Contao\DC_Folder::copy PHP Метод

    public function copy($source = null, $destination = null)
    {
        if ($GLOBALS['TL_DCA'][$this->strTable]['config']['notCopyable']) {
            throw new InternalServerErrorException('Table "' . $this->strTable . '" is not copyable.');
        }
        $strFolder = \Input::get('pid', true);
        $blnDoNotRedirect = $source !== null;
        if ($source === null) {
            $source = $this->intId;
        }
        if ($destination === null) {
            $destination = str_replace(dirname($source), $strFolder, $source);
        }
        $this->isValid($source);
        $this->isValid($destination);
        if (!file_exists(TL_ROOT . '/' . $source) || !$this->isMounted($source)) {
            throw new AccessDeniedException('File or folder "' . $source . '" is not mounted or cannot be found.');
        }
        if (!file_exists(TL_ROOT . '/' . $strFolder) || !$this->isMounted($strFolder)) {
            throw new AccessDeniedException('Parent folder "' . $strFolder . '" is not mounted or is not a directory.');
        }
        // Avoid a circular reference
        if (preg_match('/^' . preg_quote($source, '/') . '/i', $strFolder)) {
            throw new InternalServerErrorException('Attempt to copy the folder "' . $source . '" to "' . $strFolder . '" (circular reference).');
        }
        /** @var SessionInterface $objSession */
        $objSession = \System::getContainer()->get('session');
        // Empty clipboard
        $arrClipboard = $objSession->get('CLIPBOARD');
        $arrClipboard[$this->strTable] = array();
        $objSession->set('CLIPBOARD', $arrClipboard);
        $this->import('Files');
        // Copy folders
        if (is_dir(TL_ROOT . '/' . $source)) {
            $count = 1;
            $new = $destination;
            // Add a suffix if the folder exists
            while (is_dir(TL_ROOT . '/' . $new) && $count < 12) {
                $new = $destination . '_' . $count++;
            }
            $destination = $new;
            $this->Files->rcopy($source, $destination);
        } else {
            $count = 1;
            $new = $destination;
            $ext = strtolower(substr($destination, strrpos($destination, '.') + 1));
            // Add a suffix if the file exists
            while (file_exists(TL_ROOT . '/' . $new) && $count < 12) {
                $new = str_replace('.' . $ext, '_' . $count++ . '.' . $ext, $destination);
            }
            $destination = $new;
            $this->Files->copy($source, $destination);
        }
        // Update the database AFTER the file has been copied
        if ($this->blnIsDbAssisted) {
            $syncSource = \Dbafs::shouldBeSynchronized($source);
            $syncTarget = \Dbafs::shouldBeSynchronized($destination);
            if ($syncSource && $syncTarget) {
                \Dbafs::copyResource($source, $destination);
            } elseif ($syncTarget) {
                \Dbafs::addResource($destination);
            }
        }
        // Call the oncopy_callback
        if (is_array($GLOBALS['TL_DCA'][$this->strTable]['config']['oncopy_callback'])) {
            foreach ($GLOBALS['TL_DCA'][$this->strTable]['config']['oncopy_callback'] as $callback) {
                if (is_array($callback)) {
                    $this->import($callback[0]);
                    $this->{$callback[0]}->{$callback[1]}($source, $destination, $this);
                } elseif (is_callable($callback)) {
                    $callback($source, $destination, $this);
                }
            }
        }
        // Add a log entry
        $this->log('File or folder "' . $source . '" has been copied to "' . $destination . '"', __METHOD__, TL_FILES);
        // Redirect
        if (!$blnDoNotRedirect) {
            // Switch to edit mode
            if (is_file(TL_ROOT . '/' . $destination)) {
                $this->redirect($this->switchToEdit($destination));
            }
            $this->redirect($this->getReferer());
        }
    }