class TranslationString

class TranslationString extends StringBase {
    
    /**
     * The language code.
     *
     * @var string
     */
    public $language;
    
    /**
     * The string translation.
     *
     * @var string
     */
    public $translation;
    
    /**
     * Integer indicating whether this string is customized.
     *
     * @var int
     */
    public $customized;
    
    /**
     * Boolean indicating whether the string object is new.
     *
     * @var bool
     */
    protected $isNew;
    
    /**
     * {@inheritdoc}
     */
    public function __construct($values = []) {
        parent::__construct($values);
        if (!isset($this->isNew)) {
            // We mark the string as not new if it is a complete translation.
            // This will work when loading from database, otherwise the storage
            // controller that creates the string object must handle it.
            $this->isNew = !$this->isTranslation();
        }
    }
    
    /**
     * Sets the string as customized / not customized.
     *
     * @param bool $customized
     *   (optional) Whether the string is customized or not. Defaults to TRUE.
     *
     * @return $this
     *   The called object.
     */
    public function setCustomized($customized = TRUE) {
        $this->customized = $customized ? LOCALE_CUSTOMIZED : LOCALE_NOT_CUSTOMIZED;
        return $this;
    }
    
    /**
     * {@inheritdoc}
     */
    public function isSource() {
        return FALSE;
    }
    
    /**
     * {@inheritdoc}
     */
    public function isTranslation() {
        return !empty($this->lid) && !empty($this->language) && isset($this->translation);
    }
    
    /**
     * {@inheritdoc}
     */
    public function getString() {
        return $this->translation ?? '';
    }
    
    /**
     * {@inheritdoc}
     */
    public function setString($string) {
        $this->translation = $string;
        return $this;
    }
    
    /**
     * {@inheritdoc}
     */
    public function isNew() {
        return $this->isNew;
    }
    
    /**
     * {@inheritdoc}
     */
    public function save() {
        parent::save();
        $this->isNew = FALSE;
        return $this;
    }
    
    /**
     * {@inheritdoc}
     */
    public function delete() {
        parent::delete();
        $this->isNew = TRUE;
        return $this;
    }

}