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diff --git a/admin/survey/excel/PHPExcel/CachedObjectStorage/CacheBase.php b/admin/survey/excel/PHPExcel/CachedObjectStorage/CacheBase.php
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-<?php
-/**
- * PHPExcel
- *
- * Copyright (c) 2006 - 2012 PHPExcel
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * @category PHPExcel
- * @package PHPExcel_CachedObjectStorage
- * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
- * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
- * @version 1.7.8, 2012-10-12
- */
-
-
-/**
- * PHPExcel_CachedObjectStorage_CacheBase
- *
- * @category PHPExcel
- * @package PHPExcel_CachedObjectStorage
- * @copyright Copyright (c) 2006 - 2012 PHPExcel (http://www.codeplex.com/PHPExcel)
- */
-abstract class PHPExcel_CachedObjectStorage_CacheBase {
-
- /**
- * Parent worksheet
- *
- * @var PHPExcel_Worksheet
- */
- protected $_parent;
-
- /**
- * The currently active Cell
- *
- * @var PHPExcel_Cell
- */
- protected $_currentObject = null;
-
- /**
- * Coordinate address of the currently active Cell
- *
- * @var string
- */
- protected $_currentObjectID = null;
-
-
- /**
- * Flag indicating whether the currently active Cell requires saving
- *
- * @var boolean
- */
- protected $_currentCellIsDirty = true;
-
- /**
- * An array of cells or cell pointers for the worksheet cells held in this cache,
- * and indexed by their coordinate address within the worksheet
- *
- * @var array of mixed
- */
- protected $_cellCache = array();
-
-
- /**
- * Initialise this new cell collection
- *
- * @param PHPExcel_Worksheet $parent The worksheet for this cell collection
- */
- public function __construct(PHPExcel_Worksheet $parent) {
- // Set our parent worksheet.
- // This is maintained within the cache controller to facilitate re-attaching it to PHPExcel_Cell objects when
- // they are woken from a serialized state
- $this->_parent = $parent;
- } // function __construct()
-
-
- /**
- * Is a value set in the current PHPExcel_CachedObjectStorage_ICache for an indexed cell?
- *
- * @param string $pCoord Coordinate address of the cell to check
- * @return boolean
- */
- public function isDataSet($pCoord) {
- if ($pCoord === $this->_currentObjectID) {
- return true;
- }
- // Check if the requested entry exists in the cache
- return isset($this->_cellCache[$pCoord]);
- } // function isDataSet()
-
-
- /**
- * Add or Update a cell in cache
- *
- * @param PHPExcel_Cell $cell Cell to update
- * @return void
- * @throws Exception
- */
- public function updateCacheData(PHPExcel_Cell $cell) {
- return $this->addCacheData($cell->getCoordinate(),$cell);
- } // function updateCacheData()
-
-
- /**
- * Delete a cell in cache identified by coordinate address
- *
- * @param string $pCoord Coordinate address of the cell to delete
- * @throws Exception
- */
- public function deleteCacheData($pCoord) {
- if ($pCoord === $this->_currentObjectID) {
- $this->_currentObject->detach();
- $this->_currentObjectID = $this->_currentObject = null;
- }
-
- if (is_object($this->_cellCache[$pCoord])) {
- $this->_cellCache[$pCoord]->detach();
- unset($this->_cellCache[$pCoord]);
- }
- $this->_currentCellIsDirty = false;
- } // function deleteCacheData()
-
-
- /**
- * Get a list of all cell addresses currently held in cache
- *
- * @return array of string
- */
- public function getCellList() {
- return array_keys($this->_cellCache);
- } // function getCellList()
-
-
- /**
- * Sort the list of all cell addresses currently held in cache by row and column
- *
- * @return void
- */
- public function getSortedCellList() {
- $sortKeys = array();
- foreach ($this->getCellList() as $coord) {
- list($column,$row) = sscanf($coord,'%[A-Z]%d');
- $sortKeys[sprintf('%09d%3s',$row,$column)] = $coord;
- }
- ksort($sortKeys);
-
- return array_values($sortKeys);
- } // function sortCellList()
-
-
-
- /**
- * Get highest worksheet column and highest row that have cell records
- *
- * @return array Highest column name and highest row number
- */
- public function getHighestRowAndColumn()
- {
- // Lookup highest column and highest row
- $col = array('A' => '1A');
- $row = array(1);
- foreach ($this->getCellList() as $coord) {
- list($c,$r) = sscanf($coord,'%[A-Z]%d');
- $row[$r] = $r;
- $col[$c] = strlen($c).$c;
- }
- if (!empty($row)) {
- // Determine highest column and row
- $highestRow = max($row);
- $highestColumn = substr(max($col),1);
- }
-
- return array( 'row' => $highestRow,
- 'column' => $highestColumn
- );
- }
-
-
- /**
- * Get highest worksheet column
- *
- * @return string Highest column name
- */
- public function getHighestColumn()
- {
- $colRow = $this->getHighestRowAndColumn();
- return $colRow['column'];
- }
-
- /**
- * Get highest worksheet row
- *
- * @return int Highest row number
- */
- public function getHighestRow()
- {
- $colRow = $this->getHighestRowAndColumn();
- return $colRow['row'];
- }
-
-
- /**
- * Generate a unique ID for cache referencing
- *
- * @return string Unique Reference
- */
- protected function _getUniqueID() {
- if (function_exists('posix_getpid')) {
- $baseUnique = posix_getpid();
- } else {
- $baseUnique = mt_rand();
- }
- return uniqid($baseUnique,true);
- }
-
- /**
- * Clone the cell collection
- *
- * @param PHPExcel_Worksheet $parent The new worksheet
- * @return void
- */
- public function copyCellCollection(PHPExcel_Worksheet $parent) {
- $this->_parent = $parent;
- if (($this->_currentObject !== NULL) && (is_object($this->_currentObject))) {
- $this->_currentObject->attach($parent);
- }
- } // function copyCellCollection()
-
-
- /**
- * Identify whether the caching method is currently available
- * Some methods are dependent on the availability of certain extensions being enabled in the PHP build
- *
- * @return boolean
- */
- public static function cacheMethodIsAvailable() {
- return true;
- }
-
-}