mod_timetable/classes/import.php

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2020-12-05 10:03:20 +00:00
<?php
namespace mod_timetable;
/**
* An example of a scheduled task.
*/
class import_data {
public function __construct() {
}
/**
* Return the task's name as shown in admin screens.
*
* @return string
*/
public function get_name() {
return get_string('import_data', 'mod_timetable');
}
private function update_lesson($content) {
global $DB,$CFG;
$filehash = get_config('timetable', 'filehash_lesson');
$hash = md5($content);
if ($hash == $filehash) return('Data not changed');
$result ="";
try {
$transaction = $DB->start_delegated_transaction();
$result .= "before delete\n";
$DB->delete_records_select("timetable_lesson", "id>0");
$result .= "after delete\n";
foreach (preg_split('/$\R?^/m',$content) as $buffer) {
//echo $buffer;
$result .= "+";
$buffer = utf8_encode(rtrim($buffer));
$data = explode("\t", $buffer);
if (count($data) != 10) throw new \Exception('Wrong size of elements ');
$dataobject = (object)array('teacher' => $data[0],
'day' => $data[1],
'period' => $data[2],
'subject' => $data[3],
'room' => $data[4],
'lessonid'=> $data[5],
'flag' => $data[6],
'class' => $data[7],
'week' => $data[8],
'unknown' => $data[9]);
$DB->insert_record("timetable_lesson", $dataobject);
}
$transaction->allow_commit();
set_config('filehash_lesson', $hash, 'timetable');
} catch(Exception $e) {
$transaction->rollback($e);
}
return ($result);
}
private function update_substitution($content) {
global $DB,$CFG;
$filehash = get_config('timetable', 'filehash_substitution');
$hash = md5($content);
if ($hash == $filehash) return('Data not changed');
$result ="";
try {
$transaction = $DB->start_delegated_transaction();
$result .= "before delete\n";
$DB->delete_records_select("timetable_substitution", "id>0");
$result .= "after delete\n";
foreach (preg_split('/$\R?^/m',$content) as $buffer) {
$data = str_getcsv($buffer, ',');
$dataobject = (object)array(
'id' => $data[0],
'date' => $data[1],
'period' => $data[2],
'absence' => $data[3],
'lesson' => $data[4],
'teachera' => $data[5],
'teacherb' => $data[6],
'subjecta' => utf8_encode($data[7]),
'statistica' => $data[8],
'subjectb' => utf8_encode($data[9]),
'statisticb' => $data[10],
'rooma' => $data[11],
'roomb' => $data[12],
'statisticflag' => $data[13],
'classa' => utf8_encode($data[14]),
'reason' => utf8_encode($data[15]),
'text' => utf8_encode($data[16]),
'type' => $data[17],
'classb' => utf8_encode($data[18]),
'substitutiontype' => $data[19],
'changetime' => $data[20],
'unknown' => $data[21]);
//echo var_dump($dataobject);
foreach (get_object_vars($dataobject) as $key => $value) {
if ($value=='') unset($dataobject->{$key});
}
$DB->insert_record_raw("timetable_substitution", $dataobject,false, false, true);
}
$transaction->allow_commit();
set_config('filehash_substitution', $hash, 'timetable');
} catch(Exception $e) {
$transaction->rollback($e);
}
return $result;
}
private function update_teacher($content) {
global $DB,$CFG;
$filehash = get_config('timetable', 'filehash_teacher');
$hash = md5($content);
if ($hash == $filehash) return('Data not changed');
$result = "";
try {
$transaction = $DB->start_delegated_transaction();
$result .= "before delete\n";
$DB->delete_records_select("timetable_teacher", "id>0");
$result .= "after delete\n";
foreach (preg_split('/$\R?^/m',$content) as $buffer) {
$buffer = utf8_encode(rtrim($buffer));
$data = explode("\t", $buffer);
if (!(array_key_exists(3,$data))) {
$data[3] = '';
} else {
$result .= "firstname exists: $data[3]\n";
}
//if (count($data) < 3) throw new Exception('Wrong size of elements');
$dataobject = (object)array('teacher' => $data[0],
'surname' => $data[1],
'firstname' => $data[3]);
$DB->insert_record("timetable_teacher", $dataobject);
}
$transaction->allow_commit();
set_config('filehash_teacher', $hash, 'timetable');
} catch(Exception $e) {
$transaction->rollback($e);
}
return $result;
}
private function update_room($content) {
global $DB,$CFG;
$filehash = get_config('timetable', 'filehash_room');
$hash = md5($content);
if ($hash == $filehash) return('Data not changed');
$result = "";
try {
$transaction = $DB->start_delegated_transaction();
$result .= "before delete\n";
$DB->delete_records_select("timetable_room", "id>0");
$result .= "after delete\n";
foreach (preg_split('/$\R?^/m',$content) as $buffer) {
$buffer = utf8_encode(rtrim($buffer));
$data = explode("\t", $buffer);
if (count($data) < 2) throw new \Exception('Wrong size of elements');
$dataobject = (object)array('room' => $data[0],
'description' => $data[1]);
$DB->insert_record("timetable_room", $dataobject);
}
$transaction->allow_commit();
set_config('filehash_room', $hash, 'timetable');
} catch(Exception $e) {
$transaction->rollback($e);
}
return $result;
}
private function update_class($content) {
global $DB,$CFG;
$filehash = get_config('timetable', 'filehash_class');
$hash = md5($content);
if ($hash == $filehash) return('Data not changed');
$result = "";
try {
$transaction = $DB->start_delegated_transaction();
$result .= "before delete\n";
$DB->delete_records_select("timetable_class", "id>0");
$result .= "after delete\n";
foreach (preg_split('/$\R?^/m',$content) as $buffer) {
$buffer = utf8_encode(rtrim($buffer));
$data = explode("\t", $buffer);
if (!(array_key_exists(1,$data))) $data[1] = $data[0];
if (count($data) < 2) throw new \Exception('Wrong size of elements');
$dataobject = (object)array('class' => $data[0],
'description' => $data[1]);
$DB->insert_record("timetable_class", $dataobject);
}
$transaction->allow_commit();
set_config('filehash_class', $hash, 'timetable');
} catch(Exception $e) {
$transaction->rollback($e);
}
return $result;
}
private function update_absence($content) {
global $DB,$CFG;
$filehash = get_config('timetable', 'filehash_abs');
$hash = md5($content);
if ($hash == $filehash) return('Data not changed');
$result = "";
try {
$transaction = $DB->start_delegated_transaction();
$result .= "before delete\n";
$DB->delete_records_select("timetable_absence", "id>0");
$result .= "after delete\n";
foreach (preg_split('/$\R?^/m',$content) as $buffer) {
$data = str_getcsv($buffer, ',');
$dataobject = (object)array('id' => $data[0],
'type' => $data[1],
'name' => utf8_encode($data[2]),
'startdate' => $data[3],
'enddate' => $data[4],
'startperiod' => $data[5],
'endperiod' => $data[6],
'reason' => utf8_encode($data[7]),
'text' => utf8_encode($data[8]));
foreach (get_object_vars($dataobject) as $key => $value) {
if ($value=='') unset($dataobject->{$key});
}
$DB->insert_record("timetable_absence", $dataobject);
}
$transaction->allow_commit();
set_config('filehash_abs', $hash, 'timetable');
} catch(Exception $e) {
$transaction->rollback($e);
}
return $result;
}
private function update_absence_reason($content) {
global $DB,$CFG;
$filehash = get_config('timetable', 'filehash_absreas');
$hash = md5($content);
if ($hash == $filehash) return('Data not changed');
$result = "";
try {
$transaction = $DB->start_delegated_transaction();
$result .= "before delete\n";
$DB->delete_records_select("timetable_absence_reason", "id>0");
$result .= "after delete\n";
foreach (preg_split('/$\R?^/m',$content) as $buffer) {
$data = str_getcsv($buffer, ',');
$dataobject = (object)array('reason' => utf8_encode($data[0]),
'description' => utf8_encode($data[1]),
'flag' => $data[2],
'statistic' => $data[3]);
foreach (get_object_vars($dataobject) as $key => $value) {
if ($value=='') unset($dataobject->{$key});
}
$DB->insert_record("timetable_absence_reason", $dataobject);
}
$transaction->allow_commit();
set_config('filehash_absreas', $hash, 'timetable');
} catch(Exception $e) {
$transaction->rollback($e);
}
return $result;
}
private function update_time($content) {
global $DB,$CFG;
$filehash = get_config('timetable', 'filehash_times');
$hash = md5($content);
if ($hash == $filehash) return('Data not changed');
$result = "";
try {
$transaction = $DB->start_delegated_transaction();
$result .= "before delete\n";
$DB->delete_records_select("timetable_time", "id>0");
$result .= "after delete\n";
foreach (preg_split('/$\R?^/m',$content) as $buffer) {
$buffer = utf8_encode(rtrim($buffer));
$data = explode("\t", $buffer);
$dataobject = (object)array('day' => $data[0],
'period' => $data[1],
'maxperiod' => $data[2],
'starttime' => $data[3],
'endtime' => $data[4]);
$DB->insert_record("timetable_time", $dataobject);
}
$transaction->allow_commit();
set_config('filehash_times', $hash, 'timetable');
} catch(Exception $e) {
$transaction->rollback($e);
}
return $result;
}
/**
* Execute the task.
*/
public function update($files) {
global $DB,$CFG;
$results = array();
foreach ($files as $file) {
$content = base64_decode($file['content']);
$result = array();
$result['name'] = $file['name'];
switch ($file['name']) {
case 'lesson':
$result['result'] = $this->update_lesson($content);
break;
case 'substitution':
$result['result'] = $this->update_substitution($content);
break;
case 'teacher':
$result['result'] = $this->update_teacher($content);
break;
case 'class':
$result['result'] = $this->update_class($content);
break;
case 'room':
$result['result'] = $this->update_room($content);
break;
case 'time':
$result['result'] = $this->update_time($content);
break;
case 'absence':
$result['result'] = $this->update_absence($content);
break;
case 'absence_reason':
$result['result'] = $this->update_absence_reason($content);
break;
default:
$result['result'] = "no handler";
}
$results[] = $result;
}
return $results;
}
}