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https://github.com/moodle/moodle.git
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535 lines
23 KiB
PHP
535 lines
23 KiB
PHP
<?php //$Id$
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/**
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* Lesson's backup routine
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*
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* @version $Id$
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* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
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* @package lesson
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**/
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//This is the "graphical" structure of the lesson mod:
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//
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// lesson_default lesson ----------------------------|--------------------------|--------------------------|
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// (UL, pk->id,fk->courseid) (CL,pk->id) | | |
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// | | | |
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// | lesson_grades lesson_high_scores lesson_timer
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// | (UL, pk->id,fk->lessonid) (UL, pk->id,fk->lessonid) (UL, pk->id,fk->lessonid)
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// |
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// |
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// lesson_pages---------------------------|
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// (CL,pk->id,fk->lessonid) |
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// | |
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// | lesson_branch
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// | (UL, pk->id,fk->pageid)
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// lesson_answers
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// (CL,pk->id,fk->pageid)
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// |
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// |
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// |
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// lesson_attempts
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// (UL,pk->id,fk->answerid)
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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 backup procedure about this mod
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function lesson_backup_mods($bf, $preferences) {
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global $CFG;
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$status = true;
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//Iterate over lesson table
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$lessons = get_records("lesson", "course", $preferences->backup_course, "id");
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if ($lessons) {
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foreach ($lessons as $lesson) {
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if (backup_mod_selected($preferences,'lesson',$lesson->id)) {
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$status = lesson_backup_one_mod($bf,$preferences,$lesson);
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}
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}
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}
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return $status;
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}
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function lesson_backup_one_mod($bf,$preferences,$lesson) {
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global $CFG;
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if (is_numeric($lesson)) {
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$lesson = get_record('lesson','id',$lesson);
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}
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$status = true;
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//Start mod
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fwrite ($bf,start_tag("MOD",3,true));
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//Print lesson data
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fwrite ($bf,full_tag("ID",4,false,$lesson->id));
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fwrite ($bf,full_tag("MODTYPE",4,false,"lesson"));
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fwrite ($bf,full_tag("NAME",4,false,$lesson->name));
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fwrite ($bf,full_tag("PRACTICE",4,false,$lesson->practice));
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fwrite ($bf,full_tag("MODATTEMPTS",4,false,$lesson->modattempts));
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fwrite ($bf,full_tag("USEPASSWORD",4,false,$lesson->usepassword));
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fwrite ($bf,full_tag("PASSWORD",4,false,$lesson->password));
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fwrite ($bf,full_tag("DEPENDENCY",4,false,$lesson->dependency));
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fwrite ($bf,full_tag("CONDITIONS",4,false,$lesson->conditions));
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fwrite ($bf,full_tag("GRADE",4,false,$lesson->grade));
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fwrite ($bf,full_tag("CUSTOM",4,false,$lesson->custom));
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fwrite ($bf,full_tag("ONGOING",4,false,$lesson->ongoing));
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fwrite ($bf,full_tag("USEMAXGRADE",4,false,$lesson->usemaxgrade));
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fwrite ($bf,full_tag("MAXANSWERS",4,false,$lesson->maxanswers));
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fwrite ($bf,full_tag("MAXATTEMPTS",4,false,$lesson->maxattempts));
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fwrite ($bf,full_tag("REVIEW",4,false,$lesson->review));
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fwrite ($bf,full_tag("NEXTPAGEDEFAULT",4,false,$lesson->nextpagedefault));
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fwrite ($bf,full_tag("FEEDBACK",4,false,$lesson->feedback));
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fwrite ($bf,full_tag("MINQUESTIONS",4,false,$lesson->minquestions));
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fwrite ($bf,full_tag("MAXPAGES",4,false,$lesson->maxpages));
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fwrite ($bf,full_tag("TIMED",4,false,$lesson->timed));
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fwrite ($bf,full_tag("MAXTIME",4,false,$lesson->maxtime));
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fwrite ($bf,full_tag("RETAKE",4,false,$lesson->retake));
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fwrite ($bf,full_tag("ACTIVITYLINK",4,false,$lesson->activitylink));
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fwrite ($bf,full_tag("MEDIAFILE",4,false,$lesson->mediafile));
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fwrite ($bf,full_tag("MEDIAHEIGHT",4,false,$lesson->mediaheight));
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fwrite ($bf,full_tag("MEDIAWIDTH",4,false,$lesson->mediawidth));
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fwrite ($bf,full_tag("MEDIACLOSE",4,false,$lesson->mediaclose));
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fwrite ($bf,full_tag("SLIDESHOW",4,false,$lesson->slideshow));
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fwrite ($bf,full_tag("WIDTH",4,false,$lesson->width));
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fwrite ($bf,full_tag("HEIGHT",4,false,$lesson->height));
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fwrite ($bf,full_tag("BGCOLOR",4,false,$lesson->bgcolor));
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fwrite ($bf,full_tag("DISPLAYLEFT",4,false,$lesson->displayleft));
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fwrite ($bf,full_tag("DISPLAYLEFTIF",4,false,$lesson->displayleftif));
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fwrite ($bf,full_tag("PROGRESSBAR",4,false,$lesson->progressbar));
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fwrite ($bf,full_tag("SHOWHIGHSCORES",4,false,$lesson->highscores));
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fwrite ($bf,full_tag("MAXHIGHSCORES",4,false,$lesson->maxhighscores));
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fwrite ($bf,full_tag("AVAILABLE",4,false,$lesson->available));
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fwrite ($bf,full_tag("DEADLINE",4,false,$lesson->deadline));
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fwrite ($bf,full_tag("TIMEMODIFIED",4,false,$lesson->timemodified));
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//Now we backup lesson pages
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$status = backup_lesson_pages($bf,$preferences,$lesson->id);
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//if we've selected to backup users info, then backup grades, high scores, and timer info
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if ($status) {
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if (backup_userdata_selected($preferences,'lesson',$lesson->id)) {
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if(!backup_lesson_grades($bf, $preferences, $lesson->id)) {
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return false;
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}
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if (!backup_lesson_high_scores($bf, $preferences, $lesson->id)) {
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return false;
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}
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if (!backup_lesson_timer($bf, $preferences, $lesson->id)) {
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return false;
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}
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}
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// back up the default for the course. There might not be one, but if there
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// is, there will only be one.
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$status = backup_lesson_default($bf,$preferences);
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//End mod
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if ($status) {
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$status =fwrite ($bf,end_tag("MOD",3,true));
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}
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}
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return $status;
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}
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//Backup lesson_pages contents (executed from lesson_backup_mods)
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function backup_lesson_pages ($bf, $preferences, $lessonid) {
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global $CFG;
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$status = true;
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// run through the pages in their logical order, get the first page
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if ($page = get_record_select("lesson_pages", "lessonid = $lessonid AND prevpageid = 0")) {
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//Write start tag
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$status =fwrite ($bf,start_tag("PAGES",4,true));
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//Iterate over each page
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while (true) {
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//Start of page
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$status =fwrite ($bf,start_tag("PAGE",5,true));
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//Print page contents (prevpageid and nextpageid not needed)
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fwrite ($bf,full_tag("PAGEID",6,false,$page->id)); // needed to fix (absolute) jumps
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fwrite ($bf,full_tag("QTYPE",6,false,$page->qtype));
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fwrite ($bf,full_tag("QOPTION",6,false,$page->qoption));
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fwrite ($bf,full_tag("LAYOUT",6,false,$page->layout));
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fwrite ($bf,full_tag("DISPLAY",6,false,$page->display));
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fwrite ($bf,full_tag("TIMECREATED",6,false,$page->timecreated));
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fwrite ($bf,full_tag("TIMEMODIFIED",6,false,$page->timemodified));
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fwrite ($bf,full_tag("TITLE",6,false,$page->title));
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fwrite ($bf,full_tag("CONTENTS",6,false,$page->contents));
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//Now we backup lesson answers for this page
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$status = backup_lesson_answers($bf, $preferences, $page->id);
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// backup branch table info for branch tables.
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if ($status && backup_userdata_selected($preferences,'lesson',$lessonid)) {
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if (!backup_lesson_branch($bf, $preferences, $page->id)) {
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return false;
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}
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}
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//End of page
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$status =fwrite ($bf,end_tag("PAGE",5,true));
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// move to the next (logical) page
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if ($page->nextpageid) {
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if (!$page = get_record("lesson_pages", "id", $page->nextpageid)) {
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error("Lesson Backup: Next page not found!");
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}
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} else {
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// last page reached
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break;
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}
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}
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//Write end tag
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$status =fwrite ($bf,end_tag("PAGES",4,true));
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}
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return $status;
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}
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//Backup lesson_answers contents (executed from backup_lesson_pages)
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function backup_lesson_answers($bf,$preferences,$pageno) {
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global $CFG;
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$status = true;
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// get the answers in a set order, the id order
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$lesson_answers = get_records("lesson_answers", "pageid", $pageno, "id");
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//If there is lesson_answers
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if ($lesson_answers) {
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//Write start tag
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$status =fwrite ($bf,start_tag("ANSWERS",6,true));
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//Iterate over each element
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foreach ($lesson_answers as $answer) {
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//Start answer
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$status =fwrite ($bf,start_tag("ANSWER",7,true));
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//Print answer contents
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fwrite ($bf,full_tag("ID",8,false,$answer->id));
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fwrite ($bf,full_tag("JUMPTO",8,false,$answer->jumpto));
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fwrite ($bf,full_tag("GRADE",8,false,$answer->grade));
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fwrite ($bf,full_tag("SCORE",8,false,$answer->score));
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fwrite ($bf,full_tag("FLAGS",8,false,$answer->flags));
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fwrite ($bf,full_tag("TIMECREATED",8,false,$answer->timecreated));
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fwrite ($bf,full_tag("TIMEMODIFIED",8,false,$answer->timemodified));
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fwrite ($bf,full_tag("ANSWERTEXT",8,false,$answer->answer));
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fwrite ($bf,full_tag("RESPONSE",8,false,$answer->response));
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//Now we backup any lesson attempts (if student data required)
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if (backup_userdata_selected($preferences,'lesson',$answer->lessonid)) {
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$status = backup_lesson_attempts($bf,$preferences,$answer->id);
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}
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//End rubric
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$status =fwrite ($bf,end_tag("ANSWER",7,true));
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}
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//Write end tag
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$status =fwrite ($bf,end_tag("ANSWERS",6,true));
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}
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return $status;
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}
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//Backup lesson_attempts contents (executed from lesson_backup_answers)
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function backup_lesson_attempts ($bf,$preferences,$answerid) {
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global $CFG;
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$status = true;
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$lesson_attempts = get_records("lesson_attempts","answerid", $answerid);
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//If there are attempts
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if ($lesson_attempts) {
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//Write start tag
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$status =fwrite ($bf,start_tag("ATTEMPTS",8,true));
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//Iterate over each attempt
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foreach ($lesson_attempts as $attempt) {
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//Start Attempt
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$status =fwrite ($bf,start_tag("ATTEMPT",9,true));
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//Print attempt contents
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fwrite ($bf,full_tag("USERID",10,false,$attempt->userid));
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fwrite ($bf,full_tag("RETRY",10,false,$attempt->retry));
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fwrite ($bf,full_tag("CORRECT",10,false,$attempt->correct));
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fwrite ($bf,full_tag("USERANSWER",10,false,$attempt->useranswer));
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fwrite ($bf,full_tag("TIMESEEN",10,false,$attempt->timeseen));
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//End attempt
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$status =fwrite ($bf,end_tag("ATTEMPT",9,true));
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}
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//Write end tag
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$status =fwrite ($bf,end_tag("ATTEMPTS",8,true));
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}
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return $status;
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}
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//Backup lesson_grades contents (executed from backup_lesson_mods)
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function backup_lesson_grades ($bf,$preferences,$lessonid) {
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global $CFG;
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$status = true;
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$grades = get_records("lesson_grades", "lessonid", $lessonid);
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//If there is grades
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if ($grades) {
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//Write start tag
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$status =fwrite ($bf,start_tag("GRADES",4,true));
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//Iterate over each grade
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foreach ($grades as $grade) {
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//Start grade
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$status =fwrite ($bf,start_tag("GRADE",5,true));
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//Print grade contents
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fwrite ($bf,full_tag("USERID",6,false,$grade->userid));
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fwrite ($bf,full_tag("GRADE_VALUE",6,false,$grade->grade));
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fwrite ($bf,full_tag("LATE",6,false,$grade->late));
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fwrite ($bf,full_tag("COMPLETED",6,false,$grade->completed));
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//End grade
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$status =fwrite ($bf,end_tag("GRADE",5,true));
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}
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//Write end tag
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$status =fwrite ($bf,end_tag("GRADES",4,true));
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}
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return $status;
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}
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//Backup lesson_branch contents (executed from backup_lesson_pages)
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function backup_lesson_branch($bf,$preferences,$pageno) {
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global $CFG;
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$status = true;
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// get the branches in a set order, the id order
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$lesson_branch = get_records("lesson_branch", "pageid", $pageno, "id");
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//If there is lesson_branch
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if ($lesson_branch) {
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//Write start tag
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$status =fwrite ($bf,start_tag("BRANCHES",6,true));
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//Iterate over each element
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foreach ($lesson_branch as $branch) {
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//Start branch
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$status =fwrite ($bf,start_tag("BRANCH",7,true));
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//Print branch contents
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fwrite ($bf,full_tag("USERID",8,false,$branch->userid));
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fwrite ($bf,full_tag("RETRY",8,false,$branch->retry));
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fwrite ($bf,full_tag("FLAG",8,false,$branch->flag));
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fwrite ($bf,full_tag("TIMESEEN",8,false,$branch->timeseen));
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// END BRANCH
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$status =fwrite ($bf,end_tag("BRANCH",7,true));
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}
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//Write end tag
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$status =fwrite ($bf,end_tag("BRANCHES",6,true));
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}
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return $status;
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}
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//Backup lesson_timer contents (executed from backup_lesson_mods)
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function backup_lesson_timer ($bf,$preferences,$lessonid) {
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global $CFG;
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$status = true;
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$times = get_records("lesson_timer", "lessonid", $lessonid);
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//If there is times
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if ($times) {
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//Write start tag
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$status =fwrite ($bf,start_tag("TIMES",4,true));
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//Iterate over each time
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foreach ($times as $time) {
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//Start time
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$status =fwrite ($bf,start_tag("TIME",5,true));
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//Print time contents
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fwrite ($bf,full_tag("USERID",6,false,$time->userid));
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fwrite ($bf,full_tag("STARTTIME",6,false,$time->starttime));
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fwrite ($bf,full_tag("LESSONTIME",6,false,$time->lessontime));
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//End time
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$status =fwrite ($bf,end_tag("TIME",5,true));
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}
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//Write end tag
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$status =fwrite ($bf,end_tag("TIMES",4,true));
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}
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return $status;
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}
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// backup lesson_high_score contents (executed from backup_lesson_mods)
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function backup_lesson_high_scores($bf, $preferences, $lessonid) {
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global $CFG;
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$status = true;
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$highscores = get_records("lesson_high_scores", "lessonid", $lessonid);
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//If there is highscores
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if ($highscores) {
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//Write start tag
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$status =fwrite ($bf,start_tag("HIGHSCORES",4,true));
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//Iterate over each highscore
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foreach ($highscores as $highscore) {
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//Start highscore
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$status =fwrite ($bf,start_tag("HIGHSCORE",5,true));
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//Print highscore contents
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fwrite ($bf,full_tag("USERID",6,false,$highscore->userid));
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fwrite ($bf,full_tag("GRADEID",6,false,$highscore->gradeid));
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fwrite ($bf,full_tag("NICKNAME",6,false,$highscore->nickname));
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//End highscore
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$status =fwrite ($bf,end_tag("HIGHSCORE",5,true));
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}
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//Write end tag
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$status =fwrite ($bf,end_tag("HIGHSCORES",4,true));
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}
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return $status;
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}
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// backup lesson_default contents (executed from backup_lesson_mods)
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function backup_lesson_default ($bf,$preferences) {
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global $CFG;
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$status = true;
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//only one default record per course
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$default = get_record("lesson_default", "course", $preferences->backup_course);
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if ($default) {
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//Start mod
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$status =fwrite ($bf,start_tag("DEFAULTS",4,true));
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//Print default data
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fwrite ($bf,full_tag("PRACTICE",5,false,$default->practice));
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fwrite ($bf,full_tag("MODATTEMPTS",5,false,$default->modattempts));
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fwrite ($bf,full_tag("USEPASSWORD",5,false,$default->usepassword));
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fwrite ($bf,full_tag("PASSWORD",5,false,$default->password));
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fwrite ($bf,full_tag("CONDITIONS",5,false,$default->conditions));
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fwrite ($bf,full_tag("GRADE",5,false,$default->grade));
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fwrite ($bf,full_tag("CUSTOM",5,false,$default->custom));
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fwrite ($bf,full_tag("ONGOING",5,false,$default->ongoing));
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fwrite ($bf,full_tag("USEMAXGRADE",5,false,$default->usemaxgrade));
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fwrite ($bf,full_tag("MAXANSWERS",5,false,$default->maxanswers));
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fwrite ($bf,full_tag("MAXATTEMPTS",5,false,$default->maxattempts));
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fwrite ($bf,full_tag("REVIEW",5,false,$default->review));
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fwrite ($bf,full_tag("NEXTPAGEDEFAULT",5,false,$default->nextpagedefault));
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fwrite ($bf,full_tag("FEEDBACK",5,false,$default->feedback));
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fwrite ($bf,full_tag("MINQUESTIONS",5,false,$default->minquestions));
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fwrite ($bf,full_tag("MAXPAGES",5,false,$default->maxpages));
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fwrite ($bf,full_tag("TIMED",5,false,$default->timed));
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fwrite ($bf,full_tag("MAXTIME",5,false,$default->maxtime));
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fwrite ($bf,full_tag("RETAKE",5,false,$default->retake));
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fwrite ($bf,full_tag("MEDIAHEIGHT",5,false,$default->mediaheight));
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fwrite ($bf,full_tag("MEDIAWIDTH",5,false,$default->mediawidth));
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fwrite ($bf,full_tag("MEDIACLOSE",5,false,$default->mediaclose));
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fwrite ($bf,full_tag("SLIDESHOW",5,false,$default->slideshow));
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fwrite ($bf,full_tag("WIDTH",5,false,$default->width));
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fwrite ($bf,full_tag("HEIGHT",5,false,$default->height));
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fwrite ($bf,full_tag("BGCOLOR",5,false,$default->bgcolor));
|
|
fwrite ($bf,full_tag("DISPLAYLEFT",5,false,$default->displayleft));
|
|
fwrite ($bf,full_tag("DISPLAYLEFTIF",5,false,$default->displayleftif));
|
|
fwrite ($bf,full_tag("PROGRESSBAR",5,false,$default->progressbar));
|
|
fwrite ($bf,full_tag("HIGHSCORES",5,false,$default->highscores));
|
|
fwrite ($bf,full_tag("MAXHIGHSCORES",5,false,$default->maxhighscores));
|
|
$status =fwrite ($bf,end_tag("DEFAULTS",4,true));
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//Return an array of info (name,value)
|
|
function lesson_check_backup_mods($course,$user_data=false,$backup_unique_code,$instances=null) {
|
|
if (!empty($instances) && is_array($instances) && count($instances)) {
|
|
$info = array();
|
|
foreach ($instances as $id => $instance) {
|
|
$info += lesson_check_backup_mods_instances($instance,$backup_unique_code);
|
|
}
|
|
return $info;
|
|
}
|
|
//First the course data
|
|
$info[0][0] = get_string("modulenameplural","lesson");
|
|
if ($ids = lesson_ids($course)) {
|
|
$info[0][1] = count($ids);
|
|
} else {
|
|
$info[0][1] = 0;
|
|
}
|
|
|
|
//Now, if requested, the user_data
|
|
if ($user_data) {
|
|
$info[1][0] = get_string("attempts","lesson");
|
|
if ($ids = lesson_attempts_ids_by_course ($course)) {
|
|
$info[1][1] = count($ids);
|
|
} else {
|
|
$info[1][1] = 0;
|
|
}
|
|
}
|
|
return $info;
|
|
}
|
|
|
|
//Return an array of info (name,value)
|
|
function lesson_check_backup_mods_instances($instance,$backup_unique_code) {
|
|
//First the course data
|
|
$info[$instance->id.'0'][0] = '<b>'.$instance->name.'</b>';
|
|
$info[$instance->id.'0'][1] = '';
|
|
|
|
//Now, if requested, the user_data
|
|
if (!empty($instance->userdata)) {
|
|
$info[$instance->id.'1'][0] = get_string("attempts","lesson");
|
|
if ($ids = lesson_attempts_ids_by_instance ($instance->id)) {
|
|
$info[$instance->id.'1'][1] = count($ids);
|
|
} else {
|
|
$info[$instance->id.'1'][1] = 0;
|
|
}
|
|
}
|
|
return $info;
|
|
}
|
|
|
|
//Return a content encoded to support interactivities linking. Every module
|
|
//should have its own. They are called automatically from the backup procedure.
|
|
function lesson_encode_content_links ($content,$preferences) {
|
|
|
|
global $CFG;
|
|
|
|
$base = preg_quote($CFG->wwwroot,"/");
|
|
|
|
//Link to the list of lessons
|
|
$buscar="/(".$base."\/mod\/lesson\/index.php\?id\=)([0-9]+)/";
|
|
$result= preg_replace($buscar,'$@LESSONINDEX*$2@$',$content);
|
|
|
|
//Link to lesson view by moduleid
|
|
$buscar="/(".$base."\/mod\/lesson\/view.php\?id\=)([0-9]+)/";
|
|
$result= preg_replace($buscar,'$@LESSONVIEWBYID*$2@$',$result);
|
|
|
|
return $result;
|
|
}
|
|
|
|
// INTERNAL FUNCTIONS. BASED IN THE MOD STRUCTURE
|
|
|
|
//Returns an array of lesson id
|
|
function lesson_ids ($course) {
|
|
|
|
global $CFG;
|
|
|
|
return get_records_sql ("SELECT l.id, l.course
|
|
FROM {$CFG->prefix}lesson l
|
|
WHERE l.course = '$course'");
|
|
}
|
|
|
|
//Returns an array of lesson_submissions id
|
|
function lesson_attempts_ids_by_course ($course) {
|
|
|
|
global $CFG;
|
|
|
|
return get_records_sql ("SELECT a.id , a.lessonid
|
|
FROM {$CFG->prefix}lesson_attempts a,
|
|
{$CFG->prefix}lesson l
|
|
WHERE l.course = '$course' AND
|
|
a.lessonid = l.id");
|
|
}
|
|
|
|
//Returns an array of lesson_submissions id
|
|
function lesson_attempts_ids_by_instance ($instanceid) {
|
|
|
|
global $CFG;
|
|
|
|
return get_records_sql ("SELECT a.id , a.lessonid
|
|
FROM {$CFG->prefix}lesson_attempts a
|
|
WHERE a.lessonid = $instanceid");
|
|
}
|
|
?>
|