wp_update_attachment_metadata not creating the other image sizes (5 posts)

  1. vasilescu_anton
    Posted 4 years ago #

    I am trying to update an image attachment post and I've finally got it working to replace the image but wp_update_attachment_metadata does not create the thumbnails and the other media sizes. I've looked all over for a possible answer but to no avail.

    Here a simplified version of the code that I am using which is basically the one provided in the wp_insert_attachment codex page:

    $filename = 'http://www.mysite.com/wp-content/uploads/2012/01/Earth-Western-Hemisphere.jpg';
    		$wp_filetype = wp_check_filetype(basename($filename), null );
    		$attachment = array(
    			'ID' => 705,
    			'post_mime_type' => $wp_filetype['type'],
    			'post_title' => preg_replace('/\.[^.]+$/', '', basename($filename)),
    			'post_content' => '',
    			'post_excerpt' => '',
    			'post_status' => 'inherit'
    		$attach_id = wp_insert_attachment( $attachment, $filename, 704 );
    		// you must first include the image.php file
    		// for the function wp_generate_attachment_metadata() to work
    		require_once(ABSPATH . 'wp-admin/includes/image.php');
    		//update_attached_file( $attach_id, $filename );
    		$attach_data = wp_generate_attachment_metadata( $attach_id, $filename );
    		wp_update_attachment_metadata( $attach_id, $attach_data );

    Any help would be greatly appreciated!

    Thank you,

  2. vasilescu_anton
    Posted 4 years ago #

    The image is already uploaded to the server by the way!

  3. thereformation
    Posted 4 years ago #

    Have a look at the regenerate thumbnails plugin. Seems to do basically what you are after.

  4. vasilescu_anton
    Posted 4 years ago #

    I figured it out why it wasn't working. I was feeding the url to the file instead of the absolute path.

  5. paul-r
    Posted 3 years ago #

    Thanks Anton
    I was making the same mistake and took me hours to figure it out what went wrong. Great that you shared the answer on the forum!

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