// Create missing categories and reasign orphaned questions.
fix_orphaned_questions($course);
-
- // First, all categories from this course.
+ // First, ALL categories from this course.
$status = execute_sql("INSERT INTO {$CFG->prefix}backup_ids
(backup_code, table_name, old_id, info)
SELECT '$backup_unique_code', 'question_categories', qc.id, ''
FROM {$CFG->prefix}question_categories qc
WHERE qc.course = $course", false);
-
+
// Then published categories from other courses used by the quizzes we are backing up.
- $from = "{$CFG->prefix}quiz quiz,";
- $where = "AND quiz.course = '$course'
- AND qqi.quiz = quiz.id";
if (!empty($instances) && is_array($instances) && count($instances)) {
- $from = '';
- $where = 'AND qqi.quiz IN ('.implode(',',array_keys($instances)).')';
+ $questionselectsqlfrom = '';
+ $questionselectsqlwhere = 'AND qqi.quiz IN ('.implode(',',array_keys($instances)).')';
+ } else {
+ $questionselectsqlfrom = "{$CFG->prefix}quiz quiz,";
+ $questionselectsqlwhere = "AND quiz.course = '$course'
+ AND qqi.quiz = quiz.id";
}
- $categories = get_records_sql("
+ $categoriesinothercourses = get_records_sql("
SELECT id, parent, 0 AS childrendone
FROM {$CFG->prefix}question_categories
WHERE course <> $course
AND id IN (
- SELECT DISTINCT question.category
+ SELECT DISTINCT question.category
FROM {$CFG->prefix}question question,
- $from
+ $questionselectsqlfrom
{$CFG->prefix}quiz_question_instances qqi
WHERE qqi.question = question.id
- $where
+ $questionselectsqlwhere
)", false);
- if (!$categories) {
- $categories = array();
+ if (!$categoriesinothercourses) {
+ $categoriesinothercourses = array();
}
-
+
// Add the parent categories, of these categories up to the top of the category tree.
- foreach ($categories as $category) {
+ foreach ($categoriesinothercourses as $category) {
while ($category->parent != 0) {
- if (array_key_exists($category->parent, $categories)) {
+ if (array_key_exists($category->parent, $categoriesinothercourses)) {
// Parent category already on the list.
break;
}
$currentid = $category->id;
$category = get_record('question_categories', 'id', $category->parent, '', '', '', '', 'id, parent, 0 AS childrendone');
if ($category) {
- $categories[$category->id] = $category;
+ $categoriesinothercourses[$category->id] = $category;
} else {
// Parent not found: this indicates an error, but just fix it.
set_field('question_categories', 'parent', 0, 'id', $currentid);
}
}
}
-
- // Now we look for categories from other courses containing random questions
- // in our quiz that select from the category and its subcategories. That implies
+
+ // Now we look for random questions used in our quizzes
+ // that select from subcategories in other courses. That implies
// those subcategories also need to be backed up. (The categories themselves
// and their parents will already have been included.)
$categorieswithrandom = get_records_sql("
SELECT DISTINCT question.category AS id
FROM {$CFG->prefix}quiz_question_instances qqi,
- $from
+ $questionselectsqlfrom
{$CFG->prefix}question question
WHERE question.id = qqi.question
AND question.qtype = '" . RANDOM . "'
AND question.questiontext = '1'
- $where
+ $questionselectsqlwhere
");
if ($categorieswithrandom) {
foreach ($categorieswithrandom as $category) {
- $status = quiz_backup_add_sub_categories($categories, $category->id);
+ if (isset($categoriesinothercourses[$category->id])){
+ $status = quiz_backup_add_sub_categories($categoriesinothercourses, $category->id);
+ }
}
}
// Finally, add all these extra categories to the backup_ids table.
- foreach ($categories as $category) {
+ foreach ($categoriesinothercourses as $category) {
$status = $status && backup_putid($backup_unique_code, 'question_categories', $category->id, 0);
}
-
+
return $status;
}
-
+
/**
* Helper function adding the id of all the subcategories of a category to an array.
*/
$categories[$categoryid]->childrendone = 1;
return $status;
}
-
+
//This function is used to detect orphaned questions (pointing to a
//non existing category) and to recreate such category. This function
if (is_numeric($quiz)) {
$quiz = get_record('quiz','id',$quiz);
}
-
+
//Start mod
fwrite ($bf,start_tag("MOD",3,true));
//Print quiz data
}
//End mod
$status = fwrite ($bf,end_tag("MOD",3,true));
-
+
return $status;
}
if ($quiz_feedback) {
// Write start tag.
$status = $status & fwrite($bf,start_tag('FEEDBACKS', 4, true));
-
+
// Iterate over each question_instance.
foreach ($quiz_feedback as $feedback) {
-
+
//Start feedback instance
$status = $status & fwrite($bf, start_tag('FEEDBACK',5,true));
-
+
//Print question_instance contents.
$status = $status & fwrite($bf, full_tag('ID', 6, false, $feedback->id));
$status = $status & fwrite($bf, full_tag('QUIZID', 6, false, $feedback->quizid));
$status = $status & fwrite($bf, full_tag('FEEDBACKTEXT', 6, false, $feedback->feedbacktext));
$status = $status & fwrite($bf, full_tag('MINGRADE', 6, false, $feedback->mingrade));
$status = $status & fwrite($bf, full_tag('MAXGRADE', 6, false, $feedback->maxgrade));
-
+
// End feedback instance.
$status = $status & fwrite($bf, end_tag('FEEDBACK', 5, true));
}
-
+
// Write end tag.
$status = $status & fwrite($bf, end_tag('FEEDBACKS', 4, true));
}
return $status;
}
-
+
//Backup quiz_question_versions contents (executed from quiz_backup_mods)
function backup_quiz_question_versions ($bf,$preferences,$quiz) {
$status = true;
}
return $info;
}
-
+
////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) {
projects / moodle.git / commitdiff