I get Error in laravel query when i use count(rating) as productRating then it not found productRating Field - sql

Question

I join My product table to review table then i count the rating of product then put condityion on rating then i got error that field not found.
Code:
$products = Product::leftjoin('reviews','products.id','=','reviews.productID')
->select('products.*',DB::raw("AVG(rating) as 'productRating'"))
->where('products.status','=',"enable")
->where(function($query) use ($categoriesID,$brands,$priceArray,$ratingArray)
{
$query->whereIn('categoryID',$categoriesID);
if(count($brands) > 0)
{
$query->whereIn('brandID',$brands);
}
$query->whereBetween('productSellingPrice',$priceArray);
if(count($ratingArray) > 0)
{
$query->whereBetween('productRating',$ratingArray);
}
})
->groupBy('products.id')
->get();
Error :
SQLSTATE[42S22]: Column not found: 1054 Unknown column 'productRating' in 'where clause' (SQL: select `products`.*, AVG(rating) as 'productRating' from `products` left join `reviews` on `products`.`id` = `reviews`.`productID` where `products`.`status` = enable and (`categoryID` in (1, 3, 4, 8, 9, 11, 18, 21, 28, 31) and `productSellingPrice` between 50 and 5000 and `productRating` between 4 and 5) group by `products`.`id`)

Answer 1

This is SQL, not laravel, error.
You can not use aggregated field is where clause, you need to use having instead.
$products = Product::leftjoin('reviews','products.id','=','reviews.productID')
->select('products.*',DB::raw("AVG(rating) as 'productRating'"))
->where('products.status','=',"enable")
->whereIn('categoryID',$categoriesID)
->whereBetween('productSellingPrice',$priceArray)
->groupBy('products.id');
if(count($brands) > 0)
{
$products->whereIn('brandID',$brands);
}
if(count($ratingArray) > 0)
{
// assume $ratingArray = [$min, $max];
list($ratingMin, $ratingMax) = $ratingArray;
$products->having('productRating', '>', $ratingMin);
$products->having('productRating', '<', $ratingMax);
}
$items = $products->get();

Answer 2

thank you Everyone i already solved it
Code:
$products = Product::leftjoin('reviews','products.id','=','reviews.productID')
->select('products.*',DB::raw("IFNULL(AVG(rating),0) as 'productRating'"))
->where('products.status','=',"enable")
->where(function($query) use ($categoriesID,$brands,$priceArray)
{
$query->whereIn('categoryID',$categoriesID);
if(count($brands) > 0)
{
$query->whereIn('brandID',$brands);
}
$query->whereBetween('productSellingPrice',$priceArray);
})
->groupBy('products.id')
->having('productRating', '>=', $startRating)
->having('productRating', '<=', $endRating)
->get();