Using where params in beforefind

I'm trying to use beforefind callback in ci4 BaseModel because I want to get comment like numbers for a specified post
To get post comments I'm using the normal findAll

PHP Code:

$comment_model->where('post_id', $post_id)->orderBy('id', 'desc')->findAll(); 


To show like numbers for each comment, I want to modify the findAll result using a callback in beforeFind

PHP Code:

//...
protected $beforeFind = ['beforeFindWithLikesNum'];
//...

protected function beforeFindWithLikesNum($eventData) {
                $this->builder = $this->db->table($this->table);
                $this->builder->select('comments.*, count(likes.id) as likenum');
                $this->builder->where($this->where);
                $this->builder->join('likes', 'likes.c_id=comments.id', 'left');
                $this->builder->limit($eventData['limit'], $eventData['offset']);
                $this->builder->groupBy('comments.id');
                $this->builder->orderBy('comments.id', 'desc');
                $query = $this->builder->get();

                $data['data'] = $query->getResultArray();
                $data['returnData'] = true;

                return $data;
} 


It works when I wants to get all, but when I get with condition,

PHP Code:

$model->where('post_id', 1)->findAll(); 


then it doesn't filter, because the "where" condition doesn't follow the eventData.

How do you think I can get where parameters inside that callback?

For now I'm using afterFind callback looping each result but that is too many queries.

PHP Code:

protected function afterFindWithLikesNum($eventData)
    {
        switch ($eventData['method']) {
            case 'findAll':
                $like_model = new LikeModel();

                foreach ($eventData['data'] as $row) {
                    $row['likes'] = $like_model->getCommentLikeCount($row['id']);
                    $rows[] = $row;
                }

                return ['data' => $rows];

                break;
            case 'find':
                $like_model = new LikeModel();
                $row = $eventData['data'];
                $row['likes'] = $like_model->getCommentLikeCount($row['id']);

                return ['data' => $row];

                break;
            } 


Thank you