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|
<?PHP //$Id: restorelib.php,v 1.12 2006/04/11 16:23:02 stronk7 Exp $
//This php script contains all the stuff to backup/restore
//wiki mods
//This is the "graphical" structure of the wiki mod:
//
// wiki
// (CL,pk->id)
//
// wiki_entries
// (pk->id, fk->wikiid)
//
// wiki_pages
// (pk->pagename,version,wiki, fk->wiki)
//
// 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)
//
//-----------------------------------------------------------
function wiki_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 wiki record structure
$wiki->course = $restore->course_id;
$wiki->name = backup_todb($info['MOD']['#']['NAME']['0']['#']);
$wiki->summary = backup_todb($info['MOD']['#']['SUMMARY']['0']['#']);
$wiki->pagename = backup_todb($info['MOD']['#']['PAGENAME']['0']['#']);
$wiki->wtype = backup_todb($info['MOD']['#']['WTYPE']['0']['#']);
$wiki->ewikiprinttitle = backup_todb($info['MOD']['#']['EWIKIPRINTTITLE']['0']['#']);
$wiki->htmlmode = backup_todb($info['MOD']['#']['HTMLMODE']['0']['#']);
$wiki->ewikiacceptbinary = backup_todb($info['MOD']['#']['EWIKIACCEPTBINARY']['0']['#']);
$wiki->disablecamelcase = backup_todb($info['MOD']['#']['DISABLECAMELCASE']['0']['#']);
$wiki->setpageflags = backup_todb($info['MOD']['#']['SETPAGEFLAGS']['0']['#']);
$wiki->strippages = backup_todb($info['MOD']['#']['STRIPPAGES']['0']['#']);
$wiki->removepages = backup_todb($info['MOD']['#']['REMOVEPAGES']['0']['#']);
$wiki->revertchanges = backup_todb($info['MOD']['#']['REVERTCHANGES']['0']['#']);
$wiki->initialcontent = backup_todb($info['MOD']['#']['INITIALCONTENT']['0']['#']);
$wiki->timemodified = backup_todb($info['MOD']['#']['TIMEMODIFIED']['0']['#']);
//The structure is equal to the db, so insert the wiki
$newid = insert_record ("wiki",$wiki);
//Do some output
if (!defined('RESTORE_SILENTLY')) {
echo "<li>".get_string("modulename","wiki")." \"".format_string(stripslashes($wiki->name),true)."\"</li>";
}
backup_flush(300);
if ($newid) {
//We have the newid, update backup_ids
backup_putid($restore->backup_unique_code,$mod->modtype,
$mod->id, $newid);
//Now check if want to restore user data and do it.
if (restore_userdata_selected($restore,'wiki',$mod->id)) {
//Restore wiki_entries
$status = wiki_entries_restore_mods($mod->id,$newid,$info,$restore);
}
} else {
$status = false;
}
} else {
$status = false;
}
return $status;
}
//This function restores the wiki_entries
function wiki_entries_restore_mods($old_wiki_id,$new_wiki_id,$info,$restore) {
global $CFG;
$status = true;
//Get the entries array
$entries = $info['MOD']['#']['ENTRIES']['0']['#']['ENTRY'];
//Iterate over entries
for($i = 0; $i < sizeof($entries); $i++) {
$ent_info = $entries[$i];
//traverse_xmlize($ent_info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//We'll need this later!!
$oldid = backup_todb($ent_info['#']['ID']['0']['#']);
//Now, build the wiki_ENTRIES record structure
$entry->wikiid = $new_wiki_id;
$entry->course = $restore->course_id;
$entry->userid = backup_todb($ent_info['#']['USERID']['0']['#']);
$entry->groupid = backup_todb($ent_info['#']['GROUPID']['0']['#']);
$entry->pagename = backup_todb($ent_info['#']['PAGENAME']['0']['#']);
$entry->timemodified = backup_todb($ent_info['#']['TIMEMODIFIED']['0']['#']);
//We have to recode the userid field
$user = backup_getid($restore->backup_unique_code,"user",$entry->userid);
if ($user) {
$entry->userid = $user->new_id;
}
//We have to recode the groupid field
$group = backup_getid($restore->backup_unique_code,"group",$entry->groupid);
if ($group) {
$entry->groupid = $group->new_id;
}
//The structure is equal to the db, so insert the wiki_entries
$newid = insert_record ("wiki_entries",$entry);
//Do some output
if (($i+1) % 50 == 0) {
if (!defined('RESTORE_SILENTLY')) {
echo ".";
if (($i+1) % 1000 == 0) {
echo "<br />";
}
}
backup_flush(300);
}
if ($newid) {
//We have the newid, update backup_ids
backup_putid($restore->backup_unique_code,"wiki_entries",$oldid,$newid);
//Restore wiki_pages
$status = wiki_pages_restore_mods($oldid,$newid,$ent_info,$restore);
//Now copy moddata associated files
$status = wiki_restore_files ($old_wiki_id, $new_wiki_id, $oldid, $newid, $restore);
} else {
$status = false;
}
}
return $status;
}
//This function restores the wiki_pages
function wiki_pages_restore_mods($old_entry_id,$new_entry_id,$info,$restore) {
global $CFG;
$status = true;
//Get the comments array
$pages = $info['#']['PAGES']['0']['#']['PAGE'];
//Iterate over pages
for($i = 0; $i < sizeof($pages); $i++) {
$pag_info = $pages[$i];
//traverse_xmlize($pag_info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//We'll need this later!!
$oldid = backup_todb($pag_info['#']['ID']['0']['#']);
//Now, build the wiki_page record structure
$page->wiki = $new_entry_id;
$page->pagename = backup_todb($pag_info['#']['PAGENAME']['0']['#']);
$page->version = backup_todb($pag_info['#']['VERSION']['0']['#']);
$page->flags = backup_todb($pag_info['#']['FLAGS']['0']['#']);
$page->content = backup_todb($pag_info['#']['CONTENT']['0']['#']);
$page->author = backup_todb($pag_info['#']['AUTHOR']['0']['#']);
$page->userid = backup_todb($pag_info['#']['USERID']['0']['#']);
$page->created = backup_todb($pag_info['#']['CREATED']['0']['#']);
$page->lastmodified = backup_todb($pag_info['#']['LASTMODIFIED']['0']['#']);
$page->refs = str_replace("$@LINEFEED@$","\n",backup_todb($pag_info['#']['REFS']['0']['#']));
$page->meta = backup_todb($pag_info['#']['META']['0']['#']);
$page->hits = backup_todb($pag_info['#']['HITS']['0']['#']);
//We have to recode the userid field
$user = backup_getid($restore->backup_unique_code,"user",$page->userid);
if ($user) {
$page->userid = $user->new_id;
}
//The structure is equal to the db, so insert the wiki_pages
$newid = insert_record ("wiki_pages",$page);
//Do some output
if (($i+1) % 50 == 0) {
if (!defined('RESTORE_SILENTLY')) {
echo ".";
if (($i+1) % 1000 == 0) {
echo "<br />";
}
}
backup_flush(300);
}
if ($newid) {
//We have the newid, update backup_ids
backup_putid($restore->backup_unique_code,"wiki_pages",$oldid,$newid);
} else {
$status = false;
}
}
return $status;
}
function wiki_restore_files ($oldwikiid, $newwikiid, $oldentryid, $newentryid, $restore) {
global $CFG;
$status = true;
$todo = false;
$moddata_path = "";
$forum_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);
//First, 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 wiki directory
if ($status) {
$wiki_path = $moddata_path."/wiki";
//Check it exists and create it
$status = check_dir_exists($wiki_path,true);
}
//Now locate the temp dir we are restoring from
if ($status) {
$temp_path = $CFG->dataroot."/temp/backup/".$restore->backup_unique_code.
"/moddata/wiki/".$oldwikiid."/".$oldentryid;
//Check it exists
if (is_dir($temp_path)) {
$todo = true;
}
}
//If todo, we create the neccesary dirs in course moddata/wiki
if ($status and $todo) {
//First this wiki id
$this_wiki_path = $wiki_path."/".$newwikiid;
$status = check_dir_exists($this_wiki_path,true);
//Now this entry id
$entry_wiki_path = $this_wiki_path."/".$newentryid;
//And now, copy temp_path to entry_wiki_path
$status = backup_copy_file($temp_path, $entry_wiki_path);
}
return $status;
}
//Return a content decoded to support interactivities linking. Every module
//should have its own. They are called automatically from
//wiki_decode_content_links_caller() function in each module
//in the restore process
function wiki_decode_content_links ($content,$restore) {
global $CFG;
$result = $content;
//Link to the list of wikis
$searchstring='/\$@(WIKIINDEX)\*([0-9]+)@\$/';
//We look for it
preg_match_all($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
$searchstring='/\$@(WIKIINDEX)\*('.$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,$CFG->wwwroot.'/mod/wiki/index.php?id='.$rec->new_id,$result);
} else {
//It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/wiki/index.php?id='.$old_id,$result);
}
}
}
//Link to wiki view by moduleid
$searchstring='/\$@(WIKIVIEWBYID)\*([0-9]+)@\$/';
//We look for it
preg_match_all($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
$searchstring='/\$@(WIKIVIEWBYID)\*('.$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,$CFG->wwwroot.'/mod/wiki/view.php?id='.$rec->new_id,$result);
} else {
//It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/wiki/view.php?id='.$old_id,$result);
}
}
}
return $result;
}
//This function makes all the necessary calls to xxxx_decode_content_links()
//function in each module, passing them the desired contents to be decoded
//from backup format to destination site/course in order to mantain inter-activities
//working in the backup/restore process. It's called from restore_decode_content_links()
//function in restore process
function wiki_decode_content_links_caller($restore) {
global $CFG;
$status = true;
//Process every wiki PAGE in the course
if ($pages = get_records_sql ("SELECT p.id, p.content
FROM {$CFG->prefix}wiki_pages p,
{$CFG->prefix}wiki w
WHERE w.course = $restore->course_id AND
p.wiki = w.id")) {
//Iterate over each post->message
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($pages as $page) {
//Increment counter
$i++;
$content = $page->definition;
$result = restore_decode_content_links_worker($content,$restore);
if ($result != $content) {
//Update record
$page->content = addslashes($result);
$status = update_record("wiki_pages",$page);
if ($CFG->debug>7) {
if (!defined('RESTORE_SILENTLY')) {
echo '<br /><hr />'.s($content).'<br />changed to<br />'.s($result).'<hr /><br />';
}
}
}
//Do some output
if (($i+1) % 5 == 0) {
if (!defined('RESTORE_SILENTLY')) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br />";
}
}
backup_flush(300);
}
}
}
//Process every wiki (summary) in the course
if ($wikis = get_records_sql ("SELECT w.id, w.summary
FROM {$CFG->prefix}wiki w
WHERE w.course = $restore->course_id")) {
//Iterate over each wiki->summary
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($wikis as $wiki) {
//Increment counter
$i++;
$content = $wiki->summary;
$result = restore_decode_content_links_worker($content,$restore);
if ($result != $content) {
//Update record
$wiki->summary = addslashes($result);
$status = update_record("wiki",$wiki);
if ($CFG->debug>7) {
if (!defined('RESTORE_SILENTLY')) {
echo '<br /><hr />'.s($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;
}
?>
|
