Hi,
1. Try this variation:
add_filter( 'asp_results', 'asp_attachment_parent_in_category', 10, 1 );
function asp_attachment_parent_in_category( $results ) {
// Category IDs
$categories = array(1, 2, 3);
foreach ($results as $k=>&$r) {
if ( $r->content_type == 'attachment' ) {
$parent_id = wp_get_post_parent_id( $r->id );
if ( !is_wp_error($parent_id) && !empty($parent_id) ) {
if ( $parent_id == 0 || !in_category($categories, $parent_id) ) {
unset($results[$k]);
}
} else {
unset($results[$k]);
}
}
}
return $results;
}2. That is bad news, this may not be possible without theme modifications then. Maybe a bit more aggressive code will do it, try this:
add_filter( 'asp_regular_search_result', 'asp_force_guids', 10, 1 );
function asp_force_guids( $r ) {
if ( isset($r->asp_data) ) {
if ( $r->post_type == 'attachment' ) {
$parent_id = wp_get_post_parent_id( $r->id );
if ( !is_wp_error($parent_id) ) {
$r->guid = get_permalink($parent_id);
}
} else {
$r->guid = $r->asp_data->link;
}
$r->post_excerpt = $r->asp_data->content;
$r->post_content = $r->asp_data->content;
}
return $r;
}