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admin MDL-21011 fix a bug with the course auto-sort

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This commit is contained in:
Andrew Davis
2010-08-25 00:59:40 +00:00
parent fd87f11c24
commit eb8f8daecb
1 changed files with 17 additions and 4 deletions
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course/category.php
+17 -4
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@@ -57,15 +57,28 @@
if ($resort and confirm_sesskey()) {
if ($courses = get_courses($category->id, "fullname ASC", 'c.id,c.fullname,c.sortorder')) {
// move it off the range
$count = get_record_sql('SELECT MIN(sortorder) AS min, 1
$sortorderresult = get_record_sql('SELECT MIN(sortorder) AS min, 1
FROM ' . $CFG->prefix . 'course WHERE category=' . $category->id);
$count = $count->min;
$sortordermin = $sortorderresult->min;
$sortorderresult = get_record_sql('SELECT MAX(sortorder) AS max, 1
FROM ' . $CFG->prefix . 'course WHERE category=' . $category->id);
$sortorder = $sortordermax = $sortorderresult->max + 100;
//place the courses above the maximum existing sortorder to avoid duplicate index errors
//after they've been sorted we'll shift them down again
begin_sql();
foreach ($courses as $course) {
set_field('course', 'sortorder', $count, 'id', $course->id);
$count++;
set_field('course', 'sortorder', $sortorder, 'id', $course->id);
$sortorder++;
}
commit_sql();
//shift course sortorder back down the amount we moved them up
execute_sql('UPDATE '. $CFG->prefix .'course SET sortorder = sortorder-'.($sortordermax-$sortordermin).
' WHERE category='.$category->id);
fix_course_sortorder($category->id);
}
}