How to change save path of PDF files in magento 2

Question

Currently PDF files are saving in var directory.

Here is controller's execute function

 public function execute()
 { 
 $orderId = $this->getRequest()->getParam('id');
 if ($orderId) {
 $order = $this->orderRepository->get($orderId);
 if ($order) {
 $pdf = $this->orderPdfFactory->create()->getPdf([$order]);
 $date = $this->date->date('Y-m-d_H-i-s');
 return $this->fileFactory->create(
 'order' . $date . '.pdf',
 $pdf->render(),
 DirectoryList::VAR_DIR,
 'application/pdf'
 );
 }
 }
 return $this->resultRedirectFactory->create()->setPath('sales/*/view');
 }

DirectoryList::VAR_DIR,

Above code responsible for that. Now my question is that I want to save pdf files under var/pdf directory. How can I do this ?

Answer 1

You can do this in 2 ways:

1.The easiest way is to add in the file name the path, for example:

return $this->fileFactory->create(
 'custom/path/ . 'order' . $date . '.pdf',
 $pdf->render(),
 DirectoryList::VAR_DIR,
 'application/pdf'
);

2. Find a way to override the DirectoryList Class "Magento\Framework\App\Filesystem\DirectoryList" and add a constant with your custom path.

...
/**
* Code base root
*/
const ROOT = 'base';
const CUSTOM_PATH = 'var/pdf';
...
public static function getDefaultConfig()
{
 $result = [
 self::ROOT => [parent::PATH => ''],
 ...
 self::CUSTOM_PATH => [parent::PATH => 'var/pdf/'],
 ];
 return parent::getDefaultConfig() + $result;
}
...

Answer 2

Looking at other methods where a subfolder of varor media is used and given the fact, that DirectoryList::VAR_DIR returns the string value 'var' I think it's save to assume it's fine to concat it via Directory Separator (DS).

public function execute()
 { 
 $orderId = $this->getRequest()->getParam('id');
 if ($orderId) {
 $order = $this->orderRepository->get($orderId);
 if ($order) {
 $pdf = $this->orderPdfFactory->create()->getPdf([$order]);
 $date = $this->date->date('Y-m-d_H-i-s');
 return $this->fileFactory->create(
 'order' . $date . '.pdf',
 $pdf->render(),
 DirectoryList::VAR_DIR . DS . 'pdf',
 'application/pdf'
 );
 }
 }
 return $this->resultRedirectFactory->create()->setPath('sales/*/view');
 }