relation - Laravel Grouping by Eloquent Relationship

Question

How can I group by relation?

Example

Sales::with('product_detail.product')->groupBy('product_name')->get()

How can I get a result with eloquent code?

Answer 1

You can specify a callback function for grouping your relation like this:

Sales::with(['product_detail.product' => function($query){
        $query->groupBy('product_name');
    }])->get();