mirrored from git://git.moodle.org/moodle.git
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restorelib.php
2745 lines (2495 loc) · 130 KB
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restorelib.php
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<?PHP //$Id$
//Functions used in restore
//This function unzips a zip file in the same directory that it is
//It automatically uses pclzip or command line unzip
function restore_unzip ($file) {
global $CFG;
$status = true;
if (empty($CFG->unzip)) { // Use built-in php-based unzip function
include_once("$CFG->dirroot/lib/pclzip/pclzip.lib.php");
//include_once("$CFG->dirroot/lib/pclzip/pclerror.lib.php"); //Debug
//include_once("$CFG->dirroot/lib/pclzip/pcltrace.lib.php"); //Debug
//PclTraceOn(2); //Debug
$archive = new PclZip($file);
if (!$list = $archive->extract(dirname($file))) {
$status = false;
}
//PclTraceDisplay(); //Debug
//PclTraceOff(); //Debug
} else { // Use external unzip program
$command = "cd ".dirname($file)."; $CFG->unzip -o ".basename($file);
Exec($command);
}
return $status;
}
//This function checks if moodle.xml seems to be a valid xml file
//(exists, has an xml header and a course main tag
function restore_check_moodle_file ($file) {
$status = true;
//Check if it exists
if ($status = is_file($file)) {
//Open it and read the first 200 bytes (chars)
$handle = fopen ($file, "r");
$first_chars = fread($handle,200);
$status = fclose ($handle);
//Chek if it has the requires strings
if ($status) {
$status = strpos($first_chars,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
if ($status !== false) {
$status = strpos($first_chars,"<MOODLE_BACKUP>");
}
}
}
return $status;
}
//This function read the xml file and store it data from the info zone in an object
function restore_read_xml_info ($xml_file) {
//We call the main read_xml function, with todo = INFO
$info = restore_read_xml ($xml_file,"INFO",false);
return $info;
}
//This function read the xml file and store it data from the course header zone in an object
function restore_read_xml_course_header ($xml_file) {
//We call the main read_xml function, with todo = COURSE_HEADER
$info = restore_read_xml ($xml_file,"COURSE_HEADER",false);
return $info;
}
//This function read the xml file and store its data from the sections in a object
function restore_read_xml_sections ($xml_file) {
//We call the main read_xml function, with todo = SECTIONS
$info = restore_read_xml ($xml_file,"SECTIONS",false);
return $info;
}
//This function read the xml file and store its data from the users in
//backup_ids->info db (and user's id in $info)
function restore_read_xml_users ($restore,$xml_file) {
//We call the main read_xml function, with todo = USERS
$info = restore_read_xml ($xml_file,"USERS",$restore);
return $info;
}
//This function read the xml file and store its data from the questions in
//backup_ids->info db (and category's id in $info)
function restore_read_xml_questions ($restore,$xml_file) {
//We call the main read_xml function, with todo = QUESTIONS
$info = restore_read_xml ($xml_file,"QUESTIONS",$restore);
return $info;
}
//This function read the xml file and store its data from the scales in
//backup_ids->info db (and scale's id in $info)
function restore_read_xml_scales ($restore,$xml_file) {
//We call the main read_xml function, with todo = SCALES
$info = restore_read_xml ($xml_file,"SCALES",$restore);
return $info;
}
//This function read the xml file and store its data from the groups in
//backup_ids->info db (and group's id in $info)
function restore_read_xml_groups ($restore,$xml_file) {
//We call the main read_xml function, with todo = GROUPS
$info = restore_read_xml ($xml_file,"GROUPS",$restore);
return $info;
}
//This function read the xml file and store its data from the events (course) in
//backup_ids->info db (and event's id in $info)
function restore_read_xml_events ($restore,$xml_file) {
//We call the main read_xml function, with todo = EVENTS
$info = restore_read_xml ($xml_file,"EVENTS",$restore);
return $info;
}
//This function read the xml file and store its data from the modules in
//backup_ids->info
function restore_read_xml_modules ($restore,$xml_file) {
//We call the main read_xml function, with todo = MODULES
$info = restore_read_xml ($xml_file,"MODULES",$restore);
return $info;
}
//This function read the xml file and store its data from the logs in
//backup_ids->info
function restore_read_xml_logs ($restore,$xml_file) {
//We call the main read_xml function, with todo = LOGS
$info = restore_read_xml ($xml_file,"LOGS",$restore);
return $info;
}
//This function prints the contents from the info parammeter passed
function restore_print_info ($info) {
$status = true;
if ($info) {
//This is tha align to every ingo table
$table->align = array ("RIGHT","LEFT");
//This is the nowrap clause
$table->wrap = array ("","NOWRAP");
//The width
$table->width = "70%";
//Put interesting info in table
//The backup original name
$tab[0][0] = "<b>".get_string("backuporiginalname").":</b>";
$tab[0][1] = $info->backup_name;
//The moodle version
$tab[1][0] = "<b>".get_string("moodleversion").":</b>";
$tab[1][1] = $info->backup_moodle_release." (".$info->backup_moodle_version.")";
//The backup version
$tab[2][0] = "<b>".get_string("backupversion").":</b>";
$tab[2][1] = $info->backup_backup_release." (".$info->backup_backup_version.")";
//The backup date
$tab[3][0] = "<b>".get_string("backupdate").":</b>";
$tab[3][1] = userdate($info->backup_date);
//Print title
print_heading(get_string("backup").":");
$table->data = $tab;
//Print backup general info
print_table($table);
//Now backup contents in another table
$tab = array();
//First mods info
$mods = $info->mods;
$elem = 0;
foreach ($mods as $key => $mod) {
$tab[$elem][0] = "<b>".get_string("modulenameplural",$key).":</b>";
if ($mod->backup == "false") {
$tab[$elem][1] = get_string("notincluded");
} else {
if ($mod->userinfo == "true") {
$tab[$elem][1] = get_string("included")." ".get_string("withuserdata");
} else {
$tab[$elem][1] = get_string("included")." ".get_string("withoutuserdata");
}
}
$elem++;
}
//Users info
$tab[$elem][0] = "<b>".get_string("users").":</b>";
$tab[$elem][1] = get_string($info->backup_users);
$elem++;
//Logs info
$tab[$elem][0] = "<b>".get_string("logs").":</b>";
if ($info->backup_logs == "true") {
$tab[$elem][1] = get_string("yes");
} else {
$tab[$elem][1] = get_string("no");
}
$elem++;
//User Files info
$tab[$elem][0] = "<b>".get_string("userfiles").":</b>";
if ($info->backup_user_files == "true") {
$tab[$elem][1] = get_string("yes");
} else {
$tab[$elem][1] = get_string("no");
}
$elem++;
//Course Files info
$tab[$elem][0] = "<b>".get_string("coursefiles").":</b>";
if ($info->backup_course_files == "true") {
$tab[$elem][1] = get_string("yes");
} else {
$tab[$elem][1] = get_string("no");
}
$elem++;
$table->data = $tab;
//Print title
print_heading(get_string("backupdetails").":");
//Print backup general info
print_table($table);
} else {
$status = false;
}
return $status;
}
//This function prints the contents from the course_header parammeter passed
function restore_print_course_header ($course_header) {
$status = true;
if ($course_header) {
//This is tha align to every ingo table
$table->align = array ("RIGHT","LEFT");
//The width
$table->width = "70%";
//Put interesting course header in table
//The course name
$tab[0][0] = "<b>".get_string("name").":</b>";
$tab[0][1] = $course_header->course_fullname." (".$course_header->course_shortname.")";
//The course summary
$tab[1][0] = "<b>".get_string("summary").":</b>";
$tab[1][1] = $course_header->course_summary;
$table->data = $tab;
//Print title
print_heading(get_string("course").":");
//Print backup course header info
print_table($table);
} else {
$status = false;
}
return $status;
}
//This function create a new course record.
//When finished, course_header contains the id of the new course
function restore_create_new_course($restore,&$course_header) {
global $CFG;
$status = true;
$fullname = $course_header->course_fullname;
$shortname = $course_header->course_shortname;
$currentfullname = "";
$currentshortname = "";
$counter = 0;
//Iteratere while the name exists
do {
if ($counter) {
$suffixfull = " ".get_string("copy")." ".$counter;
$suffixshort = "_".$counter;
} else {
$suffixfull = "";
$suffixshort = "";
}
$currentfullname = $fullname.$suffixfull;
$currentshortname = $shortname.$suffixshort;
$course = get_record("course","fullname",addslashes($currentfullname));
$counter++;
} while ($course);
//New name = currentname
$course_header->course_fullname = $currentfullname;
$course_header->course_shortname = $currentshortname;
//Now calculate the category
$category = get_record("course_categories","id",$course_header->category->id,
"name",addslashes($course_header->category->name));
//If no exists, try by name only
if (!$category) {
$category = get_record("course_categories","name",addslashes($course_header->category->name));
}
//If no exists, get category id 1
if (!$category) {
$category = get_record("course_categories","id","1");
}
//If category 1 doesn'exists, lets create the course category (get it from backup file)
if (!$category) {
$ins_category->name = addslashes($course_header->category->name);
$ins_category->parent = 0;
$ins_category->sortorder = 0;
$ins_category->coursecount = 0;
$ins_category->visible = 0; //To avoid interferences with the rest of the site
$ins_category->timemodified = time();
$newid = insert_record("course_categories",$ins_category);
$category->id = $newid;
$category->name = $course_header->category->name;
}
//If exists, put new category id
if ($category) {
$course_header->category->id = $category->id;
$course_header->category->name = $category->name;
//Error, cannot locate category
} else {
$course_header->category->id = 0;
$course_header->category->name = get_string("unknowncategory");
$status = false;
}
//Create the course_object
if ($status) {
$course->category = addslashes($course_header->category->id);
$course->password = addslashes($course_header->course_password);
$course->fullname = addslashes($course_header->course_fullname);
$course->shortname = addslashes($course_header->course_shortname);
$course->summary = addslashes($course_header->course_summary);
$course->format = addslashes($course_header->course_format);
$course->showgrades = addslashes($course_header->course_showgrades);
$course->newsitems = addslashes($course_header->course_newsitems);
$course->teacher = addslashes($course_header->course_teacher);
$course->teachers = addslashes($course_header->course_teachers);
$course->student = addslashes($course_header->course_student);
$course->students = addslashes($course_header->course_students);
$course->guest = addslashes($course_header->course_guest);
$course->startdate = addslashes($course_header->course_startdate);
$course->numsections = addslashes($course_header->course_numsections);
$course->showrecent = addslashes($course_header->course_showrecent);
$course->maxbytes = addslashes($course_header->course_maxbytes);
$course->showreports = addslashes($course_header->course_showreports);
$course->groupmode = addslashes($course_header->course_groupmode);
$course->groupmodeforce = addslashes($course_header->course_groupmodeforce);
$course->lang = addslashes($course_header->course_lang);
$course->marker = addslashes($course_header->course_marker);
$course->visible = addslashes($course_header->course_visible);
$course->timecreated = addslashes($course_header->course_timecreated);
$course->timemodified = addslashes($course_header->course_timemodified);
//Now insert the record
$newid = insert_record("course",$course);
if ($newid) {
//save old and new course id
backup_putid ($restore->backup_unique_code,"course",$course_header->course_id,$newid);
//Replace old course_id in course_header
$course_header->course_id = $newid;
} else {
$status = false;
}
}
return $status;
}
//This function creates all the course_sections and course_modules from xml
//when restoring in a new course or simply checks sections and create records
//in backup_ids when restoring in a existing course
function restore_create_sections($restore,$xml_file) {
global $CFG,$db;
$status = true;
//Check it exists
if (!file_exists($xml_file)) {
$status = false;
}
//Get info from xml
if ($status) {
$info = restore_read_xml_sections($xml_file);
}
//Put the info in the DB, recoding ids and saving the in backup tables
$sequence = "";
if ($info) {
//For each, section, save it to db
foreach ($info->sections as $key => $sect) {
$sequence = "";
$section->course = $restore->course_id;
$section->section = $sect->number;
$section->summary = addslashes($sect->summary);
$section->visible = $sect->visible;
$section->sequence = "";
//Now calculate the section's newid
$newid = 0;
if ($restore->restoreto == 2) {
//Save it to db (only if restoring to new course)
$newid = insert_record("course_sections",$section);
} else {
//Get section id when restoring in existing course
$rec = get_record("course_sections","course",$restore->course_id,
"section",$section->section);
//If that section doesn't exist, get section 0 (every mod will be
//asigned there
if(!$rec) {
$rec = get_record("course_sections","course",$restore->course_id,
"section","0");
}
//New check. If section 0 doesn't exist, insert it here !!
//Teorically this never should happen but, in practice, some users
//have reported this issue.
if(!$rec) {
$zero_sec->course = $restore->course_id;
$zero_sec->section = 0;
$zero_sec->summary = "";
$zero_sec->sequence = "";
$newid = insert_record("course_sections",$zero_sec);
$rec->id = $newid;
$rec->sequence = "";
}
$newid = $rec->id;
$sequence = $rec->sequence;
}
if ($newid) {
//save old and new section id
backup_putid ($restore->backup_unique_code,"course_sections",$key,$newid);
} else {
$status = false;
}
//If all is OK, go with associated mods
if ($status) {
//If we have mods in the section
if (!empty($sect->mods)) {
//For each mod inside section
foreach ($sect->mods as $keym => $mod) {
//Check if we've to restore this module
if ($restore->mods[$mod->type]->restore) {
//Get the module id from modules
$module = get_record("modules","name",$mod->type);
if ($module) {
$course_module->course = $restore->course_id;
$course_module->module = $module->id;
$course_module->section = $newid;
$course_module->added = $mod->added;
$course_module->deleted = $mod->deleted;
$course_module->score = $mod->score;
$course_module->indent = $mod->indent;
$course_module->visible = $mod->visible;
$course_module->groupmode = $mod->groupmode;
$course_module->instance = null;
//NOTE: The instance (new) is calculated and updated in db in the
// final step of the restore. We don't know it yet.
//print_object($course_module); //Debug
//Save it to db
$newidmod = insert_record("course_modules",$course_module);
if ($newidmod) {
//save old and new module id
//In the info field, we save the original instance of the module
//to use it later
backup_putid ($restore->backup_unique_code,"course_modules",
$keym,$newidmod,$mod->instance);
} else {
$status = false;
}
//Now, calculate the sequence field
if ($status) {
if ($sequence) {
$sequence .= ",".$newidmod;
} else {
$sequence = $newidmod;
}
}
} else {
$status = false;
}
}
}
}
}
//If all is OK, update sequence field in course_sections
if ($status) {
if (isset($sequence)) {
$update_rec->id = $newid;
$update_rec->sequence = $sequence;
$status = update_record("course_sections",$update_rec);
}
}
}
} else {
$status = false;
}
return $status;
}
//This function creates all the user, user_students, user_teachers
//user_course_creators and user_admins from xml
function restore_create_users($restore,$xml_file) {
global $CFG, $db;
$status = true;
//Check it exists
if (!file_exists($xml_file)) {
$status = false;
}
//Get info from xml
if ($status) {
//info will contain the old_id of every user
//in backup_ids->info will be the real info (serialized)
$info = restore_read_xml_users($restore,$xml_file);
}
//Now, get evey user_id from $info and user data from $backup_ids
//and create the necessary records (users, user_students, user_teachers
//user_course_creators and user_admins
if (!empty($info->users)) {
//For each user, take its info from backup_ids
foreach ($info->users as $userid) {
$rec = backup_getid($restore->backup_unique_code,"user",$userid);
$user = $rec->info;
//Check if it's admin and coursecreator
$is_admin = !empty($user->roles['admin']);
$is_coursecreator = !empty($user->roles['coursecreator']);
//Check if it's teacher and student
$is_teacher = !empty($user->roles['teacher']);
$is_student = !empty($user->roles['student']);
//Check if it's needed
$is_needed = !empty($user->roles['needed']);
//Calculate if it is a course user
//Has role teacher or student or needed
$is_course_user = ($is_teacher or $is_student or $is_needed);
//To store new ids created
$newid=null;
//check if it exists (by username) and get its id
$user_exists = true;
$user_data = get_record("user","username",addslashes($user->username));
if (!$user_data) {
$user_exists = false;
} else {
$newid = $user_data->id;
}
//Flags to see if we have to create the user, roles and preferences
$create_user = true;
$create_roles = true;
$create_preferences = true;
//If we are restoring course users and it isn't a course user
if ($restore->users == 1 and !$is_course_user) {
//If only restoring course_users and user isn't a course_user, inform to $backup_ids
$status = backup_putid($restore->backup_unique_code,"user",$userid,null,'notincourse');
$create_user = false;
$create_roles = false;
$create_preferences = false;
}
if ($user_exists and $create_user) {
//If user exists mark its newid in backup_ids (the same than old)
$status = backup_putid($restore->backup_unique_code,"user",$userid,$newid,'exists');
$create_user = false;
}
//Here, if create_user, do it
if ($create_user) {
//Unset the id because it's going to be inserted with a new one
unset ($user->id);
//We addslashes to necessary fields
$user->username = addslashes($user->username);
$user->firstname = addslashes($user->firstname);
$user->lastname = addslashes($user->lastname);
$user->email = addslashes($user->email);
$user->institution = addslashes($user->institution);
$user->department = addslashes($user->department);
$user->address = addslashes($user->address);
$user->city = addslashes($user->city);
$user->url = addslashes($user->url);
$user->description = addslashes($user->description);
//We are going to create the user
//The structure is exactly as we need
$newid = insert_record ("user",$user);
//Put the new id
$status = backup_putid($restore->backup_unique_code,"user",$userid,$newid,"new");
}
//Here, if create_roles, do it as necessary
if ($create_roles) {
//Get the newid and current info from backup_ids
$data = backup_getid($restore->backup_unique_code,"user",$userid);
$newid = $data->new_id;
$currinfo = $data->info.",";
//Now, depending of the role, create records in user_studentes and user_teacher
//and/or mark it in backup_ids
if ($is_admin) {
//If the record (user_admins) doesn't exists
if (!record_exists("user_admins","userid",$newid)) {
//Only put status in backup_ids
$currinfo = $currinfo."admin,";
$status = backup_putid($restore->backup_unique_code,"user",$userid,$newid,$currinfo);
}
}
if ($is_coursecreator) {
//If the record (user_coursecreators) doesn't exists
if (!record_exists("user_coursecreators","userid",$newid)) {
//Only put status in backup_ids
$currinfo = $currinfo."coursecreator,";
$status = backup_putid($restore->backup_unique_code,"user",$userid,$newid,$currinfo);
}
}
if ($is_needed) {
//Only put status in backup_ids
$currinfo = $currinfo."needed,";
$status = backup_putid($restore->backup_unique_code,"user",$userid,$newid,$currinfo);
}
if ($is_teacher) {
//If the record (teacher) doesn't exists
if (!record_exists("user_teachers","userid",$newid,"course", $restore->course_id)) {
//Put status in backup_ids
$currinfo = $currinfo."teacher,";
$status = backup_putid($restore->backup_unique_code,"user",$userid,$newid,$currinfo);
//Set course and user
$user->roles['teacher']->course = $restore->course_id;
$user->roles['teacher']->userid = $newid;
//Insert data in user_teachers
//The structure is exactly as we need
$status = insert_record("user_teachers",$user->roles['teacher']);
}
}
if ($is_student) {
//If the record (student) doesn't exists
if (!record_exists("user_students","userid",$newid,"course", $restore->course_id)) {
//Put status in backup_ids
$currinfo = $currinfo."student,";
$status = backup_putid($restore->backup_unique_code,"user",$userid,$newid,$currinfo);
//Set course and user
$user->roles['student']->course = $restore->course_id;
$user->roles['student']->userid = $newid;
//Insert data in user_students
//The structure is exactly as we need
$status = insert_record("user_students",$user->roles['student']);
}
}
if (!$is_course_user) {
//If the record (user) doesn't exists
if (!record_exists("user","id",$newid)) {
//Put status in backup_ids
$currinfo = $currinfo."user,";
$status = backup_putid($restore->backup_unique_code,"user",$userid,$newid,$currinfo);
}
}
}
//Here, if create_preferences, do it as necessary
if ($create_preferences) {
//echo "Checking for preferences of user ".$user->username."<br>"; //Debug
//Get user new id from backup_ids
$data = backup_getid($restore->backup_unique_code,"user",$userid);
$newid = $data->new_id;
if (isset($user->user_preferences)) {
//echo "Preferences exist in backup file<br>"; //Debug
foreach($user->user_preferences as $user_preference) {
//echo $user_preference->name." = ".$user_preference->value."<br>"; //Debug
//We check if that user_preference exists in DB
if (!record_exists("user_preferences","userid",$newid,"name",$user_preference->name)) {
//echo "Creating it<br>"; //Debug
//Prepare the record and insert it
$user_preference->userid = $newid;
$status = insert_record("user_preferences",$user_preference);
}
}
}
}
}
}
return $status;
}
//This function creates all the categories and questions
//from xml (STEP1 of quiz restore)
function restore_create_questions($restore,$xml_file) {
global $CFG, $db;
$status = true;
//Check it exists
if (!file_exists($xml_file)) {
$status = false;
}
//Get info from xml
if ($status) {
//info will contain the old_id of every category
//in backup_ids->info will be the real info (serialized)
$info = restore_read_xml_questions($restore,$xml_file);
}
//Now, if we have anything in info, we have to restore that
//categories/questions
if ($info) {
if ($info !== true) {
//Iterate over each category
foreach ($info as $category) {
$catrestore = "quiz_restore_question_categories";
if (function_exists($catrestore)) {
//print_object ($category); //Debug
$status = $catrestore($category,$restore);
} else {
//Something was wrong. Function should exist.
$status = false;
}
}
}
} else {
$status = false;
}
return $status;
}
//This function creates all the scales
function restore_create_scales($restore,$xml_file) {
global $CFG, $db;
$status = true;
//Check it exists
if (!file_exists($xml_file)) {
$status = false;
}
//Get info from xml
if ($status) {
//scales will contain the old_id of every scale
//in backup_ids->info will be the real info (serialized)
$scales = restore_read_xml_scales($restore,$xml_file);
}
//Now, if we have anything in scales, we have to restore that
//scales
if ($scales) {
if ($scales !== true) {
//Iterate over each scale
foreach ($scales as $scale) {
//Get record from backup_ids
$data = backup_getid($restore->backup_unique_code,"scale",$scale->id);
//Init variables
$create_scale = false;
if ($data) {
//Now get completed xmlized object
$info = $data->info;
//traverse_xmlize($info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//Now build the SCALE record structure
$sca->courseid = backup_todb($info['SCALE']['#']['COURSEID']['0']['#']);
$sca->userid = backup_todb($info['SCALE']['#']['USERID']['0']['#']);
$sca->name = backup_todb($info['SCALE']['#']['NAME']['0']['#']);
$sca->scale = backup_todb($info['SCALE']['#']['SCALETEXT']['0']['#']);
$sca->description = backup_todb($info['SCALE']['#']['DESCRIPTION']['0']['#']);
$sca->timemodified = backup_todb($info['SCALE']['#']['TIMEMODIFIED']['0']['#']);
//Now search if that scale exists (by scale field) in course 0 (Standar scale)
//or in restore->course_id course (Personal scale)
if ($sca->courseid == 0) {
$course_to_search = 0;
} else {
$course_to_search = $restore->course_id;
}
$sca_db = get_record("scale","scale",$sca->scale,"courseid",$course_to_search);
//If it doesn't exist, create
if (!$sca_db) {
$create_scale = true;
}
//If we must create the scale
if ($create_scale) {
//Me must recode the courseid if it's <> 0 (common scale)
if ($sca->courseid != 0) {
$sca->courseid = $restore->course_id;
}
//We must recode the userid
$user = backup_getid($restore->backup_unique_code,"user",$sca->userid);
if ($user) {
$sca->userid = $user->new_id;
} else {
//Assign it to admin
$sca->userid = 1;
}
//The structure is equal to the db, so insert the scale
$newid = insert_record ("scale",$sca);
} else {
//get current scale id
$newid = $sca_db->id;
}
if ($newid) {
//We have the newid, update backup_ids
backup_putid($restore->backup_unique_code,"scale",
$scale->id, $newid);
}
}
}
}
} else {
$status = false;
}
return $status;
}
//This function creates all the groups
function restore_create_groups($restore,$xml_file) {
global $CFG, $db;
$status = true;
$status2 = true;
//Check it exists
if (!file_exists($xml_file)) {
$status = false;
}
//Get info from xml
if ($status) {
//groups will contain the old_id of every group
//in backup_ids->info will be the real info (serialized)
$groups = restore_read_xml_groups($restore,$xml_file);
}
//Now, if we have anything in groups, we have to restore that
//groups
if ($groups) {
if ($groups !== true) {
//Iterate over each group
foreach ($groups as $group) {
//Get record from backup_ids
$data = backup_getid($restore->backup_unique_code,"group",$group->id);
//Init variables
$create_group = false;
if ($data) {
//Now get completed xmlized object
$info = $data->info;
//traverse_xmlize($info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//Now build the GROUP record structure
$gro->courseid = backup_todb($info['GROUP']['#']['COURSEID']['0']['#']);
$gro->name = backup_todb($info['GROUP']['#']['NAME']['0']['#']);
$gro->description = backup_todb($info['GROUP']['#']['DESCRIPTION']['0']['#']);
$gro->lang = backup_todb($info['GROUP']['#']['LANG']['0']['#']);
$gro->picture = backup_todb($info['GROUP']['#']['PICTURE']['0']['#']);
$gro->hidepicture = backup_todb($info['GROUP']['#']['HIDEPICTURE']['0']['#']);
$gro->timecreated = backup_todb($info['GROUP']['#']['TIMECREATED']['0']['#']);
$gro->timemodified = backup_todb($info['GROUP']['#']['TIMEMODIFIED']['0']['#']);
//Now search if that group exists (by name and description field) in
//restore->course_id course
$gro_db = get_record("groups","courseid",$restore->course_id,"name",$gro->name,"description",$gro->description);
//If it doesn't exist, create
if (!$gro_db) {
$create_group = true;
}
//If we must create the group
if ($create_group) {
//Me must recode the courseid to the restore->course_id
$gro->courseid = $restore->course_id;
//The structure is equal to the db, so insert the group
$newid = insert_record ("groups",$gro);
} else {
//get current group id
$newid = $gro_db->id;
}
if ($newid) {
//We have the newid, update backup_ids
backup_putid($restore->backup_unique_code,"group",
$group->id, $newid);
}
//Now restore members in the groups_members
$status2 = restore_create_groups_members($newid,$info,$restore);
}
}
}
} else {
$status = false;
}
return ($status && $status2);
}
//This function restores the groups_members
function restore_create_groups_members($group_id,$info,$restore) {
global $CFG;
$status = true;
//Get the members array
$members = $info['GROUP']['#']['MEMBERS']['0']['#']['MEMBER'];
//Iterate over members
for($i = 0; $i < sizeof($members); $i++) {
$mem_info = $members[$i];
//traverse_xmlize($mem_info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//Now, build the GROUPS_MEMBERS record structure
$group_member->groupid = $group_id;
$group_member->userid = backup_todb($mem_info['#']['USERID']['0']['#']);
$group_member->timeadded = backup_todb($mem_info['#']['TIMEADDED']['0']['#']);
//We have to recode the userid field
$user = backup_getid($restore->backup_unique_code,"user",$group_member->userid);
if ($user) {
$group_member->userid = $user->new_id;
}
//The structure is equal to the db, so insert the groups_members
$newid = insert_record ("groups_members",$group_member);
//Do some output
if (($i+1) % 50 == 0) {
echo ".";
if (($i+1) % 1000 == 0) {
echo "<br>";
}
backup_flush(300);
}
if (!$newid) {
$status = false;
}
}
return $status;
}
//This function creates all the course events
function restore_create_events($restore,$xml_file) {
global $CFG, $db;
$status = true;
//Check it exists
if (!file_exists($xml_file)) {
$status = false;
}
//Get info from xml
if ($status) {
//events will contain the old_id of every event
//in backup_ids->info will be the real info (serialized)
$events = restore_read_xml_events($restore,$xml_file);
}
//Now, if we have anything in events, we have to restore that
//events
if ($events) {
if ($events !== true) {
//Iterate over each event
foreach ($events as $event) {
//Get record from backup_ids
$data = backup_getid($restore->backup_unique_code,"event",$event->id);
//Init variables
$create_event = false;
if ($data) {
//Now get completed xmlized object
$info = $data->info;
//traverse_xmlize($info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//Now build the EVENT record structure
$eve->name = backup_todb($info['EVENT']['#']['NAME']['0']['#']);
$eve->description = backup_todb($info['EVENT']['#']['DESCRIPTION']['0']['#']);
$eve->courseid = $restore->course_id;
$eve->groupid = backup_todb($info['EVENT']['#']['GROUPID']['0']['#']);
$eve->userid = backup_todb($info['EVENT']['#']['USERID']['0']['#']);
$eve->modulename = "";
$eve->instance = 0;
$eve->eventtype = backup_todb($info['EVENT']['#']['EVENTTYPE']['0']['#']);
$eve->timestart = backup_todb($info['EVENT']['#']['TIMESTART']['0']['#']);
$eve->timeduration = backup_todb($info['EVENT']['#']['TIMEDURATION']['0']['#']);
$eve->timemodified = backup_todb($info['EVENT']['#']['TIMEMODIFIED']['0']['#']);
//Now search if that event exists (by description and timestart field) in
//restore->course_id course
$eve_db = get_record("event","courseid",$restore->course_id,"description",$eve->description,"timestart",$eve->timestart);
//If it doesn't exist, create
if (!$eve_db) {
$create_event = true;
}
//If we must create the event