When a user uploads a file, The pdf image grnerator plugin generates a thumbnail of uploaded files. i want the generated thumbnail set as the featured image.
Hi.
I hope this function helps you.
//Automatically set PDF thumbnail as featured image.
function save_pdf_thumb_as_featuredimage ( $post_id ) {
if ( wp_is_post_revision( $post_id ) ) return;
if ( get_post_type( $post_id ) !== 'post' ) return; // set your post type
if ( get_post_meta( $post_id, '_thumbnail_id', true ) ) return; // post already has featured image
$attaches = get_posts ( 'post_parent='.$post_id.'&numberposts=-1&post_type=attachment&post_mime_type=application/pdf&orderby=menu_order&order=ASC' );
if ( $attaches ): foreach( $attaches as $attach ):
if ( $thumb_id = get_post_meta( $attach->ID, '_thumbnail_id', true ) ){ // if pdf has thumbnail
update_post_meta( $post_id, '_thumbnail_id', $thumb_id );
break;
}
endforeach; endif;
}
add_action( 'save_post', 'save_pdf_thumb_as_featuredimage' );
If you want always automatically to set first attachment as featured image even if it is PDF, try this function.
//Automatically set first image/PDF as featured image.
function save_thumbnail_as_featuredimage ( $post_id ) {
if ( wp_is_post_revision( $post_id ) ) return;
if ( get_post_type( $post_id ) !== 'post' ) return; // set your post type
if ( get_post_meta( $post_id, '_thumbnail_id', true ) ) return; // post already has featured image
$args = array(
'post_parent' => $post_id,
'post_type' => 'attachment',
'numberposts' => -1,
'post_status' => null,
'orderby' => 'menu_order date',
'order' => 'ASC ASC'
);
$attaches = get_posts($args);
if ( $attaches ): foreach( $attaches as $attach ):
if ( $attach->post_mime_type == 'application/pdf' ){
if ( $thumb_id = get_post_meta( $attach->ID, '_thumbnail_id', true ) ){ // if pdf has thumbnail
update_post_meta( $post_id, '_thumbnail_id', $thumb_id );
break;
}
} elseif ( preg_match("/^image\//", $attach->post_mime_type ) ) {
update_post_meta( $post_id, '_thumbnail_id', $attach->ID );
break;
}
endforeach; endif;
}
add_action( 'save_post', 'save_thumbnail_as_featuredimage' );
Thank you.
Thank you for answering me Mizuho. Where do i insert this function?
the functions.php in the theme which you are using.
Thank you for helping me Mizuho, I really appreciate it. I am using Easy digital Downloads bundled with Marketify as theme. So the custom post type is the “download” So when i am adding a download i insert the pdf from the media uploader. But the Featured Image wont be uploaded automatically? Why is that? I can provide you the webpage and more if you want. Please contact me on anonym97@hotmail.com
Thank you very much.
Ok.
I’m not sure to be able to hook into EDD post type.
But it sounds like useful.
I’ll try in the near future.
Thanks.
