How to attach an image or file to node in Drupal 8 programmatically

Posted by admin on Tue, 01/30/2018 - 09:09

Quick code sample on how to get and attach an image or file to node or other entity programmatically in Drupal 8.

Here's an example how you could save an image to node if you get this with file_get_contents

use \Drupal\node\Entity\Node;
 
// Create file object from remote URL.
$data = file_get_contents('https://www.drupal.org/files/druplicon.small_.png');
$file = file_save_data($data, 'public://druplicon.png', FILE_EXISTS_REPLACE);
 
// Create node object with attached file.
$node = Node::create([
  'type'        => 'article',
  'title'       => 'Druplicon test',
  'field_image' => [
    'target_id' => $file->id(),
  ],
]);
$node->save();

If you have an image already exists in you file system - so you could just attach it without any additional file manipulation.

use \Drupal\node\Entity\Node;
use \Drupal\file\Entity\File;
 
// Create file object from a locally copied file.
$uri  = file_unmanaged_copy('public://source.jpg', 'public://destination.jpg', FILE_EXISTS_REPLACE);
$file = File::Create([
  'uri' => $uri,
]);
$file->save();
 
// Load existing node and attach file.
$node = Node::load(1);
$node->field_image->setValue([
  'target_id' => $file->id(),
]);
$node->save();

And special thanks to Drupal 8 developers - you could easily create an image placeholder!
Just like this:

use \Drupal\node\Entity\Node;
 
$node = Node::create([
  'type'  => 'article',
  'title' => 'Generated image test',
]);
$node->field_image->generateSampleItems();
$node->save();
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