how to change null value to zero

values of columns that is empty returns null. How to I make turn the null to zero so that if the value is null it returns zero.

 public function getThumbsUpAttribute($value){
     return $value !== null ? $value : 0;
}


public function videos()
{


        // return VideoViewsLikes::all();
       $rec_videos = Videos::orderBy('videos.created_at', 'DESC')->where('videos.publish', 1)
            ->leftJoin('video_views_likes', 'videos.vid_id', '=', 'video_views_likes.vid_id')
            ->select('videos.vid_id', 'videos.title as title', DB::raw("sum(video_views_likes.thumbs_down)  as dislike"), DB::raw("sum(video_views_likes.views)  as views"), DB::raw("sum(video_views_likes.thumbs_up)  as likes"))
            ->groupby('videos.vid_id')
            ->groupby('videos.title')
                ->get();
      
         return response()->json(['success' => $rec_videos]);
}

it still returns null.

Answer

instead of:

 DB::raw("sum(video_views_likes.thumbs_down)  as dislike");

you can use COALESCE witch Return the first non-null value

 DB::raw(" COALESCE(sum(video_views_likes.thumbs_down),0)  as dislike");

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Answer