service_request.module

<?php

/**
 * @file
 * Contains service_request.module.
 *
 * This is a content type to run an georeport v2 server.
 */

use Drupal\Core\Entity\EntityInterface;
use Drupal\paragraphs\Entity\Paragraph;


/**
 * Implements hook_entity_presave().
 */
function service_request_entity_presave(EntityInterface $entity) {

  // Service Request Creation.
  if ($entity->bundle() == 'service_request' && !$entity->id()) {
    // Get some relevant config.
    $config = \Drupal::configFactory()
      ->getEditable('markaspot_open311.settings');
    // Add an intitial paragraph on post
    // Status when inserting.
    $status_open_start = $config->get('status_open_start');
    // todo: put this in config.
    $status_note_initial = t('The service request has been created.');

    $paragraph = Paragraph::create([
      'type' => 'status',
      'field_status_note' => array(
        "value" => $status_note_initial,
        "format" => "full_html",
      ),
      'field_status_term' => array(
        "target_id" => $status_open_start,
      ),
    ]);
    $paragraph->save();

    $entity->field_status_notes = array(
      array(
        'target_id' => $paragraph->id(),
        'target_revision_id' => $paragraph->getRevisionId(),
      ),
    );
  }
  // Service Request Update
  elseif ($entity->bundle() == 'service_request' && $entity->id()) {

    foreach ($entity->field_status_notes as $paragraph) {
      // Access the paragraph entity like this:
      $statusNotes[] = $paragraph->entity;
    }
    // Get new Status from Taxonomy Reference.
    $newStatus = $entity->field_status->target_id;

    // Load last Paragraph and Update the Status there.
    $paragraph = Paragraph::load(end($statusNotes)->Id());

    $paragraph->field_status_term->target_id = $newStatus;
    // Save paragraph.
    $paragraph->save();
  }

}

/**
 * Implements hook_form_alter().
 *
 * Perform alterations before a form is rendered.
 *
 * One popular use of this hook is to add form elements to the node form. When
 * altering a node form, the node object can be accessed at $form['#node'].
 *
 * Note that instead of hook_form_alter(), which is called for all forms, you
 * can also use hook_form_FORM_ID_alter() to alter a specific form. For each
 * module (in system weight order) the general form alter hook implementation
 * is invoked first, then the form ID specific alter implementation is called.
 * After all module hook implementations are invoked, the hook_form_alter()
 * implementations from themes are invoked in the same manner.
 *
 * @param $form
 *   Nested array of form elements that comprise the form.
 * @param $form_state
 *   A keyed array containing the current state of the form. The arguments
 *   that drupal_get_form() was originally called with are available in the
 *   array $form_state['build_info']['args'].
 * @param $form_id
 *   String representing the name of the form itself. Typically this is the
 *   name of the function that generated the form.
 *
 * @see hook_form_FORM_ID_alter()
 *
 *
 */
function service_request_form_alter(&$form, &$form_state, $form_id) {
  // $status_widget = $form['field_status_notes']['widget'];
  // todo:
  // Disable paragraph subform if subform hooks are stable:
  // https://www.drupal.org/project/paragraphs/issues/2868155
  $form['#attached']['library'][] = 'service_request/paragraphs';
  $form['#attached']['drupalSettings']['service_request']['paragraphs']['variable'] = 'value';

  return $form;
}