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<?php
// $Id$
/**
* @file
* User page callbacks for the comment module.
*/
/**
* 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'] : '';
$build = array();
// The user is previewing a comment prior to submitting it.
if ($op == t('Preview')) {
if (user_access('post comments')) {
$build['comment_form'] = drupal_get_form("comment_node_{$node->type}_form", (object) array('pid' => $pid, 'nid' => $node->nid));
}
else {
drupal_set_message(t('You are not authorized to post comments.'), 'error');
drupal_goto("node/$node->nid");
}
}
else {
// $pid indicates that this is a reply to a comment.
if ($pid) {
if (user_access('access comments')) {
// Load the comment whose cid = $pid
$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(
':cid' => $pid,
':status' => COMMENT_PUBLISHED,
))->fetchObject();
if ($comment) {
// 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->node_type = 'comment_node_' . $node->type;
field_attach_load('comment', array($comment->cid => $comment));
$comment->name = $comment->uid ? $comment->registered_name : $comment->name;
$build['comment_parent'] = comment_view($comment, $node);
}
else {
drupal_set_message(t('The comment you are replying to does not exist.'), 'error');
drupal_goto("node/$node->nid");
}
}
else {
drupal_set_message(t('You are not authorized to view comments.'), 'error');
drupal_goto("node/$node->nid");
}
}
// This is the case where the comment is in response to a node. Display the node.
elseif (user_access('access content')) {
$build['comment_node'] = node_view($node);
}
// Should we show the reply box?
if ($node->comment != COMMENT_NODE_OPEN) {
drupal_set_message(t("This discussion is closed: you can't post new comments."), 'error');
drupal_goto("node/$node->nid");
}
elseif (user_access('post comments')) {
$edit = array('nid' => $node->nid, 'pid' => $pid);
$build['comment_form'] = drupal_get_form("comment_node_{$node->type}_form", (object) $edit);
}
else {
drupal_set_message(t('You are not authorized to post comments.'), 'error');
drupal_goto("node/$node->nid");
}
}
return $build;
}
/**
* Menu callback; publish specified comment.
*
* @param $cid
* A comment identifier.
*/
function comment_approve($cid) {
if (!isset($_GET['token']) || !drupal_valid_token($_GET['token'], "comment/$cid/approve")) {
return MENU_ACCESS_DENIED;
}
if ($comment = comment_load($cid)) {
$comment->status = COMMENT_PUBLISHED;
comment_save($comment);
drupal_set_message(t('Comment approved.'));
drupal_goto('node/' . $comment->nid);
}
return MENU_NOT_FOUND;
}
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