app/Http/Resources/Detalles_ventaResource.php
/**
     * Transform the resource into an array.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return array|\Illuminate\Contracts\Support\Arrayable|\JsonSerializable
     */
Transform the resource into an array.
Transform the resource into an array .
public function toArray($request)
    {
        return [
            'venta_id' => $this->venta_id
            , 'producto_id' => $this->producto_id
            , 'cantidad' => $this->cantidad
            ,'total' => $this->total
        ];
    }
public function toArray ( $ request ) { return [ 'venta_id' => $ this -> venta_id , 'producto_id' => $ this -> producto_id , 'cantidad' => $ this -> cantidad , 'total' => $ this -> total ] ; }
Transform the resource into an array.
Transform the resource into an array .