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search.php
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<?php
/// Displays external information about a course
require_once("../config.php");
require_once("lib.php");
$search = optional_param('search', '', PARAM_RAW); // search words
$page = optional_param('page', 0, PARAM_INT); // which page to show
$perpage = optional_param('perpage', 10, PARAM_INT); // how many per page
$moveto = optional_param('moveto', 0, PARAM_INT); // move to category
$edit = optional_param('edit', -1, PARAM_BOOL);
$hide = optional_param('hide', 0, PARAM_INT);
$show = optional_param('show', 0, PARAM_INT);
$blocklist = optional_param('blocklist', 0, PARAM_INT);
$modulelist= optional_param('modulelist', '', PARAM_PLUGIN);
$PAGE->set_url('/course/search.php', compact('search', 'page', 'perpage', 'blocklist', 'modulelist', 'edit'));
$PAGE->set_context(get_context_instance(CONTEXT_SYSTEM));
$search = trim(strip_tags($search)); // trim & clean raw searched string
if ($search) {
$searchterms = explode(" ", $search); // Search for words independently
foreach ($searchterms as $key => $searchterm) {
if (strlen($searchterm) < 2) {
unset($searchterms[$key]);
}
}
$search = trim(implode(" ", $searchterms));
}
$site = get_site();
$urlparams = array();
foreach (array('search', 'page', 'blocklist', 'modulelist') as $param) {
if (!empty($$param)) {
$urlparams[$param] = $$param;
}
}
if ($perpage != 10) {
$urlparams['perpage'] = $perpage;
}
$PAGE->set_url('/course/search.php', $urlparams);
$PAGE->set_context(get_context_instance(CONTEXT_SYSTEM));
$PAGE->set_pagelayout('standard');
if ($CFG->forcelogin) {
require_login();
}
if (can_edit_in_category()) {
if ($edit !== -1) {
$USER->editing = $edit;
}
$adminediting = $PAGE->user_is_editing();
} else {
$adminediting = false;
}
/// Editing functions
if (has_capability('moodle/course:visibility', get_context_instance(CONTEXT_SYSTEM))) {
/// Hide or show a course
if ($hide or $show and confirm_sesskey()) {
if ($hide) {
$course = $DB->get_record("course", array("id"=>$hide));
$visible = 0;
} else {
$course = $DB->get_record("course", array("id"=>$show));
$visible = 1;
}
if ($course) {
$DB->set_field("course", "visible", $visible, array("id"=>$course->id));
}
}
}
$capabilities = array('moodle/course:create', 'moodle/category:manage');
if (has_any_capability($capabilities, get_context_instance(CONTEXT_SYSTEM)) && ($perpage != 99999)) {
$perpage = 30;
}
$displaylist = array();
$parentlist = array();
make_categories_list($displaylist, $parentlist);
$strcourses = get_string("courses");
$strsearch = get_string("search");
$strsearchresults = get_string("searchresults");
$strcategory = get_string("category");
$strselect = get_string("select");
$strselectall = get_string("selectall");
$strdeselectall = get_string("deselectall");
$stredit = get_string("edit");
$strfrontpage = get_string('frontpage', 'admin');
$strnovalidcourses = get_string('novalidcourses');
if (empty($search) and empty($blocklist) and empty($modulelist)) {
$PAGE->navbar->add($strcourses, new moodle_url('/course/index.php'));
$PAGE->navbar->add($strsearch);
$PAGE->set_title("$site->fullname : $strsearch");
$PAGE->set_heading($site->fullname);
echo $OUTPUT->header();
echo $OUTPUT->box_start();
echo "<center>";
echo "<br />";
print_course_search("", false, "plain");
echo "<br /><p>";
print_string("searchhelp");
echo "</p>";
echo "</center>";
echo $OUTPUT->box_end();
echo $OUTPUT->footer();
exit;
}
if (!empty($moveto) and $data = data_submitted() and confirm_sesskey()) { // Some courses are being moved
if (! $destcategory = $DB->get_record("course_categories", array("id"=>$data->moveto))) {
print_error('cannotfindcategory', '', '', $data->moveto);
}
$courses = array();
foreach ( $data as $key => $value ) {
if (preg_match('/^c\d+$/', $key)) {
array_push($courses, substr($key, 1));
}
}
move_courses($courses, $data->moveto);
}
// get list of courses containing blocks if required
if (!empty($blocklist) and confirm_sesskey()) {
$blockname = $DB->get_field('block', 'name', array('id' => $blocklist));
$courses = array();
$courses = $DB->get_records_sql("
SELECT * FROM {course} WHERE id IN (
SELECT DISTINCT ctx.instanceid
FROM {context} ctx
JOIN {block_instances} bi ON bi.parentcontextid = ctx.id
WHERE ctx.contextlevel = " . CONTEXT_COURSE . " AND bi.blockname = ?)",
array($blockname));
$totalcount = count($courses);
//Keep only chunk of array which you want to display
if ($totalcount > $perpage) {
$courses = array_chunk($courses, $perpage, true);
$courses = $courses[$page];
}
foreach ($courses as $course) {
$courses[$course->id] = $course;
}
}
// get list of courses containing modules if required
elseif (!empty($modulelist) and confirm_sesskey()) {
$modulename = $modulelist;
$sql = "SELECT DISTINCT c.id FROM {".$modulelist."} module, {course} c"
." WHERE module.course=c.id";
$courseids = $DB->get_records_sql($sql);
$courses = array();
if (!empty($courseids)) {
$firstcourse = $page*$perpage;
$lastcourse = $page*$perpage + $perpage -1;
$i = 0;
foreach ($courseids as $courseid) {
if ($i>= $firstcourse && $i<=$lastcourse) {
$courses[$courseid->id] = $DB->get_record('course', array('id'=> $courseid->id));
}
$i++;
}
$totalcount = count($courseids);
}
else {
$totalcount = 0;
}
}
else {
$courses = get_courses_search($searchterms, "fullname ASC",
$page, $perpage, $totalcount);
}
$searchform = print_course_search($search, true, "navbar");
if (!empty($courses) && has_capability('moodle/course:create', get_context_instance(CONTEXT_SYSTEM))) {
$searchform = '';
// not sure if this capability is the best here
if (has_capability('moodle/category:manage', get_context_instance(CONTEXT_SYSTEM))) {
if ($PAGE->user_is_editing()) {
$string = get_string("turneditingoff");
$edit = "off";
} else {
$string = get_string("turneditingon");
$edit = "on";
}
$aurl = new moodle_url("$CFG->wwwroot/course/search.php", array(
'edit' => $edit,
'sesskey' => sesskey(),
'search' => $search,
'page' => $page,
'perpage' => $perpage));
$searchform = $OUTPUT->single_button($aurl, $string, 'get');
}
}
$PAGE->navbar->add($strcourses, new moodle_url('/course/index.php'));
$PAGE->navbar->add($strsearch, new moodle_url('/course/search.php'));
if (!empty($search)) {
$PAGE->navbar->add(s($search));
}
$PAGE->set_title("$site->fullname : $strsearchresults");
$PAGE->set_heading($site->fullname);
$PAGE->set_button($searchform);
echo $OUTPUT->header();
$lastcategory = -1;
if ($courses) {
echo $OUTPUT->heading("$strsearchresults: $totalcount");
$encodedsearch = urlencode($search);
// add the module/block parameter to the paging bar if they exists
$modulelink = "";
if (!empty($modulelist) and confirm_sesskey()) {
$modulelink = "&modulelist=".$modulelist."&sesskey=".sesskey();
} else if (!empty($blocklist) and confirm_sesskey()) {
$modulelink = "&blocklist=".$blocklist."&sesskey=".sesskey();
}
print_navigation_bar($totalcount, $page, $perpage, $encodedsearch, $modulelink);
if (!$adminediting) {
foreach ($courses as $course) {
$coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
$course->summary .= "<br /><p class=\"category\">";
$course->summary .= "$strcategory: <a href=\"category.php?id=$course->category\">";
$course->summary .= $displaylist[$course->category];
$course->summary .= "</a></p>";
print_course($course, $search);
echo $OUTPUT->spacer(array('height'=>5, 'width'=>5, 'br'=>true)); // should be done with CSS instead
}
} else {
/// Show editing UI.
echo "<form id=\"movecourses\" action=\"search.php\" method=\"post\">\n";
echo "<div><input type=\"hidden\" name=\"sesskey\" value=\"".sesskey()."\" />\n";
echo "<input type=\"hidden\" name=\"search\" value=\"".s($search)."\" />\n";
echo "<input type=\"hidden\" name=\"page\" value=\"$page\" />\n";
echo "<input type=\"hidden\" name=\"perpage\" value=\"$perpage\" /></div>\n";
echo "<table border=\"0\" cellspacing=\"2\" cellpadding=\"4\" class=\"generalbox boxaligncenter\">\n<tr>\n";
echo "<th scope=\"col\">$strcourses</th>\n";
echo "<th scope=\"col\">$strcategory</th>\n";
echo "<th scope=\"col\">$strselect</th>\n";
echo "<th scope=\"col\">$stredit</th></tr>\n";
foreach ($courses as $course) {
$coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
$linkcss = $course->visible ? "" : " class=\"dimmed\" ";
// are we displaying the front page (courseid=1)?
if ($course->id == 1) {
echo "<tr>\n";
echo "<td><a href=\"$CFG->wwwroot\">$strfrontpage</a></td>\n";
// can't do anything else with the front page
echo " <td> </td>\n"; // category place
echo " <td> </td>\n"; // select place
echo " <td> </td>\n"; // edit place
echo "</tr>\n";
continue;
}
echo "<tr>\n";
echo "<td><a $linkcss href=\"view.php?id=$course->id\">"
. highlight($search, format_string($course->fullname)) . "</a></td>\n";
echo "<td>".$displaylist[$course->category]."</td>\n";
echo "<td>\n";
// this is ok since this will get inherited from course category context
// if it is set
if (has_capability('moodle/category:manage', $coursecontext)) {
echo "<input type=\"checkbox\" name=\"c$course->id\" />\n";
} else {
echo "<input type=\"checkbox\" name=\"c$course->id\" disabled=\"disabled\" />\n";
}
echo "</td>\n";
echo "<td>\n";
// checks whether user can update course settings
if (has_capability('moodle/course:update', $coursecontext)) {
echo "<a title=\"".get_string("settings")."\" href=\"$CFG->wwwroot/course/edit.php?id=$course->id\">\n<img".
" src=\"" . $OUTPUT->pix_url('t/edit') . "\" class=\"iconsmall\" alt=\"".get_string("settings")."\" /></a>\n ";
}
// checks whether user can do role assignment
if (has_capability('moodle/course:enrolreview', $coursecontext)) {
echo'<a title="'.get_string('enrolledusers', 'enrol').'" href="'.$CFG->wwwroot.'/enrol/users.php?id='.$course->id.'">';
echo '<img src="'.$OUTPUT->pix_url('i/users') . '" class="iconsmall" alt="'.get_string('enrolledusers', 'enrol').'" /></a> ' . "\n";
}
// checks whether user can delete course
if (has_capability('moodle/course:delete', $coursecontext)) {
echo "<a title=\"".get_string("delete")."\" href=\"delete.php?id=$course->id\">\n<img".
" src=\"" . $OUTPUT->pix_url('t/delete') . "\" class=\"iconsmall\" alt=\"".get_string("delete")."\" /></a>\n ";
}
// checks whether user can change visibility
if (has_capability('moodle/course:visibility', $coursecontext)) {
if (!empty($course->visible)) {
echo "<a title=\"".get_string("hide")."\" href=\"search.php?search=$encodedsearch&perpage=$perpage&page=$page&hide=$course->id&sesskey=".sesskey()."\">\n<img".
" src=\"" . $OUTPUT->pix_url('t/hide') . "\" class=\"iconsmall\" alt=\"".get_string("hide")."\" /></a>\n ";
} else {
echo "<a title=\"".get_string("show")."\" href=\"search.php?search=$encodedsearch&perpage=$perpage&page=$page&show=$course->id&sesskey=".sesskey()."\">\n<img".
" src=\"" . $OUTPUT->pix_url('t/show') . "\" class=\"iconsmall\" alt=\"".get_string("show")."\" /></a>\n ";
}
}
// checks whether user can do site backup
if (has_capability('moodle/backup:backupcourse', $coursecontext)) {
echo "<a title=\"".get_string("backup")."\" href=\"../backup/backup.php?id=$course->id\">\n<img".
" src=\"" . $OUTPUT->pix_url('t/backup') . "\" class=\"iconsmall\" alt=\"".get_string("backup")."\" /></a>\n ";
}
// checks whether user can do restore
if (has_capability('moodle/restore:restorecourse', $coursecontext)) {
echo "<a title=\"".get_string("restore")."\" href=\"../files/index.php?id=$course->id&wdir=/backupdata\">\n<img".
" src=\"" . $OUTPUT->pix_url('t/restore') . "\" class=\"iconsmall\" alt=\"".get_string("restore")."\" /></a>\n ";
}
echo "</td>\n</tr>\n";
}
echo "<tr>\n<td colspan=\"4\" style=\"text-align:center\">\n";
echo "<br />";
echo "<input type=\"button\" onclick=\"checkall()\" value=\"$strselectall\" />\n";
echo "<input type=\"button\" onclick=\"checknone()\" value=\"$strdeselectall\" />\n";
echo html_writer::select($displaylist, 'moveto', '', array(''=>get_string('moveselectedcoursesto')), array('id'=>'movetoid'));
$PAGE->requires->js_init_call('M.util.init_select_autosubmit', array('movecourses', 'movetoid', false));
echo "</td>\n</tr>\n";
echo "</table>\n</form>";
}
print_navigation_bar($totalcount,$page,$perpage,$encodedsearch,$modulelink);
} else {
if (!empty($search)) {
echo $OUTPUT->heading(get_string("nocoursesfound",'', s($search)));
}
else {
echo $OUTPUT->heading( $strnovalidcourses );
}
}
echo "<br /><br />";
print_course_search($search);
echo $OUTPUT->footer();
/**
* Print a list navigation bar
* Display page numbers, and a link for displaying all entries
* @param integer $totalcount - number of entry to display
* @param integer $page - page number
* @param integer $perpage - number of entry per page
* @param string $encodedsearch
* @param string $modulelink - module name
*/
function print_navigation_bar($totalcount,$page,$perpage,$encodedsearch,$modulelink) {
global $OUTPUT;
echo $OUTPUT->paging_bar($totalcount, $page, $perpage, "search.php?search=$encodedsearch".$modulelink."&perpage=$perpage");
//display
if ($perpage != 99999 && $totalcount > $perpage) {
echo "<center><p>";
echo "<a href=\"search.php?search=$encodedsearch".$modulelink."&perpage=99999\">".get_string("showall", "", $totalcount)."</a>";
echo "</p></center>";
} else if ($perpage === 99999) {
$defaultperpage = 10;
//If user has course:create or category:manage capability the show 30 records.
$capabilities = array('moodle/course:create', 'moodle/category:manage');
if (has_any_capability($capabilities, get_context_instance(CONTEXT_SYSTEM))) {
$defaultperpage = 30;
}
echo "<center><p>";
echo "<a href=\"search.php?search=$encodedsearch".$modulelink."&perpage=".$defaultperpage."\">".get_string("showperpage", "", $defaultperpage)."</a>";
echo "</p></center>";
}
}