mirrored from git://git.moodle.org/moodle.git
/
mod.php
642 lines (492 loc) · 21.9 KB
/
mod.php
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<?php // $Id$
// Moves, adds, updates, duplicates or deletes modules in a course
require("../config.php");
require("lib.php");
require_login();
if (isset($SESSION->modform)) { // Variables are stored in the session
$mod = $SESSION->modform;
unset($SESSION->modform);
} else {
$mod = (object)$_POST;
}
if (isset($cancel)) {
if (!empty($SESSION->returnpage)) {
$return = $SESSION->returnpage;
unset($SESSION->returnpage);
redirect($return);
} else {
redirect("view.php?id=$mod->course");
}
}
if (isset($_POST["course"])) { // add or update form submitted
//It caller is correct, $SESSION->sesskey must exist and coincide
if (empty($SESSION->sesskey) or !confirm_sesskey($SESSION->sesskey)) {
error(get_string('confirmsesskeybad', 'error'));
}
//Unset this, check done
unset($SESSION->sesskey);
if (!$course = get_record("course", "id", $mod->course)) {
error("This course doesn't exist");
}
if (!isteacheredit($course->id)) {
error("You can't modify this course!");
}
$mod->modulename = clean_filename($mod->modulename); // For safety
$modlib = "$CFG->dirroot/mod/$mod->modulename/lib.php";
if (file_exists($modlib)) {
include_once($modlib);
} else {
error("This module is missing important code! ($modlib)");
}
$addinstancefunction = $mod->modulename."_add_instance";
$updateinstancefunction = $mod->modulename."_update_instance";
$deleteinstancefunction = $mod->modulename."_delete_instance";
$moderr = "$CFG->dirroot/mod/$mod->modulename/moderr.html";
switch ($mod->mode) {
case "update":
if (trim($mod->name) == '') {
unset($mod->name);
}
$return = $updateinstancefunction($mod);
if (!$return) {
if (file_exists($moderr)) {
$form = $mod;
include_once($moderr);
die;
}
error("Could not update the $mod->modulename", "view.php?id=$course->id");
}
if (is_string($return)) {
error($return, "view.php?id=$course->id");
}
if (isset($mod->redirect)) {
$SESSION->returnpage = $mod->redirecturl;
} else {
$SESSION->returnpage = "$CFG->wwwroot/mod/$mod->modulename/view.php?id=$mod->coursemodule";
}
add_to_log($course->id, "course", "update mod",
"../mod/$mod->modulename/view.php?id=$mod->coursemodule",
"$mod->modulename $mod->instance");
add_to_log($course->id, $mod->modulename, "update",
"view.php?id=$mod->coursemodule",
"$mod->instance", $mod->coursemodule);
break;
case "add":
if (trim($mod->name) == '') {
$mod->name = get_string("modulename", $mod->modulename);
}
$return = $addinstancefunction($mod);
if (!$return) {
if (file_exists($moderr)) {
$form = $mod;
include_once($moderr);
die;
}
error("Could not add a new instance of $mod->modulename", "view.php?id=$course->id");
}
if (is_string($return)) {
error($return, "view.php?id=$course->id");
}
$mod->groupmode = $course->groupmode; /// Default groupmode the same as course
$mod->instance = $return;
// 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");
}
//We get the section's visible field status
$visible = get_field("course_sections","visible","id",$sectionid);
if (! set_field("course_modules", "visible", $visible, "id", $mod->coursemodule)) {
error("Could not update the course module with the correct visibility");
}
if (! set_field("course_modules", "section", $sectionid, "id", $mod->coursemodule)) {
error("Could not update the course module with the correct section");
}
if (isset($mod->redirect)) {
$SESSION->returnpage = $mod->redirecturl;
} else {
$SESSION->returnpage = "$CFG->wwwroot/mod/$mod->modulename/view.php?id=$mod->coursemodule";
}
add_to_log($course->id, "course", "add mod",
"../mod/$mod->modulename/view.php?id=$mod->coursemodule",
"$mod->modulename $mod->instance");
add_to_log($course->id, $mod->modulename, "add",
"view.php?id=$mod->coursemodule",
"$mod->instance", $mod->coursemodule);
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 $mod->modulename from that section");
}
unset($SESSION->returnpage);
add_to_log($course->id, "course", "delete mod",
"view.php?id=$mod->course",
"$mod->modulename $mod->instance", $mod->coursemodule);
break;
default:
error("No mode defined");
}
rebuild_course_cache($course->id);
if (!empty($SESSION->returnpage)) {
$return = $SESSION->returnpage;
unset($SESSION->returnpage);
redirect($return);
} else {
redirect("view.php?id=$course->id");
}
exit;
}
if (isset($_GET['move']) and confirm_sesskey()) {
require_variable($id);
if (! $cm = get_record("course_modules", "id", $id)) {
error("This course module doesn't exist");
}
if (!isteacheredit($cm->course)) {
error("You can't modify this course!");
}
move_module($cm, $_GET['move']);
rebuild_course_cache($cm->course);
if (SITEID == $cm->course) {
redirect($CFG->wwwroot);
} else {
redirect("view.php?id=$cm->course");
}
exit;
} else if ((isset($_GET['movetosection']) or isset($_GET['moveto'])) and confirm_sesskey()) {
if (! $cm = get_record("course_modules", "id", $USER->activitycopy)) {
error("The copied course module doesn't exist!");
}
if (isset($_GET['movetosection'])) {
if (! $section = get_record("course_sections", "id", $_GET['movetosection'])) {
error("This section doesn't exist");
}
$beforecm = NULL;
} else { // normal moveto
if (! $beforecm = get_record("course_modules", "id", $_GET['moveto'])) {
error("The destination course module doesn't exist");
}
if (! $section = get_record("course_sections", "id", $beforecm->section)) {
error("This section doesn't exist");
}
}
if (!isteacheredit($section->course)) {
error("You can't modify this course!");
}
if (!ismoving($section->course)) {
error("You need to copy something first!");
}
moveto_module($cm, $section, $beforecm);
unset($USER->activitycopy);
unset($USER->activitycopycourse);
unset($USER->activitycopyname);
rebuild_course_cache($section->course);
if (SITEID == $section->course) {
redirect($CFG->wwwroot);
} else {
redirect("view.php?id=$section->course");
}
} else if (isset($_GET['indent']) and confirm_sesskey()) {
require_variable($id);
if (! $cm = get_record("course_modules", "id", $id)) {
error("This course module doesn't exist");
}
$cm->indent += $_GET['indent'];
if ($cm->indent < 0) {
$cm->indent = 0;
}
if (!set_field("course_modules", "indent", $cm->indent, "id", $cm->id)) {
error("Could not update the indent level on that course module");
}
if (SITEID == $cm->course) {
redirect($CFG->wwwroot);
} else {
redirect("view.php?id=$cm->course");
}
exit;
} else if (isset($_GET['hide']) and confirm_sesskey()) {
if (! $cm = get_record("course_modules", "id", $_GET['hide'])) {
error("This course module doesn't exist");
}
if (!isteacheredit($cm->course)) {
error("You can't modify this course!");
}
hide_course_module($cm->id);
rebuild_course_cache($cm->course);
if (SITEID == $cm->course) {
redirect($CFG->wwwroot);
} else {
redirect("view.php?id=$cm->course");
}
exit;
} else if (isset($_GET['show']) and confirm_sesskey()) {
if (! $cm = get_record("course_modules", "id", $_GET['show'])) {
error("This course module doesn't exist");
}
if (!isteacheredit($cm->course)) {
error("You can't modify this course!");
}
if (! $section = get_record("course_sections", "id", $cm->section)) {
error("This module doesn't exist");
}
if (! $module = get_record("modules", "id", $cm->module)) {
error("This module doesn't exist");
}
if ($module->visible and ($section->visible or (SITEID == $cm->course))) {
show_course_module($cm->id);
rebuild_course_cache($cm->course);
}
if (SITEID == $cm->course) {
redirect($CFG->wwwroot);
} else {
redirect("view.php?id=$cm->course");
}
exit;
} else if (isset($_GET['groupmode']) and confirm_sesskey()) {
if (! $cm = get_record("course_modules", "id", $_GET['id'])) {
error("This course module doesn't exist");
}
if (!isteacheredit($cm->course)) {
error("You can't modify this course!");
}
set_groupmode_for_module($cm->id, $_GET['groupmode']);
rebuild_course_cache($cm->course);
if (SITEID == $cm->course) {
redirect($CFG->wwwroot);
} else {
redirect("view.php?id=$cm->course");
}
exit;
} else if (isset($_GET['copy']) and confirm_sesskey()) { // value = course module
if (! $cm = get_record("course_modules", "id", $_GET['copy'])) {
error("This course module doesn't exist");
}
if (!isteacheredit($cm->course)) {
error("You can't modify this course!");
}
if (! $section = get_record("course_sections", "id", $cm->section)) {
error("This module doesn't exist");
}
if (! $module = get_record("modules", "id", $cm->module)) {
error("This module doesn't exist");
}
if (! $instance = get_record($module->name, "id", $cm->instance)) {
error("Could not find the instance of this module");
}
$USER->activitycopy = $copy;
$USER->activitycopycourse = $cm->course;
$USER->activitycopyname = $instance->name;
redirect("view.php?id=$cm->course");
} else if (isset($_GET['cancelcopy']) and confirm_sesskey()) { // value = course module
$courseid = $USER->activitycopycourse;
unset($USER->activitycopy);
unset($USER->activitycopycourse);
unset($USER->activitycopyname);
redirect("view.php?id=$courseid");
} else if (isset($_GET['delete']) and confirm_sesskey()) { // value = course module
if (! $cm = get_record("course_modules", "id", $_GET['delete'])) {
error("This course module doesn't exist");
}
if (! $course = get_record("course", "id", $cm->course)) {
error("This course doesn't exist");
}
if (!isteacheredit($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 = 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;
$SESSION->sesskey = !empty($USER->id) ? $USER->sesskey : '';
$strdeletecheck = get_string("deletecheck", "", "$form->fullmodulename");
$strdeletecheckfull = get_string("deletecheckfull", "", "$form->fullmodulename '$form->instancename'");
print_header_simple("$strdeletecheck", "$",
"$strdeletecheck");
print_simple_box_start("center", "60%", "#FFAAAA", 20, "noticebox");
print_heading($strdeletecheckfull);
include_once("mod_delete.html");
print_simple_box_end();
print_footer($course);
exit;
} else if (isset($_GET['update']) and confirm_sesskey()) { // value = course module
if (! $cm = get_record("course_modules", "id", $_GET['update'])) {
error("This course module doesn't exist");
}
if (! $course = get_record("course", "id", $cm->course)) {
error("This course doesn't exist");
}
if (!isteacheredit($course->id)) {
error("You can't modify this course!");
}
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";
}
$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";
$SESSION->sesskey = !empty($USER->id) ? $USER->sesskey : '';
$sectionname = get_string("name$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", $fullmodulename);
}
} else if (isset($_GET['duplicate']) and confirm_sesskey()) { // value = course module
if (! $cm = get_record("course_modules", "id", $_GET['duplicate'])) {
error("This course module doesn't exist");
}
if (! $course = get_record("course", "id", $cm->course)) {
error("This course doesn't exist");
}
if (!isteacheredit($course->id)) {
error("You can't modify this course!");
}
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";
}
$section = get_field('course_sections', 'section', 'id', $cm->section);
$form->coursemodule = $cm->id;
$form->section = $section; // The section ID
$form->course = $course->id;
$form->module = $module->id;
$form->modulename = $module->name;
$form->instance = $cm->instance;
$form->mode = "add";
$SESSION->sesskey = !empty($USER->id) ? $USER->sesskey : '';
$sectionname = get_string("name$course->format");
$fullmodulename = strtolower(get_string("modulename", $module->name));
if ($form->section) {
$heading->what = $fullmodulename;
$heading->in = "$sectionname $cw->section";
$pageheading = get_string("duplicatingain", "moodle", $heading);
} else {
$pageheading = get_string("duplicatinga", "moodle", $fullmodulename);
}
} else if (isset($_GET['add']) and confirm_sesskey()) {
if (empty($_GET['add'])) {
redirect($_SERVER["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", $_GET['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 = "";
$form->coursemodule = "";
$form->mode = "add";
$SESSION->sesskey = !empty($USER->id) ? $USER->sesskey : '';
if (isset($_GET['type'])) {
$form->type = $_GET['type'];
}
$sectionname = get_string("name$course->format");
$fullmodulename = 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", $fullmodulename);
}
} else {
error("No action was specfied");
}
if (!isteacheredit($course->id)) {
error("You can't modify this course!");
}
$streditinga = get_string("editinga", "moodle", $fullmodulename);
$strmodulenameplural = get_string("modulenameplural", $module->name);
if ($module->name == "label") {
$focuscursor = "";
} else {
$focuscursor = "form.name";
}
if ($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", $focuscursor, "", false);
} else {
print_header("$course->shortname: $streditinga", "$course->fullname",
"$streditinga", $focuscursor, "", false);
}
unset($SESSION->modform); // Clear any old ones that may be hanging around.
$modform = "../mod/$module->name/mod.html";
if (file_exists($modform)) {
if ($usehtmleditor = can_use_html_editor()) {
$defaultformat = FORMAT_HTML;
$editorfields = '';
} else {
$defaultformat = FORMAT_MOODLE;
}
$icon = "<img align=\"middle\" height=\"16\" width=\"16\" src=\"$CFG->modpixpath/$module->name/icon.gif\" alt=\"\" /> ";
print_heading_with_help($pageheading, "mods", $module->name, $icon);
print_simple_box_start("center", "", "$THEME->cellheading");
include_once($modform);
print_simple_box_end();
if ($usehtmleditor and empty($nohtmleditorneeded)) {
use_html_editor($editorfields);
}
} else {
notice("This module cannot be added to this course yet! (No file found at: $modform)", "$CFG->wwwroot/course/view.php?id=$course->id");
}
print_footer($course);
?>