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Hello Alex

why not simply map your image field directly to the feature image of the post when you are mapping your form? (see screenshot 6).

Hi Aurovrata, thanks for your answer. This was mapping to existing CPT, so I couldn’t use that kind of mapping…

ok, got it.

then you need to make sure you upload your file to the upload folder, insert it into the media library (create an attachment post) and finally attach it to the post as a thumbnail. Here is the code for this,

//$file is the path to your uploaded file (for example as set in the $_FILE posted file array)
//$filename is the name of the file
//first we need to upload the file into the wp upload folder. 
$upload_file = wp_upload_bits($filename, null, @file_get_contents($file));
if (!$upload_file['error']) {
  //if succesfull insert the new file into the media library (create a new attachment post type)
  $wp_filetype = wp_check_filetype($filename, null );
  $attachment = array(
    'post_mime_type' => $wp_filetype['type'],
    'post_parent' => $post_id,
    'post_title' => preg_replace('/\.[^.]+$/', '', $filename),
    'post_content' => '',
    'post_status' => 'inherit'
  );
  //wp_insert_attachment( $attachment, $filename, $parent_post_id );
  $attachment_id = wp_insert_attachment( $attachment, $upload_file['file'], $post_id );
  if (!is_wp_error($attachment_id)) {
     //if attachment post was successfully created, insert it as a thumbnail to the post $post_id
     require_once(ABSPATH . "wp-admin" . '/includes/image.php');
     //wp_generate_attachment_metadata( $attachment_id, $file ); for images
     $attachment_data = wp_generate_attachment_metadata( $attachment_id, $upload_file['file'] );
     wp_update_attachment_metadata( $attachment_id,  $attachment_data );
     set_post_thumbnail( $post_id, $attachment_id );
   }
}

Hi Aurovrata,

the above code didn’t work at all… After several days of trying a number of combinations, here is a code that works:

require_once(ABSPATH . 'wp-admin/includes/image.php');
require_once(ABSPATH . 'wp-admin/includes/media.php');
require_once(ABSPATH . 'wp-admin/includes/file.php');
	
	
$file_path = ABSPATH . "wp-content/uploads/attorney_images/" . $filename;
	
if (move_uploaded_file($file, $file_path)) {
		
	chmod($file_path, 0755);
		
	$filetype = wp_check_filetype( basename( $file_path ), null );

	// Get the path to the upload directory.
	$wp_upload_dir = wp_upload_dir();

	// Prepare an array of post data for the attachment.
	$attachment = array(
	'guid'           => $wp_upload_dir['url'] . '/' . basename( $file_path ), 
	'post_mime_type' => $filetype['type'],
	'post_title'     => preg_replace( '/\.[^.]+$/', '', basename( $file_path ) ),
	'post_content'   => '',
	'post_status'    => 'inherit'
		);

// Insert the attachment.
	$attach_id = wp_insert_attachment( $attachment, $file_path, $post_id );

	// Generate the metadata for the attachment, and update the database record.
	$attach_data = wp_generate_attachment_metadata( $attach_id, $file_path );
	wp_update_attachment_metadata( $attach_id, $attach_data );
		
	exec ("find " . ABSPATH . "wp-content/uploads/attorney_images/ -type f -exec chmod 0755 {} +");
	set_post_thumbnail( $post_id, $attach_id );
		
	}

• This reply was modified 7 years, 8 months ago by acamilicko.

oh good. Glad you made it work. v2.0 is out which allows you to map forms to existing posts usign the GUI. Hopefully this kind of exercise should become simpler moving forward.