webmaster@1: <?php
webmaster@1: // $Id: comment.pages.inc,v 1.2.2.1 2008/02/07 18:53:38 goba Exp $
webmaster@1: 
webmaster@1: /**
webmaster@1:  * @file
webmaster@1:  * User page callbacks for the comment module.
webmaster@1:  */
webmaster@1: 
webmaster@1: /**
webmaster@1:  * Form builder; generate a comment editing form.
webmaster@1:  *
webmaster@1:  * @param $cid
webmaster@1:  *   ID of the comment to be edited.
webmaster@1:  * @ingroup forms
webmaster@1:  */
webmaster@1: function comment_edit($cid) {
webmaster@1:   global $user;
webmaster@1: 
webmaster@1:   $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));
webmaster@1:   $comment = drupal_unpack($comment);
webmaster@1:   $comment->name = $comment->uid ? $comment->registered_name : $comment->name;
webmaster@1:   if (comment_access('edit', $comment)) {
webmaster@1:     return comment_form_box((array)$comment);
webmaster@1:   }
webmaster@1:   else {
webmaster@1:     drupal_access_denied();
webmaster@1:   }
webmaster@1: }
webmaster@1: 
webmaster@1: /**
webmaster@1:  * This function is responsible for generating a comment reply form.
webmaster@1:  * There are several cases that have to be handled, including:
webmaster@1:  *   - replies to comments
webmaster@1:  *   - replies to nodes
webmaster@1:  *   - attempts to reply to nodes that can no longer accept comments
webmaster@1:  *   - respecting access permissions ('access comments', 'post comments', etc.)
webmaster@1:  *
webmaster@1:  * The node or comment that is being replied to must appear above the comment
webmaster@1:  * form to provide the user context while authoring the comment.
webmaster@1:  *
webmaster@1:  * @param $node
webmaster@1:  *   Every comment belongs to a node. This is that node.
webmaster@1:  *
webmaster@1:  * @param $pid
webmaster@1:  *   Some comments are replies to other comments. In those cases, $pid is the parent
webmaster@1:  *   comment's cid.
webmaster@1:  *
webmaster@1:  * @return
webmaster@1:  *   The rendered parent node or comment plus the new comment form.
webmaster@1:  */
webmaster@1: function comment_reply($node, $pid = NULL) {
webmaster@1:   // Set the breadcrumb trail.
webmaster@1:   drupal_set_breadcrumb(array(l(t('Home'), NULL), l($node->title, 'node/'. $node->nid)));
webmaster@1:   $op = isset($_POST['op']) ? $_POST['op'] : '';
webmaster@1: 
webmaster@1:   $output = '';
webmaster@1: 
webmaster@1:   if (user_access('access comments')) {
webmaster@1:     // The user is previewing a comment prior to submitting it.
webmaster@1:     if ($op == t('Preview')) {
webmaster@1:       if (user_access('post comments')) {
webmaster@1:         $output .= comment_form_box(array('pid' => $pid, 'nid' => $node->nid), NULL);
webmaster@1:       }
webmaster@1:       else {
webmaster@1:         drupal_set_message(t('You are not authorized to post comments.'), 'error');
webmaster@1:         drupal_goto("node/$node->nid");
webmaster@1:       }
webmaster@1:     }
webmaster@1:     else {
webmaster@1:       // $pid indicates that this is a reply to a comment.
webmaster@1:       if ($pid) {
webmaster@1:         // load the comment whose cid = $pid
webmaster@1:         if ($comment = db_fetch_object(db_query('SELECT c.*, u.uid, u.name AS registered_name, u.signature, u.picture, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = %d', $pid, COMMENT_PUBLISHED))) {
webmaster@1:           // If that comment exists, make sure that the current comment and the parent comment both
webmaster@1:           // belong to the same parent node.
webmaster@1:           if ($comment->nid != $node->nid) {
webmaster@1:             // Attempting to reply to a comment not belonging to the current nid.
webmaster@1:             drupal_set_message(t('The comment you are replying to does not exist.'), 'error');
webmaster@1:             drupal_goto("node/$node->nid");
webmaster@1:           }
webmaster@1:           // Display the parent comment
webmaster@1:           $comment = drupal_unpack($comment);
webmaster@1:           $comment->name = $comment->uid ? $comment->registered_name : $comment->name;
webmaster@1:           $output .= theme('comment_view', $comment, $node);
webmaster@1:         }
webmaster@1:         else {
webmaster@1:           drupal_set_message(t('The comment you are replying to does not exist.'), 'error');
webmaster@1:           drupal_goto("node/$node->nid");
webmaster@1:         }
webmaster@1:       }
webmaster@1:       // This is the case where the comment is in response to a node. Display the node.
webmaster@1:       else if (user_access('access content')) {
webmaster@1:         $output .= node_view($node);
webmaster@1:       }
webmaster@1: 
webmaster@1:       // Should we show the reply box?
webmaster@1:       if (node_comment_mode($node->nid) != COMMENT_NODE_READ_WRITE) {
webmaster@1:         drupal_set_message(t("This discussion is closed: you can't post new comments."), 'error');
webmaster@1:         drupal_goto("node/$node->nid");
webmaster@1:       }
webmaster@1:       else if (user_access('post comments')) {
webmaster@1:         $output .= comment_form_box(array('pid' => $pid, 'nid' => $node->nid), t('Reply'));
webmaster@1:       }
webmaster@1:       else {
webmaster@1:         drupal_set_message(t('You are not authorized to post comments.'), 'error');
webmaster@1:         drupal_goto("node/$node->nid");
webmaster@1:       }
webmaster@1:     }
webmaster@1:   }
webmaster@1:   else {
webmaster@1:     drupal_set_message(t('You are not authorized to view comments.'), 'error');
webmaster@1:     drupal_goto("node/$node->nid");
webmaster@1:   }
webmaster@1: 
webmaster@1:   return $output;
webmaster@1: }