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16 lines
702 B
PHP
16 lines
702 B
PHP
<?php // $Id$
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function quiz_report_statistics_cron(){
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global $DB;
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if ($todelete = $DB->get_records_select_menu('quiz_statistics', 'timemodified < ?', array(time()-5*HOURSECS))){
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list($todeletesql, $todeleteparams) = $DB->get_in_or_equal(array_keys($todelete));
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if (!$DB->delete_records_select('quiz_statistics', "id $todeletesql", $todeleteparams)){
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mtrace('Error deleting out of date quiz_statistics records.');
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}
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if (!$DB->delete_records_select('quiz_question_statistics', "quizstatisticsid $todeletesql", $todeleteparams)){
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mtrace('Error deleting out of date quiz_question_statistics records.');
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}
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}
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return true;
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}
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?>
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