Lookitsatravis\Listify\Listify::swapChangedAttributes PHP Метод

    public function swapChangedAttributes()
    {
        if ($this->originalAttributesLoaded === FALSE) {
            $this->swappedAttributes = $this->getAttributes();
            $this->fill($this->getOriginal());
            $this->originalAttributesLoaded = TRUE;
        } else {
            if (count($this->swappedAttributes) == 0) {
                $this->swappedAttributes = $this->getAttributes();
            }
            $this->fill($this->swappedAttributes);
            $this->originalAttributesLoaded = FALSE;
        }
    }