mirror of
https://github.com/moodle/moodle.git
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317 lines
11 KiB
PHP
317 lines
11 KiB
PHP
<?PHP // $Id$
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// Edit and save a new post to a discussion
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require("../../config.php");
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require("lib.php");
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if (isguest()) {
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error(get_string("noguestpost", "forum"), $HTTP_REFERER);
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}
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if (match_referer() && isset($HTTP_POST_VARS)) { // form submitted
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$post = (object)$HTTP_POST_VARS;
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$post->subject = strip_tags($post->subject); // Strip all tags
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$post->message = clean_text($post->message, $post->format); // Clean up any bad tags
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$post->attachment = $HTTP_POST_FILES["attachment"];
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if (!$post->subject and !$post->message) {
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error(get_string("emptymessage", "forum"));
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}
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require_login();
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if ($post->edit) { // Updating a post
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$post->id = $post->edit;
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if (forum_update_post($post)) {
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add_to_log($post->course, "forum", "update post", "discuss.php?d=$post->discussion&parent=$post->id", "$post->id");
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redirect(forum_go_back_to("discuss.php?d=$post->discussion"), get_string("postupdated", "forum"), 1);
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} else {
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error(get_string("couldnotupdate", "forum"));
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}
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} else if ($post->discussion) { // Adding a new post to an existing discussion
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if ($post->id = forum_add_new_post($post)) {
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if ( ! forum_is_subscribed($USER->id, $post->forum) ) {
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forum_subscribe($USER->id, $post->forum);
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}
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add_to_log($post->course, "forum", "add post", "discuss.php?d=$post->discussion&parent=$post->id", "$post->id");
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redirect(forum_go_back_to("discuss.php?d=$post->discussion"),
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get_string("postadded", "forum", format_time($CFG->maxeditingtime)), 2);
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} else {
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error(get_string("couldnotadd", "forum"));
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}
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} else { // Adding a new discussion
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$discussion = $post;
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$discussion->name = $post->subject;
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$discussion->intro = $post->message;
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if ($discussion->id = forum_add_discussion($discussion)) {
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if ( ! forum_is_subscribed($USER->id, $post->forum) ) {
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forum_subscribe($USER->id, $post->forum);
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}
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add_to_log($post->course, "forum", "add discussion", "discuss.php?d=$discussion->id", "$discussion->id");
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redirect(forum_go_back_to("view.php?f=$post->forum"),
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get_string("postadded", "forum", format_time($CFG->maxeditingtime)), 3);
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} else {
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error(get_string("couldnotadd", "forum"));
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}
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}
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die;
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}
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if ($usehtmleditor = can_use_richtext_editor()) {
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$defaultformat = FORMAT_HTML;
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$onsubmit = "onsubmit=\"copyrichtext(theform.message);\"";
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} else {
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$defaultformat = FORMAT_MOODLE;
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$onsubmit = "";
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}
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if (isset($forum)) { // User is starting a new discussion in a forum
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$SESSION->fromurl = $HTTP_REFERER;
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save_session("SESSION");
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if (! $forum = get_record("forum", "id", $forum)) {
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error("The forum number was incorrect ($forum)");
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}
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if (! $course = get_record("course", "id", $forum->course)) {
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error("The course number was incorrect ($forum)");
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}
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if (! forum_user_can_post_discussion($forum)) {
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error("Sorry, but you can not post a new discussion in this forum.");
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}
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// Load up the $post variable.
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$post->course = $course->id;
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$post->forum = $forum->id;
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$post->discussion = 0; // ie discussion # not defined yet
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$post->parent = 0;
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$post->subject = "";
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$post->userid = $USER->id;
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$post->message = "";
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$post->format = $defaultformat;
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forum_set_return();
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} else if (isset($reply)) { // User is writing a new reply
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if (! $parent = forum_get_post_full($reply)) {
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error("Parent post ID was incorrect ($reply)");
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}
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if (! $discussion = get_record("forum_discussions", "id", $parent->discussion)) {
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error("This post is not part of a discussion! ($reply)");
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}
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if (! $forum = get_record("forum", "id", $discussion->forum)) {
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error("The forum number was incorrect ($discussion->forum)");
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}
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if (! $course = get_record("course", "id", $discussion->course)) {
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error("The course number was incorrect ($discussion->course)");
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}
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if (! forum_user_can_post($forum)) {
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error("Sorry, but you can not post in this forum.");
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}
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// Load up the $post variable.
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$post->course = $course->id;
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$post->forum = $forum->id;
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$post->discussion = $parent->discussion;
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$post->parent = $parent->id;
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$post->subject = $parent->subject;
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$post->userid = $USER->id;
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$post->message = "";
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$post->format = $defaultformat;
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$strre = get_string("re", "forum");
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if (!(substr($post->subject, 0, 3) == $strre)) {
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$post->subject = "$strre $post->subject";
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}
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forum_set_return();
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} else if (isset($edit)) { // User is editing their own post
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if (! $post = forum_get_post_full($edit)) {
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error("Post ID was incorrect");
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}
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if ($post->userid <> $USER->id) {
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error("You can't edit other people's posts!");
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}
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if ((time() - $post->created) > $CFG->maxeditingtime) {
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error( get_string("maxtimehaspassed", "forum", format_time($CFG->maxeditingtime)) );
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}
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if ($post->parent) {
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if (! $parent = forum_get_post_full($post->parent)) {
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error("Parent post ID was incorrect ($post->parent)");
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}
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}
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if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
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error("This post is not part of a discussion! ($reply)");
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}
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if (! $forum = get_record("forum", "id", $discussion->forum)) {
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error("The forum number was incorrect ($discussion->forum)");
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}
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if (! $course = get_record("course", "id", $discussion->course)) {
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error("The course number was incorrect ($discussion->course)");
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}
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// Load up the $post variable.
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$post->edit = $edit;
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$post->course = $course->id;
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$post->forum = $forum->id;
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forum_set_return();
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} else if (isset($delete)) { // User is deleting a post
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if (! $post = forum_get_post_full($delete)) {
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error("Post ID was incorrect");
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}
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if (! $discussion = get_record("forum_discussions", "id", $post->discussion)) {
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error("This post is not part of a discussion!");
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}
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if (! $forum = get_record("forum", "id", $discussion->forum)) {
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error("The forum number was incorrect ($discussion->forum)");
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}
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if (($post->userid <> $USER->id) and !isteacher($forum->course)) {
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error("You can't delete other people's posts!");
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}
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if (isset($confirm)) { // User has confirmed the delete
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if ($post->totalscore) {
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notice(get_string("couldnotdeleteratings", "forum"),
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forum_go_back_to("discuss.php?d=$post->discussion"));
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} else if (record_exists("forum_posts", "parent", $delete)) {
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error(get_string("couldnotdeletereplies", "forum"),
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forum_go_back_to("discuss.php?id=$post->discussion"));
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} else {
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if (! $post->parent) { // post is a discussion topic as well, so delete discussion
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if ($forum->type == "single") {
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notice("Sorry, but you are not allowed to delete that discussion!",
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forum_go_back_to("discuss.php?d=$post->discussion"));
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}
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forum_delete_discussion($discussion);
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add_to_log($discussion->course, "forum", "delete discussion", "view.php?id=$discussion->forum", "$post->id");
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redirect("view.php?f=$discussion->forum",
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get_string("deleteddiscussion", "forum"), 1);
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} else if (forum_delete_post($post)) {
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add_to_log($discussion->course, "forum", "delete post", "discuss.php?d=$post->discussion", "$post->id");
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redirect(forum_go_back_to("discuss.php?d=$post->discussion"),
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get_string("deletedpost", "forum"), 1);
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} else {
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error("An error occurred while deleting record $post->id");
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}
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}
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} else { // User just asked to delete something
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forum_set_return();
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print_header();
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notice_yesno(get_string("deletesure", "forum"),
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"post.php?delete=$delete&confirm=$delete",
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$HTTP_REFERER);
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echo "<CENTER><HR>";
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forum_print_post($post, $forum->course, $ownpost=false, $reply=false, $link=false);
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}
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die;
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} else {
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error("No operation specified");
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}
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// To get here they need to edit a post, and the $post
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// variable will be loaded with all the particulars,
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// so bring up the form.
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// $course, $forum are defined. $discussion is for edit and reply only.
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require_login($course->id);
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if ($post->discussion) {
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if (! $toppost = get_record("forum_posts", "discussion", $post->discussion, "parent", 0)) {
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error("Could not find top parent of post $post->id");
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}
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} else {
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$toppost->subject = get_string("yournewtopic", "forum");
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}
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if ($post->subject) {
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$formstart = "theform.message";
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} else {
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$formstart = "theform.subject";
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}
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if ($post->parent) {
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$navtail = "<A HREF=\"discuss.php?d=$discussion->id\">$toppost->subject</A> -> ".get_string("editing", "forum");
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} else {
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$navtail = "$toppost->subject";
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}
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if (empty($post->edit)) {
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$post->edit = "";
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}
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$strforums = get_string("modulenameplural", "forum");
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$navmiddle = "<A HREF=\"../forum/index.php?id=$course->id\">$strforums</A> -> <A HREF=\"view.php?f=$forum->id\">$forum->name</A>";
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$cm = get_coursemodule_from_instance("forum", $forum->id, $course->id);
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if (empty($discussion->name)) {
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$discussion->name = $forum->name;
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}
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if ($course->category) {
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print_header("$course->shortname: $discussion->name: $toppost->subject", "$course->fullname",
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"<A HREF=../../course/view.php?id=$course->id>$course->shortname</A> ->
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$navmiddle -> $navtail", "$formstart", "", true, "", navmenu($course, $cm));
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} else {
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print_header("$course->shortname: $discussion->name: $toppost->subject", "$course->fullname",
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"$navmiddle -> $navtail", "$formstart", "", true, "", navmenu($course, $cm));
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}
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echo "<CENTER>";
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if (isset($parent)) {
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forum_print_post($parent, $course->id, $ownpost=false, $reply=false, $link=false);
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echo "<H2>".get_string("yourreply", "forum").":</H2>";
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} else {
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echo "<H2>".get_string("yournewtopic", "forum")."</H2>";
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}
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echo "</CENTER>";
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print_simple_box_start("center", "", "$THEME->cellheading");
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require("post.html");
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print_simple_box_end();
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print_footer($course);
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?>
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