal::config('custom_nodeformactions.settings');
    $addmorebuttonlabel = $config->get('custom_nodeformactions.addmorebuttonlabel');
    $addcopybuttonlabel = $config->get('custom_nodeformactions.addcopybuttonlabel');
    $node_typeslist = $config->get('custom_nodeformactions.node_types');

    if (empty($addmorebuttonlabel)) {
      $addmorebuttonlabel = "Add More";
    }

    if (empty($addcopybuttonlabel)) {
      $addcopybuttonlabel = "Copy Node";
    }

    // Adding custom validation for the welcome page type field.
    if (preg_match('/node/', $form_id)) {
      // Do some stuff.
      $node_type = $form['#process'][1][0]->getTargetBundle();

      if ($node_typeslist[$node_type] !== 0) {

        // If ($form_id == 'node_'.$node_type.'_edit_form'){.
        $form['actions']['saveandanother'] = [
          '#type' => 'submit',
          '#value' => t($addmorebuttonlabel),
          '#validate' => ['node_form_validate'],
         // Use default and an additional submit handler.
          '#submit' => ['node_form_submit', 'custom_nodeformactions_node_form_submit_saveandanother'],
        ];
        // }
        if ($form_id == 'node_' . $node_type . '_edit_form') {
          $form['actions']['saveandandcopy'] = [
            '#type' => 'submit',
            '#value' => t($addcopybuttonlabel),
            '#validate' => ['node_form_validate'],
           // Use default and an additional submit handler.
            '#submit' => ['node_form_submit', 'custom_nodeformactions_node_form_submit_saveandandcopy'],
          ];
        }

      }
    }
  }
}

/**
 *
 */
function custom_nodeformactions_node_form_submit_saveandanother($form, FormStateInterface $form_state) {
  $node_type = $form['#process'][1][0]->getTargetBundle();
  $url = Url::fromRoute('node.add', ['node_type' => $node_type]);
  return $form_state->setRedirectUrl($url);
}

/**
 *
 */
function custom_nodeformactions_node_form_submit_saveandandcopy($form, FormStateInterface $form_state) {
  $node = \Drupal::routeMatch()->getParameter('node');
  if ($node instanceof NodeInterface) {
    // You can get nid and anything else you need from the node object.
    $nid = $node->id();

    $node = Node::load($nid);

    $nodeDuplicate = $node->createDuplicate();
    // Edit title or something so you can find cloned.
    $nodeDuplicate->save();

    \Drupal::messenger()->addStatus(t("Node has been created. <a href='/node/@id/edit' target='_blank'>Edit now</a>", [
      '@id' => $nodeDuplicate->id(),
      '@title' => $nodeDuplicate->getTitle(),
    ]
          ));
  }

}