Laravel : load objects on many level - php

Question

I have the following tables :
orders : id, etc...
order_lines : id, order_id, product_id, etc...
products : id, name, etc...
Foreign keys are defined.
My Laravel Models are defined as :
class Order
public function orderLine()
{
return $this->hasMany('App\OrderLine');
}
class OrderLine
public function order()
{
return $this->belongsTo('App\Order');
}
public function product()
{
return $this->belongsTo('App\Product');
}
class Product
public function orderLine()
{
return $this->hasMany('App\OrderLine');
}
I've tried many things, but nothing is working. Here is the best solution for me, but it's not working.
class OrderController
public function show($id)
{
$user = Auth::user();
$order = Order::where('user_id', '=', $user->id)->with(['orderLine.product'])->findOrFail($id);
return view('layouts/order/index', compact('order'));
}
I struggle to display the following data in the view :
#foreach($order->orderLine as $key => $orderLine)
<tr>
<td>{{$orderLine->product->name}}</td>
<tr>
#endforeach
Product object is not loaded. I want to display the product name in the above loop.

Answer 1

Try to do like this:
public function show($id)
{
$user = Auth::user();
$order = Order::with(['orderLines', 'orderLines.product'])
->where('user_id', '=', $user->id)
->findOrFail($id);
return view('layouts/order/index', compact('order'));
}
class OrderLine
public function order()
{
return $this->belongsTo(\App\Order::class, 'order_id');
}
public function product()
{
return $this->belongsTo(\App\Product::class, 'product_id');
}
class Order
public function orderLines()
{
return $this->hasMany(\App\OrderLine::class);
}
Change name of orderLine to orderLines because order has many orderLines.
And in your blade:
#foreach($order->orderLines as $orderLine)
<tr>
<td>{{$orderLine['product']->title}}</td>
<tr>
#endforeach

Answer 2

Hello Dezaley and welcome to StackOverflow!
Let's investigate your problem.
As far as I can see you are selecting the model in the wrong way. Let me help you:
$order = Order::where(['id' => $id, 'user_id' => $user->id])->with('orderLine.product')->firstOrFail();

Answer 3

The answer from mare96, who was very friendly to help me, is working. However, I found out someting.
You can implement as (mare96 solution)
public function show($id)
{
$user = Auth::user();
$order = Order::with(['orderLines', 'orderLines.product'])
->where('user_id', '=', $user->id)
->findOrFail($id);
return view('layouts/order/index', compact('order'));
}
#foreach($order->orderLines as $orderLine)
<tr>
<td>{{$orderLine['product']->title}}</td>
<tr>
#endforeach
In the view, I don't like the array syntax "$orderLine['product']->title". The following solution without the array is also working.
Solution is below :
public function show($id)
{
$user = Auth::user();
$order = Order::with('orderLines', 'orderLines.product')
->where('user_id', '=', $user->id)
->findOrFail($id);
return view('layouts/order/index', compact('order'));
}
#foreach($order->orderLines as $orderLine)
<tr>
<td>{{$orderLine->product->title}}</td>
<tr>
#endforeach
In fact, my issue was that product was defined to null in the model, so Product was always null in the view.
Class OrderLine extends Model {
public $product = null
I remove line "public $product = null" and it's working as expected. Thanks to the people who helped me.

Answer 4

give it a try -
#foreach($order as $ordr)
<tr>
<td>{{$ordr->product_id->name}}</td>
<tr>
#endforeach