Data of Files output from a Structure Field

i created in my blueprint a structure field to output zum PDF.Files

      downloads:
        label: Downloads
        type: structure
        style: table
             fields:
             label: PDF-Datei
             type: select 
             default: 
             options: files

but i get no infos about the filename, the size or the link to the file in my template.
how can i access to it

<?php
// get all PDF-Files
$downloads = $page->downloads()->toStructure();
foreach($downloads as $download): ?>
 <li><a href="<?= $download->url() ?>"><?= $download->filename() ?> <span>(<?= $download->niceSize() ?>)</span></a></li>
<?php endforeach ?>

You need to put value of the select field through file(). At the moment you just have the filename stored in the structure field. You need to pick up the value, check the file exists, and work on it from there.

Something like this i think, but not tested…

<?php
// get all PDF-Files
$downloads = $page->downloads()->toStructure();
foreach($downloads as $download): 
$pdffile = $page->file($download->PDF-Datei());?>
<?php if($pdffile): ?>
<li><a href="<?= $pdffile->url() ?>"><?= $pdffile->filename() ?> <span>(<?= $pdffile->niceSize() ?>)</span></a></li>
<?php endif ?>   
<?php endforeach ?>

Looks like there is an error in the blueprint code you posted above - the select field does not have name key, so you will need to change the code i just gave you above accordingly.

The code @jimbobrjames posted above is correct, but you can shorten it a bit:

<?php
// get all PDF-Files
$downloads = $page->downloads()->toStructure();
foreach($downloads as $download): 
  <?php if($pdfFile = $download->fieldname()->toFile()): ?>
    <li><a href="<?= $pdfFile->url() ?>"><?= $pdfFile->filename() ?> <span>(<?= $pdfFile->niceSize() ?>)</span></a></li>
  <?php endif ?>   
<?php endforeach ?>

With a blueprint like this:

  downloads:
        label: Downloads
        type: structure
        style: table
        fields:
          fieldname:
            label: PDF-Datei
            type: select 
            options: files

Apart from the missing fieldname, there’s also an empty default option, I’m surprised your blueprint worked like this.