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<?PHP // $Id$
// Moves, adds, updates or deletes modules in a course
require("../config.php");
require("lib.php");
if (isset($cancel)) {
if ($SESSION->returnpage) {
$return = $SESSION->returnpage;
unset($SESSION->returnpage);
save_session("SESSION");
redirect($return);
} else {
redirect("view.php?id=$mod->course");
}
}
if (isset($course) && isset($HTTP_POST_VARS)) { // add or update form submitted
if (isset($SESSION->modform)) { // Variables are stored in the session
$mod = $SESSION->modform;
unset($SESSION->modform);
save_session("SESSION");
} else {
$mod = (object)$HTTP_POST_VARS;
}
require_login($mod->course);
if (!isteacher($mod->course)) {
error("You can't modify this course!");
}
$modlib = "../mod/$mod->modulename/lib.php";
if (file_exists($modlib)) {
include($modlib);
} else {
error("This module is missing important code! ($modlib)");
}
$addinstancefunction = $mod->modulename."_add_instance";
$updateinstancefunction = $mod->modulename."_update_instance";
$deleteinstancefunction = $mod->modulename."_delete_instance";
switch ($mod->mode) {
case "update":
if (! $updateinstancefunction($mod)) {
error("Could not update the $mod->modulename");
}
add_to_log($mod->course, "course", "update mod", "../mod/$mod->modulename/view.php?id=$mod->coursemodule", "$mod->modulename $mod->instance");
break;
case "add":
if (! $mod->instance = $addinstancefunction($mod)) {
error("Could not add a new instance of $mod->modulename");
}
// course_modules and course_sections each contain a reference
// to each other, so we have to update one of them twice.
if (! $mod->coursemodule = add_course_module($mod) ) {
error("Could not add a new course module");
}
if (! $sectionid = add_mod_to_section($mod) ) {
error("Could not add the new course module to that section");
}
if (! set_field("course_modules", "section", $sectionid, "id", $mod->coursemodule)) {
error("Could not update the course module with the correct section");
}
add_to_log($mod->course, "course", "add mod", "../mod/$mod->modulename/view.php?id=$mod->coursemodule", "$mod->modulename $mod->instance");
break;
case "delete":
if (! $deleteinstancefunction($mod->instance)) {
notify("Could not delete the $mod->modulename (instance)");
}
if (! delete_course_module($mod->coursemodule)) {
notify("Could not delete the $mod->modulename (coursemodule)");
}
if (! delete_mod_from_section($mod->coursemodule, "$mod->section")) {
notify("Could not delete the $mod->modulename from that section");
}
add_to_log($mod->course, "course", "delete mod", "view.php?id=$mod->course", "$mod->modulename $mod->instance");
break;
default:
error("No mode defined");
}
$modinfo = serialize(get_array_of_activities($mod->course));
if (!set_field("course", "modinfo", $modinfo, "id", $mod->course)) {
error("Could not cache module information!");
}
if ($SESSION->returnpage) {
$return = $SESSION->returnpage;
unset($SESSION->returnpage);
save_session("SESSION");
redirect($return);
} else {
redirect("view.php?id=$mod->course");
}
exit;
}
if (isset($move)) {
require_variable($id);
move_module($id, $move);
redirect($HTTP_REFERER);
exit;
} else if (isset($delete)) { // value = course module
if (! $cm = get_record("course_modules", "id", $delete)) {
error("This course module doesn't exist");
}
if (! $course = get_record("course", "id", $cm->course)) {
error("This course doesn't exist");
}
require_login($course->id);
if (!isteacher($course->id)) {
error("You can't modify this course!");
}
if (! $module = get_record("modules", "id", $cm->module)) {
error("This module doesn't exist");
}
if (! $instance = get_record($module->name, "id", $cm->instance)) {
// Delete this module from the course right away
if (! delete_course_module($cm->id)) {
notify("Could not delete the $module->name (coursemodule)");
}
if (! delete_mod_from_section($cm->id, $cm->section)) {
notify("Could not delete the $module->name from that section");
}
error("The required instance of this module didn't exist. Module deleted.",
"$CFG->wwwroot/course/view.php?id=$course->id");
}
$fullmodulename = strtolower(get_string("modulename", $module->name));
$form->coursemodule = $cm->id;
$form->section = $cm->section;
$form->course = $cm->course;
$form->instance = $cm->instance;
$form->modulename = $module->name;
$form->fullmodulename = $fullmodulename;
$form->instancename = $instance->name;
include("mod_delete.html");
exit;
} else if (isset($update)) { // value = course module
if (! $cm = get_record("course_modules", "id", $update)) {
error("This course module doesn't exist");
}
if (! $course = get_record("course", "id", $cm->course)) {
error("This course doesn't exist");
}
if (! $module = get_record("modules", "id", $cm->module)) {
error("This module doesn't exist");
}
if (! $form = get_record($module->name, "id", $cm->instance)) {
error("The required instance of this module doesn't exist");
}
if (! $cw = get_record("course_sections", "id", $cm->section)) {
error("This course section doesn't exist");
}
if (isset($return)) {
$SESSION->returnpage = "$CFG->wwwroot/mod/$module->name/view.php?id=$cm->id";
save_session("SESSION");
}
$form->coursemodule = $cm->id;
$form->section = $cm->section; // The section ID
$form->course = $course->id;
$form->module = $module->id;
$form->modulename = $module->name;
$form->instance = $cm->instance;
$form->mode = "update";
$sectionname = get_string("name$course->format");
$fullmodulename = strtolower(get_string("modulename", $module->name));
if ($form->section) {
$heading->what = $fullmodulename;
$heading->in = "$sectionname $cw->section";
$pageheading = get_string("updatingain", "moodle", $heading);
} else {
$pageheading = get_string("updatinga", "moodle", $fullmodulename);
}
} else if (isset($add)) {
if (!$add) {
redirect($HTTP_REFERER);
die;
}
require_variable($id);
require_variable($section);
if (! $course = get_record("course", "id", $id)) {
error("This course doesn't exist");
}
if (! $module = get_record("modules", "name", $add)) {
error("This module type doesn't exist");
}
$form->section = $section; // The section number itself
$form->course = $course->id;
$form->module = $module->id;
$form->modulename = $module->name;
$form->instance = $cm->instance;
$form->mode = "add";
$sectionname = get_string("name$course->format");
$fullmodulename = strtolower(get_string("modulename", $module->name));
if ($form->section) {
$heading->what = $fullmodulename;
$heading->to = "$sectionname $form->section";
$pageheading = get_string("addinganewto", "moodle", $heading);
} else {
$pageheading = get_string("addinganew", "moodle", $fullmodulename);
}
} else {
error("No action was specfied");
}
require_login($course->id);
if (!isteacher($course->id)) {
error("You can't modify this course!");
}
$streditinga = get_string("editinga", "moodle", $fullmodulename);
$strmodulenameplural = get_string("modulenameplural", $module->name);
if ($course->category) {
print_header("$course->shortname: $streditinga", "$course->fullname",
"<A HREF=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</A> ->
<A HREF=\"$CFG->wwwroot/mod/$module->name/index.php?id=$course->id\">$strmodulenameplural</A> ->
$streditinga", "form.name", "", false);
} else {
print_header("$course->shortname: $streditinga", "$course->fullname",
"$streditinga", "form.name", "", false);
}
unset($SESSION->modform); // Clear any old ones that may be hanging around.
save_session("SESSION");
$modform = "../mod/$module->name/mod.html";
if (file_exists($modform)) {
print_heading($pageheading);
print_simple_box_start("center", "", "$THEME->cellheading");
include($modform);
print_simple_box_end();
} else {
notice("This module cannot be added to this course yet!", "$CFG->wwwroot/course/view.php?id=$course->id");
}
print_footer($course);
?>
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