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I am trying to programmatically create a media object and a file, and then associate the file with the media object. The first part works--I can successfully create the media object and file. But the second part fails--the media object has no file associated with it.

Here is my code:

//Begin handling file uploads
$file = file_save_data('hey dude', 'public://2019-07/my_example.txt', FILE_EXISTS_REPLACE);

$media_arr = [
  'bundle' => 'file',
  'langcode' => 'en',
  'uid' => '0',
  'name'=> 'Test Name',
  'created' => date('U'),
  'changed' => date('U'),      
  'moderation_state' => 'published',
  'file' => [
    'target_id' => $file->id(),
  ],
];

$drupalMedia = Media::create($media_arr);

$drupalMedia->setName('Test Media Object')
  ->setPublished(TRUE)
  ->save();   

my_example.txt is created in the files directory, and the media object "Test Media Object" is also created, and I'm able to attach it to a node. But there is no file in the new media object! Am I missing something here?

1

Ah, I always figure it out after I say I can't do it. Once I specified the document type, it worked:

$media_arr = [
  'bundle' => 'file',
  'langcode' => 'en',
  'uid' => \Drupal::currentUser()->id(),
  'created' => date('U'),
  'changed' => date('U'),      
  'moderation_state' => 'published',
  'field_file_document_type' => 1409, //1409 is the id for pdf
  'field_media_file' => [
    'target_id' => $file->id(),
  ],
];

Edit: I should mention that 1409 is the id we use for pdfs, yours will be different. The field_file_document_type just needed to have a value in it to work.

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