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fix: Prevent errors for fields starting with equal sign (=) #43

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fix: Prevent errors for fields starting with equal sign (=) #43

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85 changes: 59 additions & 26 deletions Classes/Controller/DatabaseStorageController.php
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Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,11 @@
use Neos\Flow\I18n\Translator;
use Neos\Flow\Mvc\Controller\ActionController;

use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Cell\DataType;
use PhpOffice\PhpSpreadsheet\Spreadsheet;
use PhpOffice\PhpSpreadsheet\Style\Alignment;
use PhpOffice\PhpSpreadsheet\IOFactory;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
use PhpOffice\PhpSpreadsheet\Writer\Exception as WriterException;

use Wegmeister\DatabaseStorage\Domain\Model\DatabaseStorage;
Expand Down Expand Up @@ -236,12 +238,14 @@ public function exportAction(string $identifier, string $writerType = 'Xlsx', bo

$spreadsheet = new Spreadsheet();

$spreadsheet->getProperties()->setCreator($this->settings['creator'])->setTitle(
$this->settings['title']
)->setSubject($this->settings['subject']);
$spreadsheet->getProperties()
->setCreator($this->settings['creator'])
->setTitle($this->settings['title'])
->setSubject($this->settings['subject']);

$spreadsheet->setActiveSheetIndex(0);
$spreadsheet->getActiveSheet()->setTitle($this->settings['title']);
$activeSheet = $spreadsheet->getActiveSheet();
$activeSheet->setTitle($this->settings['title']);

$formElementLabels = $this->databaseStorageService->getFormElementLabels(
$entries
Expand All @@ -254,10 +258,20 @@ public function exportAction(string $identifier, string $writerType = 'Xlsx', bo
$columns++;
}

$dataArray[] = $formElementLabels;
$row = 1;
$this->setRowValues($activeSheet, $row, $formElementLabels);

// Set styles for titles (bold and centered)
$lastColumnLetter = $this->getColumnLetter($columns - 1);
$columnStyle = $activeSheet->getStyle('A1:' . $lastColumnLetter . '1');
$columnStyle->getFont()->setBold(true);
$columnStyle->getAlignment()
->setHorizontal(Alignment::HORIZONTAL_CENTER)
->setVertical(Alignment::VERTICAL_CENTER);

/** @var DatabaseStorage $entry */
foreach ($entries as $entry) {
$row++;
$values = [];
foreach ($formElementLabels as $formElementLabel) {
$values[$formElementLabel] = $this->databaseStorageService->getValueFromEntryProperty(
Expand All @@ -268,26 +282,7 @@ public function exportAction(string $identifier, string $writerType = 'Xlsx', bo
if ($exportDateTime) {
$values['DateTime'] = $entry->getDateTime()->format($this->settings['datetimeFormat']);
}
$dataArray[] = $values;
}

$spreadsheet->getActiveSheet()->fromArray($dataArray);

// Set headlines bold
$prefixIndex = 64;
$prefixKey = '';
for ($i = 0; $i < $columns; $i++) {
$index = $i % 26;
$columnStyle = $spreadsheet->getActiveSheet()->getStyle($prefixKey . chr(65 + $index) . '1');
$columnStyle->getFont()->setBold(true);
$columnStyle->getAlignment()->setHorizontal(Alignment::HORIZONTAL_CENTER)->setVertical(
Alignment::VERTICAL_CENTER
);

if ($index + 1 > 25) {
$prefixIndex++;
$prefixKey = chr($prefixIndex);
}
$this->setRowValues($activeSheet, $row, $values);
}

if (ini_get('zlib.output_compression')) {
Expand All @@ -313,4 +308,42 @@ public function exportAction(string $identifier, string $writerType = 'Xlsx', bo
$writer->save('php://output');
exit;
}

/**
* Set values of a row. Use explicit string type to prevent calculation of formulas.
*
* @param Worksheet $sheet The sheet to set the values on.
* @param int $row The row to set the values on.
* @param string[] $values The values to set.
* @return void
*/
protected function setRowValues(Worksheet $sheet, int $row, array $values)
{
$index = 0;
foreach ($values as $value) {
$letter = $this->getColumnLetter($index);
$sheet->setCellValueExplicit(
$letter . $row,
$value,
DataType::TYPE_STRING
);
$index++;
}
}

/**
* Get column letter for a given index.
* @param int $index The index to get the prefix for.
* @return string
*/
protected function getColumnLetter(int $index): string
{
$prefixLetter = '';
if ($index > 25) {
$prefixLetter = chr(floor($index / 26) + 64);
}
$letter = $prefixLetter . chr(($index % 26) + 65);

return $letter;
}
}