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Merge branch 'wip-MDL-41062-master' of git://github.com/marinaglancy/moodle
This commit is contained in:
Dan Poltawski
commit
1db62f7ff4
@ -2919,5 +2919,13 @@ function xmldb_main_upgrade($oldversion) {
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upgrade_main_savepoint(true, 2014011000.01);
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}
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if ($oldversion < 2014011701.00) {
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// Fix gradebook sortorder duplicates.
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upgrade_grade_item_fix_sortorder();
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// Main savepoint reached.
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upgrade_main_savepoint(true, 2014011701.00);
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}
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return true;
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}
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@ -42,4 +42,111 @@ class core_upgradelib_testcase extends advanced_testcase {
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// if there aren't any old files in the codebase.
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$this->assertFalse(upgrade_stale_php_files_present());
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}
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/**
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* Test the {@link upgrade_grade_item_fix_sortorder() function with
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* faked duplicate sortorder data.
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*/
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public function test_upgrade_grade_item_fix_sortorder() {
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global $DB;
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$this->resetAfterTest(true);
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// The purpose of this test is to make sure that after upgrade script
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// there is no duplicates in the field grade_items.sortorder (for each course)
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// and the result of query "SELECT id FROM grade_items WHERE courseid=? ORDER BY sortorder, id" does not change.
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$sequencesql = 'SELECT id FROM {grade_items} WHERE courseid=? ORDER BY sortorder, id';
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// Each set is used for filling the db with fake data and will be representing the result of query:
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// "SELECT sortorder from {grade_items} WHERE courseid=? ORDER BY id".
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$testsets = array(
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// Items that need no action.
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array(1,2,3),
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array(5,6,7),
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array(7,6,1,3,2,5),
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// Items with sortorder duplicates
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array(1,2,2,3,3,4,5),
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// Only one sortorder duplicate.
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array(1,1),
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array(3,3),
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// Non-sequential sortorders with one or multiple duplicates.
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array(3,3,7,5,6,6,9,10,8,3),
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array(7,7,3),
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array(3,4,5,3,5,4,7,1)
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);
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$origsequences = array();
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// Generate the data and remember the initial sequence or items.
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foreach ($testsets as $testset) {
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$course = $this->getDataGenerator()->create_course();
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foreach ($testset as $sortorder) {
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$this->insert_fake_grade_item_sortorder($course->id, $sortorder);
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}
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$DB->get_records('grade_items');
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$origsequences[$course->id] = $DB->get_fieldset_sql($sequencesql, array($course->id));
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}
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$duplicatedetectionsql = "SELECT courseid, sortorder
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FROM {grade_items}
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GROUP BY courseid, sortorder
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HAVING COUNT(id) > 1";
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// Verify there are duplicates before we start the fix.
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$dupes = $DB->record_exists_sql($duplicatedetectionsql);
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$this->assertTrue($dupes);
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// Do the work.
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upgrade_grade_item_fix_sortorder();
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// Verify that no duplicates are left in the database.
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$dupes = $DB->record_exists_sql($duplicatedetectionsql);
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$this->assertFalse($dupes);
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// Verify that sequences are exactly the same as they were before upgrade script.
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$idx = 0;
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foreach ($origsequences as $courseid => $origsequence) {
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if (count(($testsets[$idx])) == count(array_unique($testsets[$idx]))) {
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// If there were no duplicates for this course verify that sortorders are not modified.
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$newsortorders = $DB->get_fieldset_sql("SELECT sortorder from {grade_items} WHERE courseid=? ORDER BY id", array($courseid));
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$this->assertEquals($testsets[$idx], $newsortorders);
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}
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$newsequence = $DB->get_fieldset_sql($sequencesql, array($courseid));
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$this->assertEquals($origsequence, $newsequence,
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"Sequences do not match for test set $idx : ".join(',', $testsets[$idx]));
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$idx++;
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}
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}
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/**
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* Populate some fake grade items into the database with specified
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* sortorder and course id.
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*
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* NOTE: This function doesn't make much attempt to respect the
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* gradebook internals, its simply used to fake some data for
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* testing the upgradelib function. Please don't use it for other
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* purposes.
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*
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* @param int $courseid id of course
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* @param int $sortorder numeric sorting order of item
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* @return stdClass grade item object from the database.
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*/
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private function insert_fake_grade_item_sortorder($courseid, $sortorder) {
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global $DB, $CFG;
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require_once($CFG->libdir.'/gradelib.php');
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$item = new stdClass();
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$item->courseid = $courseid;
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$item->sortorder = $sortorder;
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$item->gradetype = GRADE_TYPE_VALUE;
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$item->grademin = 30;
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$item->grademax = 110;
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$item->itemnumber = 1;
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$item->iteminfo = '';
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$item->timecreated = time();
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$item->timemodified = time();
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$item->id = $DB->insert_record('grade_items', $item);
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return $DB->get_record('grade_items', array('id' => $item->id));
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}
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}
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@ -2049,3 +2049,42 @@ function upgrade_rename_old_backup_files_using_shortname() {
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@rename($dir . '/' . $file, $dir . '/' . $newname);
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}
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}
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/**
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* Detect duplicate grade item sortorders and resort the
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* items to remove them.
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*/
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function upgrade_grade_item_fix_sortorder() {
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global $DB;
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// The simple way to fix these sortorder duplicates would be simply to resort each
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// affected course. But in order to reduce the impact of this upgrade step we're trying
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// to do it more efficiently by doing a series of update statements rather than updating
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// every single grade item in affected courses.
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$transaction = $DB->start_delegated_transaction();
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$sql = "SELECT g1.id, g1.courseid, g1.sortorder
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FROM {grade_items} g1
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JOIN {grade_items} g2 ON g1.courseid = g2.courseid
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WHERE g1.sortorder = g2.sortorder AND g1.id != g2.id
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ORDER BY g1.courseid ASC, g1.sortorder DESC, g1.id DESC";
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// Get all duplicates in course order, highest sort order, and higest id first so that we can make space at the
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// bottom higher end of the sort orders and work down by id.
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$rs = $DB->get_recordset_sql($sql);
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foreach($rs as $duplicate) {
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$DB->execute("UPDATE {grade_items}
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SET sortorder = sortorder + 1
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WHERE courseid = :courseid AND
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(sortorder > :sortorder OR (sortorder = :sortorder2 AND id > :id))",
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array('courseid' => $duplicate->courseid,
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'sortorder' => $duplicate->sortorder,
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'sortorder2' => $duplicate->sortorder,
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'id' => $duplicate->id));
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}
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$rs->close();
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$transaction->allow_commit();
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}
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@ -29,7 +29,7 @@
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defined('MOODLE_INTERNAL') || die();
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$version = 2014011700.00; // YYYYMMDD = weekly release date of this DEV branch.
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$version = 2014011701.00; // YYYYMMDD = weekly release date of this DEV branch.
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// RR = release increments - 00 in DEV branches.
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// .XX = incremental changes.
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