How to eagerly get the title of a related article?

Question

Laravel

Hello. Faced such problem: it is necessary, using eager loading in Laravel, to receive the list of comments and headings of the materials connected with them. The comment is related to several material types by the morphTo relationship. I do it like this:

$comments = Comment::with(['material' => function($query) {
  $query->selectRaw('title');
}])->orderBy('id', 'desc')->take(15)->get();

As a result, I get the downloaded comments along with the full versions of the materials (all fields). What am I doing wrong?

Answer 1

$query->select(['id', 'title']);
id is needed to link models