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<?PHP //$Id: restorelib.php,v 1.6 2004/02/15 21:18:52 stronk7 Exp $
//This php script contains all the stuff to backup/restore
//assignment mods
//This is the "graphical" structure of the assignment mod:
//
// assignment
// (CL,pk->id)
// |
// |
// |
// assignment_submisions
// (UL,pk->id, fk->assignment,files)
//
// Meaning: pk->primary key field of the table
// fk->foreign key to link with parent
// nt->nested field (recursive data)
// CL->course level info
// UL->user level info
// files->table may have files)
//
//-----------------------------------------------------------
//This function executes all the restore procedure about this mod
function assignment_restore_mods($mod,$restore) {
global $CFG;
$status = true;
//Get record from backup_ids
$data = backup_getid($restore->backup_unique_code,$mod->modtype,$mod->id);
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 ASSIGNMENT record structure
$assignment->course = $restore->course_id;
$assignment->name = backup_todb($info['MOD']['#']['NAME']['0']['#']);
$assignment->description = backup_todb($info['MOD']['#']['DESCRIPTION']['0']['#']);
$assignment->format = backup_todb($info['MOD']['#']['FORMAT']['0']['#']);
$assignment->resubmit = backup_todb($info['MOD']['#']['RESUBMIT']['0']['#']);
$assignment->type = backup_todb($info['MOD']['#']['TYPE']['0']['#']);
$assignment->maxbytes = backup_todb($info['MOD']['#']['MAXBYTES']['0']['#']);
$assignment->timedue = backup_todb($info['MOD']['#']['TIMEDUE']['0']['#']);
$assignment->grade = backup_todb($info['MOD']['#']['GRADE']['0']['#']);
$assignment->timemodified = backup_todb($info['MOD']['#']['TIMEMODIFIED']['0']['#']);
//We have to recode the grade field if it is <0 (scale)
if ($assignment->grade < 0) {
$scale = backup_getid($restore->backup_unique_code,"scale",abs($assignment->grade));
if ($scale) {
$assignment->grade = -($scale->new_id);
}
}
//The structure is equal to the db, so insert the assignment
$newid = insert_record ("assignment",$assignment);
//Do some output
echo "<ul><li>".get_string("modulename","assignment")." \"".$assignment->name."\"<br>";
backup_flush(300);
if ($newid) {
//We have the newid, update backup_ids
backup_putid($restore->backup_unique_code,$mod->modtype,
$mod->id, $newid);
//Now check if want to restore user data and do it.
if ($restore->mods['assignment']->userinfo) {
//Restore assignmet_submissions
$status = assignment_submissions_restore_mods ($mod->id, $newid,$info,$restore);
}
} else {
$status = false;
}
//Finalize ul
echo "</ul>";
} else {
$status = false;
}
return $status;
}
//This function restores the assignment_submissions
function assignment_submissions_restore_mods($old_assignment_id, $new_assignment_id,$info,$restore) {
global $CFG;
$status = true;
//Get the submissions array
$submissions = $info['MOD']['#']['SUBMISSIONS']['0']['#']['SUBMISSION'];
//Iterate over submissions
for($i = 0; $i < sizeof($submissions); $i++) {
$sub_info = $submissions[$i];
//traverse_xmlize($sub_info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//We'll need this later!!
$oldid = backup_todb($sub_info['#']['ID']['0']['#']);
$olduserid = backup_todb($sub_info['#']['USERID']['0']['#']);
//Now, build the ASSIGNMENT_SUBMISSIONS record structure
$submission->assignment = $new_assignment_id;
$submission->userid = backup_todb($sub_info['#']['USERID']['0']['#']);
$submission->timecreated = backup_todb($sub_info['#']['TIMECREATED']['0']['#']);
$submission->timemodified = backup_todb($sub_info['#']['TIMEMODIFIED']['0']['#']);
$submission->numfiles = backup_todb($sub_info['#']['NUMFILES']['0']['#']);
$submission->grade = backup_todb($sub_info['#']['GRADE']['0']['#']);
$submission->comment = backup_todb($sub_info['#']['COMMENT']['0']['#']);
$submission->teacher = backup_todb($sub_info['#']['TEACHER']['0']['#']);
$submission->timemarked = backup_todb($sub_info['#']['TIMEMARKED']['0']['#']);
$submission->mailed = backup_todb($sub_info['#']['MAILED']['0']['#']);
//We have to recode the userid field
$user = backup_getid($restore->backup_unique_code,"user",$submission->userid);
if ($user) {
$submission->userid = $user->new_id;
}
//We have to recode the teacher field
$user = backup_getid($restore->backup_unique_code,"user",$submission->teacher);
if ($user) {
$submission->teacher = $user->new_id;
}
//The structure is equal to the db, so insert the assignment_submission
$newid = insert_record ("assignment_submissions",$submission);
//Do some output
if (($i+1) % 50 == 0) {
echo ".";
if (($i+1) % 1000 == 0) {
echo "<br>";
}
backup_flush(300);
}
if ($newid) {
//We have the newid, update backup_ids
backup_putid($restore->backup_unique_code,"assignment_submission",$oldid,
$newid);
//Now copy moddata associated files
$status = assignment_restore_files ($old_assignment_id, $new_assignment_id,
$olduserid, $submission->userid, $restore);
} else {
$status = false;
}
}
return $status;
}
//This function copies the assignment related info from backup temp dir to course moddata folder,
//creating it if needed and recoding everything (assignment id and user id)
function assignment_restore_files ($oldassid, $newassid, $olduserid, $newuserid, $restore) {
global $CFG;
$status = true;
$todo = false;
$moddata_path = "";
$assignment_path = "";
$temp_path = "";
//First, we check to "course_id" exists and create is as necessary
//in CFG->dataroot
$dest_dir = $CFG->dataroot."/".$restore->course_id;
$status = check_dir_exists($dest_dir,true);
//Now, locate course's moddata directory
$moddata_path = $CFG->dataroot."/".$restore->course_id."/".$CFG->moddata;
//Check it exists and create it
$status = check_dir_exists($moddata_path,true);
//Now, locate assignment directory
if ($status) {
$assignment_path = $moddata_path."/assignment";
//Check it exists and create it
$status = check_dir_exists($assignment_path,true);
}
//Now locate the temp dir we are gong to restore
if ($status) {
$temp_path = $CFG->dataroot."/temp/backup/".$restore->backup_unique_code.
"/moddata/assignment/".$oldassid."/".$olduserid;
//Check it exists
if (is_dir($temp_path)) {
$todo = true;
}
}
//If todo, we create the neccesary dirs in course moddata/assignment
if ($status and $todo) {
//First this assignment id
$this_assignment_path = $assignment_path."/".$newassid;
$status = check_dir_exists($this_assignment_path,true);
//Now this user id
$user_assignment_path = $this_assignment_path."/".$newuserid;
//And now, copy temp_path to user_assignment_path
$status = backup_copy_file($temp_path, $user_assignment_path);
}
return $status;
}
//This function returns a log record with all the necessay transformations
//done. It's used by restore_log_module() to restore modules log.
function assignment_restore_logs($restore,$log) {
$status = false;
//Depending of the action, we recode different things
switch ($log->action) {
case "add":
if ($log->cmid) {
//Get the new_id of the module (to recode the info field)
$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
if ($mod) {
$log->url = "view.php?id=".$log->cmid;
$log->info = $mod->new_id;
$status = true;
}
}
break;
case "update":
if ($log->cmid) {
//Get the new_id of the module (to recode the info field)
$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
if ($mod) {
$log->url = "view.php?id=".$log->cmid;
$log->info = $mod->new_id;
$status = true;
}
}
break;
case "view":
if ($log->cmid) {
//Get the new_id of the module (to recode the info field)
$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
if ($mod) {
$log->url = "view.php?id=".$log->cmid;
$log->info = $mod->new_id;
$status = true;
}
}
break;
case "view all":
$log->url = "index.php?id=".$log->course;
$status = true;
break;
case "upload":
if ($log->cmid) {
//Get the new_id of the module (to recode the info field)
$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
if ($mod) {
$log->url = "view.php?a=".$mod->new_id;
$log->info = $mod->new_id;
$status = true;
}
}
break;
case "view submission":
if ($log->cmid) {
//Get the new_id of the module (to recode the info field)
$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
if ($mod) {
$log->url = "submissions.php?id=".$mod->new_id;
$log->info = $mod->new_id;
$status = true;
}
}
break;
case "update grades":
if ($log->cmid) {
//Extract the assignment id from the url field
$assid = substr(strrchr($log->url,"="),1);
//Get the new_id of the module (to recode the info field)
$mod = backup_getid($restore->backup_unique_code,$log->module,$assid);
if ($mod) {
$log->url = "submissions.php?id=".$mod->new_id;
$status = true;
}
}
break;
default:
echo "action (".$log->module."-".$log->action.") unknow. Not restored<br>"; //Debug
break;
}
if ($status) {
$status = $log;
}
return $status;
}
?>
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