251 lines
8 KiB
PHP
251 lines
8 KiB
PHP
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<?php
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namespace mod_timetable\task;
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/**
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* An example of a scheduled task.
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*/
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class import_data extends \core\task\scheduled_task {
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/**
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* Return the task's name as shown in admin screens.
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*
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* @return string
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*/
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public function get_name() {
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return get_string('import_data', 'mod_timetable');
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}
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private function read_lesson() {
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global $DB,$CFG;
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$lastmtime = get_config('timetable', 'lastmtime');
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$filenamel = get_config('timetable', 'fname_lesson');
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echo "Lastmtime = $lastmtime\n";
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if ($filenamel && (file_exists ($filenamel))) {
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$mtime = filemtime ( $filenamel );
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echo "mtime = $mtime\n";
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if ($mtime<=$lastmtime) return;
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echo "after return\n";
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try {
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$transaction = $DB->start_delegated_transaction();
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echo "before delete\n";
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$DB->delete_records_select("timetable_lesson", "id>0");
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echo "after delete\n";
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$handle = @fopen($filenamel, "r");
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echo "after handle\n";
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while (($buffer = fgets($handle, 4096)) !== false) {
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// echo $buffer;
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$buffer = utf8_encode(rtrim($buffer));
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$data = explode("\t", $buffer);
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if (count($data) != 10) throw new Exception('Wrong size of elements');
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$dataobject = (object)array('teacher' => $data[0],
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'day' => $data[1],
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'period' => $data[2],
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'subject' => $data[3],
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'room' => $data[4],
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'lessonid'=> $data[5],
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'flag' => $data[6],
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'class' => $data[7],
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'week' => $data[8],
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'unknown' => $data[9]);
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$DB->insert_record("timetable_lesson", $dataobject);
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}
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$transaction->allow_commit();
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fclose($handle);
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$lastmtime = $mtime;
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set_config('lastmtime', $lastmtime, 'timetable');
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} catch(Exception $e) {
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$transaction->rollback($e);
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}
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}
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}
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private function read_substitution() {
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global $DB,$CFG;
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$filehash = get_config('timetable', 'filehash_substitution');
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$filename = get_config('timetable', 'fname_substitution');
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if (!$filename || !file_exists($filename)) return;
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if (($handle = fopen($filename, 'r')) == FALSE) return;
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$hash = hash_file('md5', $filename);
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if ($hash == $filehash) return;
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$max_id = 0;
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$max_changetime = 0;
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if ($result = $DB->get_record_sql("select max(id), max(changetime) from {$CFG->prefix}timetable_substitution")) {
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$max_id = $result->{'max(id)'};
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$max_changetime = $result->{'max(changetime)'};
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}
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echo "Max id = $max_id\n";
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echo "Max changetime = $max_changetime\n";
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try {
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$transaction = $DB->start_delegated_transaction();
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while (($data = fgetcsv($handle, 1000, ',')) !== FALSE) {
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$dataobject = (object)array('id' => $data[0],
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'date' => $data[1],
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'period' => $data[2],
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'absence' => $data[3],
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'lesson' => $data[4],
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'teachera' => $data[5],
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'teacherb' => $data[6],
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'subjecta' => utf8_encode($data[7]),
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'statistica' => $data[8],
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'subjectb' => utf8_encode($data[9]),
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'statisticb' => $data[10],
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'rooma' => $data[11],
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'roomb' => $data[12],
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'statisticflag' => $data[13],
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'classa' => utf8_encode($data[14]),
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'reason' => utf8_encode($data[15]),
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'text' => utf8_encode($data[16]),
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'type' => $data[17],
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'classb' => utf8_encode($data[18]),
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'substitutiontype' => $data[19],
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'changetime' => $data[20],
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'unknown' => $data[21]);
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//echo var_dump($dataobject);
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foreach (get_object_vars($dataobject) as $key => $value) {
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if ($value=='') unset($dataobject->{$key});
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}
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if ($dataobject->id > $max_id) {
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$DB->insert_record_raw("timetable_substitution", $dataobject,false, false, true);
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echo "Object (id={$data[0]}) inserted\n";
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} elseif ($dataobject->changetime >= $max_changetime) {
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$DB->update_record("timetable_substitution", $dataobject);
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echo "Object (id={$data[0]}) updated\n";
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}
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}
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$transaction->allow_commit();
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fclose($handle);
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set_config('filehash_substitution', $hash, 'timetable');
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} catch(Exception $e) {
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$transaction->rollback($e);
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}
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}
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private function read_teacher() {
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global $DB,$CFG;
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$filehash = get_config('timetable', 'filehash_teacher');
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$filename = get_config('timetable', 'fname_teacher');
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echo "Filename: $filename\n";
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if (!$filename || !file_exists($filename)) return;
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if (($handle = fopen($filename, 'r')) == FALSE) return;
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$hash = hash_file('md5', $filename);
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if ($hash == $filehash) return;
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try {
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$transaction = $DB->start_delegated_transaction();
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echo "before delete\n";
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$DB->delete_records_select("timetable_teacher", "id>0");
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echo "after delete\n";
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$handle = @fopen($filename, "r");
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echo "after handle\n";
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while (($buffer = fgets($handle, 4096)) !== false) {
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echo $buffer;
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$buffer = utf8_encode(rtrim($buffer));
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$data = explode("\t", $buffer);
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if (!(array_key_exists(3,$data))) {
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$data[3] = '';
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} else {
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echo "firstname exists: $data[3]\n";
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}
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//if (count($data) < 3) throw new Exception('Wrong size of elements');
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$dataobject = (object)array('teacher' => $data[0],
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'surname' => $data[1],
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'firstname' => $data[3]);
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$DB->insert_record("timetable_teacher", $dataobject);
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}
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$transaction->allow_commit();
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fclose($handle);
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set_config('filehash_teacher', $hash, 'timetable');
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} catch(Exception $e) {
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$transaction->rollback($e);
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}
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}
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private function read_room() {
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global $DB,$CFG;
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$filehash = get_config('timetable', 'filehash_room');
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$filename = get_config('timetable', 'fname_room');
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if (!$filename || !file_exists($filename)) return;
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if (($handle = fopen($filename, 'r')) == FALSE) return;
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$hash = hash_file('md5', $filename);
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if ($hash == $filehash) return;
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try {
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$transaction = $DB->start_delegated_transaction();
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echo "before delete\n";
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$DB->delete_records_select("timetable_room", "id>0");
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echo "after delete\n";
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$handle = @fopen($filename, "r");
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echo "after handle\n";
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while (($buffer = fgets($handle, 4096)) !== false) {
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// echo $buffer;
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$buffer = utf8_encode(rtrim($buffer));
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$data = explode("\t", $buffer);
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if (count($data) < 2) throw new Exception('Wrong size of elements');
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$dataobject = (object)array('room' => $data[0],
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'description' => $data[1]);
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$DB->insert_record("timetable_room", $dataobject);
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}
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$transaction->allow_commit();
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fclose($handle);
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set_config('filehash_room', $hash, 'timetable');
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} catch(Exception $e) {
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$transaction->rollback($e);
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}
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}
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private function read_class() {
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global $DB,$CFG;
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$filehash = get_config('timetable', 'filehash_class');
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$filename = get_config('timetable', 'fname_class');
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if (!$filename || !file_exists($filename)) return;
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if (($handle = fopen($filename, 'r')) == FALSE) return;
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$hash = hash_file('md5', $filename);
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if ($hash == $filehash) return;
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try {
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$transaction = $DB->start_delegated_transaction();
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echo "before delete\n";
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$DB->delete_records_select("timetable_class", "id>0");
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echo "after delete\n";
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$handle = @fopen($filename, "r");
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echo "after handle\n";
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while (($buffer = fgets($handle, 4096)) !== false) {
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// echo $buffer;
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$buffer = utf8_encode(rtrim($buffer));
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$data = explode("\t", $buffer);
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if (!(array_key_exists(1,$data))) $data[1] = $data[0];
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if (count($data) < 2) throw new Exception('Wrong size of elements');
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$dataobject = (object)array('class' => $data[0],
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'description' => $data[1]);
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$DB->insert_record("timetable_class", $dataobject);
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}
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$transaction->allow_commit();
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fclose($handle);
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set_config('filehash_class', $hash, 'timetable');
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} catch(Exception $e) {
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$transaction->rollback($e);
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}
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}
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/**
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* Execute the task.
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*/
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public function execute() {
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global $DB,$CFG;
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$this->read_lesson();
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$this->read_substitution();
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$this->read_teacher();
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$this->read_room();
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$this->read_class();
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}
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}
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