moodle/course/index.php
mjollnir_ 0705ff843b Course request feature. Allows normal users to 'request' courses they would like created,
and admins can approve or reject pending courses.

Also, contains the ability to restrict activity modules on a per course basic. Strict config options:
  enable restricting modules at ALL (for all courses, no courses, requested courses), what to do by default for newly created courses
  as well as what modules to enable for above category by default.

This feature was created for the aim of building a community side to moodle - for institutes that have strict courses and enrolments, allowing normal users to request interest courses is a good feature,
but some modules may be redundant (assignment, lesson, quiz etc)

  Please test!
2005-08-16 06:15:49 +00:00

408 lines
15 KiB
PHP

<?php // $Id$
// For most people, just lists the course categories
// Allows the admin to create, delete and rename course categories
require_once("../config.php");
require_once("lib.php");
$edit = optional_param( 'edit','',PARAM_ALPHA );
$delete = optional_param( 'delete',0,PARAM_INT );
$hide = optional_param( 'hide',0,PARAM_INT );
$show = optional_param( 'show',0,PARAM_INT );
$sure = optional_param( 'sure','',PARAM_CLEAN );
$move = optional_param( 'move',0,PARAM_INT );
$moveto = optional_param( 'moveto',-1,PARAM_INT );
$moveup = optional_param( 'moveup',0,PARAM_INT );
$movedown = optional_param( 'movedown',0,PARAM_INT );
if (!$site = get_site()) {
error("Site isn't defined!");
}
if ($CFG->forcelogin) {
require_login();
}
if (isadmin()) {
if (!empty($edit) and confirm_sesskey()) {
if ($edit == "on") {
$USER->categoriesediting = true;
} else if ($edit == "off") {
$USER->categoriesediting = false;
}
}
}
$adminediting = (isadmin() and !empty($USER->categoriesediting));
/// Unless it's an editing admin, just print the regular listing of courses/categories
if (!$adminediting) {
$countcategories = count_records("course_categories");
if ($countcategories > 1) {
$strcourses = get_string("courses");
$strcategories = get_string("categories");
print_header("$site->shortname: $strcategories", $strcourses,
$strcategories, "", "", true, update_categories_button());
print_heading($strcategories);
print_simple_box_start("center", "50%", "#FFFFFF", 5, "categorybox");
print_whole_category_list();
print_simple_box_end();
print_course_search();
} else {
$strfulllistofcourses = get_string("fulllistofcourses");
print_header("$site->shortname: $strfulllistofcourses", $strfulllistofcourses, $strfulllistofcourses,
'', '', true, update_categories_button());
print_courses(0, "80%");
}
echo "<center>";
if (iscreator()) { // Print link to create a new course
print_single_button("edit.php", NULL, get_string("addnewcourse"), "get");
}
if (!empty($CFG->enablecourserequests)) {
print_single_button('request.php',NULL, get_string('requestcourse'),"get");
}
echo "</center>";
print_footer();
exit;
}
/// From now on is all the admin functions
require_login();
if (!isadmin()) {
error("Only administrators can use this page!");
}
/// Print headings
$stradministration = get_string("administration");
$strcategories = get_string("categories");
$strcategory = get_string("category");
$strcourses = get_string("courses");
$stredit = get_string("edit");
$strdelete = get_string("delete");
$straction = get_string("action");
$straddnewcategory = get_string("addnewcategory");
print_header("$site->shortname: $strcategories", "$site->fullname",
"<a href=\"../$CFG->admin/index.php\">$stradministration</a> -> $strcategories",
"addform.addcategory", "", true, update_categories_button());
print_heading($strcategories);
/// If data for a new category was submitted, then add it
if ($form = data_submitted() and confirm_sesskey()) {
if (!empty($form->addcategory)) {
unset($newcategory);
$newcategory->name = $form->addcategory;
$newcategory->sortorder = 999;
if (!insert_record("course_categories", $newcategory)) {
notify("Could not insert the new category '$newcategory->name'");
} else {
notify(get_string("categoryadded", "", $newcategory->name));
}
}
}
/// Delete a category if necessary
if (!empty($delete) and confirm_sesskey()) {
if ($deletecat = get_record("course_categories", "id", $delete)) {
if (!empty($sure) && $sure == md5($deletecat->timemodified)) {
/// Send the children categories to live with their grandparent
if ($childcats = get_records("course_categories", "parent", $deletecat->id)) {
foreach ($childcats as $childcat) {
if (! set_field("course_categories", "parent", $deletecat->parent, "id", $childcat->id)) {
error("Could not update a child category!", "index.php");
}
}
}
/// If the grandparent is a valid (non-zero) category, then
/// send the children courses to live with their grandparent as well
if ($deletecat->parent) {
if ($childcourses = get_records("course", "category", $deletecat->id)) {
foreach ($childcourses as $childcourse) {
if (! set_field("course", "category", $deletecat->parent, "id", $childcourse->id)) {
error("Could not update a child course!", "index.php");
}
}
}
}
/// Finally delete the category itself
if (delete_records("course_categories", "id", $deletecat->id)) {
notify(get_string("categorydeleted", "", $deletecat->name));
}
}
else {
$strdeletecategorycheck = get_string("deletecategorycheck","",$deletecat->name);
notice_yesno("$strdeletecategorycheck",
"index.php?delete=$delete&amp;sure=".md5($deletecat->timemodified)."&amp;sesskey=$USER->sesskey",
"index.php?sesskey=$USER->sesskey");
exit();
}
}
}
/// Create a default category if necessary
if (!$categories = get_categories()) { /// No category yet!
// Try and make one
unset($tempcat);
$tempcat->name = get_string("miscellaneous");
if (!$tempcat->id = insert_record("course_categories", $tempcat)) {
error("Serious error: Could not create a default category!");
}
}
/// Move a category to a new parent if required
if (!empty($move) and ($moveto>=0) and confirm_sesskey()) {
if ($tempcat = get_record("course_categories", "id", $move)) {
if ($tempcat->parent != $moveto) {
if (! set_field("course_categories", "parent", $moveto, "id", $tempcat->id)) {
notify("Could not update that category!");
}
}
}
}
/// Hide or show a category
if ((!empty($hide) or !empty($show)) and confirm_sesskey()) {
if (!empty($hide)) {
$tempcat = get_record("course_categories", "id", $hide);
$visible = 0;
} else {
$tempcat = get_record("course_categories", "id", $show);
$visible = 1;
}
if ($tempcat) {
if (! set_field("course_categories", "visible", $visible, "id", $tempcat->id)) {
notify("Could not update that category!");
}
if (! set_field("course", "visible", $visible, "category", $tempcat->id)) {
notify("Could not hide/show any courses in this category !");
}
}
}
/// Move a category up or down
if ((!empty($moveup) or !empty($movedown)) and confirm_sesskey()) {
$swapcategory = NULL;
$movecategory = NULL;
if (!empty($moveup)) {
if ($movecategory = get_record("course_categories", "id", $moveup)) {
$categories = get_categories("$movecategory->parent");
foreach ($categories as $category) {
if ($category->id == $movecategory->id) {
break;
}
$swapcategory = $category;
}
}
}
if (!empty($movedown)) {
if ($movecategory = get_record("course_categories", "id", $movedown)) {
$categories = get_categories("$movecategory->parent");
$choosenext = false;
foreach ($categories as $category) {
if ($choosenext) {
$swapcategory = $category;
break;
}
if ($category->id == $movecategory->id) {
$choosenext = true;
}
}
}
}
if ($swapcategory and $movecategory) { // Renumber everything for robustness
$count=0;
foreach ($categories as $category) {
$count++;
if ($category->id == $swapcategory->id) {
$category = $movecategory;
} else if ($category->id == $movecategory->id) {
$category = $swapcategory;
}
if (! set_field("course_categories", "sortorder", $count, "id", $category->id)) {
notify("Could not update that category!");
}
}
}
}
/// Find the default category (the one with the lowest ID)
$categories = get_categories();
$default = 99999;
foreach ($categories as $category) {
if ($category->id < $default) {
$default = $category->id;
}
}
/// Find any orphan courses that don't yet have a valid category and set to default
if ($courses = get_courses(NULL,NULL,'c.category,c.id,c.sortorder')) {
foreach ($courses as $course) {
if ($course->category and !isset($categories[$course->category])) {
set_field("course", "category", $default, "id", $course->id);
}
}
}
fix_course_sortorder();
/// Print form for creating new categories
echo "<center>";
echo "<form name=\"addform\" action=\"index.php\" method=\"post\">";
echo "<input type=\"text\" size=\"30\" alt=\"$straddnewcategory\" name=\"addcategory\" />";
echo "<input type=\"submit\" value=\"$straddnewcategory\" />";
echo "<input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />";
echo "</form>";
echo "</center>";
echo "<br />";
/// Print out the categories with all the knobs
$strcategories = get_string("categories");
$strcourses = get_string("courses");
$strmovecategoryto = get_string("movecategoryto");
$stredit = get_string("edit");
$displaylist = array();
$parentlist = array();
$displaylist[0] = get_string("top");
make_categories_list($displaylist, $parentlist, "");
echo "<table align=\"center\" border=\"0\" cellspacing=\"2\" cellpadding=\"5\" class=\"generalbox\"><tr>";
echo "<th>$strcategories</th>";
echo "<th>$strcourses</th>";
echo "<th>$stredit</th>";
echo "<th>$strmovecategoryto</th>";
echo "</tr>";
print_category_edit(NULL, $displaylist, $parentlist);
echo "</table>";
echo "<br />";
/// Print link to create a new course
echo "<center>";
unset($options);
$options["category"] = $category->id;
print_single_button("edit.php", $options, get_string("addnewcourse"), "get");
print_single_button('pending.php',NULL, get_string('coursespending'),"get");
echo "<br />";
echo "</center>";
print_footer();
function print_category_edit($category, $displaylist, $parentslist, $depth=-1, $up=false, $down=false) {
/// Recursive function to print all the categories ready for editing
global $CFG, $USER;
static $str = '';
if (empty($str)) {
$str->delete = get_string("delete");
$str->moveup = get_string("moveup");
$str->movedown = get_string("movedown");
$str->edit = get_string("editthiscategory");
$str->hide = get_string("hide");
$str->show = get_string("show");
}
if ($category) {
echo "<tr><td align=\"left\" nowrap=\"nowrap\">";
for ($i=0; $i<$depth;$i++) {
echo "&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;";
}
$linkcss = $category->visible ? "" : " class=\"dimmed\" ";
echo "<a $linkcss title=\"$str->edit\" href=\"category.php?id=$category->id&amp;edit=on&amp;sesskey=$USER->sesskey\">$category->name</a>";
echo "</td>";
echo "<td align=\"right\">$category->coursecount</td>";
echo "<td nowrap=\"nowrap\">"; /// Print little icons
echo "<a title=\"$str->delete\" href=\"index.php?delete=$category->id&amp;sesskey=$USER->sesskey\"><img".
" src=\"$CFG->pixpath/t/delete.gif\" height=\"11\" width=\"11\" border=\"0\" alt=\"\" /></a> ";
if (!empty($category->visible)) {
echo "<a title=\"$str->hide\" href=\"index.php?hide=$category->id&amp;sesskey=$USER->sesskey\"><img".
" src=\"$CFG->pixpath/t/hide.gif\" height=\"11\" width=\"11\" border=\"0\" alt=\"\" /></a> ";
} else {
echo "<a title=\"$str->show\" href=\"index.php?show=$category->id&amp;sesskey=$USER->sesskey\"><img".
" src=\"$CFG->pixpath/t/show.gif\" height=\"11\" width=\"11\" border=\"0\"alt=\"\" /></a> ";
}
if ($up) {
echo "<a title=\"$str->moveup\" href=\"index.php?moveup=$category->id&amp;sesskey=$USER->sesskey\"><img".
" src=\"$CFG->pixpath/t/up.gif\" height=\"11\" width=\"11\" border=\"0\" alt=\"\" /></a> ";
}
if ($down) {
echo "<a title=\"$str->movedown\" href=\"index.php?movedown=$category->id&amp;sesskey=$USER->sesskey\"><img".
" src=\"$CFG->pixpath/t/down.gif\" height=\"11\" width=\"11\" border=\"0\"alt=\"\" /></a> ";
}
echo "</td>";
echo "<td align=\"left\" width=\"0\">";
$tempdisplaylist = $displaylist;
unset($tempdisplaylist[$category->id]);
foreach ($parentslist as $key => $parents) {
if (in_array($category->id, $parents)) {
unset($tempdisplaylist[$key]);
}
}
popup_form ("index.php?move=$category->id&amp;sesskey=$USER->sesskey&amp;moveto=", $tempdisplaylist, "moveform$category->id", "$category->parent", "", "", "", false);
echo "</td>";
echo "</tr>";
} else {
$category->id = "0";
}
if ($categories = get_categories($category->id)) { // Print all the children recursively
$countcats = count($categories);
$count = 0;
$first = true;
$last = false;
foreach ($categories as $cat) {
$count++;
if ($count == $countcats) {
$last = true;
}
$up = $first ? false : true;
$down = $last ? false : true;
$first = false;
print_category_edit($cat, $displaylist, $parentslist, $depth+1, $up, $down);
}
}
}
?>