answers-8.x-1.x-dev/modules/core/answers_core.module

<?php

/**
 * @file
 * Hook implementation code for the Answers core module.
 */

use Drupal\comment\CommentInterface;
use Drupal\node\NodeInterface;

/**
 * Implements hook_theme().
 */
function answers_core_theme() {
  return [
    'comment__answers_comments__answers_answer' => [
      'base hook' => 'comment',
    ],
    'comment__answers__answers_question' => [
      'base hook' => 'comment',
    ],
    'comment__answers_comments__answers_question' => [
      'base hook' => 'comment',
    ],
    'node__answers_question' => [
      'base hook' => 'node',
    ],
    'field__node__answers__answers_question' => [
      'base hook' => 'field',
    ],
    'field__node__answers_comments__answers_question' => [
      'base hook' => 'field',
    ],

  ];
}

/**
 * Implements hook_preprocess().
 */
function answers_core_preprocess(&$variables, $hook) {

  if ($hook == 'node' && $node = \Drupal::routeMatch()->getParameter('node')) {

    $variables['#attached']['library'][] = 'answers_core/node';
    $node_type = $node->type[0]->target_id;
    if ($node_type == 'answers_question') {
      $moduleHandler = \Drupal::service('module_handler');

      $date = $node->created[0]->value;
      if ((\Drupal::time()->getRequestTime() - $date) < 86400) {
        $variables['date'] = 'today';
      }
      else {
        $variables['date'] = \Drupal::service('date.formatter')->formatInterval(\Drupal::time()->getRequestTime() - $date) . 'ago';
      }

      $answer_count = 0;

      if (!$variables['content']['answers']['#object']->answers->isEmpty()) {
        $answer_count = $variables['content']['answers']['#object']->answers[0]->comment_count;
      }

      if ($answer_count == 0) {
        $variables['content']['answers']['#title'] = t('No Answers');
      }
      elseif ($answer_count == 1) {
        $variables['content']['answers']['#title'] = t('@count Answer', ['@count' => $answer_count]);
      }
      else {
        $variables['content']['answers']['#title'] = t('@count Answers', ['@count' => $answer_count]);
      }

      if ($moduleHandler->moduleExists('statistics')) {
        if ($node->id()) {
          $statistics = \Drupal::service('statistics.storage.node')->fetchView($node->id());

          if ($statistics) {
            $viewed = \Drupal::translation()->formatPlural($statistics->getTotalCount(), 'Viewed 1 time', 'Viewed @count times');
            $variables['viewed'] = ['#markup' => $viewed];
          }

        }

      }

    }

  }

  if ($hook == 'comment') {
    // dpm(array_keys($variables));
    // unset($variables['title']);
  }

  if ($hook == 'form') {
    // dpm(array_keys($variables));
    // unset($variables['title']);
  }

}

/**
 * Implements hook_node_links_alter().
 */
function answers_core_node_links_alter(array &$links, NodeInterface $node, array &$context) {

  $is_question = $node->type->target_id == 'answers_question';

  if ($is_question && array_key_exists('statistics', $links)) {
    unset($links['statistics']);
  }
}

/**
 * Implements hook_comment_links_alter().
 */
function answers_core_comment_links_alter(array &$links, CommentInterface $comment, array &$context) {

  $comment_type = $comment->bundle();
  $answers_types = ['answers_answer', 'answers_question_comment', 'answers_comment'];
  if (in_array($comment_type, $answers_types)) {
    unset($links['comment']['#links']['comment-reply']);
  }

}

/**
 * Implements hook_module_implements_alter().
 */
function answers_core_module_implements_alter(&$implementations, $hook) {
  if ($hook == 'node_links_alter') {

    // Move my_module_form_alter() to the end of the list.
    // \Drupal::moduleHandler()->getImplementations()
    // iterates through $implementations with a foreach loop which PHP iterates
    // in the order that the items were added, so to move an item to the end of
    // the array, we remove it and then add it.
    $group = $implementations['answers_core'];

    unset($implementations['answers_core']);
    $implementations['answers_core'] = $group;
  }
}