Scope with extensions

app\Models\Scopes\CountryScope.php

<?php

namespace App\Models\Scopes;

use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Scope;

class CountryScope implements Scope
{

    protected $extensions = ['WithCountry', 'WithAnyCountry', 'WithCountries'];

    /**
     * Apply the scope to a given Eloquent query builder.
     *
     * @param  \Illuminate\Database\Eloquent\Builder  $builder
     * @param  \Illuminate\Database\Eloquent\Model  $model
     * @return void
     */
    public function apply(Builder $builder, Model $model)
    {
        $country = config('app.country');
        if(!$country){
            throw new \Exception("app.country must be set");
        }
        $builder->where('country', $country);
    }

    public function extend(Builder $builder)
    {
        foreach ($this->extensions as $extension) {
            $this->{"add{$extension}"}($builder);
        }
    }

    protected function addWithCountry(Builder $builder){
        $builder->macro('withCountry', function (Builder $builder, $country) {
            return $builder->withoutGlobalScope($this)->where('country', $country);
        });
    }

    protected function addWithAnyCountry(Builder $builder){
        $builder->macro('withAnyCountry', function (Builder $builder) {
            return $builder->withoutGlobalScope($this);
        });
    }

    protected function addWithCountries(Builder $builder){
        $builder->macro('withCountries', function (Builder $builder, ...$countries) {
            return $builder->withoutGlobalScope($this)->whereIn('country', $countries);
        });
    }

}

app\Models\Traits\CountryHelper.php

<?php

namespace App\Models\Traits;

use App\Models\Scopes\CountryScope;

/**
 * @method static \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder withCountry(string $country)
 * @method static \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder withAnyCountry()
 * @method static \Illuminate\Database\Eloquent\Builder|\Illuminate\Database\Query\Builder withCountries(string ...$countries)
 */
trait CountryHelper
{
    public static function bootCountryHelper()
    {
        static::addGlobalScope(new CountryScope());
    }
}