sfraser657

Hey,

The mistake in the code is pretty obvious, if anyone is still interested in this. You haven’t defined $blog_id; just add “global $blog_id;” to the beginning of your function and it works great.

Peace,
Steve

Hey Jeff,

This post is seven months old so you probably figured it out or gave up by now…but, anyway, i borrowed your code here so I figured it only fair to explain what you’re missing.

To upload a file you need to set the form’s encoding to “multipart/form-datat”, like so:

add_action('post_edit_form_tag', 'add_post_enctype');
function add_post_enctype() {
    echo ' enctype="multipart/form-data"';
}

Your save_pdf() function doesn’t handle the file upload. Here’s what I used to handle this. This will upload the file, as an attachment with the post as parent, and erase the previously uploaded file.

function save_pdf() {
    if($_FILES["pdf_file"]) {
	global $post;
        // check filetype is pdf and return if not
        $file_type = $_FILES['pdf_file']['type'];
	if($file_type != 'application/pdf') return;
        // upload the file
	$overrides = array( 'test_form' => false);
	$file = wp_handle_upload($_FILES["pdf_file"],$overrides);
      	if(isset($file['file'])) {
            // Gather data for attachment
            $title = str_replace(".pdf","",$_FILES["pdf_file"]['name']);
            $attachment = array(
                'post_mime_type' => $file_type,
                'post_title' => addslashes($title),
                'post_content' => '',
                'post_status' => 'inherit',
                'post_parent' => $post->ID
            );
            //create attachment & update metadata
            $attach_id = wp_insert_attachment( $attachment, $file['file'] );
            // Before we update the post meta, trash any previously uploaded pdfs for this post.
            $existing_pdfa = (int) get_post_meta($post->ID,'pdfa', true);
            if(is_numeric($existing_pdfa)) {
                wp_delete_attachment($existing_pdfa);
            }
            // Now, update the post meta to associate the new pdf with the post
            update_post_meta($post->ID, "pdfa", $attach_id);
        }
    }
}

Probably too late but…hope that helps. 🙂