Problem with sending the PDF

[Bhoft]

Hi i have created a pdf from a view. The pdf is correctly rendered.

How can i "send" the file? I tried:

 $pdf->send($file, $options = ['inline'=> false]);
 $pdf->send($file, $options = ['inline'=> false]);

But always getting an error. The problem is that the Tempfile destructor deletes the file automatically on php end. https://github.com/yii2tech/html2pdf/blob/master/src/TempFile.php#L36

So that the File couldn't been send because it's already deleted.

If i remove that line the file sending works flawlessly.

Wouldn't at be better to delete the file after download?

 Yii::$app->response->sendFile($pdf->name)->on(\yii\web\Response::EVENT_AFTER_SEND, function ($event) {
       unlink($event->data);
 }, $pdf->name);

Of course i could create another copy of that file, but then i don't understand the functions to send that file.

But maybe there is another solution which i don't know to prevent the call of the __destruct call.

[beroso]

I think that you forgot the return statement:

return $pdf->send($file, $options = ['mimeType' => 'application/pdf', 'inline'=> false]);

[Bhoft]

Hmm I forgot to mention that i use the class in a response formatter which i have created by myself. I use this in my controller to get a "export to pdf" possibility for each action by only setting the response formatter when e.g. ?export = pdf is used as a query.

And there is the problem that $pdf->send only works if the file isn't deleted.

something like this:

namespace app\formatter;

use Yii;
use yii\base\Component;
use yii\web\Response;
use yii\web\ResponseFormatterInterface;

class TestResponseFormatter extends Component implements ResponseFormatterInterface
{
    public function format($response)
    {
        //$pdf = Yii::$app->html2pdf->convert('some test');
        $pdf = Yii::$app->html2pdf->convert($response->data);
        $pdf->send('test.pdf', $options = ['inline'=> true]);
    }
}

which that i could render a view in my action and just set the response format. And the html code is used as input for the pdf.

Yii::$app->response->format = 'html2pdf';

in config:

  'response' => [
        'formatters' => [
            'html2pdf' => [
                'class' => 'eurescom\formatter\TestResponseFormatter',
            ],

of course if is save the file (make a copy) i could send it. I see that this only happens if i use the html2pdf class like above and not directly in the action.

It would be good if there was a possibility to set if the files should be deleted automatically or manually. I also see no possibility to use my own Tempfile class and just replace the destructor.

[beroso]

It's clear now. You are misusing the ResponseFormatterInterface. The format method is suitable to format the response, not send it.

[beroso]

You need to refact your format method to something like:

    public function format($response)
    {
        $pdf = Yii::$app->html2pdf->convert($response->data);
        $response->setDownloadHeaders('test.pdf', $mimeType = 'application/pdf', $inline = true);
        $response->content = file_get_contents($pdf->name);
    }

[Bhoft]

you are right. if i send the contents of the file and set the appropriate headers myself it works. I don't know why i came to the solution to use the send function and why it is working if the file isn't deleted by the destructor.

[beroso]

You're welcome ;)