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<?php
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/**
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* @file
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* User page callbacks for the comment module.
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*/
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/**
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* This function is responsible for generating a comment reply form.
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* There are several cases that have to be handled, including:
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* - replies to comments
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* - replies to nodes
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* - attempts to reply to nodes that can no longer accept comments
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* - respecting access permissions ('access comments', 'post comments', etc.)
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*
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* The node or comment that is being replied to must appear above the comment
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* form to provide the user context while authoring the comment.
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*
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* @param $node
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* Every comment belongs to a node. This is that node.
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*
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* @param $pid
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* Some comments are replies to other comments. In those cases, $pid is the parent
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* comment's cid.
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*
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* @return array
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* An associative array containing:
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* - An array for rendering the node or parent comment.
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* - comment_node: If the comment is a reply to the node.
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* - comment_parent: If the comment is a reply to another comment.
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* - comment_form: The comment form as a renderable array.
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*/
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function comment_reply($node, $pid = NULL) {
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// Set the breadcrumb trail.
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drupal_set_breadcrumb(array(l(t('Home'), NULL), l($node->title, 'node/' . $node->nid)));
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$op = isset($_POST['op']) ? $_POST['op'] : '';
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$build = array();
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// The user is previewing a comment prior to submitting it.
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if ($op == t('Preview')) {
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if (user_access('post comments')) {
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$build['comment_form'] = drupal_get_form("comment_node_{$node->type}_form", (object) array('pid' => $pid, 'nid' => $node->nid));
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}
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else {
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drupal_set_message(t('You are not authorized to post comments.'), 'error');
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drupal_goto("node/$node->nid");
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}
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}
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else {
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// $pid indicates that this is a reply to a comment.
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if ($pid) {
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if (user_access('access comments')) {
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// Load the comment whose cid = $pid
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$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(
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':cid' => $pid,
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':status' => COMMENT_PUBLISHED,
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))->fetchObject();
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if ($comment) {
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// If that comment exists, make sure that the current comment and the
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// parent comment both belong to the same parent node.
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if ($comment->nid != $node->nid) {
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// Attempting to reply to a comment not belonging to the current nid.
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drupal_set_message(t('The comment you are replying to does not exist.'), 'error');
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drupal_goto("node/$node->nid");
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}
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// Display the parent comment
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$comment->node_type = 'comment_node_' . $node->type;
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field_attach_load('comment', array($comment->cid => $comment));
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$comment->name = $comment->uid ? $comment->registered_name : $comment->name;
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$build['comment_parent'] = comment_view($comment, $node);
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}
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else {
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drupal_set_message(t('The comment you are replying to does not exist.'), 'error');
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drupal_goto("node/$node->nid");
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}
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}
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else {
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drupal_set_message(t('You are not authorized to view comments.'), 'error');
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drupal_goto("node/$node->nid");
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}
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}
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// This is the case where the comment is in response to a node. Display the node.
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elseif (user_access('access content')) {
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$build['comment_node'] = node_view($node);
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}
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// Should we show the reply box?
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if ($node->comment != COMMENT_NODE_OPEN) {
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drupal_set_message(t("This discussion is closed: you can't post new comments."), 'error');
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drupal_goto("node/$node->nid");
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}
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elseif (user_access('post comments')) {
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$edit = array('nid' => $node->nid, 'pid' => $pid);
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$build['comment_form'] = drupal_get_form("comment_node_{$node->type}_form", (object) $edit);
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}
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else {
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drupal_set_message(t('You are not authorized to post comments.'), 'error');
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drupal_goto("node/$node->nid");
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}
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}
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return $build;
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}
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/**
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* Menu callback; publish specified comment.
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*
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* @param $cid
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* A comment identifier.
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*/
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function comment_approve($cid) {
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if (!isset($_GET['token']) || !drupal_valid_token($_GET['token'], "comment/$cid/approve")) {
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return MENU_ACCESS_DENIED;
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}
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if ($comment = comment_load($cid)) {
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$comment->status = COMMENT_PUBLISHED;
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comment_save($comment);
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drupal_set_message(t('Comment approved.'));
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drupal_goto('node/' . $comment->nid);
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}
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return MENU_NOT_FOUND;
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}
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