From 331c512a10723d3254ee243a75a4a132a17eec92 Mon Sep 17 00:00:00 2001
From: mchurch <mchurch>
Date: Mon, 25 Apr 2005 03:56:02 +0000
Subject: [PATCH] Added the ability to mark all posts in a forum as read.

---
 mod/forum/index.php     | 12 +++++--
 mod/forum/lib.php       | 24 +++++++++++++-
 mod/forum/markposts.php | 72 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 104 insertions(+), 4 deletions(-)
 create mode 100644 mod/forum/markposts.php

diff --git a/mod/forum/index.php b/mod/forum/index.php
index 393d64f802b..58de2b4a12c 100644
--- a/mod/forum/index.php
+++ b/mod/forum/index.php
@@ -138,7 +138,10 @@
                     $groupid = ($groupmode==SEPARATEGROUPS && !isteacheredit($course->id)) ? $currentgroup : false;
                     $unread = forum_tp_count_forum_unread_posts($USER->id, $forum->id, $groupid);
                     if ($unread > 0) {
-                        $unreadlink = '<span class="unread"><a href="view.php?f='.$forum->id.'">'.$unread.'</a>';
+                        $unreadlink = '<span class="unread"><a href="view.php?f='.$forum->id.'">'.$unread.'</a></span>';
+                        $unreadlink .= ' <span style="font-size: 75%">' .
+                                       '<a title="Mark all read" href="markposts.php?id='.
+                                       $forum->id.'&mark=read">mark read</a></span>';
                     } else {
                         $unreadlink = '<span class="read"><a href="view.php?f='.$forum->id.'">'.$unread.'</a>';
                     }
@@ -274,9 +277,12 @@
                         $groupid = ($groupmode==SEPARATEGROUPS && !isteacheredit($course->id)) ? $currentgroup : false;
                         $unread = forum_tp_count_forum_unread_posts($USER->id, $forum->id, $groupid);
                         if ($unread > 0) {
-                            $unreadlink = '<span class="unread"><a href="view.php?f='.$forum->id.'">'.$unread.'</a>';
+                            $unreadlink = '<span class="unread"><a href="view.php?f='.$forum->id.'">'.$unread.'</a></span>';
+                            $unreadlink .= ' <span style="font-size: 75%">' .
+                                           '<a title="Mark all read" href="markposts.php?id='.
+                                           $forum->id.'&mark=read">mark read</a></span>';
                         } else {
-                            $unreadlink = '<span class="read"><a href="view.php?f='.$forum->id.'">'.$unread.'</a>';
+                            $unreadlink = '<span class="read"><a href="view.php?f='.$forum->id.'">'.$unread.'</a></span>';
                         }
                         $trackedlink = '<a title="'.get_string('notrackforum', 'forum').'" ' .
                                        'href="settracking.php?id='.$forum->id.'">'.get_string('yes').'</a>';
diff --git a/mod/forum/lib.php b/mod/forum/lib.php
index 5b01eb0ab63..b4f23a6de06 100644
--- a/mod/forum/lib.php
+++ b/mod/forum/lib.php
@@ -3157,8 +3157,30 @@ function forum_tp_mark_post_read($userid, &$post, $forumid) {
     }
 }
 
-function forum_tp_mark_forum_read($userid, $forumid) {
+function forum_tp_mark_forum_read($userid, $forumid, $groupid=false) {
 /// We need a proper LEFT JOIN in here to find posts without read records
+    global $CFG;
+
+    $cutoffdate = isset($CFG->forum_oldpostdays) ? (time() - ($CFG->forum_oldpostdays*24*60*60)) : 0;
+
+    $groupsel = '';
+    if ($groupid !== false) {
+        $groupsel = ' AND (d.groupid = '.$groupid.' OR d.groupid = -1)';
+    }
+
+    $sql = 'SELECT p.id as postid, d.id as discussionid, d.forum as forumid '.
+           'FROM '.$CFG->prefix.'forum_posts p '.
+           'LEFT JOIN '.$CFG->prefix.'forum_discussions d ON p.discussion = d.id '.
+           'LEFT JOIN '.$CFG->prefix.'forum_read r ON r.postid = p.id AND r.userid = '.$userid.' '.
+           'WHERE d.forum = '.$forumid.$groupsel.
+                ' AND p.modified >= '.$cutoffdate.' AND r.id is NULL';
+
+    if ($posts = get_records_sql($sql)) {
+        foreach ($posts as $post) {
+            forum_tp_add_read_record($userid, $post->postid, $post->discussionid, $post->forumid);
+        }
+        return true;
+    }
 }
 
 function forum_tp_is_post_read($userid, &$post) {
diff --git a/mod/forum/markposts.php b/mod/forum/markposts.php
new file mode 100644
index 00000000000..dc5dc2043e5
--- /dev/null
+++ b/mod/forum/markposts.php
@@ -0,0 +1,72 @@
+<?php
+
+//  Set tracking option for the forum.
+
+    require_once("../../config.php");
+    require_once("lib.php");
+
+    require_variable($id);      // The forum to mark
+    require_variable($mark);    // Read or unread?
+
+    if (! $forum = get_record("forum", "id", $id)) {
+        error("Forum ID was incorrect");
+    }
+
+    if (! $course = get_record("course", "id", $forum->course)) {
+        error("Forum doesn't belong to a course!");
+    }
+
+    if (!($cm = get_coursemodule_from_instance("forum", $forum->id, $course->id))) {
+        $cm->id = NULL;
+    }
+
+    $user = $USER;
+
+    require_course_login($course, false, $cm);
+
+    if (isguest()) {   // Guests can't change forum
+        $wwwroot = $CFG->wwwroot.'/login/index.php';
+        if (!empty($CFG->loginhttps)) {
+            $wwwroot = str_replace('http','https', $wwwroot);
+        }
+
+        $strforums = get_string('modulenameplural', 'forum');
+        if ($course->category) {
+            print_header($course->shortname, $course->fullname,
+                 "<a href=\"../../course/view.php?id=$course->id\">$course->shortname</a> ->
+                  <a href=\"../forum/index.php?id=$course->id\">$strforums</a> -> 
+                  <a href=\"view.php?f=$forum->id\">".format_string($forum->name,true)."</a>", '', '', true, "", navmenu($course, $cm));
+        } else {
+            print_header($course->shortname, $course->fullname,
+                 "<a href=\"../forum/index.php?id=$course->id\">$strforums</a> -> 
+                  <a href=\"view.php?f=$forum->id\">".format_string($forum->name,true)."</a>", '', '', true, "", navmenu($course, $cm));
+        }
+        notice_yesno(get_string('noguesttracking', 'forum').'<br /><br />'.get_string('liketologin'),
+                     $wwwroot, $_SERVER['HTTP_REFERER']);
+        print_footer($course);
+        exit;
+    }
+
+    $returnto = forum_go_back_to("index.php?id=$course->id");
+
+    $info->name  = fullname($user);
+    $info->forum = format_string($forum->name);
+
+    if ($mark == 'read') {
+        if (forum_tp_mark_forum_read($user->id, $forum->id)) {
+            add_to_log($course->id, "forum", "mark read", "view.php?f=$forum->id", $forum->id, $cm->id);
+            redirect($returnto);
+        } else {
+            error("Could not mark that forum read.", $_SERVER["HTTP_REFERER"]);
+        }
+
+//    } else { // subscribe
+//        if (forum_tp_start_tracking($forum->id, $user->id)) {
+//            add_to_log($course->id, "forum", "mark unread", "view.php?f=$forum->id", $forum->id, $cm->id);
+//            redirect($returnto, get_string("nowtracking", "forum", $info), 1);
+//        } else {
+//            error("Could not start tracking that forum", $_SERVER["HTTP_REFERER"]);
+//        }
+    }
+
+?>