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<?php //$Id: restore_check.html,v 1.26.2.1 2006/06/03 20:00:10 stronk7 Exp $
//This page receive all the restore_form data. Then, if existing course
//has been selected, shows a list of courses to select one.
//It cheks that the parammeter from restore_form are coherent.
//It puts all the restore info in the session.
//Finally, it calls restore_execute to do the hard work
//Get objects from session
if ($SESSION) {
$info = $SESSION->info;
$course_header = $SESSION->course_header;
if (isset($SESSION->restore)) {
$restore = $SESSION->restore;
}
}
//Detect if we are coming from the restore form
$fromform = optional_param ('fromform', 0, PARAM_INT);
//If restore session info exists, but we are coming from the form
//it has prioriry
if (isset($restore) and !empty($fromform)) {
unset($restore);
}
// check for session objects
if (empty($info) or empty($course_header)) {
error( 'important information missing from SESSION' );
}
//If the restore object doesn't exist, we are going
//to check every variable individually and create it
if (!isset($restore)) {
//Check that we have all we need
//backup_unique_code
$backup_unique_code = required_param( 'backup_unique_code' );
//file
$file = required_param( 'file');
//Checks for the required restoremod parameters
if ($allmods = get_records("modules")) {
foreach ($allmods as $mod) {
$modname = $mod->name;
$var = "restore_".$modname;
$$var = optional_param( $var,0);
$var = "restore_user_info_".$modname;
$$var = optional_param( $var,0);
$instances = !empty($info->mods[$mod->name]->instances) ? $info->mods[$mod->name]->instances : NULL;
if ($instances === NULL) {
continue;
}
foreach ($instances as $instance) {
$var = 'restore_'.$modname.'_instance_'.$instance->id;
$$var = optional_param($var,0);
$var = 'restore_user_info_'.$modname.'_instance_'.$instance->id;
$$var = optional_param($var,0);
}
}
}
//restoreto
$restore_restoreto = required_param('restore_restoreto');
//restore_metacourse
$restore_metacourse = required_param('restore_metacourse');
//restore_users
$restore_users = required_param('restore_users');
//restore_logs
$restore_logs = required_param('restore_logs');
//restore_user_files
$restore_user_files = required_param('restore_user_files');
//restore_course_files
$restore_course_files = required_param('restore_course_files');
//restore_messages
$restore_messages = required_param('restore_messages');
//Check we've selected a course to restore to
$course_id = optional_param('course_id', 0, PARAM_INT);
//We are here, having all we need !!
//Create the restore object and put it in the session
$restore->backup_unique_code = $backup_unique_code;
$restore->file = $file;
if ($allmods = get_records("modules")) {
foreach ($allmods as $mod) {
$modname = $mod->name;
$var = "restore_".$modname;
$restore->mods[$modname]->restore=$$var;
$var = "restore_user_info_".$modname;
$restore->mods[$modname]->userinfo=$$var;
$instances = !empty($info->mods[$mod->name]->instances) ? $info->mods[$mod->name]->instances : NULL;
if ($instances === NULL) {
continue;
}
foreach ($instances as $instance) {
$var = 'restore_'.$modname.'_instance_'.$instance->id;
$restore->mods[$modname]->instances[$instance->id]->restore = $$var;
$var = 'restore_user_info_'.$modname.'_instance_'.$instance->id;
$restore->mods[$modname]->instances[$instance->id]->userinfo = $$var;
}
}
}
$restore->restoreto=$restore_restoreto;
$restore->metacourse=$restore_metacourse;
$restore->users=$restore_users;
$restore->logs=$restore_logs;
$restore->user_files=$restore_user_files;
$restore->course_files=$restore_course_files;
$restore->messages=$restore_messages;
$restore->course_id=$course_id;
} else {
//We have the object, so check if we have a new course_id
//passed as parammeter
$course_id = optional_param('course_id', 0, PARAM_INT);
if ($course_id) {
$restore->course_id=$course_id;
}
}
//We have the object with data, put it in the session
$SESSION->restore = $restore;
//From here to the end of the script, only use the $restore object
//Check login
require_login();
//Check admin
if (!empty($id)) {
if (!isteacheredit($id)) {
error("You need to be a teacher or admin user to use this page.", "$CFG->wwwroot/login/index.php");
}
} else {
if (!isadmin()) {
error("You need to be an admin user to use this page.", "$CFG->wwwroot/login/index.php");
}
}
//Check site
if (!$site = get_site()) {
error("Site not found!");
}
//Depending the selected restoreto:
// If user is a teacher (and not creator):
// 0-Current course, deleting: Put $restore->course_id and $restore->deleting (true), create the restore object
// 1-Current course, adding: Put $restore->course_id and $restore->deleting (false), create the restore object
// If the uses is a creator:
// 0-Existing course, deleting: Select the destination course and launch the check again, then
// put $restore->course_id and $restore->deleting (true), create the restore object.
// 1-Existing course, adding: Select the destination course and launch the check again, then
// put $restore->course_id and $restore->deleting (false), create the restore object.
// 2-New course: Create the restore object and launch the execute.
//If the user is a teacher and not a creator
if (isteacheredit($id) and !iscreator()) {
$restore->course_id = $id;
if ($restore->restoreto == 0) {
$restore->deleting = true;
} else {
$restore->deleting = false;
}
}
//If the user is a creator (or admin)
if (iscreator()) {
//Set restore->deleting as needed
if ($restore->restoreto == 0) {
$restore->deleting = true;
} else {
$restore->deleting = false;
}
}
//Now, select the course if needed
if (($restore->restoreto == 0 or $restore->restoreto == 1) and ($restore->course_id == 0) and (iscreator())) {
if ($courses = get_courses("all","c.fullname","c.id,c.fullname,c.shortname,c.visible")) {
print_heading(get_string("choosecourse"));
print_simple_box_start("center");
foreach ($courses as $course) {
if (!isteacheredit($course->id)) {
continue;
}
if (empty($course->visible)) {
$optdimmed = ' class="dimmed" ';
} else {
$optdimmed = '';
}
echo "<a $optdimmed href=\"restore.php?course_id=$course->id&launch=check&id=$id&file=$file\">$course->fullname ($course->shortname)</a><br />";
}
print_simple_box_end();
} else {
print_heading(get_string("nocoursesyet"));
print_continue("$CFG->wwwroot/$CFG->admin/index.php");
}
//Checks everything and execute restore
} else if ((($restore->restoreto == 0 or $restore->restoreto == 1) and ($restore->course_id != 0)) or ($restore->restoreto == 2)) {
//Final access control check
if ($restore->course_id == 0 and !iscreator()) {
error("You need to be a creator or admin to restore into new course!");
} else if ($restore->course_id != 0 and !isteacheredit($restore->course_id)) {
error("You need to be an edit teacher or admin to restore into selected course!");
}
$show_continue_button = true;
//Check if we've selected any mod's user info and restore->users
//is set to none. Change it to course and inform.
if ($restore->users == 2) {
$changed = false;
$mods = $restore->mods;
foreach ($mods as $mod) {
if ($mod->userinfo) {
$changed = true;
}
}
//If we have selected user files or messages, then users must be restored too
if ($restore->user_files || $restore->messages) {
$changed = 1;
}
if ($changed) {
echo get_string ("noteuserschangednonetocourse");
echo "<hr noshade size=\"1\">";
$restore->users = 1;
}
}
//Save the restore session object
$SESSION->restore = $restore;
if ($show_continue_button) {
//Print the continue button to execute the restore NOW !!!!
//All is prepared !!!
echo "<center>";
$hidden["launch"] = "execute";
$hidden["file"] = $file;
$hidden["id"] = $id;
print_single_button("restore.php", $hidden, get_string("restorecoursenow"),"post");
echo "</center>";
} else {
//Show error
error ("Something was wrong checking restore preferences");
}
//If we are here. Something must be wrong. Debug !!!
} else {
print_object($restore);
print_object($info);
print_object($course_header);
error ("Something must be wrong");
}
?>
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