Thank you!
I made a slight correction to the code, now it seems to be working. I tried to search for a few documents, like “API-desc-guidelines2411” and it seems to be returning only the post now.
For reference, the updated code is:
add_filter('asp_results', 'asp_return_posts_by_attachment_results');
function asp_return_posts_by_attachment_results($results) {
$ids = array();
$parent_ids = array();
$new_results = array();
// Gather existing post results first
foreach($results as $k=>&$r){
if ( isset($r->post_type) ) {
if ( $r->post_type == 'attachment' ) {
$parent_ids[] = wp_get_post_parent_id($r->id);
unset($results[$k]);
} else {
$ids[] = $r->id;
}
}
}
$parent_ids = array_unique(array_diff($parent_ids, $ids, array(0)));
foreach ( $parent_ids as $id ) {
$res = new stdClass();
$res->id = $id;
$res->title = get_the_title($id);
$res->content = get_the_content(null, false, $id);
$res->image = get_the_post_thumbnail_url($id);
$res->content = wd_substr_at_word(strip_tags($res->content), 130);
$res->post_type = get_post_type($id);
$res->link = get_permalink( $id );
$res->content_type = 'pagepost';
$new_results[] = $res;
}
return array_merge($new_results, $results);
}