/**
  * Set the form model object from the builder's model.
  *
  * @param SetDefaultParameters $command
  */
 public function handle()
 {
     /*
      * Set the form mode according
      * to the builder's entry.
      */
     if (!$this->builder->getFormMode()) {
         $this->builder->setFormMode($this->builder->getFormEntryId() || $this->builder->getEntry() ? 'edit' : 'create');
     }
     /*
      * Next we'll loop each property and look for a handler.
      */
     $reflection = new \ReflectionClass($this->builder);
     /* @var \ReflectionProperty $property */
     foreach ($reflection->getProperties(\ReflectionProperty::IS_PROTECTED) as $property) {
         if (in_array($property->getName(), $this->skips)) {
             continue;
         }
         /*
          * If there is no getter then skip it.
          */
         if (!method_exists($this->builder, $method = 'get' . ucfirst($property->getName()))) {
             continue;
         }
         /*
          * If the parameter already
          * has a value then skip it.
          */
         if ($this->builder->{$method}()) {
             continue;
         }
         /*
          * Check if we can transform the
          * builder property into a handler.
          * If it exists, then go ahead and use it.
          */
         $handler = str_replace('FormBuilder', 'Form' . ucfirst($property->getName()), get_class($this->builder));
         if (class_exists($handler)) {
             /*
              * Make sure the handler is
              * formatted properly.
              */
             if (!str_contains($handler, '@')) {
                 $handler .= '@handle';
             }
             $this->builder->{'set' . ucfirst($property->getName())}($handler);
             continue;
         }
         /*
          * If the handler does not exist and
          * we have a default handler, use it.
          */
         if ($default = array_get($this->defaults, $property->getName())) {
             $this->builder->{'set' . ucfirst($property->getName())}($default);
         }
     }
 }