Table Relationships about wp-orm HOT 4 OPEN

public function join($table, $one, $two, $type = 'join',  $operator = '=') {
    $this->joins[] = compact('table', 'one', 'two', 'type', 'operator');
}

$popular_posts = Post::query()
    ->limit(3 - count($hero_posts))
    ->offset(0)
    ->join('postmeta', 'postmeta.post_id', 'post.ID')
    ->where_not_in(BasePost::get_primary_key(), $exclude)
    ->where_in(BasePost::get_primary_key(), $sticky_posts)
    ->where('postmeta.meta_key', 'turnstile_post_views_count')
    ->where_gte('post_date', date("F jS, Y", strtotime("-7 days")))
    ->sort_by('postmeta.meta_value')
    ->order('DESC')
    ->find();