/mod/wiki/backuplib.php
PHP | 243 lines | 149 code | 40 blank | 54 comment | 21 complexity | 0f61b76b18399be97151e19d9859ad3e MD5 | raw file
Possible License(s): LGPL-2.1, GPL-2.0, BSD-3-Clause
- <?PHP //$Id: backuplib.php,v 1.11 2009/04/20 20:14:15 skodak 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)
- //
- //-----------------------------------------------------------
- //This function executes all the backup procedure about this mod
- function wiki_backup_mods($bf,$preferences) {
- global $CFG, $DB;
- $status = true;
- ////Iterate over wiki table
- if ($wikis = $DB->get_records ("wiki","course", array($preferences->backup_course=>"id"))) {
- foreach ($wikis as $wiki) {
- if (backup_mod_selected($preferences,'wiki',$wiki->id)) {
- wiki_backup_one_mod($bf,$preferences,$wiki);
- }
- }
- }
-
- return $status;
- }
- function wiki_backup_one_mod($bf,$preferences,$wiki) {
- global $DB;
- $status = true;
- if (is_numeric($wiki)) {
- $wiki = $DB->get_record('wiki', array('id'=>$wiki));
- }
-
- //Start mod
- fwrite ($bf,start_tag("MOD",3,true));
- //Print assignment data
- fwrite ($bf,full_tag("ID",4,false,$wiki->id));
- fwrite ($bf,full_tag("MODTYPE",4,false,"wiki"));
- fwrite ($bf,full_tag("NAME",4,false,$wiki->name));
- fwrite ($bf,full_tag("SUMMARY",4,false,$wiki->intro));
- fwrite ($bf,full_tag("PAGENAME",4,false,$wiki->pagename));
- fwrite ($bf,full_tag("WTYPE",4,false,$wiki->wtype));
- fwrite ($bf,full_tag("EWIKIPRINTTITLE",4,false,$wiki->ewikiprinttitle));
- fwrite ($bf,full_tag("HTMLMODE",4,false,$wiki->htmlmode));
- fwrite ($bf,full_tag("EWIKIACCEPTBINARY",4,false,$wiki->ewikiacceptbinary));
- fwrite ($bf,full_tag("DISABLECAMELCASE",4,false,$wiki->disablecamelcase));
- fwrite ($bf,full_tag("SETPAGEFLAGS",4,false,$wiki->setpageflags));
- fwrite ($bf,full_tag("STRIPPAGES",4,false,$wiki->strippages));
- fwrite ($bf,full_tag("REMOVEPAGES",4,false,$wiki->removepages));
- fwrite ($bf,full_tag("REVERTCHANGES",4,false,$wiki->revertchanges));
- fwrite ($bf,full_tag("INITIALCONTENT",4,false,$wiki->initialcontent));
- fwrite ($bf,full_tag("TIMEMODIFIED",4,false,$wiki->timemodified));
-
- //backup entries and pages
- if (backup_userdata_selected($preferences,'wiki',$wiki->id)) {
- $status = backup_wiki_entries($bf,$preferences,$wiki->id, $preferences->mods["wiki"]->userinfo);
- $status = backup_wiki_files_instance($bf,$preferences,$wiki->id);
- }
-
- //End mod
- fwrite ($bf,end_tag("MOD",3,true));
-
- return $status;
- }
- function wiki_check_backup_mods_instances($instance,$backup_unique_code) {
- $info[$instance->id.'0'][0] = $instance->name;
- $info[$instance->id.'0'][1] = '';
- // wiki_check_backup_mods ignores userdata, so we do too.
- return $info;
- }
- ////Return an array of info (name,value)
- function wiki_check_backup_mods($course,$user_data=false,$backup_unique_code,$instances=null) {
- global $DB;
- if (!empty($instances) && is_array($instances) && count($instances)) {
- $info = array();
- foreach ($instances as $id => $instance) {
- $info += wiki_check_backup_mods_instances($instance,$backup_unique_code);
- }
- return $info;
- }
- //First the course data
- $info[0][0] = get_string("modulenameplural","wiki");
- $info[0][1] = $DB->count_records("wiki", array("course"=>$course));
- return $info;
- }
- //Backup wiki_entries contents (executed from wiki_backup_mods)
- function backup_wiki_entries ($bf,$preferences,$wiki, $userinfo) {
- global $CFG, $DB;
- $status = true;
- $wiki_entries = $DB->get_records("wiki_entries", array("wikiid"=>$wiki), "id");
- //If there are entries
- if ($wiki_entries) {
- //Write start tag
- $status =fwrite ($bf,start_tag("ENTRIES",4,true));
- //Iterate over each entry
- foreach ($wiki_entries as $wik_ent) {
- //Entry start
- $status =fwrite ($bf,start_tag("ENTRY",5,true));
- fwrite ($bf,full_tag("ID",6,false,$wik_ent->id));
- fwrite ($bf,full_tag("GROUPID",6,false,$wik_ent->groupid));
- fwrite ($bf,full_tag("USERID",6,false,$wik_ent->userid));
- fwrite ($bf,full_tag("PAGENAME",6,false,$wik_ent->pagename));
- fwrite ($bf,full_tag("TIMEMODIFIED",6,false,$wik_ent->timemodified));
- //Now save entry pages
- $status = backup_wiki_pages($bf,$preferences,$wik_ent->id);
- //Entry end
- $status =fwrite ($bf,end_tag("ENTRY",5,true));
- }
- //Write end tag
- $status =fwrite ($bf,end_tag("ENTRIES",4,true));
- }
- return $status;
- }
- //Write wiki_pages contents
- function backup_wiki_pages ($bf,$preferences,$entryid) {
- global $CFG, $DB;
- $status = true;
- $pages = $DB->get_records("wiki_pages", array("wiki"=>$entryid));
- if ($pages) {
- //Start tag
- $status =fwrite ($bf,start_tag("PAGES",6,true));
- //Iterate over each page
- foreach ($pages as $page) {
- $status =fwrite ($bf,start_tag("PAGE",7,true));
- fwrite ($bf,full_tag("ID",8,false,$page->id));
- fwrite ($bf,full_tag("PAGENAME",8,false,$page->pagename));
- fwrite ($bf,full_tag("VERSION",8,false,$page->version));
- fwrite ($bf,full_tag("FLAGS",8,false,$page->flags));
- fwrite ($bf,full_tag("CONTENT",8,false,$page->content));
- fwrite ($bf,full_tag("AUTHOR",8,false,$page->author));
- fwrite ($bf,full_tag("USERID",8,false,$page->userid));
- fwrite ($bf,full_tag("CREATED",8,false,$page->created));
- fwrite ($bf,full_tag("LASTMODIFIED",8,false,$page->lastmodified));
- fwrite ($bf,full_tag("REFS",8,false,str_replace("\n","$@LINEFEED@$",$page->refs)));
- fwrite ($bf,full_tag("META",8,false,$page->meta));
- fwrite ($bf,full_tag("HITS",8,false,$page->hits));
- $status =fwrite ($bf,end_tag("PAGE",7,true));
- }
- $status =fwrite ($bf,end_tag("PAGES",6,true));
- }
- return $status;
- }
-
- function backup_wiki_files_instance($bf,$preferences,$instanceid) {
- global $CFG, $DB;
-
- $status = true;
-
- //First we check to moddata exists and create it as necessary
- //in temp/backup/$backup_code dir
- $status = check_and_create_moddata_dir($preferences->backup_unique_code);
- $status = check_dir_exists($CFG->dataroot."/temp/backup/".$preferences->backup_unique_code."/moddata/wiki/",true);
- //Now copy the forum dir
- if ($status) {
- //Only if it exists !! Thanks to Daniel Miksik.
- if (is_dir($CFG->dataroot."/".$preferences->backup_course."/".$CFG->moddata."/wiki/".$instanceid)) {
- $status = backup_copy_file($CFG->dataroot."/".$preferences->backup_course."/".$CFG->moddata."/wiki/".$instanceid,
- $CFG->dataroot."/temp/backup/".$preferences->backup_unique_code."/moddata/wiki/".$instanceid);
- }
- }
- return $status;
- }
- //Backup wiki binary files
- function backup_wiki_files($bf,$preferences) {
- global $CFG;
- $status = true;
- //First we check to moddata exists and create it as necessary
- //in temp/backup/$backup_code dir
- $status = check_and_create_moddata_dir($preferences->backup_unique_code);
- //Now copy the forum dir
- if ($status) {
- //Only if it exists !! Thanks to Daniel Miksik.
- if (is_dir($CFG->dataroot."/".$preferences->backup_course."/".$CFG->moddata."/wiki")) {
- $handle = opendir($CFG->dataroot."/".$preferences->backup_course."/".$CFG->moddata."/wiki");
- while (false!==($item = readdir($handle))) {
- if ($item != '.' && $item != '..' && is_dir($CFG->dataroot."/".$preferences->backup_course."/".$CFG->moddata."/wiki/".$item)
- && array_key_exists($item,$preferences->mods['wiki']->instances)
- && !empty($preferences->mods['wiki']->instances[$item]->backup)) {
- $status = backup_copy_file($CFG->dataroot."/".$preferences->backup_course."/".$CFG->moddata."/wiki/".$item,
- $CFG->dataroot."/temp/backup/".$preferences->backup_unique_code."/moddata/wiki/",$item);
- }
- }
- }
- }
- return $status;
- }
- //Return a content encoded to support interactivities linking. Every module
- //should have its own. They are called automatically from the backup procedure.
- function wiki_encode_content_links ($content,$preferences) {
- global $CFG;
- $base = preg_quote($CFG->wwwroot,"/");
- //Link to the list of wikis
- $buscar="/(".$base."\/mod\/wiki\/index.php\?id\=)([0-9]+)/";
- $result= preg_replace($buscar,'$@WIKIINDEX*$2@$',$content);
- //Link to wiki view by moduleid
- $buscar="/(".$base."\/mod\/wiki\/view.php\?id\=)([0-9]+)/";
- $result= preg_replace($buscar,'$@WIKIVIEWBYID*$2@$',$result);
- return $result;
- }
- ?>