Laravel relationships seems to not working - php

Question

I have an Item and AdvertItem objects in Laravel. I want to create a 1 to 1 relationship between an item and advert item
The item class looks like this
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Item extends Model
{
//
public function Category(){
return $this->belongsTo(Category::class);
}
public function Currency(){
return $this->hasOne(Currency::class);
}
public function AdvertItem(){
return $this->hasOne(AdvertItems::class);
}
}
and the AdvertItem class looks like this
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class AdvertItems extends Model
{
protected $guarded = [];
//
public function items(){
return $this->belongsTo(Item::class);
}
}
but when I call advertItem I only see item_id = 1 instead of item object.
Item table is created like this
class CreateItemsTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('items', function (Blueprint $table) {
$table->bigIncrements('id');
$table->string('description');
$table->unsignedBigInteger('currency_lookup_id');
$table->unsignedBigInteger('category_id')->index();
$table->unsignedBigInteger('price');
$table->string("image_path");
$table->string('sale_ind');
$table->Date('eff_from');
$table->Date('eff_to');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('item');
}
}
And advert table is created like this
class CreateAdvertItemsTable extends Migration
{
/**
* Run the migrations.
*
* #return void
*/
public function up()
{
Schema::create('advert_items', function (Blueprint $table) {
$table->bigIncrements('id');
$table->unsignedBigInteger('item_id');
$table->unsignedBigInteger('customer_id');
$table->Date('eff_from');
$table->Date('eff_to');
$table->timestamps();
});
}
/**
* Reverse the migrations.
*
* #return void
*/
public function down()
{
Schema::dropIfExists('advert_items');
}
}
please assist.

Answer 1

The following rules will assist you.
Always start relationship names with lower case. Save capitals for Classes not methods.
Models should be Singular
Pay attention to the plurality of names. Things that there should only be one of should be singular. So, in your 1:1 relationships, both relationship names should be singular.
AdvertItem class
public function item(){
return $this->belongsTo(Item::class);
}
then, if you have Item and want AdvertItem, you should load it
$item->load('advertitem');
or the other way around
$advertItem->load('item');