creating conditions for recieving partial delivery of products in laravel

Its my 2nd day of trying to make my "receiving of partial delivery" for my app. I am trying my luck here with you masters.

I have these two tables, the first one is the order_items table,

This table holds the items from the purchase order. and the other table is warehouse1

which hold the partially receive items.

I get the logic, I have to group the warehouse1.order_item_id so that I could get the sum of the items from let say order_number_id=22 which is the id from order_items table. to show you, here's my code doing the GROUP

public function viewdeliveryItems($id)
{
    $partialDeliveries = Warehouse1stocks::where('order_id', '=', $id)
       ->select(
                'order_item_id',
                DB::raw('SUM(stock_in_qty) as stock_in_qty'))->groupBy('order_item_id')->get();
                // DB::raw('SUM(stock_out_qty) as stock_out_qty'))->groupBy('order_item_id')->get();


    $order = Orders::find($id);
    $orderItems = $order->orderItems;


    $warehouse1stocks = Warehouse1stocks::all('order_id','order_item_id','stock_in_qty')->where('order_id','=',$id);

    return view('orders.delivery')->with('order', $order)
                                  ->with('warehouse1stocks', $warehouse1stocks)
                                  ->with('partialDeliveries', $partialDeliveries);
}

in my code you'll see that I group the order_item_id and called also the order items but you can see that their only link is ORDER_ID.

Just to show you the eloquent connection, in Orderitems Model

public function Warehouse1stocks()
{
    return $this->hasMany('App\Warehouse1stocks', 'id', 'order_item_id')->orderBy('created_at', 'DESC');
} 

Warehouse1stocks model

public function orderItems()
{
    return $this->hasMany('App\Orderitems', 'order_id', 'id')->orderBy('created_at', 'DESC');

}

And in my blade, as I mention in my intro, I am doing this in almost 2 days, I am not really a coder that's why I rely most of my codes base from tutorials available in google, I think I tried to many approach and due to desperation I end up with this,

@foreach($order->orderItems as $key=>$orderItem)
<tr>
    <td></td>
    <td></td>

    <td>
    @foreach($partialDeliveries as $partialDelivery)

            @if($partialDelivery->order_item_id == $orderItem->id)
                @php
                $remainingDeliveries = $orderItem->quantity - $partialDelivery->stock_in_qty;
                @endphp                    
            @else
                @php
                $remainingDeliveries = $orderItem->quantity;
                @endphp
            @endif


                {!! Form::number('stock_in_qty[]', $remainingDeliveries, 
                                ['id'=>'stock_in_qty_'.$orderItem->id]) !!} 
    @endforeach
    </td>
    ....
</tr>
@endforeach

**note: at first it has " @if($loop->first)" right below of the first ForEach. I just remove it.

Explanation the first @foreach calls the items from orderItems table and the second calls the item which has the partially received items

from my if condition, if both order_item_id are equal then triggers the computation. if not then just grab the quantity from order_items table.

But doing this does not gave what my expected result.

I know my post is too long but I guess I need to explain more so that hopefully you could understand the scenario.

Masters I am really hoping you can help me with this. Thank you so much in advance!!!