KT-MyPage/app/Models/BaseModel.php

<?php

namespace App\Models;

use Auth;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\DB;

/**
 * @property int|null $created_by
 */
abstract class BaseModel extends Model
{
    use HasFactory;

    const COL_NAME_ID = ColumnName::ID;
    const COL_NAME_CREATED_BY = 'created_by';
    const COL_NAME_CREATED_AT = self::CREATED_AT;
    const COL_NAME_UPDATED_AT = self::UPDATED_AT;

    public function __construct(array $attr = [])
    {
        if (Auth::check()) {
            $this->created_by = Auth::id();
        }

        parent::__construct($attr);
    }

    protected $guarded = [
        self::COL_NAME_ID,
    ];

    public static function getBuilder(string $name = 'main')
    {
        return DB::table(static::getTableName(), $name);
    }

    public static function getTableName(): string
    {
        return (new static)->getTable();
    }

    public function copy(BaseModel|User $from)
    {
        $data = $from->getAttributeKeys();

        foreach ($data as $key) {
            if ($key === ColumnName::ID && $this instanceof BaseHistory) {
                continue;
            }
            $this->$key = $from->$key;
        }
        return $this;
    }

    public function getAttributeKeys()
    {
        return array_values(array_unique(array_merge(array_keys($this->attributesToArray()), $this->hidden)));
    }

    public function isNotSavedModel(): bool
    {
        return data_get($this, self::COL_NAME_ID) === null;
    }
}