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MDL-32931 mod_forum Polishing patch and taking into account courses without previous accesses

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This commit is contained in:
David Monllao 2012-07-09 15:29:42 +08:00
parent 28d638729d
commit ba4ee840db
1 changed files with 23 additions and 16 deletions
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39
mod/forum/lib.php
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@ -1310,26 +1310,33 @@ function forum_print_overview($courses,&$htmlarray) {
return;
}
// look for new posts since lastaccess
$course_tuples = join(
' OR ',
array_fill(0, count($visited_courses), '(f.course = ? AND p.created > ?)')
);
$sql = "SELECT f.id, COUNT(*) "
.'FROM {forum_posts} p, {forum_discussions} d, {forum} f '
.'WHERE p.discussion = d.id AND d.forum = f.id '
."AND ($course_tuples) "
."AND p.userid != ? "
."GROUP BY f.id";
// Courses to search for new posts
$coursessqls = array();
$params = array();
foreach ($courses as $course) {
$params[] = $course->id;
$params[] = $course->lastaccess;
// If the user has never entered into the course all posts are pending
if ($course->lastaccess == 0) {
$coursessqls[] = '(f.course = ?)';
$params[] = $course->id;
// Only posts created after the course last access
} else {
$coursessqls[] = '(f.course = ? AND p.created > ?)';
$params[] = $course->id;
$params[] = $course->lastaccess;
}
}
$params[] = $USER->id;
$coursessql = implode(' OR ', $coursessqls);
$sql = "SELECT f.id, COUNT(*) as count "
.'FROM {forum} f '
.'JOIN {forum_discussions} d ON d.forum = f.id '
.'JOIN {forum_posts} p ON p.discussion = d.id '
."WHERE ($coursessql) "
.'AND p.userid != ? '
.'GROUP BY f.id';
if (!$new = $DB->get_records_sql($sql, $params)) {
$new = array(); // avoid warnings