Source: /modules/comment/comment.pages.inc - 123 lines - 4595 bytes - Summary - Text - Print

   1  <?php
   2  
   3  /**
   4   * @file
   5   * User page callbacks for the comment module.
   6   */
   7  
   8  /**
   9   * This function is responsible for generating a comment reply form.
  10   * There are several cases that have to be handled, including:
  11   *   - replies to comments
  12   *   - replies to nodes
  13   *   - attempts to reply to nodes that can no longer accept comments
  14   *   - respecting access permissions ('access comments', 'post comments', etc.)
  15   *
  16   * The node or comment that is being replied to must appear above the comment
  17   * form to provide the user context while authoring the comment.
  18   *
  19   * @param $node
  20   *   Every comment belongs to a node. This is that node.
  21   *
  22   * @param $pid
  23   *   Some comments are replies to other comments. In those cases, $pid is the parent
  24   *   comment's cid.
  25   *
  26   * @return array
  27   *   An associative array containing:
  28   *   - An array for rendering the node or parent comment.
  29   *     - comment_node: If the comment is a reply to the node.
  30   *     - comment_parent: If the comment is a reply to another comment.
  31   *   - comment_form: The comment form as a renderable array.
  32   */
  33  function comment_reply($node, $pid = NULL) {
  34    // Set the breadcrumb trail.
  35    drupal_set_breadcrumb(array(l(t('Home'), NULL), l($node->title, 'node/' . $node->nid)));
  36    $op = isset($_POST['op']) ? $_POST['op'] : '';
  37    $build = array();
  38  
  39    // The user is previewing a comment prior to submitting it.
  40    if ($op == t('Preview')) {
  41      if (user_access('post comments')) {
  42        $build['comment_form'] = drupal_get_form("comment_node_{$node->type}_form", (object) array('pid' => $pid, 'nid' => $node->nid));
  43      }
  44      else {
  45        drupal_set_message(t('You are not authorized to post comments.'), 'error');
  46        drupal_goto("node/$node->nid");
  47      }
  48    }
  49    else {
  50      // $pid indicates that this is a reply to a comment.
  51      if ($pid) {
  52        if (user_access('access comments')) {
  53          // Load the comment whose cid = $pid
  54          $comment = db_query('SELECT c.*, u.uid, u.name AS registered_name, u.signature, u.signature_format, u.picture, u.data FROM {comment} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = :cid AND c.status = :status', array(
  55            ':cid' => $pid,
  56            ':status' => COMMENT_PUBLISHED,
  57          ))->fetchObject();
  58          if ($comment) {
  59            // If that comment exists, make sure that the current comment and the
  60            // parent comment both belong to the same parent node.
  61            if ($comment->nid != $node->nid) {
  62              // Attempting to reply to a comment not belonging to the current nid.
  63              drupal_set_message(t('The comment you are replying to does not exist.'), 'error');
  64              drupal_goto("node/$node->nid");
  65            }
  66            // Display the parent comment
  67            $comment->node_type = 'comment_node_' . $node->type;
  68            field_attach_load('comment', array($comment->cid => $comment));
  69            $comment->name = $comment->uid ? $comment->registered_name : $comment->name;
  70            $build['comment_parent'] = comment_view($comment, $node);
  71          }
  72          else {
  73            drupal_set_message(t('The comment you are replying to does not exist.'), 'error');
  74            drupal_goto("node/$node->nid");
  75          }
  76        }
  77        else {
  78          drupal_set_message(t('You are not authorized to view comments.'), 'error');
  79          drupal_goto("node/$node->nid");
  80        }
  81      }
  82      // This is the case where the comment is in response to a node. Display the node.
  83      elseif (user_access('access content')) {
  84        $build['comment_node'] = node_view($node);
  85      }
  86  
  87      // Should we show the reply box?
  88      if ($node->comment != COMMENT_NODE_OPEN) {
  89        drupal_set_message(t("This discussion is closed: you can't post new comments."), 'error');
  90        drupal_goto("node/$node->nid");
  91      }
  92      elseif (user_access('post comments')) {
  93        $edit = array('nid' => $node->nid, 'pid' => $pid);
  94        $build['comment_form'] = drupal_get_form("comment_node_{$node->type}_form", (object) $edit);
  95      }
  96      else {
  97        drupal_set_message(t('You are not authorized to post comments.'), 'error');
  98        drupal_goto("node/$node->nid");
  99      }
 100    }
 101  
 102    return $build;
 103  }
 104  
 105  /**
 106   * Menu callback; publish specified comment.
 107   *
 108   * @param $cid
 109   *   A comment identifier.
 110   */
 111  function comment_approve($cid) {
 112    if (!isset($_GET['token']) || !drupal_valid_token($_GET['token'], "comment/$cid/approve")) {
 113      return MENU_ACCESS_DENIED;
 114    }
 115    if ($comment = comment_load($cid)) {
 116      $comment->status = COMMENT_PUBLISHED;
 117      comment_save($comment);
 118  
 119      drupal_set_message(t('Comment approved.'));
 120      drupal_goto('node/' . $comment->nid);
 121    }
 122    return MENU_NOT_FOUND;
 123  }