public function Exporter::save in Loft Data Grids 6.2

Same name and namespace in other branches

1. 7.2 vendor/aklump/loft_data_grids/src/AKlump/LoftDataGrids/Exporter.php \AKlump\LoftDataGrids\Exporter::save()

Save as a file to the server

Parameters

string $filename: The correct extension will be appended to this string

mixed $page_id: (Optional) Defaults to NULL. Set this to export a single page.

Overrides ExporterInterface::save

1 method overrides Exporter::save()

XLSXExporter::save in vendor/aklump/loft_data_grids/src/AKlump/LoftDataGrids/XLSXExporter.php

Save as a file to the server

File

vendor/aklump/loft_data_grids/src/AKlump/LoftDataGrids/Exporter.php, line 240

Class

Exporter

Class Exporter

Namespace

AKlump\LoftDataGrids

Code

public function save($filename = '', $page_id = NULL) {

  // Make sure we have rendered the data
  if (empty($this->output)) {
    $this
      ->compile($page_id);
  }

  // Assure the correct file extension
  if ($filename) {
    $this
      ->setFilename($filename);
  }
  $filename = $this
    ->getFilename();

  // Make sure we don't timeout
  $original = (int) ini_get('memory_limit');
  $memory_limit = strlen($this->output);

  //bytes
  $memory_limit /= 1048576;

  //convert to megabytes
  $memory_limit *= 2;

  //double the memory so we don't run out
  if ($memory_limit > $original) {
    $memory_limit *= 20;

    //double the memory so we don't run out
    $memory_limit = max($original, round($memory_limit)) . 'M';
    ini_set('memory_limit', $memory_limit);
  }

  // Send download headers
  header('Content-Description: File Transfer');
  header('Content-Type: application/octet-stream');
  header('Content-Disposition: attachment; filename="' . $this->filename . '"');
  header('Content-Transfer-Encoding: binary');
  header('Expires: 0');
  header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
  header('Pragma: public');
  header('Content-Length: ' . strlen($this->output));

  // Send contents
  print $this->output;
  exit;
}