Sokil\Mongo\Document::validate PHP Method

    public function validate()
    {
        if ($this->triggerEvent('beforeValidate')->isCancelled()) {
            return $this;
        }
        if (!$this->isValid()) {
            $exception = new InvalidDocumentException('Document not valid');
            $exception->setDocument($this);
            $this->triggerEvent('validateError');
            throw $exception;
        }
        $this->triggerEvent('afterValidate');
        return $this;
    }