mirror_php/moodle
1
0
Fork 0
mirror of https://github.com/moodle/moodle.git synced 2025-01-20 15:08:32 +01:00
Code Issues Projects Releases Wiki Activity
moodle/mod/forum/restorelib.php

1076 lines
46 KiB
PHP
Raw Blame History

<?php //$Id$
//This php script contains all the stuff to backup/restore
//forum mods
//This is the "graphical" structure of the forum mod:
//
// forum
// (CL,pk->id)
// |
// ---------------------------------------------------
// | |
// subscriptions forum_discussions
//(UL,pk->id, fk->forum) ---------------(UL,pk->id, fk->forum)
// | |
// | |
// | |
// | forum_posts
// |-------------(UL,pk->id,fk->discussion,
// | nt->parent,files)
// | |
// | |
// | |
// forum_read forum_ratings
// (UL,pk->id,fk->post (UL,pk->id,fk->post)
//
// 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 forum_restore_mods($mod,$restore) {
global $CFG,$db;
$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 FORUM record structure
$forum->course = $restore->course_id;
$forum->type = backup_todb($info['MOD']['#']['TYPE']['0']['#']);
$forum->name = backup_todb($info['MOD']['#']['NAME']['0']['#']);
$forum->intro = backup_todb($info['MOD']['#']['INTRO']['0']['#']);
$forum->open = backup_todb($info['MOD']['#']['OPEN']['0']['#']);
$forum->assessed = backup_todb($info['MOD']['#']['ASSESSED']['0']['#']);
$forum->assesspublic = backup_todb($info['MOD']['#']['ASSESSPUBLIC']['0']['#']);
$forum->assesstimestart = backup_todb($info['MOD']['#']['ASSESSTIMESTART']['0']['#']);
$forum->assesstimefinish = backup_todb($info['MOD']['#']['ASSESSTIMEFINISH']['0']['#']);
$forum->maxbytes = backup_todb($info['MOD']['#']['MAXBYTES']['0']['#']);
$forum->scale = backup_todb($info['MOD']['#']['SCALE']['0']['#']);
$forum->forcesubscribe = backup_todb($info['MOD']['#']['FORCESUBSCRIBE']['0']['#']);
$forum->rsstype = backup_todb($info['MOD']['#']['RSSTYPE']['0']['#']);
$forum->rssarticles = backup_todb($info['MOD']['#']['RSSARTICLES']['0']['#']);
$forum->timemodified = backup_todb($info['MOD']['#']['TIMEMODIFIED']['0']['#']);
//We have to recode the scale field if it's <0 (positive is a grade, not a scale)
if ($forum->scale < 0) {
$scale = backup_getid($restore->backup_unique_code,"scale",abs($forum->scale));
if ($scale) {
$forum->scale = -($scale->new_id);
}
}
$forumtobeinserted = true;
//If the forum is a teacher forum, then we have to look if it exists in destination course
if ($forum->type == "teacher") {
//Look for teacher forum in destination course
$teacherforum = get_record("forum","course",$restore->course_id,"type","teacher");
if ($teacherforum) {
$newid = $teacherforum->id;
$forumtobeinserted = false;
}
}
//If the forum has to be inserted
if ($forumtobeinserted) {
//The structure is equal to the db, so insert the forum
$newid = insert_record ("forum",$forum);
}
//Do some output
echo "<li>".get_string("modulename","forum")." \"".$forum->name."\"</li>";
backup_flush(300);
if ($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->mods['forum']->userinfo) {
//Restore forum_subscriptions
$status = forum_subscriptions_restore_mods ($newid,$info,$restore);
if ($status) {
//Restore forum_discussions
$status = forum_discussions_restore_mods ($newid,$info,$restore);
}
if ($status) {
//Restore forum_read
$status = forum_read_restore_mods ($newid,$info,$restore);
}
}
} else {
$status = false;
}
} else {
$status = false;
}
return $status;
}
//This function restores the forum_subscriptions
function forum_subscriptions_restore_mods($forum_id,$info,$restore) {
global $CFG;
$status = true;
//Get the discussions array
$subscriptions = $info['MOD']['#']['SUBSCRIPTIONS']['0']['#']['SUBSCRIPTION'];
//Iterate over subscriptions
for($i = 0; $i < sizeof($subscriptions); $i++) {
$sus_info = $subscriptions[$i];
//traverse_xmlize($sus_info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//We'll need this later!!
$oldid = backup_todb($sus_info['#']['ID']['0']['#']);
$olduserid = backup_todb($sus_info['#']['USERID']['0']['#']);
//Now, build the FORUM_SUBSCRIPTIONS record structure
$subscription->forum = $forum_id;
$subscription->userid = backup_todb($sus_info['#']['USERID']['0']['#']);
//We have to recode the userid field
$user = backup_getid($restore->backup_unique_code,"user",$subscription->userid);
if ($user) {
$subscription->userid = $user->new_id;
}
//The structure is equal to the db, so insert the forum_subscription
$newid = insert_record ("forum_subscriptions",$subscription);
//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,"forum_subscriptions",$oldid,
$newid);
} else {
$status = false;
}
}
return $status;
}
//This function restores the forum_discussions
function forum_discussions_restore_mods($forum_id,$info,$restore) {
global $CFG;
$status = true;
//Get the discussions array
$discussions = $info['MOD']['#']['DISCUSSIONS']['0']['#']['DISCUSSION'];
//Iterate over discussions
for($i = 0; $i < sizeof($discussions); $i++) {
$dis_info = $discussions[$i];
//traverse_xmlize($dis_info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//We'll need this later!!
$oldid = backup_todb($dis_info['#']['ID']['0']['#']);
$olduserid = backup_todb($dis_info['#']['USERID']['0']['#']);
//Now, build the FORUM_DISCUSSIONS record structure
$discussion->forum = $forum_id;
$discussion->course = $restore->course_id;
$discussion->name = backup_todb($dis_info['#']['NAME']['0']['#']);
$discussion->firstpost = backup_todb($dis_info['#']['FIRSTPOST']['0']['#']);
$discussion->userid = backup_todb($dis_info['#']['USERID']['0']['#']);
$discussion->groupid = backup_todb($dis_info['#']['GROUPID']['0']['#']);
$discussion->assessed = backup_todb($dis_info['#']['ASSESSED']['0']['#']);
$discussion->timemodified = backup_todb($dis_info['#']['TIMEMODIFIED']['0']['#']);
$discussion->usermodified = backup_todb($dis_info['#']['USERMODIFIED']['0']['#']);
//We have to recode the userid field
$user = backup_getid($restore->backup_unique_code,"user",$discussion->userid);
if ($user) {
$discussion->userid = $user->new_id;
}
//We have to recode the groupid field
$group = backup_getid($restore->backup_unique_code,"group",$discussion->groupid);
if ($group) {
$discussion->groupid = $group->new_id;
}
//We have to recode the usermodified field
$user = backup_getid($restore->backup_unique_code,"user",$discussion->usermodified);
if ($user) {
$discussion->usermodified = $user->new_id;
}
//The structure is equal to the db, so insert the forum_discussions
$newid = insert_record ("forum_discussions",$discussion);
//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,"forum_discussions",$oldid,
$newid);
//Restore forum_posts
$status = forum_posts_restore_mods ($forum_id,$newid,$dis_info,$restore);
//Now recalculate firstpost field
$old_firstpost = $discussion->firstpost;
//Get its new post_id from backup_ids table
$rec = backup_getid($restore->backup_unique_code,"forum_posts",$old_firstpost);
if ($rec) {
//Put its new firstpost
$discussion->firstpost = $rec->new_id;
if ($post = get_record("forum_posts", "id", $discussion->firstpost)) {
$discussion->userid = $post->userid;
}
} else {
$discussion->firstpost = 0;
$discussion->userid = 0;
}
//Create temp discussion record
$temp_discussion->id = $newid;
$temp_discussion->firstpost = $discussion->firstpost;
$temp_discussion->userid = $discussion->userid;
//Update discussion (only firstpost and userid will be changed)
$status = update_record("forum_discussions",$temp_discussion);
//echo "Updated firstpost ".$old_firstpost." to ".$temp_discussion->firstpost."<br />"; //Debug
} else {
$status = false;
}
}
return $status;
}
//This function restores the forum_read
function forum_read_restore_mods($forum_id,$info,$restore) {
global $CFG;
$status = true;
//Get the read array
$readposts = $info['MOD']['#']['READPOSTS']['0']['#']['READ'];
//Iterate over readposts
for($i = 0; $i < sizeof($readposts); $i++) {
$rea_info = $readposts[$i];
//traverse_xmlize($rea_info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//We'll need this later!!
$oldid = backup_todb($rea_info['#']['ID']['0']['#']);
//Now, build the FORUM_READ record structure
$read->forumid = $forum_id;
$read->userid = backup_todb($rea_info['#']['USERID']['0']['#']);
$read->discussionid = backup_todb($rea_info['#']['DISCUSSIONID']['0']['#']);
$read->postid = backup_todb($rea_info['#']['POSTID']['0']['#']);
$read->firstread = backup_todb($rea_info['#']['FIRSTREAD']['0']['#']);
$read->lastread = backup_todb($rea_info['#']['LASTREAD']['0']['#']);
//Some recoding and check are performed now
$toinsert = true;
//We have to recode the userid field
$user = backup_getid($restore->backup_unique_code,"user",$read->userid);
if ($user) {
$read->userid = $user->new_id;
} else {
$toinsert = false;
}
//We have to recode the discussionid field
$discussion = backup_getid($restore->backup_unique_code,"forum_discussions",$read->discussionid);
if ($discussion) {
$read->discussionid = $discussion->new_id;
} else {
$toinsert = false;
}
//We have to recode the postid field
$post = backup_getid($restore->backup_unique_code,"forum_posts",$read->postid);
if ($post) {
$read->postid = $post->new_id;
} else {
$toinsert = false;
}
//The structure is equal to the db, so insert the forum_read
$newid = 0;
if ($toinsert) {
$newid = insert_record ("forum_read",$read);
}
//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,"forum_read",$oldid,
$newid);
} else {
$status = false;
}
}
return $status;
}
//This function restores the forum_posts
function forum_posts_restore_mods($new_forum_id,$discussion_id,$info,$restore) {
global $CFG;
$status = true;
//Get the posts array
$posts = $info['#']['POSTS']['0']['#']['POST'];
//Iterate over posts
for($i = 0; $i < sizeof($posts); $i++) {
$pos_info = $posts[$i];
//traverse_xmlize($pos_info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//We'll need this later!!
$oldid = backup_todb($pos_info['#']['ID']['0']['#']);
$olduserid = backup_todb($pos_info['#']['USERID']['0']['#']);
//Now, build the FORUM_POSTS record structure
$post->discussion = $discussion_id;
$post->parent = backup_todb($pos_info['#']['PARENT']['0']['#']);
$post->userid = backup_todb($pos_info['#']['USERID']['0']['#']);
$post->created = backup_todb($pos_info['#']['CREATED']['0']['#']);
$post->modified = backup_todb($pos_info['#']['MODIFIED']['0']['#']);
$post->mailed = backup_todb($pos_info['#']['MAILED']['0']['#']);
$post->subject = backup_todb($pos_info['#']['SUBJECT']['0']['#']);
$post->message = backup_todb($pos_info['#']['MESSAGE']['0']['#']);
$post->format = backup_todb($pos_info['#']['FORMAT']['0']['#']);
$post->attachment = backup_todb($pos_info['#']['ATTACHMENT']['0']['#']);
$post->totalscore = backup_todb($pos_info['#']['TOTALSCORE']['0']['#']);
//We have to recode the userid field
$user = backup_getid($restore->backup_unique_code,"user",$post->userid);
if ($user) {
$post->userid = $user->new_id;
}
//The structure is equal to the db, so insert the forum_posts
$newid = insert_record ("forum_posts",$post);
//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,"forum_posts",$oldid,
$newid);
//Get old forum id from backup_ids
$rec = get_record("backup_ids","backup_code",$restore->backup_unique_code,
"table_name","forum",
"new_id",$new_forum_id);
//Now copy moddata associated files
$status = forum_restore_files ($rec->old_id, $new_forum_id,
$oldid, $newid, $restore);
//Now restore post ratings
$status = forum_ratings_restore_mods($newid,$pos_info,$restore);
} else {
$status = false;
}
}
//Now we get every post in this discussion_id and recalculate its parent post
$posts = get_records ("forum_posts","discussion",$discussion_id);
if ($posts) {
//Iterate over each post
foreach ($posts as $post) {
//Get its parent
$old_parent = $post->parent;
//Get its new post_id from backup_ids table
$rec = backup_getid($restore->backup_unique_code,"forum_posts",$old_parent);
if ($rec) {
//Put its new parent
$post->parent = $rec->new_id;
} else {
$post->parent = 0;
}
//Create temp post record
$temp_post->id = $post->id;
$temp_post->parent = $post->parent;
//echo "Updated parent ".$old_parent." to ".$temp_post->parent."<br />"; //Debug
//Update post (only parent will be changed)
$status = update_record("forum_posts",$temp_post);
}
}
return $status;
}
//This function copies the forum related info from backup temp dir to course moddata folder,
//creating it if needed and recoding everything (forum id and post id)
function forum_restore_files ($oldforid, $newforid, $oldpostid, $newpostid, $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 forum directory
if ($status) {
$forum_path = $moddata_path."/forum";
//Check it exists and create it
$status = check_dir_exists($forum_path,true);
}
//Now locate the temp dir we are restoring from
if ($status) {
$temp_path = $CFG->dataroot."/temp/backup/".$restore->backup_unique_code.
"/moddata/forum/".$oldforid."/".$oldpostid;
//Check it exists
if (is_dir($temp_path)) {
$todo = true;
}
}
//If todo, we create the neccesary dirs in course moddata/forum
if ($status and $todo) {
//First this forum id
$this_forum_path = $forum_path."/".$newforid;
$status = check_dir_exists($this_forum_path,true);
//Now this post id
$post_forum_path = $this_forum_path."/".$newpostid;
//And now, copy temp_path to post_forum_path
$status = backup_copy_file($temp_path, $post_forum_path);
}
return $status;
}
//This function restores the forum_ratings
function forum_ratings_restore_mods($new_post_id,$info,$restore) {
global $CFG;
$status = true;
//Get the ratings array
$ratings = $info['#']['RATINGS']['0']['#']['RATING'];
//Iterate over ratings
for($i = 0; $i < sizeof($ratings); $i++) {
$rat_info = $ratings[$i];
//traverse_xmlize($rat_info); //Debug
//print_object ($GLOBALS['traverse_array']); //Debug
//$GLOBALS['traverse_array']=""; //Debug
//We'll need this later!!
$oldid = backup_todb($rat_info['#']['ID']['0']['#']);
$olduserid = backup_todb($rat_info['#']['USERID']['0']['#']);
//Now, build the FORM_RATINGS record structure
$rating->post = $new_post_id;
$rating->userid = backup_todb($rat_info['#']['USERID']['0']['#']);
$rating->time = backup_todb($rat_info['#']['TIME']['0']['#']);
$rating->rating = backup_todb($rat_info['#']['POST_RATING']['0']['#']);
//We have to recode the userid field
$user = backup_getid($restore->backup_unique_code,"user",$rating->userid);
if ($user) {
$rating->userid = $user->new_id;
}
//The structure is equal to the db, so insert the forum_ratings
$newid = insert_record ("forum_ratings",$rating);
//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,"forum_ratings",$oldid,
$newid);
} else {
$status = false;
}
}
return $status;
}
//This function returns a log record with all the necessay transformations
//done. It's used by restore_log_module() to restore modules log.
function forum_restore_logs($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;
$status = true;
}
}
break;
case "view forum":
if ($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 forums":
$log->url = "index.php?id=".$log->course;
$status = true;
break;
case "subscribe":
if ($log->cmid) {
//Get the new_id of the module (to recode the info and url field)
$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
if ($mod) {
$log->url = "view.php?f=".$mod->new_id;
$log->info = $mod->new_id;
$status = true;
}
}
break;
case "view subscriber":
if ($log->cmid) {
//Get the new_id of the module (to recode the info and field)
$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
if ($mod) {
$log->url = "subscribers.php?id=".$mod->new_id;
$log->info = $mod->new_id;
$status = true;
}
}
break;
case "unsubscribe":
if ($log->cmid) {
//Get the new_id of the module (to recode the info and url field)
$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
if ($mod) {
$log->url = "view.php?f=".$mod->new_id;
$log->info = $mod->new_id;
$status = true;
}
}
break;
case "add discussion":
if ($log->cmid) {
//Get the new_id of the discussion (to recode the info and url field)
$dis = backup_getid($restore->backup_unique_code,"forum_discussions",$log->info);
if ($dis) {
$log->url = "discuss.php?d=".$dis->new_id;
$log->info = $dis->new_id;
$status = true;
}
}
break;
case "view discussion":
if ($log->cmid) {
//Get the new_id of the discussion (to recode the info and url field)
$dis = backup_getid($restore->backup_unique_code,"forum_discussions",$log->info);
if ($dis) {
$log->url = "discuss.php?d=".$dis->new_id;
$log->info = $dis->new_id;
$status = true;
}
}
break;
case "move discussion":
if ($log->cmid) {
//Get the new_id of the discussion (to recode the info and url field)
$dis = backup_getid($restore->backup_unique_code,"forum_discussions",$log->info);
if ($dis) {
$log->url = "discuss.php?d=".$dis->new_id;
$log->info = $dis->new_id;
$status = true;
}
}
break;
case "delete discussi":
if ($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;
$status = true;
}
}
break;
case "add post":
if ($log->cmid) {
//Get the new_id of the post (to recode the url and info field)
$pos = backup_getid($restore->backup_unique_code,"forum_posts",$log->info);
if ($pos) {
//Get the post record from database
$dbpos = get_record("forum_posts","id","$pos->new_id");
if ($dbpos) {
$log->url = "discuss.php?d=".$dbpos->discussion."&amp;parent=".$pos->new_id;
$log->info = $pos->new_id;
$status = true;
}
}
}
break;
case "update post":
if ($log->cmid) {
//Get the new_id of the post (to recode the url and info field)
$pos = backup_getid($restore->backup_unique_code,"forum_posts",$log->info);
if ($pos) {
//Get the post record from database
$dbpos = get_record("forum_posts","id","$pos->new_id");
if ($dbpos) {
$log->url = "discuss.php?d=".$dbpos->discussion."&amp;parent=".$pos->new_id;
$log->info = $pos->new_id;
$status = true;
}
}
}
break;
case "delete post":
if ($log->cmid) {
//Extract the discussion id from the url field
$disid = substr(strrchr($log->url,"="),1);
//Get the new_id of the discussion (to recode the url field)
$dis = backup_getid($restore->backup_unique_code,"quiz_discussions",$disid);
if ($dis) {
$log->url = "discuss.php?d=".$dis->new_id;
$status = true;
}
}
break;
case "search":
$log->url = "search.php?id=".$log->course."&amp;search=".urlencode($log->info);
$status = true;
break;
default:
echo "action (".$log->module."-".$log->action.") unknow. Not restored<br />"; //Debug
break;
}
if ($status) {
$status = $log;
}
return $status;
}
//Return a content decoded to support interactivities linking. Every module
//should have its own. They are called automatically from
//forum_decode_content_links_caller() function in each module
//in the restore process
function forum_decode_content_links ($content,$restore) {
global $CFG;
$result = $content;
//Link to the list of forums
$searchstring='/\$@(FORUMINDEX)\*([0-9]+)@\$/';
//We look for it
preg_match_all($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
$searchstring='/\$@(FORUMINDEX)\*('.$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,$CFG->wwwroot.'/mod/forum/index.php?id='.$rec->new_id,$result);
} else {
//It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/forum/index.php?id='.$old_id,$result);
}
}
}
//Link to forum view by moduleid
$searchstring='/\$@(FORUMVIEWBYID)\*([0-9]+)@\$/';
//We look for it
preg_match_all($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
$searchstring='/\$@(FORUMVIEWBYID)\*('.$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,$CFG->wwwroot.'/mod/forum/view.php?id='.$rec->new_id,$result);
} else {
//It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/forum/view.php?id='.$old_id,$result);
}
}
}
//Link to forum view by forumid
$searchstring='/\$@(FORUMVIEWBYF)\*([0-9]+)@\$/';
//We look for it
preg_match_all($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 (forum id)
$rec = backup_getid($restore->backup_unique_code,"forum",$old_id);
//Personalize the searchstring
$searchstring='/\$@(FORUMVIEWBYF)\*('.$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,$CFG->wwwroot.'/mod/forum/view.php?f='.$rec->new_id,$result);
} else {
//It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/forum/view.php?f='.$old_id,$result);
}
}
}
//Link to forum discussion by discussionid
$searchstring='/\$@(FORUMDISCUSSIONVIEW)\*([0-9]+)@\$/';
//We look for it
preg_match_all($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 (discussion id)
$rec = backup_getid($restore->backup_unique_code,"forum_discussions",$old_id);
//Personalize the searchstring
$searchstring='/\$@(FORUMDISCUSSIONVIEW)\*('.$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,$CFG->wwwroot.'/mod/forum/discuss.php?d='.$rec->new_id,$result);
} else {
//It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/forum/discuss.php?d='.$old_id,$result);
}
}
}
//Link to forum discussion with parent syntax
$searchstring='/\$@(FORUMDISCUSSIONVIEWPARENT)\*([0-9]+)\*([0-9]+)@\$/';
//We look for it
preg_match_all($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 (discussion id and post id)
$rec = backup_getid($restore->backup_unique_code,"forum_discussions",$old_id);
$rec2 = backup_getid($restore->backup_unique_code,"forum_posts",$old_id2);
//Personalize the searchstring
$searchstring='/\$@(FORUMDISCUSSIONVIEWPARENT)\*('.$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,$CFG->wwwroot.'/mod/forum/discuss.php?d='.$rec->new_id.'&parent='.$rec2->new_id,$result);
} else {
//It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/forum/discuss.php?d='.$old_id.'&parent='.$old_id2,$result);
}
}
}
//Link to forum discussion with relative syntax
$searchstring='/\$@(FORUMDISCUSSIONVIEWINSIDE)\*([0-9]+)\*([0-9]+)@\$/';
//We look for it
preg_match_all($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 (discussion id and post id)
$rec = backup_getid($restore->backup_unique_code,"forum_discussions",$old_id);
$rec2 = backup_getid($restore->backup_unique_code,"forum_posts",$old_id2);
//Personalize the searchstring
$searchstring='/\$@(FORUMDISCUSSIONVIEWINSIDE)\*('.$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,$CFG->wwwroot.'/mod/forum/discuss.php?d='.$rec->new_id.'#'.$rec2->new_id,$result);
} else {
//It's a foreign link so leave it as original
$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/forum/discuss.php?d='.$old_id.'#'.$old_id2,$result);
}
}
}
return $result;
}
//This function makes all the necessary calls to xxxx_decode_content_links()
//function in each module, passing them the desired contents to be decoded
//from backup format to destination site/course in order to mantain inter-activities
//working in the backup/restore process. It's called from restore_decode_content_links()
//function in restore process
function forum_decode_content_links_caller($restore) {
global $CFG;
$status = true;
echo "<ul>";
//FORUM: Decode every POST (message) in the coure
//Check we are restoring forums
if ($restore->mods['forum']->restore == 1) {
echo "<li>".get_string("from")." ".get_string("modulenameplural","forum").'</li>';
//Get all course posts
if ($posts = get_records_sql ("SELECT p.id, p.message
FROM {$CFG->prefix}forum_posts p,
{$CFG->prefix}forum_discussions d
WHERE d.course = $restore->course_id AND
p.discussion = d.id")) {
//Iterate over each post->message
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($posts as $post) {
//Increment counter
$i++;
$content = $post->message;
$result = forum_decode_content_links($content,$restore);
if ($result != $content) {
//Update record
$post->message = addslashes($result);
$status = update_record("forum_posts",$post);
if ($CFG->debug>7) {
echo "<br /><hr />".$content."<br />changed to<br />".$result."<hr /><br />";
}
}
//Do some output
if (($i+1) % 5 == 0) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br />";
}
backup_flush(300);
}
}
}
}
//FORUM: Decode every FORUM (intro) in the coure
//Check we are restoring forums
if ($restore->mods['forum']->restore == 1) {
//Get all course forums
if ($forums = get_records_sql ("SELECT f.id, f.intro
FROM {$CFG->prefix}forum f
WHERE f.course = $restore->course_id")) {
//Iterate over each forum->intro
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($forums as $forum) {
//Increment counter
$i++;
$content = $forum->intro;
$result = forum_decode_content_links($content,$restore);
if ($result != $content) {
//Update record
$forum->intro = addslashes($result);
$status = update_record("forum",$forum);
if ($CFG->debug>7) {
echo "<br /><hr />".$content."<br />changed to</br>".$result."<hr /><br />";
}
}
//Do some output
if (($i+1) % 5 == 0) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br />";
}
backup_flush(300);
}
}
}
}
//RESOURCE: Decode every RESOURCE (alltext) in the coure
//Check we are restoring resources
if ($restore->mods['resource']->restore == 1) {
echo "<li>".get_string("from")." ".get_string("modulenameplural","resource").'</li>';
//Get all course resources
if ($resources = get_records_sql ("SELECT r.id, r.alltext
FROM {$CFG->prefix}resource r
WHERE r.course = $restore->course_id")) {
//Iterate over each resource->alltext
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($resources as $resource) {
//Increment counter
$i++;
$content = $resource->alltext;
$result = forum_decode_content_links($content,$restore);
if ($result != $content) {
//Update record
$resource->alltext = addslashes($result);
$status = update_record("resource",$resource);
if ($CFG->debug>7) {
echo "<br /><hr />".$content."<br />changed to</br>".$result."<hr /><br />";
}
}
//Do some output
if (($i+1) % 5 == 0) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br />";
}
backup_flush(300);
}
}
}
}
//RESOURCE: Decode every RESOURCE (summary) in the coure
//Check we are restoring resources
if ($restore->mods['resource']->restore == 1) {
//Get all course resources
if ($resources = get_records_sql ("SELECT r.id, r.summary
FROM {$CFG->prefix}resource r
WHERE r.course = $restore->course_id")) {
//Iterate over each resource->summary
$i = 0; //Counter to send some output to the browser to avoid timeouts
foreach ($resources as $resource) {
//Increment counter
$i++;
$content = $resource->summary;
$result = forum_decode_content_links($content,$restore);
if ($result != $content) {
//Update record
$resource->summary = addslashes($result);
$status = update_record("resource",$resource);
if ($CFG->debug>7) {
echo "<br /><hr />".$content."<br />changed to</br>".$result."<hr /><br />";
}
}
//Do some output
if (($i+1) % 5 == 0) {
echo ".";
if (($i+1) % 100 == 0) {
echo "<br />";
}
backup_flush(300);
}
}
}
}
echo "</ul>";
return $status;
}
?>
Reference in New Issue View Git Blame Copy Permalink