mirror of
https://github.com/moodle/moodle.git
synced 2025-01-18 14:03:52 +01:00
810 lines
30 KiB
PHP
810 lines
30 KiB
PHP
<? // $Id$
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// Library of useful functions
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$COURSE_MAX_LOG_DISPLAY = 150; // days
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$COURSE_TEACHER_COLOR = "#990000"; // To hilight certain items that are teacher-only
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$COURSE_LIVELOG_REFRESH = 60; // Seconds
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function print_log_selector_form($course, $selecteduser=0, $selecteddate="today") {
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global $USER, $CFG;
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// Get all the possible users
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$users = array();
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if ($course->category) {
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if ($students = get_records_sql("SELECT u.* FROM user u, user_students s
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WHERE s.course = '$course->id' AND s.user = u.id
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ORDER BY u.lastaccess DESC")) {
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foreach ($students as $student) {
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$users["$student->id"] = "$student->firstname $student->lastname";
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}
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}
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if ($teachers = get_records_sql("SELECT u.* FROM user u, user_teachers t
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WHERE t.course = '$course->id' AND t.user = u.id
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ORDER BY u.lastaccess DESC")) {
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foreach ($teachers as $teacher) {
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$users["$teacher->id"] = "$teacher->firstname $teacher->lastname";
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}
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}
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}
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if (isadmin()) {
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if ($ccc = get_records_sql("SELECT * FROM course ORDER BY fullname")) {
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foreach ($ccc as $cc) {
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if ($cc->category) {
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$courses["$cc->id"] = "$cc->fullname";
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} else {
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$courses["$cc->id"] = " $cc->fullname (Site)";
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}
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}
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}
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asort($courses);
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}
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asort($users);
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// Get all the possible dates
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// Note that we are keeping track of real (GMT) time and user time
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// User time is only used in displays - all calcs and passing is GMT
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$timenow = time(); // GMT
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// What day is it now for the user, and when is midnight that day (in GMT).
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$timemidnight = $today = usergetmidnight($timenow);
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// Put today up the top of the list
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$dates = array("$timemidnight" => get_string("today").", ".userdate($timenow, "%e %B %Y") );
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if (! $course->startdate) {
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$course->startdate = $course->timecreated;
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}
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$numdates = 1;
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while ($timemidnight > $course->startdate and $numdates < 365) {
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$timemidnight = $timemidnight - 86400;
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$timenow = $timenow - 86400;
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$dates["$timemidnight"] = userdate($timenow, "%A, %e %B %Y");
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$numdates++;
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}
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if ($selecteddate == "today") {
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$selecteddate = $today;
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}
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echo "<CENTER>";
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echo "<FORM ACTION=log.php METHOD=get>";
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if (isadmin()) {
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choose_from_menu ($courses, "id", $course->id, "");
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} else {
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echo "<INPUT TYPE=hidden NAME=id VALUE=\"$course->id\">";
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}
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if ($course->category) {
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choose_from_menu ($users, "user", $selecteduser, get_string("allparticipants") );
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}
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choose_from_menu ($dates, "date", $selecteddate, get_string("alldays"));
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echo "<INPUT TYPE=submit VALUE=\"".get_string("showtheselogs")."\">";
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echo "</FORM>";
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echo "</CENTER>";
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}
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function make_log_url($module, $url) {
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switch ($module) {
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case "course":
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case "user":
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case "file":
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case "login":
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case "lib":
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case "admin":
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return "/$module/$url";
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break;
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default:
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return "/mod/$module/$url";
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break;
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}
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}
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function print_log($course, $user=0, $date=0, $order="ORDER BY l.time ASC") {
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// It is assumed that $date is the GMT time of midnight for that day,
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// and so the next 86400 seconds worth of logs are printed.
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if ($course->category) {
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$selector = "WHERE l.course='$course->id' AND l.user = u.id";
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} else {
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$selector = "WHERE l.user = u.id"; // Show all courses
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if ($ccc = get_records_sql("SELECT * FROM course ORDER BY fullname")) {
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foreach ($ccc as $cc) {
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$courses[$cc->id] = "$cc->shortname";
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}
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}
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}
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if ($user) {
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$selector .= " AND l.user = '$user'";
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}
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if ($date) {
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$enddate = $date + 86400;
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$selector .= " AND l.time > '$date' AND l.time < '$enddate'";
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}
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if (!$logs = get_records_sql("SELECT l.*, u.firstname, u.lastname, u.picture
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FROM log l, user u $selector $order")){
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notify("No logs found!");
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print_footer($course);
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exit;
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}
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$count=0;
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$tt = getdate(time());
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$today = mktime (0, 0, 0, $tt["mon"], $tt["mday"], $tt["year"]);
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echo "<P ALIGN=CENTER>Displaying ".count($logs)." records</P>";
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echo "<TABLE BORDER=0 ALIGN=center CELLPADDING=3 CELLSPACING=3>";
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foreach ($logs as $log) {
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if ($ld = get_record_sql("SELECT * FROM log_display WHERE module='$log->module' AND action='$log->action'")) {
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$log->info = get_field($ld->mtable, $ld->field, "id", $log->info);
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}
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echo "<TR NOWRAP>";
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if (! $course->category) {
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echo "<TD NOWRAP><FONT SIZE=2><A HREF=\"view.php?id=$log->course\">".$courses[$log->course]."</A></TD>";
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}
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echo "<TD NOWRAP ALIGN=right><FONT SIZE=2>".userdate($log->time, "%A")."</TD>";
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echo "<TD NOWRAP><FONT SIZE=2>".userdate($log->time, "%e %B %Y, %I:%M %p")."</TD>";
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echo "<TD NOWRAP><FONT SIZE=2>";
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link_to_popup_window("$CFG->wwwroot/lib/ipatlas/plot.php?address=$log->ip&user=$log->user", "ipatlas","$log->ip", 400, 700);
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echo "</TD>";
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echo "<TD NOWRAP><FONT SIZE=2><A HREF=\"../user/view.php?id=$log->user&course=$log->course\"><B>$log->firstname $log->lastname</B></TD>";
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echo "<TD NOWRAP><FONT SIZE=2>";
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link_to_popup_window( make_log_url($log->module,$log->url), "fromloglive","$log->module $log->action", 400, 600);
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echo "</TD>";
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echo "<TD NOWRAP><FONT SIZE=2>$log->info</TD>";
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echo "</TR>";
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}
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echo "</TABLE>";
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}
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function print_all_courses($cat=1, $style="full", $maxcount=999) {
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global $CFG;
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if ($courses = get_records("course", "category", $cat, "fullname ASC")) {
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if ($style == "minimal") {
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$count = 0;
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$icon = "<IMG SRC=\"pix/i/course.gif\" HEIGHT=16 WIDTH=16 ALT=\"".get_string("course")."\">";
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foreach ($courses as $course) {
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$moddata[]="<A TITLE=\"$course->shortname\" HREF=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->fullname</A>";
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$modicon[]=$icon;
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if ($count++ >= $maxcount) {
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break;
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}
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}
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$fulllist = "<P><A HREF=\"$CFG->wwwroot/course/\">".get_string("fulllistofcourses")."</A>...";
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print_side_block("", $moddata, "$fulllist", $modicon);
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} else {
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foreach ($courses as $course) {
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print_course($course);
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echo "<BR>\n";
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}
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}
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} else {
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echo "<H3>No courses have been defined yet</H3>";
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}
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}
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function print_course($course) {
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global $CFG;
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if (! $site = get_site()) {
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error("Could not find a site!");
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}
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print_simple_box_start("CENTER", "100%");
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echo "<TABLE WIDTH=100%>";
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echo "<TR VALIGN=top>";
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echo "<TD VALIGN=top WIDTH=50%>";
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echo "<P><FONT SIZE=3><B><A TITLE=\"".get_string("entercourse")."\"
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HREF=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->fullname</A></B></FONT></P>";
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if ($teachers = get_records_sql("SELECT u.* FROM user u, user_teachers t
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WHERE u.id = t.user AND t.course = '$course->id'
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ORDER BY t.authority ASC")) {
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echo "<P><FONT SIZE=1>\n";
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foreach ($teachers as $teacher) {
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echo "$course->teacher: <A HREF=\"$CFG->wwwroot/user/view.php?id=$teacher->id&course=$site->id\">$teacher->firstname $teacher->lastname</A><BR>";
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}
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echo "</FONT></P>";
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}
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if ($course->guest or ($course->password == "")) {
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echo "<A TITLE=\"".get_string("allowguests")."\" HREF=\"$CFG->wwwroot/course/view.php?id=$course->id\">";
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echo "<IMG VSPACE=4 ALT=\"\" HEIGHT=16 WIDTH=16 BORDER=0 SRC=\"$CFG->wwwroot/user/user.gif\"></A> ";
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}
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if ($course->password) {
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echo "<A TITLE=\"".get_string("requireskey")."\" HREF=\"$CFG->wwwroot/course/view.php?id=$course->id\">";
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echo "<IMG VSPACE=4 ALT=\"\" HEIGHT=16 WIDTH=16 BORDER=0 SRC=\"$CFG->wwwroot/pix/i/key.gif\"></A>";
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}
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echo "</TD><TD VALIGN=top WIDTH=50%>";
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echo "<P><FONT SIZE=2>".text_to_html($course->summary)."</FONT></P>";
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echo "</TD></TR>";
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echo "</TABLE>";
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print_simple_box_end();
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}
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function print_headline($text, $size=2) {
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echo "<B><FONT SIZE=\"$size\">$text</FONT></B><BR>\n";
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}
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function print_recent_activity($course) {
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// $course is an object
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// This function trawls through the logs looking for
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// anything new since the user's last login
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global $CFG, $USER, $COURSE_TEACHER_COLOR;
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if (! $USER->lastlogin ) {
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echo "<P ALIGN=CENTER><FONT SIZE=1>";
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print_string("welcometocourse", "", $course->shortname);
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echo "</FONT></P>";
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return;
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} else {
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echo "<P ALIGN=CENTER><FONT SIZE=1>";
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echo get_string("yourlastlogin").":<BR>";
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echo userdate($USER->lastlogin, "%A, %e %b %Y, %H:%M");
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echo "</FONT></P>";
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}
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if (! $logs = get_records_sql("SELECT * FROM log WHERE time > '$USER->lastlogin' AND course = '$course->id' ORDER BY time ASC")) {
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return;
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}
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// Firstly, have there been any new enrolments?
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$heading = false;
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$content = false;
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foreach ($logs as $log) {
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if ($log->module == "course" and $log->action == "enrol") {
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if (! $heading) {
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print_headline(get_string("newusers").":");
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$heading = true;
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$content = true;
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}
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$user = get_record("user", "id", $log->info);
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echo "<P><FONT SIZE=1><A HREF=\"../user/view.php?id=$user->id&course=$course->id\">$user->firstname $user->lastname</A></FONT></P>";
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}
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}
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// Next, have there been any changes to the course structure?
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foreach ($logs as $log) {
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if ($log->module == "course") {
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if ($log->action == "add mod" or $log->action == "update mod" or $log->action == "delete mod") {
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$info = split(" ", $log->info);
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$modname = get_field($info[0], "name", "id", $info[1]);
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switch ($log->action) {
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case "add mod":
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$stradded = get_string("added", "moodle", get_string("modulename", $info[0]));
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$changelist["$log->info"] = array ("operation" => "add", "text" => "$stradded:<BR><A HREF=\"$CFG->wwwroot/course/$log->url\">$modname</A>");
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break;
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case "update mod":
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$strupdated = get_string("updated", "moodle", get_string("modulename", $info[0]));
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if (! $changelist["$log->info"]) {
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$changelist["$log->info"] = array ("operation" => "update", "text" => "$strupdated:<BR><A HREF=\"$CFG->wwwroot/course/$log->url\">$modname</A>");
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}
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break;
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case "delete mod":
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if ($changelist["$log->info"]["operation"] == "add") {
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$changelist["$log->info"] = NULL;
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} else {
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$strdeleted = get_string("deletedactivity", "moodle", get_string("modulename", $info[0]));
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$changelist["$log->info"] = array ("operation" => "delete", "text" => $strdeleted);
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}
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break;
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}
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}
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}
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}
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if ($changelist) {
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foreach ($changelist as $changeinfo => $change) {
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if ($change) {
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$changes[$changeinfo] = $change;
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}
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}
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if (count($changes) > 0) {
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print_headline(get_string("courseupdates").":");
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$content = true;
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foreach ($changes as $changeinfo => $change) {
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echo "<P><FONT SIZE=1>".$change["text"]."</FONT></P>";
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}
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}
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}
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// Now all we need to know are the new posts.
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$heading = false;
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foreach ($logs as $log) {
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if ($log->module == "forum") {
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$post = NULL;
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if ($log->action == "add post") {
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$post = get_record_sql("SELECT p.*, d.forum, u.firstname, u.lastname,
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u.email, u.picture, u.id as userid
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FROM forum_discussions d, forum_posts p, user u
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WHERE p.id = '$log->info' AND d.id = p.discussion AND p.user = u.id");
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} else if ($log->action == "add discussion") {
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$post = get_record_sql("SELECT p.*, d.forum, u.firstname, u.lastname,
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u.email, u.picture, u.id as userid
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FROM forum_discussions d, forum_posts p, user u
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WHERE d.id = '$log->info' AND d.firstpost = p.id AND p.user = u.id");
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}
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if ($post) {
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$teacherpost = "";
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if ($forum = get_record("forum", "id", $post->forum) ) {
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if ($forum->type == "teacher") {
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if (!isteacher($course->id)) {
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continue;
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} else {
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$teacherpost = "COLOR=$COURSE_TEACHER_COLOR";
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}
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}
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}
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if (! $heading) {
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print_headline(get_string("newforumposts").":");
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$heading = true;
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$content = true;
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}
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$date = userdate($post->modified, "%e %b, %H:%M");
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echo "<P><FONT SIZE=1 $teacherpost>$date - $post->firstname $post->lastname<BR>";
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echo "\"<A HREF=\"$CFG->wwwroot/mod/forum/$log->url\">";
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if ($log->action == "add") {
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echo "<B>$post->subject</B>";
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} else {
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echo "$post->subject";
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}
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echo "</A>\"</FONT></P>";
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}
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}
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}
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if (! $content) {
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echo "<FONT SIZE=2>".get_string("nothingnew")."</FONT>";
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}
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}
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function unenrol_student_in_course($user, $course) {
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global $db;
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return $db->Execute("DELETE FROM user_students WHERE user = '$user' AND course = '$course'");
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}
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function enrol_student_in_course($user, $course) {
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global $db;
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$timenow = time();
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$rs = $db->Execute("INSERT INTO user_students (user, course, start, end, time)
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VALUES ($user, $course, 0, 0, $timenow)");
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if ($rs) {
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return true;
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} else {
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return false;
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}
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}
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function get_all_mods($courseid, &$mods, &$modnames, &$modnamesplural, &$modnamesused) {
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// Returns a number of useful structures for course displays
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$mods = NULL; // course modules indexed by id
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$modnames = NULL; // all course module names
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$modnamesplural= NULL; // all course module names (plural form)
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$modnamesused = NULL; // course module names used
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if ($allmods = get_records_sql("SELECT * FROM modules") ) {
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foreach ($allmods as $mod) {
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$modnames[$mod->name] = get_string("modulename", "$mod->name");
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$modnamesplural[$mod->name] = get_string("modulenameplural", "$mod->name");
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}
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asort($modnames);
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} else {
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error("No modules are installed!");
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}
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if ($rawmods = get_records_sql("SELECT cm.*, m.name as modname
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FROM modules m, course_modules cm
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WHERE cm.course = '$courseid'
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AND cm.deleted = '0'
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AND cm.module = m.id ") ) {
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foreach($rawmods as $mod) { // Index the mods
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$mods[$mod->id] = $mod;
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$mods[$mod->id]->modfullname = $modnames[$mod->modname];
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$modnamesused[$mod->modname] = $modnames[$mod->modname];
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}
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asort($modnamesused);
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}
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}
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function get_all_sections($courseid) {
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return get_records_sql("SELECT section, id, course, summary, sequence
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FROM course_sections
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WHERE course = '$courseid'
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ORDER BY section");
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}
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function print_section($courseid, $section, $mods, $modnamesused, $absolute=false, $width="100%") {
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global $CFG;
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echo "<TABLE WIDTH=\"$width\"><TR><TD>\n";
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if ($section->sequence) {
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$sectionmods = explode(",", $section->sequence);
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foreach ($sectionmods as $modnumber) {
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$mod = $mods[$modnumber];
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$instancename = get_field("$mod->modname", "name", "id", "$mod->instance");
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echo "<IMG SRC=\"$CFG->wwwroot/mod/$mod->modname/icon.gif\" HEIGHT=16 WIDTH=16 ALT=\"$mod->modfullname\">";
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echo " <FONT SIZE=2><A TITLE=\"$mod->modfullname\"";
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echo " HREF=\"$CFG->wwwroot/mod/$mod->modname/view.php?id=$mod->id\">$instancename</A></FONT>";
|
|
if (isediting($courseid)) {
|
|
echo make_editing_buttons($mod->id, $absolute);
|
|
}
|
|
echo "<BR>\n";
|
|
}
|
|
}
|
|
echo "</TD></TR></TABLE><BR>\n\n";
|
|
}
|
|
|
|
function print_side_block($heading="", $list=NULL, $footer="", $icons=NULL, $width=180) {
|
|
|
|
echo "<TABLE WIDTH=\"$width\">\n";
|
|
echo "<TR><TD COLSPAN=2><P><B><FONT SIZE=2>$heading</TD></TR>\n";
|
|
if ($list) {
|
|
foreach($list as $key => $string) {
|
|
echo "<TR><TD VALIGN=top WIDTH=12>";
|
|
if ($icons[$key]) {
|
|
echo $icons[$key];
|
|
} else {
|
|
echo "";
|
|
}
|
|
echo "</TD>\n<TD WIDTH=100% VALIGN=top>";
|
|
echo "<P><FONT SIZE=2>$string</FONT></P>";
|
|
echo "</TD></TR>\n";
|
|
}
|
|
}
|
|
if ($footer) {
|
|
echo "<TR><TD></TD><TD ALIGN=left><P><FONT SIZE=2>$footer</TD></TR>\n";
|
|
}
|
|
echo "</TABLE><BR>\n\n";
|
|
}
|
|
|
|
function print_admin_links ($siteid, $width=180) {
|
|
global $THEME, $CFG;
|
|
|
|
print_simple_box(get_string("administration"), $align="CENTER", $width, $color="$THEME->cellheading");
|
|
$icon = "<IMG SRC=\"$CFG->wwwroot/pix/i/settings.gif\" HEIGHT=16 WIDTH=16 ALT=\"\">";
|
|
$moddata[]="<A HREF=\"$CFG->wwwroot/course/log.php?id=$siteid\">".get_string("sitelogs")."</A>";
|
|
$modicon[]=$icon;
|
|
$moddata[]="<A HREF=\"$CFG->wwwroot/admin/site.php\">".get_string("sitesettings")."</A>";
|
|
$modicon[]=$icon;
|
|
$moddata[]="<A HREF=\"$CFG->wwwroot/theme/index.php\">".get_string("choosetheme")."</A>";
|
|
$modicon[]=$icon;
|
|
$moddata[]="<A HREF=\"$CFG->wwwroot/course/edit.php\">".get_string("addnewcourse")."</A>";
|
|
$modicon[]=$icon;
|
|
$moddata[]="<A HREF=\"$CFG->wwwroot/course/teacher.php\">".get_string("assignteachers")."</A>";
|
|
$modicon[]=$icon;
|
|
$moddata[]="<A HREF=\"$CFG->wwwroot/course/delete.php\">".get_string("deletecourse")."</A>";
|
|
$modicon[]=$icon;
|
|
$moddata[]="<A HREF=\"$CFG->wwwroot/admin/user.php?newuser=true\">".get_string("addnewuser")."</A>";
|
|
$modicon[]=$icon;
|
|
$moddata[]="<A HREF=\"$CFG->wwwroot/admin/user.php\">".get_string("edituser")."</A>";
|
|
$modicon[]=$icon;
|
|
$fulladmin = "<P><A HREF=\"$CFG->wwwroot/admin/\">".get_string("admin")."</A>...";
|
|
print_side_block("", $moddata, "$fulladmin", $modicon, $width);
|
|
echo "<IMG SRC=\"$CFG->wwwroot/pix/spacer.gif\" WIDTH=\"$width\" HEIGHT=1><BR>";
|
|
}
|
|
|
|
function print_course_admin_links($courseid, $width=180) {
|
|
global $THEME, $CFG;
|
|
|
|
echo "<BR>";
|
|
$adminicon[]="<IMG SRC=\"$CFG->wwwroot/pix/i/edit.gif\" HEIGHT=16 WIDTH=16 ALT=\"\">";
|
|
if (isediting($courseid)) {
|
|
$admindata[]="<A HREF=\"view.php?id=$courseid&edit=off\">".get_string("turneditingoff")."</A>";
|
|
} else {
|
|
$admindata[]="<A HREF=\"view.php?id=$courseid&edit=on\">".get_string("turneditingon")."</A>";
|
|
}
|
|
$admindata[]="<A HREF=\"edit.php?id=$courseid\">".get_string("settings")."...</A>";
|
|
$adminicon[]="<IMG SRC=\"$CFG->wwwroot/pix/i/settings.gif\" HEIGHT=16 WIDTH=16 ALT=\"\">";
|
|
$admindata[]="<A HREF=\"log.php?id=$courseid\">".get_string("logs")."...</A>";
|
|
$adminicon[]="<IMG SRC=\"$CFG->wwwroot/pix/i/log.gif\" HEIGHT=16 WIDTH=16 ALT=\"\">";
|
|
$admindata[]="<A HREF=\"$CFG->wwwroot/files/index.php?id=$courseid\">".get_string("files")."...</A>";
|
|
$adminicon[]="<IMG SRC=\"$CFG->wwwroot/files/pix/files.gif\" HEIGHT=16 WIDTH=16 ALT=\"\">";
|
|
|
|
$admindata[]="<A HREF=\"$CFG->wwwroot/doc/view.php?id=$courseid&file=teacher.html\">".get_string("help")."...</A>";
|
|
$adminicon[]="<IMG SRC=\"$CFG->wwwroot/mod/reading/icon.gif\" HEIGHT=16 WIDTH=16 ALT=\"\">";
|
|
|
|
if ($teacherforum = forum_get_course_forum($courseid, "teacher")) {
|
|
$admindata[]="<A HREF=\"$CFG->wwwroot/mod/forum/view.php?f=$teacherforum->id\">".get_string("teacherforum")."</A>";
|
|
$adminicon[]="<IMG SRC=\"$CFG->wwwroot/mod/forum/icon.gif\" HEIGHT=16 WIDTH=16 ALT=\"\">";
|
|
}
|
|
|
|
print_simple_box(get_string("administration"), $align="CENTER", $width, $color="$THEME->cellheading");
|
|
print_side_block("", $admindata, "", $adminicon, $width);
|
|
}
|
|
|
|
|
|
function print_log_graph($course, $userid=0, $type="course.png", $date=0) {
|
|
global $CFG;
|
|
echo "<IMG BORDER=0 SRC=\"$CFG->wwwroot/course/loggraph.php?id=$course->id&user=$userid&type=$type&date=$date\">";
|
|
}
|
|
|
|
|
|
|
|
/// MODULE FUNCTIONS /////////////////////////////////////////////////////////////////
|
|
|
|
function add_course_module($mod) {
|
|
GLOBAL $db;
|
|
|
|
$timenow = time();
|
|
|
|
if (!$rs = $db->Execute("INSERT into course_modules
|
|
SET course = '$mod->course',
|
|
module = '$mod->module',
|
|
instance = '$mod->instance',
|
|
section = '$mod->section',
|
|
added = '$timenow' ")) {
|
|
return 0;
|
|
}
|
|
|
|
// Get it out again - this is the most compatible way to determine the ID
|
|
if ($rs = $db->Execute("SELECT id FROM course_modules
|
|
WHERE module = $mod->module AND added = $timenow")) {
|
|
return $rs->fields[0];
|
|
} else {
|
|
return 0;
|
|
}
|
|
|
|
}
|
|
|
|
function add_mod_to_section($mod) {
|
|
// Returns the course_sections ID where the mod is inserted
|
|
GLOBAL $db;
|
|
|
|
if ($cw = get_record_sql("SELECT * FROM course_sections
|
|
WHERE course = '$mod->course' AND section = '$mod->section'") ) {
|
|
|
|
if ($cw->sequence) {
|
|
$newsequence = "$cw->sequence,$mod->coursemodule";
|
|
} else {
|
|
$newsequence = "$mod->coursemodule";
|
|
}
|
|
if (!$rs = $db->Execute("UPDATE course_sections SET sequence = '$newsequence' WHERE id = '$cw->id'")) {
|
|
return 0;
|
|
} else {
|
|
return $cw->id; // Return course_sections ID that was used.
|
|
}
|
|
|
|
} else { // Insert a new record
|
|
if (!$rs = $db->Execute("INSERT into course_sections
|
|
SET course = '$mod->course',
|
|
section = '$mod->section',
|
|
summary = '',
|
|
sequence = '$mod->coursemodule' ")) {
|
|
return 0;
|
|
}
|
|
// Get it out again - this is the most compatible way to determine the ID
|
|
if ($rs = $db->Execute("SELECT id FROM course_sections
|
|
WHERE course = '$mod->course' AND section = '$mod->section'")) {
|
|
return $rs->fields[0];
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
function delete_course_module($mod) {
|
|
return set_field("course_modules", "deleted", 1, "id", $mod);
|
|
}
|
|
|
|
function delete_mod_from_section($mod, $section) {
|
|
GLOBAL $db;
|
|
|
|
if ($cw = get_record("course_sections", "id", "$section") ) {
|
|
|
|
$modarray = explode(",", $cw->sequence);
|
|
|
|
if ($key = array_keys ($modarray, $mod)) {
|
|
array_splice($modarray, $key[0], 1);
|
|
$newsequence = implode(",", $modarray);
|
|
return set_field("course_sections", "sequence", $newsequence, "id", $cw->id);
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
function move_module($id, $move) {
|
|
GLOBAL $db;
|
|
|
|
if (!$move) {
|
|
return true;
|
|
}
|
|
|
|
if (! $cm = get_record("course_modules", "id", $id)) {
|
|
error("This course module doesn't exist");
|
|
}
|
|
|
|
if (! $thissection = get_record("course_sections", "id", $cm->section)) {
|
|
error("This course section doesn't exist");
|
|
}
|
|
|
|
$mods = explode(",", $thissection->sequence);
|
|
|
|
$len = count($mods);
|
|
$pos = array_keys($mods, $cm->id);
|
|
$thepos = $pos[0];
|
|
|
|
if ($len == 0 || count($pos) == 0 ) {
|
|
error("Very strange. Could not find the required module in this section.");
|
|
}
|
|
|
|
if ($len == 1) {
|
|
$first = true;
|
|
$last = true;
|
|
} else {
|
|
$first = ($thepos == 0);
|
|
$last = ($thepos == $len - 1);
|
|
}
|
|
|
|
if ($move < 0) { // Moving the module up
|
|
|
|
if ($first) {
|
|
if ($thissection->section == 1) { // First section, do nothing
|
|
return true;
|
|
} else { // Push onto end of previous section
|
|
$prevsectionnumber = $thissection->section - 1;
|
|
if (! $prevsection = get_record_sql("SELECT * FROM course_sections
|
|
WHERE course='$thissection->course'
|
|
AND section='$prevsectionnumber' ")) {
|
|
error("Previous section ($prevsection->id) doesn't exist");
|
|
}
|
|
|
|
if ($prevsection->sequence) {
|
|
$newsequence = "$prevsection->sequence,$cm->id";
|
|
} else {
|
|
$newsequence = "$cm->id";
|
|
}
|
|
|
|
if (! set_field("course_sections", "sequence", $newsequence, "id", $prevsection->id)) {
|
|
error("Previous section could not be updated");
|
|
}
|
|
|
|
if (! set_field("course_modules", "section", $prevsection->id, "id", $cm->id)) {
|
|
error("Module could not be updated");
|
|
}
|
|
|
|
array_splice($mods, 0, 1);
|
|
$newsequence = implode(",", $mods);
|
|
if (! set_field("course_sections", "sequence", $newsequence, "id", $thissection->id)) {
|
|
error("Module could not be updated");
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
} else { // move up within this section
|
|
$swap = $mods[$thepos-1];
|
|
$mods[$thepos-1] = $mods[$thepos];
|
|
$mods[$thepos] = $swap;
|
|
|
|
$newsequence = implode(",", $mods);
|
|
if (! set_field("course_sections", "sequence", $newsequence, "id", $thissection->id)) {
|
|
error("This section could not be updated");
|
|
}
|
|
return true;
|
|
}
|
|
|
|
} else { // Moving the module down
|
|
|
|
if ($last) {
|
|
$nextsectionnumber = $thissection->section + 1;
|
|
if ($nextsection = get_record_sql("SELECT * FROM course_sections
|
|
WHERE course='$thissection->course'
|
|
AND section='$nextsectionnumber' ")) {
|
|
|
|
if ($nextsection->sequence) {
|
|
$newsequence = "$cm->id,$nextsection->sequence";
|
|
} else {
|
|
$newsequence = "$cm->id";
|
|
}
|
|
|
|
if (! set_field("course_sections", "sequence", $newsequence, "id", $nextsection->id)) {
|
|
error("Next section could not be updated");
|
|
}
|
|
|
|
if (! set_field("course_modules", "section", $nextsection->id, "id", $cm->id)) {
|
|
error("Module could not be updated");
|
|
}
|
|
|
|
array_splice($mods, $thepos, 1);
|
|
$newsequence = implode(",", $mods);
|
|
if (! set_field("course_sections", "sequence", $newsequence, "id", $thissection->id)) {
|
|
error("This section could not be updated");
|
|
}
|
|
return true;
|
|
|
|
} else { // There is no next section, so just return
|
|
return true;
|
|
|
|
}
|
|
} else { // move down within this section
|
|
$swap = $mods[$thepos+1];
|
|
$mods[$thepos+1] = $mods[$thepos];
|
|
$mods[$thepos] = $swap;
|
|
|
|
$newsequence = implode(",", $mods);
|
|
if (! set_field("course_sections", "sequence", $newsequence, "id", $thissection->id)) {
|
|
error("This section could not be updated");
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
function make_editing_buttons($moduleid, $absolute=false) {
|
|
global $CFG;
|
|
|
|
$delete = get_string("delete");
|
|
$moveup = get_string("moveup");
|
|
$movedown = get_string("movedown");
|
|
$update = get_string("update");
|
|
|
|
if ($absolute) {
|
|
$path = "$CFG->wwwroot/course/";
|
|
} else {
|
|
$path = "";
|
|
}
|
|
return "
|
|
<A TITLE=\"$delete\" HREF=\"".$path."mod.php?delete=$moduleid\"><IMG
|
|
SRC=".$path."../pix/t/delete.gif BORDER=0></A>
|
|
<A TITLE=\"$moveup\" HREF=\"".$path."mod.php?id=$moduleid&move=-1\"><IMG
|
|
SRC=".$path."../pix/t/up.gif BORDER=0></A>
|
|
<A TITLE=\"$movedown\" HREF=\"".$path."mod.php?id=$moduleid&move=1\"><IMG
|
|
SRC=".$path."../pix/t/down.gif BORDER=0></A>
|
|
<A TITLE=\"$update\" HREF=\"".$path."mod.php?update=$moduleid\"><IMG
|
|
SRC=".$path."../pix/t/edit.gif BORDER=0></A>";
|
|
}
|
|
|
|
?>
|