Can't display data in view from model in Laravel - php

Question

In my project I have orders which have many products and customers who have many orders. I am confused because I want to get all orders that a certain customer has and the products of each order. I messed up something somewhere and I am not sure if I set my relationships correctly. Here is my products table:
Here is my customers table:
And here is my orders table:
Here are my models:
Product:
class Product extends Model
{
public function orders()
{
return $this->belongsToMany('App\Order');
}
}
Order:
class Order extends Model
{
public function products()
{
return $this->hasMany('App\Product', 'id');
}
public function customer()
{
return $this->belongsTo('App\Customer');
}
}
Customer:
class Customer extends Model
{
public function orders()
{
return $this->hasMany('App\Order', 'id');
}
}
I get all customers from my database with App\Customer::all() in my CustomersController and pass the data in my customers.blade.php.
<h1>Customers:</h1>
#foreach($customers as $customer)
<h3>{{$customer->name}}</h3>
#foreach($customer->orders as $order)
<p>Order ID: {{$order->id}}</p>
#foreach($order->products as $product)
<p>Product title: {{$product->title}}</p>
#endforeach
#endforeach
<hr>
#endforeach
Here is the output:
If someone could explain why it doesn't output everything and give some advice if this is the way to go with the relationships, I would be very thankful.

Answer 1

Your products should belong to an order, rather than have a many-to-many relationship.
class Product extends Model
{
public function orders()
{
return $this->belongsTo('App\Order');
}
}

Answer 2

I found a solution by making a pivot table for products and orders called products_orders which holds the product_id and the order_id and making a many to many relationship between Product and Order. That is because an order may have multiple products and products may exist in multiple orders.
My pivot table products_orders:
class Product extends Model
{
public function orders()
{
return $this->belongsToMany('App\Order');
}
}
class Order extends Model
{
public function products()
{
return $this->belongsToMany('App\Product', 'products_orders');
}
public function customer()
{
return $this->belongsTo('App\Customer');
}
}
I made a one to many relationship (customer_id in orders table) for Customer and Order and now everything works fine.
class Customer extends Model
{
public function orders()
{
return $this->hasMany('App\Order');
}
}