home | career | drupal | java | mac | mysql | perl | php | scala | uml | unix

Drupal example source code file (comment.pages.inc)

This example Drupal source code file (comment.pages.inc) is included in the DevDaily.com "Drupal Source Code Warehouse" project. The intent of this project is to help you "Learn Drupal by Example".

PHP - Drupal tags/keywords

are, comment, comments, drupal_goto, else, error, function, if, node, not, output, php, pid, you

The comment.pages.inc Drupal example source code

<?php
// $Id: comment.pages.inc,v 1.2.2.2 2009/07/01 20:51:55 goba Exp $

/**
 * @file
 * User page callbacks for the comment module.
 */

/**
 * Form builder; generate a comment editing form.
 *
 * @param $cid
 *   ID of the comment to be edited.
 * @ingroup forms
 */
function comment_edit($cid) {
  global $user;

  $comment = db_fetch_object(db_query('SELECT c.*, u.uid, u.name AS registered_name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d', $cid));
  $comment = drupal_unpack($comment);
  $comment->name = $comment->uid ? $comment->registered_name : $comment->name;
  if (comment_access('edit', $comment)) {
    return comment_form_box((array)$comment);
  }
  else {
    drupal_access_denied();
  }
}

/**
 * This function is responsible for generating a comment reply form.
 * There are several cases that have to be handled, including:
 *   - replies to comments
 *   - replies to nodes
 *   - attempts to reply to nodes that can no longer accept comments
 *   - respecting access permissions ('access comments', 'post comments', etc.)
 *
 * The node or comment that is being replied to must appear above the comment
 * form to provide the user context while authoring the comment.
 *
 * @param $node
 *   Every comment belongs to a node. This is that node.
 *
 * @param $pid
 *   Some comments are replies to other comments. In those cases, $pid is the parent
 *   comment's cid.
 *
 * @return
 *   The rendered parent node or comment plus the new comment form.
 */
function comment_reply($node, $pid = NULL) {
  // Set the breadcrumb trail.
  drupal_set_breadcrumb(array(l(t('Home'), NULL), l($node->title, 'node/'. $node->nid)));
  $op = isset($_POST['op']) ? $_POST['op'] : '';

  $output = '';

  if (user_access('access comments')) {
    // The user is previewing a comment prior to submitting it.
    if ($op == t('Preview')) {
      if (user_access('post comments')) {
        $output .= comment_form_box(array('pid' => $pid, 'nid' => $node->nid), NULL);
      }
      else {
        drupal_set_message(t('You are not authorized to post comments.'), 'error');
        drupal_goto("node/$node->nid");
      }
    }
    else {
      // $pid indicates that this is a reply to a comment.
      if ($pid) {
        // load the comment whose cid = $pid
        if ($comment = db_fetch_object(db_query('SELECT c.*, u.uid, u.name AS registered_name, u.signature, u.signature_format, u.picture, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = %d', $pid, COMMENT_PUBLISHED))) {
          // If that comment exists, make sure that the current comment and the parent comment both
          // belong to the same parent node.
          if ($comment->nid != $node->nid) {
            // Attempting to reply to a comment not belonging to the current nid.
            drupal_set_message(t('The comment you are replying to does not exist.'), 'error');
            drupal_goto("node/$node->nid");
          }
          // Display the parent comment
          $comment = drupal_unpack($comment);
          $comment->name = $comment->uid ? $comment->registered_name : $comment->name;
          $output .= theme('comment_view', $comment, $node);
        }
        else {
          drupal_set_message(t('The comment you are replying to does not exist.'), 'error');
          drupal_goto("node/$node->nid");
        }
      }
      // This is the case where the comment is in response to a node. Display the node.
      else if (user_access('access content')) {
        $output .= node_view($node);
      }

      // Should we show the reply box?
      if (node_comment_mode($node->nid) != COMMENT_NODE_READ_WRITE) {
        drupal_set_message(t("This discussion is closed: you can't post new comments."), 'error');
        drupal_goto("node/$node->nid");
      }
      else if (user_access('post comments')) {
        $output .= comment_form_box(array('pid' => $pid, 'nid' => $node->nid), t('Reply'));
      }
      else {
        drupal_set_message(t('You are not authorized to post comments.'), 'error');
        drupal_goto("node/$node->nid");
      }
    }
  }
  else {
    drupal_set_message(t('You are not authorized to view comments.'), 'error');
    drupal_goto("node/$node->nid");
  }

  return $output;
}

Other Drupal examples (source code examples)

Here is a short list of links related to this Drupal comment.pages.inc source code file:

new blog posts

"Drupal" is a registered trademark of Dries Buytaert.

my drupal tutorials and examples  

Copyright 1998-2016 Alvin Alexander, alvinalexander.com
All Rights Reserved.

Beginning in 2016, a portion of the proceeds from pages under the '/drupal-code-examples/' URI will be donated to charity.