mirrored from git://git.moodle.org/moodle.git
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restorelib.php
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restorelib.php
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<?php // $Id
//This php script contains all the stuff to backup/restore data mod
//This is the "graphical" structure of the data mod:
//
// data
// (CL,pk->id)
// |
// |
// |
// ---------------------------------------------------------------------------------
// | |
//data_records (UL,pk->id, fk->data) data_fields (pk->id, fk->data)
// | |
// | |
// ----------------------------------------------------------------------------- |
// | | | |
//data_ratings(fk->recordid, pk->id) data_comments (fk->recordid, pk->id) | |
// data_content(pk->id, fk->recordid, fk->fieldid)
//
//
//
// 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)
//
//-----------------------------------------------------------
//Backup data files because we've selected to backup user info
//and files are user info's level
$fieldids = array(); //array in the format of $fieldids[$oldid]=$newid. This is needed because of double dependencies of multiple tables.
//Return a content encoded to support interactivities linking. Every module
function data_restore_mods($mod,$restore) {
global $CFG;
$status = true;
$data = backup_getid($restore->backup_unique_code,$mod->modtype,$mod->id);
if ($data) {
//Now get completed xmlized object
$info = $data->info;
// if necessary, write to restorelog and adjust date/time fields
if ($restore->course_startdateoffset) {
restore_log_date_changes('Database', $restore, $info['MOD']['#'], array('TIMEAVAILABLEFROM', 'TIMEAVAILABLETO','TIMEVIEWFROM', 'TIMEVIEWTO'));
}
//traverse_xmlize($info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
$database->course = $restore->course_id;
$database->name = backup_todb($info['MOD']['#']['NAME']['0']['#']);
$database->intro = backup_todb($info['MOD']['#']['INTRO']['0']['#']);
// Only relevant for restoring backups from 1.6 in a 1.7 install.
if (isset($info['MOD']['#']['RATINGS']['0']['#'])) {
$database->ratings = backup_todb($info['MOD']['#']['RATINGS']['0']['#']);
}
$database->comments = backup_todb($info['MOD']['#']['COMMENTS']['0']['#']);
$database->timeavailablefrom = backup_todb($info['MOD']['#']['TIMEAVAILABLEFROM']['0']['#']);
$database->timeavailableto = backup_todb($info['MOD']['#']['TIMEAVAILABLETO']['0']['#']);
$database->timeviewfrom = backup_todb($info['MOD']['#']['TIMEVIEWFROM']['0']['#']);
$database->timeviewto = backup_todb($info['MOD']['#']['TIMEVIEWTO']['0']['#']);
// Only relevant for restoring backups from 1.6 in a 1.7 install.
if (isset($info['MOD']['#']['PARTICIPANTS']['0']['#'])) {
$database->participants = backup_todb($info['MOD']['#']['PARTICIPANTS']['0']['#']);
}
$database->requiredentries = backup_todb($info['MOD']['#']['REQUIREDENTRIES']['0']['#']);
$database->requiredentriestoview = backup_todb($info['MOD']['#']['REQUIREDENTRIESTOVIEW']['0']['#']);
$database->maxentries = backup_todb($info['MOD']['#']['MAXENTRIES']['0']['#']);
$database->rssarticles = backup_todb($info['MOD']['#']['RSSARTICLES']['0']['#']);
$database->singletemplate = backup_todb($info['MOD']['#']['SINGLETEMPLATE']['0']['#']);
$database->listtemplate = backup_todb($info['MOD']['#']['LISTTEMPLATE']['0']['#']);
$database->listtemplateheader = backup_todb($info['MOD']['#']['LISTTEMPLATEHEADER']['0']['#']);
$database->listtemplatefooter = backup_todb($info['MOD']['#']['LISTTEMPLATEFOOTER']['0']['#']);
$database->addtemplate = backup_todb($info['MOD']['#']['ADDTEMPLATE']['0']['#']);
$database->rsstemplate = backup_todb($info['MOD']['#']['RSSTEMPLATE']['0']['#']);
$database->rsstitletemplate = backup_todb($info['MOD']['#']['RSSTITLETEMPLATE']['0']['#']);
$database->csstemplate = backup_todb($info['MOD']['#']['CSSTEMPLATE']['0']['#']);
$database->jstemplate = backup_todb($info['MOD']['#']['JSTEMPLATE']['0']['#']);
$database->approval = backup_todb($info['MOD']['#']['APPROVAL']['0']['#']);
$database->scale = backup_todb($info['MOD']['#']['SCALE']['0']['#']);
$database->assessed = backup_todb($info['MOD']['#']['ASSESSED']['0']['#']);
// Only relevant for restoring backups from 1.6 in a 1.7 install.
if (isset($info['MOD']['#']['ASSESSPUBLIC']['0']['#'])) {
$database->assesspublic = backup_todb($info['MOD']['#']['ASSESSPUBLIC']['0']['#']);
}
$database->defaultsort = backup_todb($info['MOD']['#']['DEFAULTSORT']['0']['#']);
$database->defaultsortdir = backup_todb($info['MOD']['#']['DEFAULTSORTDIR']['0']['#']);
$database->editany = backup_todb($info['MOD']['#']['EDITANY']['0']['#']);
$database->notification = backup_todb($info['MOD']['#']['NOTIFICATION']['0']['#']);
// We have to recode the scale field if it's <0 (positive is a grade, not a scale)
if ($database->scale < 0) {
$scale = backup_getid($restore->backup_unique_code, 'scale', abs($database->scale));
if ($scale) {
$database->scale = -($scale->new_id);
}
}
$newid = insert_record ('data', $database);
//Do some output
if (!defined('RESTORE_SILENTLY')) {
echo "<li>".get_string("modulename","data")." \"".format_string(stripslashes($database->name),true)."\"</li>";
}
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 (function_exists('restore_userdata_selected')) {
// Moodle 1.6
$restore_userdata_selected = restore_userdata_selected($restore, 'data', $mod->id);
} else {
// Moodle 1.5
$restore_userdata_selected = $restore->mods['data']->userinfo;
}
global $fieldids;
//Restore data_fields first!!! need to hold an array of [oldid]=>newid due to double dependencies
$status = $status and data_fields_restore_mods ($mod->id, $newid, $info, $restore);
// now use the new field in the defaultsort
$newdefaultsort = empty($fieldids[$database->defaultsort]) ? 0 : $fieldids[$database->defaultsort];
set_field('data', 'defaultsort', $newdefaultsort, 'id', $newid);
if ($restore_userdata_selected) {
$status = $status and data_records_restore_mods ($mod->id, $newid, $info, $restore);
}
// If the backup contained $data->participants, $data->assesspublic
// and $data->groupmode, we need to convert the data to use Roles.
// It means the backup was made pre Moodle 1.7. We check the
// backup_version to make sure.
if (isset($database->participants) && isset($database->assesspublic)) {
if (!$teacherroles = get_roles_with_capability('moodle/legacy:teacher', CAP_ALLOW)) {
notice('Default teacher role was not found. Roles and permissions '.
'for your database modules will have to be manually set.');
}
if (!$studentroles = get_roles_with_capability('moodle/legacy:student', CAP_ALLOW)) {
notice('Default student role was not found. Roles and permissions '.
'for all your database modules will have to be manually set.');
}
if (!$guestroles = get_roles_with_capability('moodle/legacy:guest', CAP_ALLOW)) {
notice('Default guest role was not found. Roles and permissions '.
'for all your database modules will have to be manually set.');
}
require_once($CFG->dirroot.'/mod/data/lib.php');
data_convert_to_roles($database, $teacherroles, $studentroles,
$restore->mods['data']->instances[$mod->id]->restored_as_course_module);
}
} else {
$status = false;
}
} else {
$status = false;
}
return $status;
}
function data_fields_restore_mods ($old_data_id, $new_data_id, $info, $restore) {
global $CFG, $fieldids;
$fields = $info['MOD']['#']['FIELDS']['0']['#']['FIELD'];
for ($i = 0; $i < sizeof($fields); $i++) {
$fie_info = $fields[$i];
$oldid = backup_todb($fie_info['#']['ID']['0']['#']);
$field -> dataid = $new_data_id;
$field -> type = backup_todb($fie_info['#']['TYPE']['0']['#']);
$field -> name = backup_todb($fie_info['#']['NAME']['0']['#']);
$field -> description = backup_todb($fie_info['#']['DESCRIPTION']['0']['#']);
$field -> param1 = backup_todb($fie_info['#']['PARAM1']['0']['#']);
$field -> param2 = backup_todb($fie_info['#']['PARAM2']['0']['#']);
$field -> param3 = backup_todb($fie_info['#']['PARAM3']['0']['#']);
$field -> param4 = backup_todb($fie_info['#']['PARAM4']['0']['#']);
$field -> param5 = backup_todb($fie_info['#']['PARAM5']['0']['#']);
$field -> param6 = backup_todb($fie_info['#']['PARAM6']['0']['#']);
$field -> param7 = backup_todb($fie_info['#']['PARAM7']['0']['#']);
$field -> param8 = backup_todb($fie_info['#']['PARAM8']['0']['#']);
$field -> param9 = backup_todb($fie_info['#']['PARAM9']['0']['#']);
$field -> param10 = backup_todb($fie_info['#']['PARAM10']['0']['#']);
$newid = insert_record ("data_fields",$field);
$fieldids[$oldid] = $newid; //so we can use them in sub tables that depends on both fieldid and recordid
//Do some output
if (($i+1) % 50 == 0) {
if (!defined('RESTORE_SILENTLY')) {
echo ".";
if (($i+1) % 1000 == 0) {
echo "<br />";
}
}
backup_flush(300);
}
if ($newid) {
//We have the newid, update backup_ids
$status = backup_putid($restore->backup_unique_code,"data_fields",$oldid, $newid);
} else {
$status = false;
}
}
return $status;
}
function data_records_restore_mods ($old_data_id, $new_data_id, $info, $restore) {
global $CFG, $fieldids;
$status = true;
$records = $info['MOD']['#']['RECORDS']['0']['#']['RECORD'];
for ($i = 0; $i < sizeof($records); $i++) {
$rec_info = $records[$i];
$oldid = backup_todb($rec_info['#']['ID']['0']['#']);
$record = new object();
$record -> dataid = $new_data_id;
$record -> userid = backup_todb($rec_info['#']['USERID']['0']['#']);
$record -> groupid = backup_todb($rec_info['#']['GROUPID']['0']['#']);
$record -> timecreated = backup_todb($rec_info['#']['TIMECREATED']['0']['#']);
$record -> timemodified = backup_todb($rec_info['#']['TIMEMODIFIED']['0']['#']);
$record -> approved = backup_todb($rec_info['#']['APPROVED']['0']['#']);
$user = backup_getid($restore->backup_unique_code,"user",$record->userid);
$group= restore_group_getid($restore, $record->groupid);
if ($user) {
$record->userid = $user->new_id;
}
if ($group) {
$record->groupid= $group->new_id;
}
$newid = insert_record ("data_records",$record);
//Do some output
if (($i+1) % 50 == 0) {
if (!defined('RESTORE_SILENTLY')) {
echo ".";
if (($i+1) % 1000 == 0) {
echo "<br />";
}
}
backup_flush(300);
}
if ($newid) {
//We have the newid, update backup_ids
$status = $status and backup_putid($restore->backup_unique_code,"data_records",$oldid, $newid);
$status = $status and data_content_restore_mods ($oldid, $newid, $old_data_id, $new_data_id, $rec_info, $restore);
$status = $status and data_ratings_restore_mods ($oldid, $newid, $info, $rec_info);
$status = $status and data_comments_restore_mods ($oldid, $newid, $info, $rec_info);
} else {
$status = false;
}
}
return $status;
}
function data_content_restore_mods ($old_record_id, $new_record_id, $old_data_id, $new_data_id, $recinfo, $restore) {
global $CFG, $fieldids;
$status = true;
$contents = $recinfo['#']['CONTENTS']['0']['#']['CONTENT'];
for ($i = 0; $i < sizeof($contents); $i++) {
$con_info = $contents[$i];
$oldid = backup_todb($con_info['#']['ID']['0']['#']);
$oldfieldid = backup_todb($con_info['#']['FIELDID']['0']['#']);
$oldrecordid = backup_todb($con_info['#']['RECORDID']['0']['#']);
$content -> recordid = $new_record_id;
$content -> fieldid = $fieldids[$oldfieldid];
$content -> content = backup_todb($con_info['#']['CONTENT']['0']['#']);
$content -> content1 = backup_todb($con_info['#']['CONTENT1']['0']['#']);
$content -> content2 = backup_todb($con_info['#']['CONTENT2']['0']['#']);
$content -> content3 = backup_todb($con_info['#']['CONTENT3']['0']['#']);
$content -> content4 = backup_todb($con_info['#']['CONTENT4']['0']['#']);
$newid = insert_record ("data_content",$content);
//Do some output
if (($i+1) % 50 == 0) {
if (!defined('RESTORE_SILENTLY')) {
echo ".";
if (($i+1) % 1000 == 0) {
echo "<br />";
}
}
backup_flush(300);
}
if ($newid) {
//We have the newid, update backup_ids
$status = $status and data_restore_files ($old_data_id, $new_data_id, $oldfieldid, $content->fieldid, $oldrecordid, $content->recordid, $recinfo, $restore);
$status = $status and backup_putid($restore->backup_unique_code,"data_content",$oldid, $newid);
} else {
$status = false;
}
}
return $status;
}
function data_restore_files ($old_data_id, $new_data_id, $old_field_id, $new_field_id, $old_record_id, $new_record_id, $recinfo, $restore) {
global $CFG, $db;
$status = true;
$todo = false;
$moddata_path = "";
$data_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 data directory
if ($status) {
$data_path = $moddata_path."/data";
//Check it exists and create it
$status = check_dir_exists($data_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/data/".$old_data_id."/".$old_field_id."/".$old_record_id;
$todo = check_dir_exists($temp_path);
}
//If todo, we create the neccesary dirs in course moddata/data
if ($status and $todo) {
//First this data id
$this_data_path = $data_path."/".$new_data_id;
$status = check_dir_exists($this_data_path,true);
//Now this user id
$this_field_path = $this_data_path."/".$new_field_id;
$status = check_dir_exists($this_field_path,true);
$this_record_path = $this_field_path = $this_field_path."/".$new_record_id;
$status = check_dir_exists($this_record_path,true);
//And now, copy temp_path to user_data_path
$status = @backup_copy_file($temp_path, $this_record_path);
}
return $status;
}
function data_ratings_restore_mods ($oldid, $newid, $info, $rec_info) {
global $CFG;
$status = true;
$ratings= $rec_info['#']['RATINGS']['0']['#']['RATING'];
if (empty($ratings)) { // no ratings to restore
return true;
}
for ($i = 0; $i < sizeof($ratings); $i++) {
$rat_info = $ratings[$i];
$rating -> recordid = $newid;
$rating -> userid = backup_todb($rat_info['#']['USERID']['0']['#']);
$rating -> rating = backup_todb($rat_info['#']['RATING']['0']['#']);
if (! insert_record ("data_ratings",$rating)) {
$status = false;
}
}
return $status;
}
function data_comments_restore_mods ($oldid, $newid, $info, $rec_info) {
global $CFG;
$status = true;
$comments= $rec_info['#']['COMMENTS']['0']['#']['COMMENT'];
if (empty($comments)) { // no comments to restore
return true;
}
for ($i = 0; $i < sizeof($comments); $i++) {
$com_info = $comments[$i];
$comment -> recordid = $newid;
$comment -> userid = backup_todb($com_info['#']['USERID']['0']['#']);
$comment -> content = backup_todb($com_info['#']['CONTENT']['0']['#']);
$comment -> created = backup_todb($com_info['#']['CREATED']['0']['#']);
$comment -> modified = backup_todb($com_info['#']['MODIFIED']['0']['#']);
if (! insert_record ("data_comments",$comment)) {
$status = false;
}
}
return $status;
}
/**
* Returns a content decoded to support interactivities linking. Every module
* should have its own. They are called automatically from
* xxxx_decode_content_links_caller() function in each module
* in the restore process.
*
* @param string $content the content to be decoded
* @param object $restore the preferences used in restore
* @return string the decoded string
*/
function data_decode_content_links ($content,$restore) {
global $CFG;
$result = $content;
/// Link to the list of datas
$searchstring='/\$@(DATAINDEX)\*([0-9]+)@\$/';
/// We look for it
preg_match_all($searchstring,$content,$foundset);
/// If found, then we are going to look for its new id (in backup tables)
if ($foundset[0]) {
/// print_object($foundset); //Debug
/// Iterate over foundset[2]. They are the old_ids
foreach($foundset[2] as $old_id) {
/// We get the needed variables here (course id)
$rec = backup_getid($restore->backup_unique_code,"course",$old_id);
/// Personalize the searchstring
$searchstring='/\$@(DATAINDEX)\*('.$old_id.')@\$/';
/// If it is a link to this course, update the link to its new location
if($rec->new_id) {
/// Now replace it
$result= preg_replace($searchstring,$CFG->wwwroot.'/mod/data/index.php?id='.$rec->new_id,$result);
} else {
/// It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/data/index.php?id='.$old_id,$result);
}
}
}
/// Link to data view by moduleid
$searchstring='/\$@(DATAVIEWBYID)\*([0-9]+)@\$/';
/// We look for it
preg_match_all($searchstring,$result,$foundset);
/// If found, then we are going to look for its new id (in backup tables)
if ($foundset[0]) {
/// print_object($foundset); //Debug
/// Iterate over foundset[2]. They are the old_ids
foreach($foundset[2] as $old_id) {
/// We get the needed variables here (course_modules id)
$rec = backup_getid($restore->backup_unique_code,"course_modules",$old_id);
/// Personalize the searchstring
$searchstring='/\$@(DATAVIEWBYID)\*('.$old_id.')@\$/';
/// If it is a link to this course, update the link to its new location
if($rec->new_id) {
/// Now replace it
$result= preg_replace($searchstring,$CFG->wwwroot.'/mod/data/view.php?id='.$rec->new_id,$result);
} else {
/// It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/data/view.php?id='.$old_id,$result);
}
}
}
/// Link to data view by dataid
$searchstring='/\$@(DATAVIEWBYD)\*([0-9]+)@\$/';
/// We look for it
preg_match_all($searchstring,$result,$foundset);
/// If found, then we are going to look for its new id (in backup tables)
if ($foundset[0]) {
/// print_object($foundset); //Debug
/// Iterate over foundset[2]. They are the old_ids
foreach($foundset[2] as $old_id) {
/// We get the needed variables here (data id)
$rec = backup_getid($restore->backup_unique_code,"data",$old_id);
/// Personalize the searchstring
$searchstring='/\$@(DATAVIEWBYD)\*('.$old_id.')@\$/';
/// If it is a link to this course, update the link to its new location
if($rec->new_id) {
/// Now replace it
$result= preg_replace($searchstring,$CFG->wwwroot.'/mod/data/view.php?d='.$rec->new_id,$result);
} else {
/// It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/data/view.php?d='.$old_id,$result);
}
}
}
/// Link to data record (element)
$searchstring='/\$@(DATAVIEWRECORD)\*([0-9]+)\*([0-9]+)@\$/';
/// We look for it
preg_match_all($searchstring,$result,$foundset);
/// If found, then we are going to look for its new id (in backup tables)
if ($foundset[0]) {
/// print_object($foundset); //Debug
/// Iterate over foundset[2] and foundset[3]. They are the old_ids
foreach($foundset[2] as $key => $old_id) {
$old_id2 = $foundset[3][$key];
/// We get the needed variables here (data id and record id)
$rec = backup_getid($restore->backup_unique_code,"data",$old_id);
$rec2 = backup_getid($restore->backup_unique_code,"data_records",$old_id2);
/// Personalize the searchstring
$searchstring='/\$@(DATAVIEWRECORD)\*('.$old_id.')\*('.$old_id2.')@\$/';
/// If it is a link to this course, update the link to its new location
if($rec->new_id && $rec2->new_id) {
/// Now replace it
$result= preg_replace($searchstring,$CFG->wwwroot.'/mod/data/view.php?d='.$rec->new_id.'&rid='.$rec2->new_id,$result);
} else {
/// It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/data/view.php?d='.$old_id.'&rid='.$old_id2,$result);
}
}
}
return $result;
}
/**
* This function makes all the necessary calls to xxxx_decode_content_links()
* function in each module, passing them the desired contents to be decoded
* from backup format to destination site/course in order to mantain inter-activities
* working in the backup/restore process. It's called from restore_decode_content_links()
* function in restore process
*
* @param object $restore the preferences used in restore
* @return boolean status of the execution
*/
function data_decode_content_links_caller($restore) {
global $CFG;
$status = true;
/// Process every DATA (intro, all HTML templates) in the course
/// Supported fields for main table:
$supportedfields = array('intro','singletemplate','listtemplate',
'listtemplateheader','addtemplate','rsstemplate','rsstitletemplate');
if ($datas = get_records_sql ("SELECT d.id, ".implode(',',$supportedfields)."
FROM {$CFG->prefix}data d
WHERE d.course = $restore->course_id")) {
/// Iterate over each data
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($datas as $data) {
/// Increment counter
$i++;
/// Make a new copy of the data object with nothing in, to use if
/// changes are necessary (allows us to do update_record without
/// worrying about every single field being included and needing
/// slashes).
$newdata = new stdClass;
$newdata->id=$data->id;
/// Loop through handling each supported field
$changed = false;
foreach($supportedfields as $field) {
$result = restore_decode_content_links_worker($data->{$field},$restore);
if ($result != $data->{$field}) {
$newdata->{$field} = addslashes($result);
$changed = true;
if (debugging()) {
if (!defined('RESTORE_SILENTLY')) {
echo '<br /><hr />'.s($data->{$field}).'<br />changed to<br />'.s($result).'<hr /><br />';
}
}
}
}
/// Update record if any field changed
if($changed) {
$status = update_record("data",$newdata);
}
/// Do some output
if (($i+1) % 5 == 0) {
if (!defined('RESTORE_SILENTLY')) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br />";
}
}
backup_flush(300);
}
}
}
/// Process every COMMENT (content) in the course
if ($comments = get_records_sql ("SELECT dc.id, dc.content
FROM {$CFG->prefix}data d,
{$CFG->prefix}data_records dr,
{$CFG->prefix}data_comments dc
WHERE d.course = $restore->course_id
AND dr.dataid = d.id
AND dc.recordid = dr.id")) {
/// Iterate over each data_comments->content
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($comments as $comment) {
/// Increment counter
$i++;
$content = $comment->content;
$result = restore_decode_content_links_worker($content,$restore);
if ($result != $content) {
/// Update record
$comment->content = addslashes($result);
$status = update_record("data_comments",$comment);
if (debugging()) {
if (!defined('RESTORE_SILENTLY')) {
echo '<br /><hr />'.s($content).'<br />changed to<br />'.s($result).'<hr /><br />';
}
}
}
/// Do some output
if (($i+1) % 5 == 0) {
if (!defined('RESTORE_SILENTLY')) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br />";
}
}
backup_flush(300);
}
}
}
/// Process every CONTENT (content, content1, content2, content3, content4) in the course
if ($contents = get_records_sql ("SELECT dc.id, dc.content, dc.content1, dc.content2, dc.content3, dc.content4
FROM {$CFG->prefix}data d,
{$CFG->prefix}data_records dr,
{$CFG->prefix}data_content dc
WHERE d.course = $restore->course_id
AND dr.dataid = d.id
AND dc.recordid = dr.id")) {
/// Iterate over each data_content->content, content1, content2, content3 and content4
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($contents as $cnt) {
/// Increment counter
$i++;
$content = $cnt->content;
$content1 = $cnt->content1;
$content2 = $cnt->content2;
$content3 = $cnt->content3;
$content4 = $cnt->content4;
$result = restore_decode_content_links_worker($content,$restore);
$result1 = restore_decode_content_links_worker($content1,$restore);
$result2 = restore_decode_content_links_worker($content2,$restore);
$result3 = restore_decode_content_links_worker($content3,$restore);
$result4 = restore_decode_content_links_worker($content4,$restore);
if ($result != $content || $result1 != $content1 || $result2 != $content2 ||
$result3 != $content3 || $result4 != $content4) {
/// Unset fields to update only the necessary ones
unset($cnt->content);
unset($cnt->content1);
unset($cnt->content2);
unset($cnt->content3);
unset($cnt->content4);
/// Conditionally set the fields
if ($result != $content) {
$cnt->content = addslashes($result);
}
if ($result1 != $content1) {
$cnt->content1 = addslashes($result1);
}
if ($result2 != $content2) {
$cnt->content2 = addslashes($result2);
}
if ($result3 != $content3) {
$cnt->content3 = addslashes($result3);
}
if ($result4 != $content4) {
$cnt->content4 = addslashes($result4);
}
/// Update record with the changed fields
$status = update_record("data_content",$cnt);
if (debugging()) {
if (!defined('RESTORE_SILENTLY')) {
echo '<br /><hr />'.s($content).'<br />changed to<br />'.s($result).'<hr /><br />';
}
}
}
/// Do some output
if (($i+1) % 5 == 0) {
if (!defined('RESTORE_SILENTLY')) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br />";
}
}
backup_flush(300);
}
}
}
return $status;
}
?>