social_lms_integrator-1.0.0-beta4/modules/social_lms_integrator_iteration_enrollment_notify/social_lms_integrator_iteration_enrollment_notify.module

<?php

/**
 * @file
 * Contains group_welcome_message.module.
 */

use Drupal\Core\Access\AccessResult;
use Drupal\Core\Routing\Access\AccessInterface;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Url;
use Drupal\node\NodeInterface;

/**
 * Implements hook_help().
 */
function social_lms_integrator_iteration_enrollment_notify_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Main module help for the social_welcome_message module.
    case 'help.page.group_welcome_message':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Adds welcome messages for Group') . '</p>';
      return $output;

    default:
  }
}



 /**
  * Implements hook_social_lms_integrator_buttons_block_add_button()
  */

function social_lms_integrator_iteration_enrollment_notify_social_lms_integrator_buttons_block_add_button_alter(&$buttons) {

    // Get current node so we can build correct links.
    $node = \Drupal::routeMatch()->getParameter('node');

    if (!is_object($node) && !is_null($node)) {

      $node = \Drupal::entityTypeManager()
        ->getStorage('node')
        ->load($node);

    }

    // Check for an node type of iteration
    if ($node instanceof NodeInterface && $node->getType() === 'iteration') {
        $iteration = $node;        
    
    $buttons['manage_welcome_message'] = [
      '#type' => 'link',
      '#title' => t('Manage Welcome Message'),
      '#url' => Url::fromRoute('entity.iteration_welcome_message.add_form', ['node' => $node->id()]
          ),
      '#attributes' => [
        'class' => ['group-welcome-message-action-button','button', 'btn','btn-default'],
      ],
    ];
    
    }

}