Implementing Eloquent Global Scopes

// 1. Define a global scope class (e.g., app/Scopes/ActiveUserScope.php)
namespace App\Scopes;

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

class ActiveUserScope implements Scope
{
    /**
     * Apply the scope to a given Eloquent query builder.
     */
    public function apply(Builder $builder, Model $model)
    {
        $builder->where('is_active', true);
    }
}

// 2. Apply the global scope to your model (e.g., App\Models\User)
namespace App\Models;

use App\Scopes\ActiveUserScope;
use Illuminate\Database\Eloquent\Model;

class User extends Model
{
    /**
     * The "booted" method of the model.
     * This is where global scopes are registered.
     */
    protected static function booted()
    {
        static::addGlobalScope(new ActiveUserScope);
    }

    // You can also define an anonymous global scope directly:
    /*
    protected static function booted()
    {
        static::addGlobalScope('age_filter', function (Builder $builder) {
            $builder->where('age', '>', 18);
        });
    }
    */
}

// Usage examples
// All queries will automatically include 'where is_active = true'
$activeUsers = App\Models\User::all();

// To remove a global scope for a specific query
$allUsers = App\Models\User::withoutGlobalScope(ActiveUserScope::class)->get();
// Or if it's an anonymous scope with a name:
// $allUsers = App\Models\User::withoutGlobalScope('age_filter')->get();

// Remove all global scopes
$allUsersUnfiltered = App\Models\User::withoutGlobalScopes()->get();