Model boot() method

class User extends Model{
   public static function boot()
      { parent::boot();
        static::updating(function($model)
            {
            // do some logging
            // override some property like $model->something = transform($something);
            });
      }

}

Probably one of the most popular examples is setting some field value at the moment of creating the model object. Let’s say you want to generate UUID field at that moment.

public static function boot()
{
    parent::boot();
    self::creating(function ($model) {
      $model->uuid = (string)Uuid::generate();
    });
}