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====== Eloquent для чайников ======

<code php>
use Illuminate\Database\Eloquent\Model;

class Post extends Model
{
      /**
      * Get the publisher for this model.
      */
      public function publisher()
      {
          # ( $modelClass , $foreign_key , $object_id )
          return $this->belongsTo(User::class, 'user_id', 'id');
      }
}
</code>

Расширяем возможности builder'ов
<code php>
namespace App\QueryBuilders;

use App\Models\User;
use Carbon\CarbonImmutable;
use Illuminate\Database\Eloquent\Builder;

/**
 * @template TModelClass
 * @extends Builder<TModelClass>
 */
class ChatLineQueryBuilder extends Builder
{
    public function forToday(): self
    {
        return $this->whereDay('day', CarbonImmutable::now());
    }

    public function forUser(User $user): self
    {
        return $this->where('user_id', $user->id);
    }
}
</code>

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