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1221 lines
55 KiB
PHP
1221 lines
55 KiB
PHP
<?php //$Id$
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//This php script contains all the stuff to backup/restore
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//quiz mods
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//This is the "graphical" structure of the quiz mod:
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//To see, put your terminal to 160cc
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//
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// quiz quiz_categories
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// (CL,pk->id) (CL,pk->id)
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// | |
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// ------------------------------------------------------------------- |
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// | | | | |.......................................
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// | quiz_grades | quiz_question_versions | .
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// | (UL,pk->id,fk->quiz) | (CL,pk->id,fk->quiz) | .
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// | | . | ----quiz_question_datasets---- .
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// quiz_attempts quiz_question_instances . | | (CL,pk->id,fk->question, | .
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// (UL,pk->id,fk->quiz) (CL,pk->id,fk->quiz,question) . | | fk->dataset_definition) | .
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// | | . | | | .
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// | question_sessions | . | | | .
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// |---------(UL,pk->id,fk->attempt,question)-----| . | | | .
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// | . | . | | quiz_dataset_definitions
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// | . | . | | (CL,pk->id,fk->category)
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// | quiz_states | quiz_questions |
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// ----------(UL,pk->id,fk->attempt,question)--------------------------(CL,pk->id,fk->category,files) |
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// | | quiz_dataset_items
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// | | (CL,pk->id,fk->definition)
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// --------- |
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// | |
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// quiz_rqp_states |
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// (UL,pk->id,fk->stateid) | quiz_rqp_type
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// | (SL,pk->id)
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// | |
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// -------------------------------------------------------------------------------------------------------------- |
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// | | | | | | | quiz_rqp
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// | | | | | | |--(CL,pk->id,fk->question)
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// | | | | quiz_calculated | |
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// quiz_truefalse | quiz_multichoice | (CL,pl->id,fk->question) | |
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// (CL,pk->id,fk->question) | (CL,pk->id,fk->question) | . | | quiz_randomsamatch
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// . | . | . | |--(CL,pk->id,fk->question)
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// . quiz_shortanswer . quiz_numerical . quiz_multianswer. |
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// . (CL,pk->id,fk->question) . (CL,pk->id,fk->question) . (CL,pk->id,fk->question) |
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// . . . . . . | quiz_match
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// . . . . . . |--(CL,pk->id,fk->question)
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// . . . . . . | .
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// . . . . . . | .
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// . . . . . . | .
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// . . . . . . | quiz_match_sub
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// ........................................................................................ |--(CL,pk->id,fk->question)
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// . |
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// . |
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// . | quiz_numerical_units
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// quiz_answers |--(CL,pk->id,fk->question)
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// (CL,pk->id,fk->question)----------------------------------------------------------
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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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// SL->site level info
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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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// Comments:
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//THIS MOD BACKUP NEEDS TO USE THE mdl_backup_ids TABLE
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//This module is special, because we make the backup in two steps:
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// 1.-We backup every category and their questions (complete structure). It includes this tables:
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// - quiz_categories
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// - quiz_questions
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// - quiz_rqp
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// - quiz_truefalse
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// - quiz_shortanswer
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// - quiz_multianswer
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// - quiz_multichoice
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// - quiz_numerical
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// - quiz_randomsamatch
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// - quiz_match
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// - quiz_match_sub
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// - quiz_calculated
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// - quiz_answers
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// - quiz_numerical_units
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// - quiz_question_datasets
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// - quiz_dataset_definitions
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// - quiz_dataset_items
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// All this backup info have its own section in moodle.xml (QUESTION_CATEGORIES) and it's generated
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// before every module backup standard invocation. And only if to backup quizzes has been selected !!
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// It's invoked with quiz_backup_question_categories. (course independent).
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// 2.-Standard module backup (Invoked via quiz_backup_mods). It includes this tables:
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// - quiz
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// - quiz_question_versions
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// - quiz_question_instances
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// - quiz_attempts
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// - quiz_grades
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// - quiz_states
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// - question_sessions
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// This step is the standard mod backup. (course dependent).
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//STEP 1. Backup categories/questions and associated structures
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// (course independent)
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//Insert necessary category ids to backup_ids table
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function insert_category_ids ($course,$backup_unique_code,$instances=null) {
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global $CFG;
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include_once("$CFG->dirroot/mod/quiz/constants.php");
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//Create missing categories and reasign orphaned questions
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fix_orphaned_questions($course);
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// defaults
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$where = "q.course = '$course' AND g.quiz = q.id AND ";
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$from = ", {$CFG->prefix}quiz q";
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// but if we have an array of quiz ids, use those instead.
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if (!empty($instances) && is_array($instances) && count($instances)) {
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$where = ' g.quiz IN ('.implode(',',array_keys($instances)).') AND ';
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$from = '';
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}
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//Detect used categories (by category in questions)
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$status = execute_sql("INSERT INTO {$CFG->prefix}backup_ids
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(backup_code, table_name, old_id)
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SELECT DISTINCT $backup_unique_code,'quiz_categories',t.category
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FROM {$CFG->prefix}quiz_questions t,
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{$CFG->prefix}quiz_question_instances g
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$from
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WHERE $where g.question = t.id",false);
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//Now, foreach detected category, we look for their parents upto 0 (top category)
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$categories = get_records_sql("SELECT old_id, old_id
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FROM {$CFG->prefix}backup_ids
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WHERE backup_code = $backup_unique_code AND
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table_name = 'quiz_categories'");
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if ($categories) {
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foreach ($categories as $category) {
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if ($dbcat = get_record('quiz_categories','id',$category->old_id)) {
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//echo $dbcat->name; //Debug
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//Go up to 0
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while ($dbcat->parent != 0) {
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//echo '->'; //Debug
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$current = $dbcat->id;
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if ($dbcat = get_record('quiz_categories','id',$dbcat->parent)) {
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//Found parent, add it to backup_ids (by using backup_putid
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//we ensure no duplicates!)
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$status = backup_putid($backup_unique_code,'quiz_categories',$dbcat->id,0);
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//echo $dbcat->name; //Debug
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} else {
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//Parent not found, fix it (set its parent to 0)
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set_field ('quiz_categories','parent',0,'id',$current);
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//echo 'assigned to top!'; //Debug
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}
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}
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//echo '<br />'; //Debug
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}
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}
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}
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// Now we look for random questions that can use questions from subcategories
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// because we will have to add these subcategories
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$sql = "SELECT t.id, t.category
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FROM {$CFG->prefix}quiz_question_instances AS g,
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{$CFG->prefix}quiz_questions AS t
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$from
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WHERE $where t.id = g.question
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AND t.qtype = '".RANDOM."'
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AND t.questiontext = '1'";
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if ($randoms = get_records_sql($sql)) {
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foreach ($randoms as $random) {
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$status = quiz_backup_add_category_tree($backup_unique_code, $random->category);
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}
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}
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return $status;
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}
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/**
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* Helper function adding the id of a category and all its descendents to the backup_ids
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*/
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function quiz_backup_add_category_tree($backup_unique_code, $categoryid) {
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$status = backup_putid($backup_unique_code,'quiz_categories',$categoryid,0);
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if ($subcategories = get_records('quiz_categories', 'parent', $categoryid, 'sortorder ASC', 'id, id')) {
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foreach ($subcategories as $subcategory) {
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$status = quiz_backup_add_category_tree($backup_unique_code, $subcategory->id);
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}
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}
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return $status;
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}
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//This function is used to detect orphaned questions (pointing to a
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//non existing category) and to recreate such category. This function
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//is used by the backup process, to ensure consistency and should be
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//executed in the upgrade process and, perhaps in the health center.
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function fix_orphaned_questions ($course) {
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global $CFG;
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$categories = get_records_sql("SELECT DISTINCT t.category, t.category
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FROM {$CFG->prefix}quiz_questions t,
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{$CFG->prefix}quiz_question_instances g,
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{$CFG->prefix}quiz q
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WHERE q.course = '$course' AND
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g.quiz = q.id AND
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g.question = t.id",false);
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if ($categories) {
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foreach ($categories as $key => $category) {
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$exist = get_record('quiz_categories','id', $key);
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//If the category doesn't exist
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if (!$exist) {
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//Build a new category
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$db_cat->course = $course;
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$db_cat->name = get_string('recreatedcategory','',$key);
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$db_cat->info = get_string('recreatedcategory','',$key);
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$db_cat->publish = 1;
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$db_cat->stamp = make_unique_id_code();
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//Insert the new category
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$catid = insert_record('quiz_categories',$db_cat);
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unset ($db_cat);
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if ($catid) {
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//Reasign orphaned questions to their new category
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set_field ('quiz_questions','category',$catid,'category',$key);
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}
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}
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}
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}
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}
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//Delete category ids from backup_ids table
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function delete_category_ids ($backup_unique_code) {
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global $CFG;
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$status = true;
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$status = execute_sql("DELETE FROM {$CFG->prefix}backup_ids
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WHERE backup_code = '$backup_unique_code'",false);
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return $status;
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}
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function quiz_backup_question_categories($bf,$preferences) {
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global $CFG;
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$status = true;
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//First, we get the used categories from backup_ids
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$categories = quiz_category_ids_by_backup ($preferences->backup_unique_code);
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//If we've categories
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if ($categories) {
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//Write start tag
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$status = fwrite($bf,start_tag("QUESTION_CATEGORIES",2,true));
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//Iterate over each category
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foreach ($categories as $cat) {
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//Start category
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$status = fwrite ($bf,start_tag("QUESTION_CATEGORY",3,true));
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//Get category data from quiz_categories
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$category = get_record ("quiz_categories","id",$cat->old_id);
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//Print category contents
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fwrite($bf,full_tag("ID",4,false,$category->id));
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fwrite($bf,full_tag("NAME",4,false,$category->name));
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fwrite($bf,full_tag("INFO",4,false,$category->info));
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fwrite($bf,full_tag("PUBLISH",4,false,$category->publish));
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fwrite($bf,full_tag("STAMP",4,false,$category->stamp));
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fwrite($bf,full_tag("PARENT",4,false,$category->parent));
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fwrite($bf,full_tag("SORTORDER",4,false,$category->sortorder));
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//Now, backup their questions
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$status = quiz_backup_question($bf,$preferences,$category->id);
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//End category
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$status = fwrite ($bf,end_tag("QUESTION_CATEGORY",3,true));
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}
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//Write end tag
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$status = fwrite ($bf,end_tag("QUESTION_CATEGORIES",2,true));
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}
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return $status;
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}
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//This function backups all the questions in selected category and their
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//asociated data
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function quiz_backup_question($bf,$preferences,$category) {
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global $CFG;
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$status = true;
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// We'll fetch the questions sorted by parent so that questions with no parents
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// (these are the ones which could be parents themselves) are backed up first. This
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// is important for the recoding of the parent field during the restore process
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$questions = get_records("quiz_questions","category",$category,"parent ASC, id");
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//If there are questions
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if ($questions) {
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//Write start tag
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$status = fwrite ($bf,start_tag("QUESTIONS",4,true));
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$counter = 0;
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//Iterate over each question
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foreach ($questions as $question) {
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//Start question
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$status = fwrite ($bf,start_tag("QUESTION",5,true));
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//Print question contents
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fwrite ($bf,full_tag("ID",6,false,$question->id));
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fwrite ($bf,full_tag("PARENT",6,false,$question->parent));
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fwrite ($bf,full_tag("NAME",6,false,$question->name));
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fwrite ($bf,full_tag("QUESTIONTEXT",6,false,$question->questiontext));
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fwrite ($bf,full_tag("QUESTIONTEXTFORMAT",6,false,$question->questiontextformat));
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fwrite ($bf,full_tag("IMAGE",6,false,$question->image));
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fwrite ($bf,full_tag("DEFAULTGRADE",6,false,$question->defaultgrade));
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fwrite ($bf,full_tag("PENALTY",6,false,$question->penalty));
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fwrite ($bf,full_tag("QTYPE",6,false,$question->qtype));
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fwrite ($bf,full_tag("LENGTH",6,false,$question->length));
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fwrite ($bf,full_tag("STAMP",6,false,$question->stamp));
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fwrite ($bf,full_tag("VERSION",6,false,$question->version));
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fwrite ($bf,full_tag("HIDDEN",6,false,$question->hidden));
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//Now, depending of the qtype, call one function or other
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if ($question->qtype == "1") {
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$status = quiz_backup_shortanswer($bf,$preferences,$question->id);
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} else if ($question->qtype == "2") {
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$status = quiz_backup_truefalse($bf,$preferences,$question->id);
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} else if ($question->qtype == "3") {
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$status = quiz_backup_multichoice($bf,$preferences,$question->id);
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} else if ($question->qtype == "4") {
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//Random question. Nothing to write.
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} else if ($question->qtype == "5") {
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$status = quiz_backup_match($bf,$preferences,$question->id);
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} else if ($question->qtype == "6") {
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$status = quiz_backup_randomsamatch($bf,$preferences,$question->id);
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} else if ($question->qtype == "7") {
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//Description question. Nothing to write.
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} else if ($question->qtype == "8") {
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$status = quiz_backup_numerical($bf,$preferences,$question->id);
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} else if ($question->qtype == "9") {
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$status = quiz_backup_multianswer($bf,$preferences,$question->id);
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} else if ($question->qtype == "10") {
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$status = quiz_backup_calculated($bf,$preferences,$question->id);
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} else if ($question->qtype == "11") {
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$status = quiz_backup_rqp($bf,$preferences,$question->id);
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} else if ($question->qtype == "12") {
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$status = quiz_backup_essay($bf,$preferences,$question->id);
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}
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//End question
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$status = fwrite ($bf,end_tag("QUESTION",5,true));
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//Do some output
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$counter++;
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if ($counter % 10 == 0) {
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echo ".";
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if ($counter % 200 == 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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//Write end tag
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$status = fwrite ($bf,end_tag("QUESTIONS",4,true));
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}
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return $status;
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}
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//This function backups the data in a truefalse question (qtype=2) and its
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//asociated data
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function quiz_backup_truefalse($bf,$preferences,$question) {
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global $CFG;
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$status = true;
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$truefalses = get_records("quiz_truefalse","question",$question,"id");
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//If there are truefalses
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if ($truefalses) {
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//Iterate over each truefalse
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foreach ($truefalses as $truefalse) {
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$status = fwrite ($bf,start_tag("TRUEFALSE",6,true));
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//Print truefalse contents
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fwrite ($bf,full_tag("TRUEANSWER",7,false,$truefalse->trueanswer));
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fwrite ($bf,full_tag("FALSEANSWER",7,false,$truefalse->falseanswer));
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$status = fwrite ($bf,end_tag("TRUEFALSE",6,true));
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}
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//Now print quiz_answers
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$status = quiz_backup_answers($bf,$preferences,$question);
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}
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return $status;
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}
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//This function backups the data in a shortanswer question (qtype=1) and its
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//asociated data
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function quiz_backup_shortanswer($bf,$preferences,$question,$level=6,$include_answers=true) {
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global $CFG;
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$status = true;
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$shortanswers = get_records("quiz_shortanswer","question",$question,"id");
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//If there are shortanswers
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if ($shortanswers) {
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//Iterate over each shortanswer
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foreach ($shortanswers as $shortanswer) {
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$status = fwrite ($bf,start_tag("SHORTANSWER",$level,true));
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//Print shortanswer contents
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fwrite ($bf,full_tag("ANSWERS",$level+1,false,$shortanswer->answers));
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fwrite ($bf,full_tag("USECASE",$level+1,false,$shortanswer->usecase));
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$status = fwrite ($bf,end_tag("SHORTANSWER",$level,true));
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}
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//Now print quiz_answers
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if ($include_answers) {
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$status = quiz_backup_answers($bf,$preferences,$question);
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}
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}
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return $status;
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}
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//This function backups the data in a multichoice question (qtype=3) and its
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//asociated data
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function quiz_backup_multichoice($bf,$preferences,$question,$level=6,$include_answers=true) {
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global $CFG;
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$status = true;
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$multichoices = get_records("quiz_multichoice","question",$question,"id");
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//If there are multichoices
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if ($multichoices) {
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//Iterate over each multichoice
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foreach ($multichoices as $multichoice) {
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$status = fwrite ($bf,start_tag("MULTICHOICE",$level,true));
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//Print multichoice contents
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fwrite ($bf,full_tag("LAYOUT",$level+1,false,$multichoice->layout));
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fwrite ($bf,full_tag("ANSWERS",$level+1,false,$multichoice->answers));
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fwrite ($bf,full_tag("SINGLE",$level+1,false,$multichoice->single));
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fwrite ($bf,full_tag("SHUFFLEANSWERS",$level+1,false,$randomsamatch->shuffleanswers));
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$status = fwrite ($bf,end_tag("MULTICHOICE",$level,true));
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}
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//Now print quiz_answers
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if ($include_answers) {
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$status = quiz_backup_answers($bf,$preferences,$question);
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}
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}
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return $status;
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}
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//This function backups the data in a randomsamatch question (qtype=6) and its
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//asociated data
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function quiz_backup_randomsamatch($bf,$preferences,$question) {
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global $CFG;
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$status = true;
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$randomsamatchs = get_records("quiz_randomsamatch","question",$question,"id");
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//If there are randomsamatchs
|
|
if ($randomsamatchs) {
|
|
//Iterate over each randomsamatch
|
|
foreach ($randomsamatchs as $randomsamatch) {
|
|
$status = fwrite ($bf,start_tag("RANDOMSAMATCH",6,true));
|
|
//Print randomsamatch contents
|
|
fwrite ($bf,full_tag("CHOOSE",7,false,$randomsamatch->choose));
|
|
fwrite ($bf,full_tag("SHUFFLEANSWERS",7,false,$randomsamatch->shuffleanswers));
|
|
$status = fwrite ($bf,end_tag("RANDOMSAMATCH",6,true));
|
|
}
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//This function backups the data in a match question (qtype=5) and its
|
|
//asociated data
|
|
function quiz_backup_match($bf,$preferences,$question) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$matchs = get_records("quiz_match_sub","question",$question,"id");
|
|
//If there are matchs
|
|
if ($matchs) {
|
|
$status = fwrite ($bf,start_tag("MATCHS",6,true));
|
|
//Iterate over each match
|
|
foreach ($matchs as $match) {
|
|
$status = fwrite ($bf,start_tag("MATCH",7,true));
|
|
//Print match contents
|
|
fwrite ($bf,full_tag("ID",8,false,$match->id));
|
|
fwrite ($bf,full_tag("QUESTIONTEXT",8,false,$match->questiontext));
|
|
fwrite ($bf,full_tag("ANSWERTEXT",8,false,$match->answertext));
|
|
fwrite ($bf,full_tag("SHUFFLEANSWERS",8,false,$randomsamatch->shuffleanswers));
|
|
$status = fwrite ($bf,end_tag("MATCH",7,true));
|
|
}
|
|
$status = fwrite ($bf,end_tag("MATCHS",6,true));
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//This function backups the data in a numerical question (qtype=8) and its
|
|
//asociated data
|
|
function quiz_backup_numerical($bf,$preferences,$question,$level=6) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$numericals = get_records("quiz_numerical","question",$question,"id");
|
|
//If there are numericals
|
|
if ($numericals) {
|
|
//Iterate over each numerical
|
|
foreach ($numericals as $numerical) {
|
|
$status = fwrite ($bf,start_tag("NUMERICAL",$level,true));
|
|
//Print numerical contents
|
|
fwrite ($bf,full_tag("ANSWER",$level+1,false,$numerical->answer));
|
|
fwrite ($bf,full_tag("TOLERANCE",$level+1,false,$numerical->tolerance));
|
|
//Now backup numerical_units
|
|
$status = quiz_backup_numerical_units($bf,$preferences,$question,7);
|
|
$status = fwrite ($bf,end_tag("NUMERICAL",$level,true));
|
|
}
|
|
//Now print quiz_answers
|
|
$status = quiz_backup_answers($bf,$preferences,$question);
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//This function backups the data in a multianswer question (qtype=9) and its
|
|
//asociated data
|
|
function quiz_backup_multianswer($bf,$preferences,$question) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$multianswers = get_records("quiz_multianswers","question",$question,"id");
|
|
//If there are multianswers
|
|
if ($multianswers) {
|
|
//Print multianswers header
|
|
$status = fwrite ($bf,start_tag("MULTIANSWERS",6,true));
|
|
//Iterate over each multianswer
|
|
foreach ($multianswers as $multianswer) {
|
|
$status = fwrite ($bf,start_tag("MULTIANSWER",7,true));
|
|
//Print multianswer contents
|
|
fwrite ($bf,full_tag("ID",8,false,$multianswer->id));
|
|
fwrite ($bf,full_tag("QUESTION",8,false,$multianswer->question));
|
|
fwrite ($bf,full_tag("SEQUENCE",8,false,$multianswer->sequence));
|
|
$status = fwrite ($bf,end_tag("MULTIANSWER",7,true));
|
|
}
|
|
//Print multianswers footer
|
|
$status = fwrite ($bf,end_tag("MULTIANSWERS",6,true));
|
|
//Now print quiz_answers
|
|
$status = quiz_backup_answers($bf,$preferences,$question);
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//This function backups the data in a calculated question (qtype=10) and its
|
|
//asociated data
|
|
function quiz_backup_calculated($bf,$preferences,$question,$level=6,$include_answers=true) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$calculateds = get_records("quiz_calculated","question",$question,"id");
|
|
//If there are calculated-s
|
|
if ($calculateds) {
|
|
//Iterate over each calculateds
|
|
foreach ($calculateds as $calculated) {
|
|
$status = $status &&fwrite ($bf,start_tag("CALCULATED",$level,true));
|
|
//Print calculated contents
|
|
fwrite ($bf,full_tag("ANSWER",$level+1,false,$calculated->answer));
|
|
fwrite ($bf,full_tag("TOLERANCE",$level+1,false,$calculated->tolerance));
|
|
fwrite ($bf,full_tag("TOLERANCETYPE",$level+1,false,$calculated->tolerancetype));
|
|
fwrite ($bf,full_tag("CORRECTANSWERLENGTH",$level+1,false,$calculated->correctanswerlength));
|
|
fwrite ($bf,full_tag("CORRECTANSWERFORMAT",$level+1,false,$calculated->correctanswerformat));
|
|
//Now backup numerical_units
|
|
$status = quiz_backup_numerical_units($bf,$preferences,$question,7);
|
|
//Now backup required dataset definitions and items...
|
|
$status = quiz_backup_datasets($bf,$preferences,$question,7);
|
|
//End calculated data
|
|
$status = $status &&fwrite ($bf,end_tag("CALCULATED",$level,true));
|
|
}
|
|
//Now print quiz_answers
|
|
if ($include_answers) {
|
|
$status = quiz_backup_answers($bf,$preferences,$question);
|
|
}
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//This function backups the data in an rqp question (qtype=11) and its
|
|
//asociated data
|
|
function quiz_backup_rqp($bf,$preferences,$question) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$rqp = get_records("quiz_rqp","question",$question,"id");
|
|
//If there are rqps
|
|
if ($rqps) {
|
|
//Iterate over each rqp
|
|
foreach ($rqps as $rqp) {
|
|
$status = fwrite ($bf,start_tag("RQP",6,true));
|
|
//Print rqp contents
|
|
fwrite ($bf,full_tag("TYPE",7,false,$rqp->type));
|
|
fwrite ($bf,full_tag("SOURCE",7,false,$rqp->source));
|
|
fwrite ($bf,full_tag("FORMAT",7,false,$rqp->format));
|
|
fwrite ($bf,full_tag("FLAGS",7,false,$rqp->flags));
|
|
fwrite ($bf,full_tag("MAXSCORE",7,false,$rqp->maxscore));
|
|
$status = fwrite ($bf,end_tag("RQP",6,true));
|
|
}
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//This function backups the data in an essay question (qtype=12) and its
|
|
//asociated data
|
|
function quiz_backup_essay($bf,$preferences,$question,$level=6) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$essays = get_records('quiz_essay', 'question', $question, "id");
|
|
//If there are essays
|
|
if ($essays) {
|
|
//Iterate over each essay
|
|
foreach ($essays as $essay) {
|
|
$status = fwrite ($bf,start_tag("ESSAY",$level,true));
|
|
//Print essay contents
|
|
fwrite ($bf,full_tag("ANSWER",$level+1,false,$essay->answer));
|
|
$status = fwrite ($bf,end_tag("ESSAY",$level,true));
|
|
}
|
|
//Now print quiz_answers
|
|
$status = quiz_backup_answers($bf,$preferences,$question);
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
|
|
//This function backups the answers data in some question types
|
|
//(truefalse, shortanswer,multichoice,numerical,calculated)
|
|
function quiz_backup_answers($bf,$preferences,$question) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$answers = get_records("quiz_answers","question",$question,"id");
|
|
//If there are answers
|
|
if ($answers) {
|
|
$status = fwrite ($bf,start_tag("ANSWERS",6,true));
|
|
//Iterate over each answer
|
|
foreach ($answers as $answer) {
|
|
$status = fwrite ($bf,start_tag("ANSWER",7,true));
|
|
//Print answer contents
|
|
fwrite ($bf,full_tag("ID",8,false,$answer->id));
|
|
fwrite ($bf,full_tag("ANSWER_TEXT",8,false,$answer->answer));
|
|
fwrite ($bf,full_tag("FRACTION",8,false,$answer->fraction));
|
|
fwrite ($bf,full_tag("FEEDBACK",8,false,$answer->feedback));
|
|
$status = fwrite ($bf,end_tag("ANSWER",7,true));
|
|
}
|
|
$status = fwrite ($bf,end_tag("ANSWERS",6,true));
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//This function backups quiz_numerical_units from different question types
|
|
function quiz_backup_numerical_units($bf,$preferences,$question,$level=7) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$numerical_units = get_records("quiz_numerical_units","question",$question,"id");
|
|
//If there are numericals_units
|
|
if ($numerical_units) {
|
|
$status = fwrite ($bf,start_tag("NUMERICAL_UNITS",$level,true));
|
|
//Iterate over each numerical_unit
|
|
foreach ($numerical_units as $numerical_unit) {
|
|
$status = fwrite ($bf,start_tag("NUMERICAL_UNIT",$level+1,true));
|
|
//Print numerical_unit contents
|
|
fwrite ($bf,full_tag("MULTIPLIER",$level+2,false,$numerical_unit->multiplier));
|
|
fwrite ($bf,full_tag("UNIT",$level+2,false,$numerical_unit->unit));
|
|
//Now backup numerical_units
|
|
$status = fwrite ($bf,end_tag("NUMERICAL_UNIT",$level+1,true));
|
|
}
|
|
$status = fwrite ($bf,end_tag("NUMERICAL_UNITS",$level,true));
|
|
}
|
|
|
|
return $status;
|
|
|
|
}
|
|
|
|
//This function backups dataset_definitions (via question_datasets) from different question types
|
|
function quiz_backup_datasets($bf,$preferences,$question,$level=7) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
//First, we get the used datasets for this question
|
|
$question_datasets = get_records("quiz_question_datasets","question",$question,"id");
|
|
//If there are question_datasets
|
|
if ($question_datasets) {
|
|
$status = $status &&fwrite ($bf,start_tag("DATASET_DEFINITIONS",$level,true));
|
|
//Iterate over each question_dataset
|
|
foreach ($question_datasets as $question_dataset) {
|
|
$def = NULL;
|
|
//Get dataset_definition
|
|
if ($def = get_record("quiz_dataset_definitions","id",$question_dataset->datasetdefinition)) {;
|
|
$status = $status &&fwrite ($bf,start_tag("DATASET_DEFINITION",$level+1,true));
|
|
//Print question_dataset contents
|
|
fwrite ($bf,full_tag("CATEGORY",$level+2,false,$def->category));
|
|
fwrite ($bf,full_tag("NAME",$level+2,false,$def->name));
|
|
fwrite ($bf,full_tag("TYPE",$level+2,false,$def->type));
|
|
fwrite ($bf,full_tag("OPTIONS",$level+2,false,$def->options));
|
|
fwrite ($bf,full_tag("ITEMCOUNT",$level+2,false,$def->itemcount));
|
|
//Now backup dataset_entries
|
|
$status = quiz_backup_dataset_items($bf,$preferences,$def->id,$level+2);
|
|
//End dataset definition
|
|
$status = $status &&fwrite ($bf,end_tag("DATASET_DEFINITION",$level+1,true));
|
|
}
|
|
}
|
|
$status = $status &&fwrite ($bf,end_tag("DATASET_DEFINITIONS",$level,true));
|
|
}
|
|
|
|
return $status;
|
|
|
|
}
|
|
|
|
//This function backups datases_items from dataset_definitions
|
|
function quiz_backup_dataset_items($bf,$preferences,$datasetdefinition,$level=9) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
//First, we get the datasets_items for this dataset_definition
|
|
$dataset_items = get_records("quiz_dataset_items","definition",$datasetdefinition,"id");
|
|
//If there are dataset_items
|
|
if ($dataset_items) {
|
|
$status = $status &&fwrite ($bf,start_tag("DATASET_ITEMS",$level,true));
|
|
//Iterate over each dataset_item
|
|
foreach ($dataset_items as $dataset_item) {
|
|
$status = $status &&fwrite ($bf,start_tag("DATASET_ITEM",$level+1,true));
|
|
//Print question_dataset contents
|
|
fwrite ($bf,full_tag("NUMBER",$level+2,false,$dataset_item->number));
|
|
fwrite ($bf,full_tag("VALUE",$level+2,false,$dataset_item->value));
|
|
//End dataset definition
|
|
$status = $status &&fwrite ($bf,end_tag("DATASET_ITEM",$level+1,true));
|
|
}
|
|
$status = $status &&fwrite ($bf,end_tag("DATASET_ITEMS",$level,true));
|
|
}
|
|
|
|
return $status;
|
|
|
|
}
|
|
|
|
|
|
function quiz_backup_one_mod($bf,$preferences,$quiz) {
|
|
$status = true;
|
|
|
|
if (is_numeric($quiz)) {
|
|
$quiz = get_record('quiz','id',$quiz);
|
|
}
|
|
|
|
//Start mod
|
|
fwrite ($bf,start_tag("MOD",3,true));
|
|
//Print quiz data
|
|
fwrite ($bf,full_tag("ID",4,false,$quiz->id));
|
|
fwrite ($bf,full_tag("MODTYPE",4,false,"quiz"));
|
|
fwrite ($bf,full_tag("NAME",4,false,$quiz->name));
|
|
fwrite ($bf,full_tag("INTRO",4,false,$quiz->intro));
|
|
fwrite ($bf,full_tag("TIMEOPEN",4,false,$quiz->timeopen));
|
|
fwrite ($bf,full_tag("TIMECLOSE",4,false,$quiz->timeclose));
|
|
fwrite ($bf,full_tag("OPTIONFLAGS",4,false,$quiz->optionflags));
|
|
fwrite ($bf,full_tag("PENALTYSCHEME",4,false,$quiz->penaltyscheme));
|
|
fwrite ($bf,full_tag("ATTEMPTS_NUMBER",4,false,$quiz->attempts));
|
|
fwrite ($bf,full_tag("ATTEMPTONLAST",4,false,$quiz->attemptonlast));
|
|
fwrite ($bf,full_tag("GRADEMETHOD",4,false,$quiz->grademethod));
|
|
fwrite ($bf,full_tag("DECIMALPOINTS",4,false,$quiz->decimalpoints));
|
|
fwrite ($bf,full_tag("REVIEW",4,false,$quiz->review));
|
|
fwrite ($bf,full_tag("QUESTIONSPERPAGE",4,false,$quiz->questionsperpage));
|
|
fwrite ($bf,full_tag("SHUFFLEQUESTIONS",4,false,$quiz->shufflequestions));
|
|
fwrite ($bf,full_tag("SHUFFLEANSWERS",4,false,$quiz->shuffleanswers));
|
|
fwrite ($bf,full_tag("QUESTIONS",4,false,$quiz->questions));
|
|
fwrite ($bf,full_tag("SUMGRADES",4,false,$quiz->sumgrades));
|
|
fwrite ($bf,full_tag("GRADE",4,false,$quiz->grade));
|
|
fwrite ($bf,full_tag("TIMECREATED",4,false,$quiz->timecreated));
|
|
fwrite ($bf,full_tag("TIMEMODIFIED",4,false,$quiz->timemodified));
|
|
fwrite ($bf,full_tag("TIMELIMIT",4,false,$quiz->timelimit));
|
|
fwrite ($bf,full_tag("PASSWORD",4,false,$quiz->password));
|
|
fwrite ($bf,full_tag("SUBNET",4,false,$quiz->subnet));
|
|
fwrite ($bf,full_tag("POPUP",4,false,$quiz->popup));
|
|
fwrite ($bf,full_tag("DELAY1",4,false,$quiz->delay1));
|
|
fwrite ($bf,full_tag("DELAY2",4,false,$quiz->delay2));
|
|
//Now we print to xml question_instances (Course Level)
|
|
$status = backup_quiz_question_instances($bf,$preferences,$quiz->id);
|
|
//Now we print to xml question_versions (Course Level)
|
|
$status = backup_quiz_question_versions($bf,$preferences,$quiz->id);
|
|
//if we've selected to backup users info, then execute:
|
|
// - backup_quiz_grades
|
|
// - backup_quiz_attempts
|
|
if (backup_userdata_selected($preferences,'quiz',$quiz->id) && $status) {
|
|
$status = backup_quiz_grades($bf,$preferences,$quiz->id);
|
|
if ($status) {
|
|
$status = backup_quiz_attempts($bf,$preferences,$quiz->id);
|
|
}
|
|
}
|
|
//End mod
|
|
$status = fwrite ($bf,end_tag("MOD",3,true));
|
|
|
|
return $status;
|
|
}
|
|
|
|
|
|
//STEP 2. Backup quizzes and associated structures
|
|
// (course dependent)
|
|
function quiz_backup_mods($bf,$preferences) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
//Iterate over quiz table
|
|
$quizzes = get_records ("quiz","course",$preferences->backup_course,"id");
|
|
if ($quizzes) {
|
|
foreach ($quizzes as $quiz) {
|
|
if (backup_mod_selected($preferences,'quiz',$quiz->id)) {
|
|
$status = quiz_backup_one_mod($bf,$preferences,$quiz);
|
|
}
|
|
}
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//Backup quiz_question_instances contents (executed from quiz_backup_mods)
|
|
function backup_quiz_question_instances ($bf,$preferences,$quiz) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$quiz_question_instances = get_records("quiz_question_instances","quiz",$quiz,"id");
|
|
//If there are question_instances
|
|
if ($quiz_question_instances) {
|
|
//Write start tag
|
|
$status = fwrite ($bf,start_tag("QUESTION_INSTANCES",4,true));
|
|
//Iterate over each question_instance
|
|
foreach ($quiz_question_instances as $que_ins) {
|
|
//Start question instance
|
|
$status = fwrite ($bf,start_tag("QUESTION_INSTANCE",5,true));
|
|
//Print question_instance contents
|
|
fwrite ($bf,full_tag("ID",6,false,$que_ins->id));
|
|
fwrite ($bf,full_tag("QUESTION",6,false,$que_ins->question));
|
|
fwrite ($bf,full_tag("GRADE",6,false,$que_ins->grade));
|
|
//End question instance
|
|
$status = fwrite ($bf,end_tag("QUESTION_INSTANCE",5,true));
|
|
}
|
|
//Write end tag
|
|
$status = fwrite ($bf,end_tag("QUESTION_INSTANCES",4,true));
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//Backup quiz_question_versions contents (executed from quiz_backup_mods)
|
|
function backup_quiz_question_versions ($bf,$preferences,$quiz) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$quiz_question_versions = get_records("quiz_question_versions","quiz",$quiz,"id");
|
|
//If there are question_versions
|
|
if ($quiz_question_versions) {
|
|
//Write start tag
|
|
$status = fwrite ($bf,start_tag("QUESTION_VERSIONS",4,true));
|
|
//Iterate over each question_version
|
|
foreach ($quiz_question_versions as $que_ver) {
|
|
//Start question version
|
|
$status = fwrite ($bf,start_tag("QUESTION_VERSION",5,true));
|
|
//Print question_version contents
|
|
fwrite ($bf,full_tag("ID",6,false,$que_ver->id));
|
|
fwrite ($bf,full_tag("OLDQUESTION",6,false,$que_ver->oldquestion));
|
|
fwrite ($bf,full_tag("NEWQUESTION",6,false,$que_ver->newquestion));
|
|
fwrite ($bf,full_tag("USERID",6,false,$que_ver->userid));
|
|
fwrite ($bf,full_tag("TIMESTAMP",6,false,$que_ver->timestamp));
|
|
//End question version
|
|
$status = fwrite ($bf,end_tag("QUESTION_VERSION",5,true));
|
|
}
|
|
//Write end tag
|
|
$status = fwrite ($bf,end_tag("QUESTION_VERSIONS",4,true));
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
|
|
//Backup quiz_grades contents (executed from quiz_backup_mods)
|
|
function backup_quiz_grades ($bf,$preferences,$quiz) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$quiz_grades = get_records("quiz_grades","quiz",$quiz,"id");
|
|
//If there are grades
|
|
if ($quiz_grades) {
|
|
//Write start tag
|
|
$status = fwrite ($bf,start_tag("GRADES",4,true));
|
|
//Iterate over each grade
|
|
foreach ($quiz_grades as $gra) {
|
|
//Start grade
|
|
$status = fwrite ($bf,start_tag("GRADE",5,true));
|
|
//Print grade contents
|
|
fwrite ($bf,full_tag("ID",6,false,$gra->id));
|
|
fwrite ($bf,full_tag("USERID",6,false,$gra->userid));
|
|
fwrite ($bf,full_tag("GRADEVAL",6,false,$gra->grade));
|
|
fwrite ($bf,full_tag("TIMEMODIFIED",6,false,$gra->timemodified));
|
|
//End question grade
|
|
$status = fwrite ($bf,end_tag("GRADE",5,true));
|
|
}
|
|
//Write end tag
|
|
$status = fwrite ($bf,end_tag("GRADES",4,true));
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//Backup quiz_attempts contents (executed from quiz_backup_mods)
|
|
function backup_quiz_attempts ($bf,$preferences,$quiz) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$quiz_attempts = get_records("quiz_attempts","quiz",$quiz,"id");
|
|
//If there are attempts
|
|
if ($quiz_attempts) {
|
|
//Write start tag
|
|
$status = fwrite ($bf,start_tag("ATTEMPTS",4,true));
|
|
//Iterate over each attempt
|
|
foreach ($quiz_attempts as $attempt) {
|
|
//Start attempt
|
|
$status = fwrite ($bf,start_tag("ATTEMPT",5,true));
|
|
//Print attempt contents
|
|
fwrite ($bf,full_tag("ID",6,false,$attempt->id));
|
|
fwrite ($bf,full_tag("UNIQUEID",6,false,$attempt->uniqueid));
|
|
fwrite ($bf,full_tag("USERID",6,false,$attempt->userid));
|
|
fwrite ($bf,full_tag("ATTEMPTNUM",6,false,$attempt->attempt));
|
|
fwrite ($bf,full_tag("SUMGRADES",6,false,$attempt->sumgrades));
|
|
fwrite ($bf,full_tag("TIMESTART",6,false,$attempt->timestart));
|
|
fwrite ($bf,full_tag("TIMEFINISH",6,false,$attempt->timefinish));
|
|
fwrite ($bf,full_tag("TIMEMODIFIED",6,false,$attempt->timemodified));
|
|
fwrite ($bf,full_tag("LAYOUT",6,false,$attempt->layout));
|
|
fwrite ($bf,full_tag("PREVIEW",6,false,$attempt->preview));
|
|
//Now write to xml the states (in this attempt)
|
|
$status = backup_quiz_states ($bf,$preferences,$attempt->uniqueid);
|
|
//End attempt
|
|
$status = fwrite ($bf,end_tag("ATTEMPT",5,true));
|
|
}
|
|
//Write end tag
|
|
$status = fwrite ($bf,end_tag("ATTEMPTS",4,true));
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//Backup quiz_states contents (executed from backup_quiz_attempts)
|
|
function backup_quiz_states ($bf,$preferences,$attempt) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$quiz_states = get_records("quiz_states","attempt",$attempt,"id");
|
|
//If there are states
|
|
if ($quiz_states) {
|
|
//Write start tag
|
|
$status = fwrite ($bf,start_tag("STATES",6,true));
|
|
//Iterate over each state
|
|
foreach ($quiz_states as $state) {
|
|
//Start state
|
|
$status = fwrite ($bf,start_tag("STATE",7,true));
|
|
//Print state contents
|
|
fwrite ($bf,full_tag("ID",8,false,$state->id));
|
|
fwrite ($bf,full_tag("QUESTION",8,false,$state->question));
|
|
fwrite ($bf,full_tag("ORIGINALQUESTION",8,false,$state->originalquestion));
|
|
fwrite ($bf,full_tag("SEQ_NUMBER",8,false,$state->seq_number));
|
|
fwrite ($bf,full_tag("ANSWER",8,false,$state->answer));
|
|
fwrite ($bf,full_tag("TIMESTAMP",8,false,$state->timestamp));
|
|
fwrite ($bf,full_tag("EVENT",8,false,$state->event));
|
|
fwrite ($bf,full_tag("GRADE",8,false,$state->grade));
|
|
fwrite ($bf,full_tag("RAW_GRADE",8,false,$state->raw_grade));
|
|
fwrite ($bf,full_tag("PENALTY",8,false,$state->penalty));
|
|
// now back up question type specific state information
|
|
$status = backup_quiz_rqp_state ($bf,$preferences,$state->id);
|
|
$status = backup_quiz_essay_state ($bf,$preferences,$state->id);
|
|
//End state
|
|
$status = fwrite ($bf,end_tag("STATE",7,true));
|
|
}
|
|
//Write end tag
|
|
$status = fwrite ($bf,end_tag("STATES",6,true));
|
|
}
|
|
$question_sessions = get_records("question_sessions","attemptid",$attempt,"id");
|
|
//If there are newest_states
|
|
if ($question_sessions) {
|
|
//Write start tag
|
|
$status = fwrite ($bf,start_tag("NEWEST_STATES",6,true));
|
|
//Iterate over each newest_state
|
|
foreach ($question_sessions as $newest_state) {
|
|
//Start newest_state
|
|
$status = fwrite ($bf,start_tag("NEWEST_STATE",7,true));
|
|
//Print newest_state contents
|
|
fwrite ($bf,full_tag("ID",8,false,$newest_state->id));
|
|
fwrite ($bf,full_tag("QUESTIONID",8,false,$newest_state->questionid));
|
|
fwrite ($bf,full_tag("NEWEST",8,false,$newest_state->newest));
|
|
fwrite ($bf,full_tag("NEWGRADED",8,false,$newest_state->newgraded));
|
|
fwrite ($bf,full_tag("SUMPENALTY",8,false,$newest_state->sumpenalty));
|
|
//End newest_state
|
|
$status = fwrite ($bf,end_tag("NEWEST_STATE",7,true));
|
|
}
|
|
//Write end tag
|
|
$status = fwrite ($bf,end_tag("NEWEST_STATES",6,true));
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
function quiz_check_backup_mods_instances($instance,$backup_unique_code) {
|
|
// the keys in this array need to be unique as they get merged...
|
|
$info[$instance->id.'0'][0] = '<b>'.$instance->name.'</b>';
|
|
$info[$instance->id.'0'][1] = '';
|
|
|
|
//Categories
|
|
$info[$instance->id.'1'][0] = get_string("categories","quiz");
|
|
if ($ids = quiz_category_ids_by_backup ($backup_unique_code)) {
|
|
$info[$instance->id.'1'][1] = count($ids);
|
|
} else {
|
|
$info[$instance->id.'1'][1] = 0;
|
|
}
|
|
//Questions
|
|
$info[$instance->id.'2'][0] = get_string("questionsinclhidden","quiz");
|
|
if ($ids = quiz_question_ids_by_backup ($backup_unique_code)) {
|
|
$info[$instance->id.'2'][1] = count($ids);
|
|
} else {
|
|
$info[$instance->id.'2'][1] = 0;
|
|
}
|
|
|
|
//Now, if requested, the user_data
|
|
if (!empty($instance->userdata)) {
|
|
//Grades
|
|
$info[$instance->id.'3'][0] = get_string("grades");
|
|
if ($ids = quiz_grade_ids_by_instance ($instance->id)) {
|
|
$info[$instance->id.'3'][1] = count($ids);
|
|
} else {
|
|
$info[$instance->id.'3'][1] = 0;
|
|
}
|
|
}
|
|
return $info;
|
|
}
|
|
|
|
//Backup quiz_rqp_state contents (executed from backup_quiz_states)
|
|
function backup_quiz_rqp_state ($bf,$preferences,$state) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$rqp_state = get_record("quiz_rqp_states","stateid",$state);
|
|
//If there is a state
|
|
if ($rqp_state) {
|
|
//Write start tag
|
|
$status = fwrite ($bf,start_tag("RQP_STATE",8,true));
|
|
//Print state contents
|
|
fwrite ($bf,full_tag("RESPONSES",9,false,$rqp_state->responses));
|
|
fwrite ($bf,full_tag("PERSISTENT_DATA",9,false,$rqp_state->persistent_data));
|
|
fwrite ($bf,full_tag("TEMPLATE_VARS",9,false,$rqp_state->template_vars));
|
|
//Write end tag
|
|
$status = fwrite ($bf,end_tag("RQP_STATE",8,true));
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
//Backup quiz_essay_state contents (executed from backup_quiz_states)
|
|
function backup_quiz_essay_state ($bf,$preferences,$state) {
|
|
|
|
global $CFG;
|
|
|
|
$status = true;
|
|
|
|
$essay_state = get_record("quiz_essay_states", "stateid", $state);
|
|
//If there is a state
|
|
if ($essay_state) {
|
|
//Write start tag
|
|
$status = fwrite ($bf,start_tag("ESSAY_STATE",8,true));
|
|
//Print state contents
|
|
fwrite ($bf,full_tag("GRADED",9,false,$essay_state->graded));
|
|
fwrite ($bf,full_tag("FRACTION",9,false,$essay_state->fraction));
|
|
fwrite ($bf,full_tag("RESPONSE",9,false,$essay_state->response));
|
|
//Write end tag
|
|
$status = fwrite ($bf,end_tag("ESSAY_STATE",8,true));
|
|
}
|
|
return $status;
|
|
}
|
|
|
|
////Return an array of info (name,value)
|
|
/// $instances is an array with key = instanceid, value = object (name,id,userdata)
|
|
function quiz_check_backup_mods($course,$user_data= false,$backup_unique_code,$instances=null) {
|
|
|
|
//Deletes data from mdl_backup_ids (categories section)
|
|
delete_category_ids ($backup_unique_code);
|
|
//Create date into mdl_backup_ids (categories section)
|
|
insert_category_ids ($course,$backup_unique_code,$instances);
|
|
if (!empty($instances) && is_array($instances) && count($instances)) {
|
|
$info = array();
|
|
foreach ($instances as $id => $instance) {
|
|
$info += quiz_check_backup_mods_instances($instance,$backup_unique_code);
|
|
}
|
|
return $info;
|
|
}
|
|
//First the course data
|
|
$info[0][0] = get_string("modulenameplural","quiz");
|
|
if ($ids = quiz_ids ($course)) {
|
|
$info[0][1] = count($ids);
|
|
} else {
|
|
$info[0][1] = 0;
|
|
}
|
|
//Categories
|
|
$info[1][0] = get_string("categories","quiz");
|
|
if ($ids = quiz_category_ids_by_backup ($backup_unique_code)) {
|
|
$info[1][1] = count($ids);
|
|
} else {
|
|
$info[1][1] = 0;
|
|
}
|
|
//Questions
|
|
$info[2][0] = get_string("questions","quiz");
|
|
if ($ids = quiz_question_ids_by_backup ($backup_unique_code)) {
|
|
$info[2][1] = count($ids);
|
|
} else {
|
|
$info[2][1] = 0;
|
|
}
|
|
|
|
//Now, if requested, the user_data
|
|
if ($user_data) {
|
|
//Grades
|
|
$info[3][0] = get_string("grades");
|
|
if ($ids = quiz_grade_ids_by_course ($course)) {
|
|
$info[3][1] = count($ids);
|
|
} else {
|
|
$info[3][1] = 0;
|
|
}
|
|
}
|
|
|
|
return $info;
|
|
}
|
|
|
|
//Return a content encoded to support interactivities linking. Every module
|
|
//should have its own. They are called automatically from the backup procedure.
|
|
function quiz_encode_content_links ($content,$preferences) {
|
|
|
|
global $CFG;
|
|
|
|
$base = preg_quote($CFG->wwwroot,"/");
|
|
|
|
//Link to the list of quizs
|
|
$buscar="/(".$base."\/mod\/quiz\/index.php\?id\=)([0-9]+)/";
|
|
$result= preg_replace($buscar,'$@QUIZINDEX*$2@$',$content);
|
|
|
|
//Link to quiz view by moduleid
|
|
$buscar="/(".$base."\/mod\/quiz\/view.php\?id\=)([0-9]+)/";
|
|
$result= preg_replace($buscar,'$@QUIZVIEWBYID*$2@$',$result);
|
|
|
|
return $result;
|
|
}
|
|
|
|
// INTERNAL FUNCTIONS. BASED IN THE MOD STRUCTURE
|
|
|
|
//Returns an array of quiz id
|
|
function quiz_ids ($course) {
|
|
|
|
global $CFG;
|
|
|
|
return get_records_sql ("SELECT a.id, a.course
|
|
FROM {$CFG->prefix}quiz a
|
|
WHERE a.course = '$course'");
|
|
}
|
|
|
|
//Returns an array of categories id
|
|
function quiz_category_ids_by_backup ($backup_unique_code) {
|
|
|
|
global $CFG;
|
|
|
|
return get_records_sql ("SELECT a.old_id, a.backup_code
|
|
FROM {$CFG->prefix}backup_ids a
|
|
WHERE a.backup_code = '$backup_unique_code' AND
|
|
a.table_name = 'quiz_categories'");
|
|
}
|
|
|
|
function quiz_question_ids_by_backup ($backup_unique_code) {
|
|
|
|
global $CFG;
|
|
|
|
return get_records_sql ("SELECT q.id, q.category
|
|
FROM {$CFG->prefix}backup_ids a,
|
|
{$CFG->prefix}quiz_questions q
|
|
WHERE a.backup_code = '$backup_unique_code' AND
|
|
q.category = a.old_id AND
|
|
a.table_name = 'quiz_categories'");
|
|
}
|
|
|
|
function quiz_grade_ids_by_course ($course) {
|
|
|
|
global $CFG;
|
|
|
|
return get_records_sql ("SELECT g.id, g.quiz
|
|
FROM {$CFG->prefix}quiz a,
|
|
{$CFG->prefix}quiz_grades g
|
|
WHERE a.course = '$course' and
|
|
g.quiz = a.id");
|
|
}
|
|
|
|
function quiz_grade_ids_by_instance($instanceid) {
|
|
|
|
global $CFG;
|
|
|
|
return get_records_sql ("SELECT g.id, g.quiz
|
|
FROM {$CFG->prefix}quiz_grades g
|
|
WHERE g.quiz = $instanceid");
|
|
}
|
|
|
|
?>
|