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90 lines
3.7 KiB
PHP
90 lines
3.7 KiB
PHP
<?php //$Id$
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// This file keeps track of upgrades to
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// the quiz module
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//
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// Sometimes, changes between versions involve
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// alterations to database structures and other
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// major things that may break installations.
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//
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// The upgrade function in this file will attempt
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// to perform all the necessary actions to upgrade
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// your older installtion to the current version.
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//
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// If there's something it cannot do itself, it
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// will tell you what you need to do.
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//
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// The commands in here will all be database-neutral,
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// using the functions defined in lib/ddllib.php
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function xmldb_quiz_upgrade($oldversion=0) {
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global $CFG, $THEME;
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$result = true;
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/// And upgrade begins here. For each one, you'll need one
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/// block of code similar to the next one. Please, delete
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/// this comment lines once this file start handling proper
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/// upgrade code.
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if ($result && $oldversion < 2007022800) {
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/// Ensure that there are not existing duplicate entries in the database.
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$duplicateunits = get_records_select('question_numerical_units', "id > (SELECT MIN(iqnu.id)
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FROM {$CFG->prefix}question_numerical_units iqnu
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WHERE iqnu.question = {$CFG->prefix}question_numerical_units.question AND
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iqnu.unit = {$CFG->prefix}question_numerical_units.unit)", '', 'id');
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if ($duplicateunits) {
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delete_records_select('question_numerical_units', 'id IN (' . implode(',', array_keys($duplicateunits)) . ')');
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}
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/// Define index question-unit (unique) to be added to question_numerical_units
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$table = new XMLDBTable('question_numerical_units');
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$index = new XMLDBIndex('question-unit');
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$index->setAttributes(XMLDB_INDEX_UNIQUE, array('question', 'unit'));
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/// Launch add index question-unit
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$result = $result && add_index($table, $index);
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}
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if ($result && $oldversion < 2007070200) {
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/// Changing precision of field timelimit on table quiz to (10)
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$table = new XMLDBTable('quiz');
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$field = new XMLDBField('timelimit');
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$field->setAttributes(XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null, null, '0', 'timemodified');
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/// Launch change of precision for field timelimit
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$result = $result && change_field_precision($table, $field);
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}
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if ($result && $oldversion < 2007072200) {
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require_once $CFG->dirroot.'/mod/quiz/lib.php';
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// too much debug output
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$db->debug = false;
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quiz_update_grades();
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$db->debug = true;
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}
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// Separate control for when overall feedback is displayed, independant of the question feedback settings.
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if ($result && $oldversion < 2007072600) {
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// Adjust the quiz review options so that overall feedback is displayed whenever feedback is.
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$result = $result && execute_sql('UPDATE ' . $CFG->prefix . 'quiz SET review = ' .
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sql_bitor(sql_bitand('review', sql_bitnot(QUIZ_REVIEW_OVERALLFEEDBACK)),
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sql_bitor(sql_bitand('review', QUIZ_REVIEW_FEEDBACK & QUIZ_REVIEW_IMMEDIATELY) . ' * 65536',
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sql_bitor(sql_bitand('review', QUIZ_REVIEW_FEEDBACK & QUIZ_REVIEW_OPEN) . ' * 16384',
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sql_bitand('review', QUIZ_REVIEW_FEEDBACK & QUIZ_REVIEW_CLOSED) . ' * 4096'))));
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// Same adjustment to the defaults for new quizzes.
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$result = $result && set_config('quiz_review', ($CFG->quiz_review & ~QUIZ_REVIEW_OVERALLFEEDBACK) |
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(($CFG->quiz_review & QUIZ_REVIEW_FEEDBACK & QUIZ_REVIEW_IMMEDIATELY) << 16) |
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(($CFG->quiz_review & QUIZ_REVIEW_FEEDBACK & QUIZ_REVIEW_OPEN) << 14) |
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(($CFG->quiz_review & QUIZ_REVIEW_FEEDBACK & QUIZ_REVIEW_CLOSED) << 12));
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}
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return $result;
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}
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?>
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