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5b76e6fc51
to resources (from resources and forums) are re-encoded in backup/restore. I could reduce the code size but for now I prefer to have it this looong form to clarify what it's doing. Please, test, test and test...
352 lines
14 KiB
PHP
352 lines
14 KiB
PHP
<?PHP //$Id$
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//This php script contains all the stuff to backup/restore
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//resource mods
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//This is the "graphical" structure of the resource mod:
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//
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// resource
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// (CL,pk->id,files)
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//
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// Meaning: pk->primary key field of the table
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// fk->foreign key to link with parent
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// nt->nested field (recursive data)
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// CL->course level info
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// UL->user level info
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// files->table may have files)
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//
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//-----------------------------------------------------------
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//This function executes all the restore procedure about this mod
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function resource_restore_mods($mod,$restore) {
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global $CFG;
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$status = true;
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//Get record from backup_ids
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$data = backup_getid($restore->backup_unique_code,$mod->modtype,$mod->id);
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if ($data) {
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//Now get completed xmlized object
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$info = $data->info;
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//traverse_xmlize($info); //Debug
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//print_object ($GLOBALS['traverse_array']); //Debug
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//$GLOBALS['traverse_array']=""; //Debug
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//Now, build the RESOURCE record structure
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$resource->course = $restore->course_id;
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$resource->name = backup_todb($info['MOD']['#']['NAME']['0']['#']);
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$resource->type = $info['MOD']['#']['TYPE']['0']['#'];
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$resource->reference = backup_todb($info['MOD']['#']['REFERENCE']['0']['#']);
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$resource->summary = backup_todb($info['MOD']['#']['SUMMARY']['0']['#']);
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$resource->alltext = backup_todb($info['MOD']['#']['ALLTEXT']['0']['#']);
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$resource->timemodified = $info['MOD']['#']['TIMEMODIFIED']['0']['#'];
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//The structure is equal to the db, so insert the resource
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$newid = insert_record ("resource",$resource);
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//Do some output
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echo "<ul><li>".get_string("modulename","resource")." \"".$resource->name."\"<br>";
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backup_flush(300);
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if ($newid) {
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//We have the newid, update backup_ids
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backup_putid($restore->backup_unique_code,$mod->modtype,
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$mod->id, $newid);
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} else {
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$status = false;
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}
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//Finalize ul
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echo "</ul>";
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} else {
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$status = false;
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}
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return $status;
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}
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//Return a content decoded to support interactivities linking. Every module
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//should have its own. They are called automatically from
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//resource_decode_content_links_caller() function in each module
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//in the restore process
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function resource_decode_content_links ($content,$restore) {
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global $CFG;
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$result = $content;
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//Link to the list of resources
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$searchstring='/\$@(RESOURCEINDEX)\*([0-9]+)@\$/';
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//We look for it
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preg_match_all($searchstring,$content,$foundset);
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//If found, then we are going to look for its new id (in backup tables)
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if ($foundset[0]) {
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//print_object($foundset); //Debug
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//Iterate over foundset[2]. They are the old_ids
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foreach($foundset[2] as $old_id) {
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//We get the needed variables here (course id)
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$rec = backup_getid($restore->backup_unique_code,"course",$old_id);
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//Personalize the searchstring
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$searchstring='/\$@(RESOURCEINDEX)\*('.$old_id.')@\$/';
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//If it is a link to this course, update the link to its new location
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if($rec->new_id) {
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//Now replace it
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$result= preg_replace($searchstring,$CFG->wwwroot.'/mod/resource/index.php?id='.$rec->new_id,$result);
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} else {
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//It's a foreign link so leave it as original
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$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/resource/index.php?id='.$old_id,$result);
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}
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}
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}
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//Link to resource view by moduleid
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$searchstring='/\$@(RESOURCEVIEWBYID)\*([0-9]+)@\$/';
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//We look for it
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preg_match_all($searchstring,$result,$foundset);
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//If found, then we are going to look for its new id (in backup tables)
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if ($foundset[0]) {
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//print_object($foundset); //Debug
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//Iterate over foundset[2]. They are the old_ids
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foreach($foundset[2] as $old_id) {
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//We get the needed variables here (course_modules id)
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$rec = backup_getid($restore->backup_unique_code,"course_modules",$old_id);
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//Personalize the searchstring
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$searchstring='/\$@(RESOURCEVIEWBYID)\*('.$old_id.')@\$/';
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//If it is a link to this course, update the link to its new location
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if($rec->new_id) {
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//Now replace it
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$result= preg_replace($searchstring,$CFG->wwwroot.'/mod/resource/view.php?id='.$rec->new_id,$result);
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} else {
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//It's a foreign link so leave it as original
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$result= preg_replace($searchstring,$restore->original_wwwroot.'/mod/resource/view.php?id='.$old_id,$result);
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}
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}
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}
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return $result;
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}
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//This function makes all the necessary calls to xxxx_decode_content_links()
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//function in each module, passing them the desired contents to be decoded
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//from backup format to destination site/course in order to mantain inter-activities
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//working in the backup/restore process. It's called from restore_decode_content_links()
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//function in restore process
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function resource_decode_content_links_caller($restore) {
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global $CFG;
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$status = true;
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echo "<ul>";
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//FORUM: Decode every POST (message) in the coure
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//Check we are restoring forums
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if ($restore->mods['forum']->restore == 1) {
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echo "<li>".get_string("from")." ".get_string("modulenameplural","forum");
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//Get all course posts
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if ($posts = get_records_sql ("SELECT p.id, p.message
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FROM {$CFG->prefix}forum_posts p,
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{$CFG->prefix}forum_discussions d
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WHERE d.course = $restore->course_id AND
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p.discussion = d.id")) {
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//Iterate over each post->message
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$i = 0; //Counter to send some output to the browser to avoid timeouts
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foreach ($posts as $post) {
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//Increment counter
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$i++;
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$content = $post->message;
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$result = resource_decode_content_links($content,$restore);
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if ($result != $content) {
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//Update record
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$post->message = addslashes($result);
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$status = update_record("forum_posts",$post);
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if ($CFG->debug>7) {
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echo "<br><hr>".$content."<br>changed to</br>".$result."<hr><br>";
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}
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}
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//Do some output
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if (($i+1) % 5 == 0) {
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echo ".";
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if (($i+1) % 100 == 0) {
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echo "<br>";
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}
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backup_flush(300);
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}
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}
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}
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}
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//FORUM: Decode every FORUM (intro) in the coure
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//Check we are restoring forums
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if ($restore->mods['forum']->restore == 1) {
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//Get all course forums
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if ($forums = get_records_sql ("SELECT f.id, f.intro
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FROM {$CFG->prefix}forum f
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WHERE f.course = $restore->course_id")) {
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//Iterate over each forum->intro
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$i = 0; //Counter to send some output to the browser to avoid timeouts
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foreach ($forums as $forum) {
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//Increment counter
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$i++;
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$content = $forum->intro;
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$result = resource_decode_content_links($content,$restore);
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if ($result != $content) {
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//Update record
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$forum->intro = addslashes($result);
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$status = update_record("forum",$forum);
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if ($CFG->debug>7) {
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echo "<br><hr>".$content."<br>changed to</br>".$result."<hr><br>";
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}
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}
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//Do some output
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if (($i+1) % 5 == 0) {
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echo ".";
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if (($i+1) % 100 == 0) {
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echo "<br>";
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}
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backup_flush(300);
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}
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}
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}
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}
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//RESOURCE: Decode every RESOURCE (alltext) in the coure
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//Check we are restoring resources
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if ($restore->mods['resource']->restore == 1) {
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echo "<li>".get_string("from")." ".get_string("modulenameplural","resource");
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//Get all course resources
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if ($resources = get_records_sql ("SELECT r.id, r.alltext
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FROM {$CFG->prefix}resource r
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WHERE r.course = $restore->course_id")) {
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//Iterate over each resource->alltext
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$i = 0; //Counter to send some output to the browser to avoid timeouts
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foreach ($resources as $resource) {
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//Increment counter
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$i++;
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$content = $resource->alltext;
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$result = resource_decode_content_links($content,$restore);
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if ($result != $content) {
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//Update record
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$resource->alltext = addslashes($result);
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$status = update_record("resource",$resource);
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if ($CFG->debug>7) {
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echo "<br><hr>".$content."<br>changed to</br>".$result."<hr><br>";
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}
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}
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//Do some output
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if (($i+1) % 5 == 0) {
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echo ".";
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if (($i+1) % 100 == 0) {
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echo "<br>";
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}
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backup_flush(300);
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}
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}
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}
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}
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//RESOURCE: Decode every RESOURCE (summary) in the coure
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//Check we are restoring resources
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if ($restore->mods['resource']->restore == 1) {
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//Get all course resources
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if ($resources = get_records_sql ("SELECT r.id, r.summary
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FROM {$CFG->prefix}resource r
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WHERE r.course = $restore->course_id")) {
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//Iterate over each resource->summary
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$i = 0; //Counter to send some output to the browser to avoid timeouts
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foreach ($resources as $resource) {
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//Increment counter
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$i++;
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$content = $resource->summary;
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$result = resource_decode_content_links($content,$restore);
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if ($result != $content) {
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//Update record
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$resource->summary = addslashes($result);
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$status = update_record("resource",$resource);
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if ($CFG->debug>7) {
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echo "<br><hr>".$content."<br>changed to</br>".$result."<hr><br>";
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}
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}
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//Do some output
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if (($i+1) % 5 == 0) {
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echo ".";
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if (($i+1) % 100 == 0) {
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echo "<br>";
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}
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backup_flush(300);
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}
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}
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}
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}
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echo "</ul>";
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return $status;
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}
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//This function returns a log record with all the necessay transformations
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//done. It's used by restore_log_module() to restore modules log.
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function resource_restore_logs($restore,$log) {
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$status = false;
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//Depending of the action, we recode different things
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switch ($log->action) {
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case "add":
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if ($log->cmid) {
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//Get the new_id of the module (to recode the info field)
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$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
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if ($mod) {
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$log->url = "view.php?id=".$log->cmid;
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$log->info = $mod->new_id;
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$status = true;
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}
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}
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break;
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case "update":
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if ($log->cmid) {
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//Get the new_id of the module (to recode the info field)
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$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
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if ($mod) {
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$log->url = "view.php?id=".$log->cmid;
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$log->info = $mod->new_id;
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$status = true;
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}
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}
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break;
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case "view":
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if ($log->cmid) {
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//Get the new_id of the module (to recode the info field)
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$mod = backup_getid($restore->backup_unique_code,$log->module,$log->info);
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if ($mod) {
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$log->url = "view.php?id=".$log->cmid;
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$log->info = $mod->new_id;
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$status = true;
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}
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}
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break;
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case "view all":
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$log->url = "index.php?id=".$log->course;
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$status = true;
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break;
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default:
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echo "action (".$log->module."-".$log->action.") unknow. Not restored<br>"; //Debug
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break;
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}
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if ($status) {
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$status = $log;
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}
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return $status;
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}
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?>
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