计数更新查询在Laravel中不起作用

Question

public function increment($id)
{
    $this->model->where("id",'=', $id)->update(['rating'=> DB::raw('count+1')]);
}

I am getting the following error:

SQLSTATE[42S22]: Column not found: 1054 Unknown column 'count' in 'field list' (SQL: update news set rating = count+1, updated_at = 2019-04-13 08:12:51 where id = 5)

I also tried

->update(['rating'=>'count+1']);

Answer 1

You are not telling the query builder on which table you are performing the query, so DB::raw('count+1') makes no sense.

You can try to use the eloquent increment method like this:

$this->model->where("id", $id)->increment('rating');

Thanks @Tharaka removed the extra call to save().