Contao\Model::delete PHP Метод

    public function delete()
    {
        $intPk = $this->{static::$strPk};
        // Track primary key changes
        if (isset($this->arrModified[static::$strPk])) {
            $intPk = $this->arrModified[static::$strPk];
        }
        // Delete the row
        $intAffected = \Database::getInstance()->prepare("DELETE FROM " . static::$strTable . " WHERE " . static::$strPk . "=?")->execute($intPk)->affectedRows;
        if ($intAffected) {
            // Unregister the model
            \Model\Registry::getInstance()->unregister($this);
            // Remove the primary key (see #6162)
            $this->arrData[static::$strPk] = null;
        }
        return $intAffected;
    }