how to retrieve data using relationship in laravel - php

Question

I'm trying to retrieve data using relationship in laravel and I'm getting this error all the time.
Column not found: 1054 Unknown column 'orders.customers_id'
in 'where clause' (SQL: select * from orders where
orders.customers_id in (1, 2, 3, 4, 5, 6, 7, 8, 9, 10))
before this I was using these codes:
$data = DB::table('customers')
->join('orders', 'orders.customer_id', 'customers.id')
->get();
// convert to json string
$data = json_decode(json_encode($data), true);
return $data;
and it return the exactly result I want which is:
Here is my customers table:
orders table
Orders
class Orders extends Model
{
public function customer(){
return $this->belongsTo(Customers::class);
}
}
Customers
class Customers extends Model
{
public function order(){
return $this->hasMany(Orders::class);
}
DataController
class DataController extends Controller
{
public function all()
{
$All = Customers::with('order','order.customer_id')->paginate(10);
return response()->json([
'code' => 0,
'success' => true,
'data' => $All,
'pagination' => [
'current_page' => $All->currentPage(),
'last_page' => $All->lastPage(),
'prev_page_url' => $All->previousPageUrl(),
'next_page_url' => $All->nextPageUrl(),
'per_page' => $All->perPage(),
'total' => $All->total(),
'count' => $All->count(),
]
], 200);

Answer 1

Could you try this one
Order Model
class Orders extends Model
{
public function customer(){
return $this->belongsTo(Customers::class, 'customer_id');
}
}
DataController
class DataController extends Controller
{
public function all()
{
$All = Customers::order()->paginate(10);
return response()->json([
'code' => 0,
'success' => true,
'data' => $All,
'pagination' => [
'current_page' => $All->currentPage(),
'last_page' => $All->lastPage(),
'prev_page_url' => $All->previousPageUrl(),
'next_page_url' => $All->nextPageUrl(),
'per_page' => $All->perPage(),
'total' => $All->total(),
'count' => $All->count(),
]
], 200);
I just put the foreign key in the model already. I'm not entirely sure if its supposed to be in Order Model or in Customer Model either way try those both.
Hope it helps!

Answer 2

Remove order.customer_id from Customers::with('order','order.customer_id')->paginate(10);
So it should be
Customers::with('orders')->paginate(10);
Also as a customer can have many orders it is best to name your relation as orders
class Customers extends Model
{
public function orders()
{
return $this->hasMany(Orders::class);
}
}

Answer 3

In my controller
$All = Customers::with('order')->paginate(10);
return response()->json([
'code' => 0,
'success' => true,
'data' =>$All
], 200);
Customers model
class Customers extends Model
{
public function order(){
return $this->hasMany(Orders::class,'customer_id','id');
}
}
Orders model
class Orders extends Model
{
public function customers(){
return $this->belongsTo(Customers::class,'customer_id','id');
}
}
and its works.
But there is still got one thing which I'm not understand. Its works either I define the relationship in Customers model or Orders model or define the relationship in both