346 lines
10 KiB
PHP
346 lines
10 KiB
PHP
|
<?php
|
||
|
|
/**
|
||
|
|
* PHPExcel
|
||
|
|
*
|
||
|
|
* Copyright (c) 2006 - 2014 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 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
|
||
|
|
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
|
||
|
|
* @version ##VERSION##, ##DATE##
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* PHPExcel_CachedObjectStorage_SQLite3
|
||
|
|
*
|
||
|
|
* @category PHPExcel
|
||
|
|
* @package PHPExcel_CachedObjectStorage
|
||
|
|
* @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
|
||
|
|
*/
|
||
|
|
class PHPExcel_CachedObjectStorage_SQLite3 extends PHPExcel_CachedObjectStorage_CacheBase implements PHPExcel_CachedObjectStorage_ICache {
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Database table name
|
||
|
|
*
|
||
|
|
* @var string
|
||
|
|
*/
|
||
|
|
private $_TableName = null;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Database handle
|
||
|
|
*
|
||
|
|
* @var resource
|
||
|
|
*/
|
||
|
|
private $_DBHandle = null;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prepared statement for a SQLite3 select query
|
||
|
|
*
|
||
|
|
* @var SQLite3Stmt
|
||
|
|
*/
|
||
|
|
private $_selectQuery;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prepared statement for a SQLite3 insert query
|
||
|
|
*
|
||
|
|
* @var SQLite3Stmt
|
||
|
|
*/
|
||
|
|
private $_insertQuery;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prepared statement for a SQLite3 update query
|
||
|
|
*
|
||
|
|
* @var SQLite3Stmt
|
||
|
|
*/
|
||
|
|
private $_updateQuery;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Prepared statement for a SQLite3 delete query
|
||
|
|
*
|
||
|
|
* @var SQLite3Stmt
|
||
|
|
*/
|
||
|
|
private $_deleteQuery;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Store cell data in cache for the current cell object if it's "dirty",
|
||
|
|
* and the 'nullify' the current cell object
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
* @throws PHPExcel_Exception
|
||
|
|
*/
|
||
|
|
protected function _storeData() {
|
||
|
|
if ($this->_currentCellIsDirty && !empty($this->_currentObjectID)) {
|
||
|
|
$this->_currentObject->detach();
|
||
|
|
|
||
|
|
$this->_insertQuery->bindValue('id',$this->_currentObjectID,SQLITE3_TEXT);
|
||
|
|
$this->_insertQuery->bindValue('data',serialize($this->_currentObject),SQLITE3_BLOB);
|
||
|
|
$result = $this->_insertQuery->execute();
|
||
|
|
if ($result === false)
|
||
|
|
throw new PHPExcel_Exception($this->_DBHandle->lastErrorMsg());
|
||
|
|
$this->_currentCellIsDirty = false;
|
||
|
|
}
|
||
|
|
$this->_currentObjectID = $this->_currentObject = null;
|
||
|
|
} // function _storeData()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Add or Update a cell in cache identified by coordinate address
|
||
|
|
*
|
||
|
|
* @param string $pCoord Coordinate address of the cell to update
|
||
|
|
* @param PHPExcel_Cell $cell Cell to update
|
||
|
|
* @return PHPExcel_Cell
|
||
|
|
* @throws PHPExcel_Exception
|
||
|
|
*/
|
||
|
|
public function addCacheData($pCoord, PHPExcel_Cell $cell) {
|
||
|
|
if (($pCoord !== $this->_currentObjectID) && ($this->_currentObjectID !== null)) {
|
||
|
|
$this->_storeData();
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_currentObjectID = $pCoord;
|
||
|
|
$this->_currentObject = $cell;
|
||
|
|
$this->_currentCellIsDirty = true;
|
||
|
|
|
||
|
|
return $cell;
|
||
|
|
} // function addCacheData()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get cell at a specific coordinate
|
||
|
|
*
|
||
|
|
* @param string $pCoord Coordinate of the cell
|
||
|
|
* @throws PHPExcel_Exception
|
||
|
|
* @return PHPExcel_Cell Cell that was found, or null if not found
|
||
|
|
*/
|
||
|
|
public function getCacheData($pCoord) {
|
||
|
|
if ($pCoord === $this->_currentObjectID) {
|
||
|
|
return $this->_currentObject;
|
||
|
|
}
|
||
|
|
$this->_storeData();
|
||
|
|
|
||
|
|
$this->_selectQuery->bindValue('id',$pCoord,SQLITE3_TEXT);
|
||
|
|
$cellResult = $this->_selectQuery->execute();
|
||
|
|
if ($cellResult === FALSE) {
|
||
|
|
throw new PHPExcel_Exception($this->_DBHandle->lastErrorMsg());
|
||
|
|
}
|
||
|
|
$cellData = $cellResult->fetchArray(SQLITE3_ASSOC);
|
||
|
|
if ($cellData === FALSE) {
|
||
|
|
// Return null if requested entry doesn't exist in cache
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set current entry to the requested entry
|
||
|
|
$this->_currentObjectID = $pCoord;
|
||
|
|
|
||
|
|
$this->_currentObject = unserialize($cellData['value']);
|
||
|
|
// Re-attach this as the cell's parent
|
||
|
|
$this->_currentObject->attach($this);
|
||
|
|
|
||
|
|
// Return requested entry
|
||
|
|
return $this->_currentObject;
|
||
|
|
} // function getCacheData()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Is a value set 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
|
||
|
|
$this->_selectQuery->bindValue('id',$pCoord,SQLITE3_TEXT);
|
||
|
|
$cellResult = $this->_selectQuery->execute();
|
||
|
|
if ($cellResult === FALSE) {
|
||
|
|
throw new PHPExcel_Exception($this->_DBHandle->lastErrorMsg());
|
||
|
|
}
|
||
|
|
$cellData = $cellResult->fetchArray(SQLITE3_ASSOC);
|
||
|
|
|
||
|
|
return ($cellData === FALSE) ? FALSE : TRUE;
|
||
|
|
} // function isDataSet()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Delete a cell in cache identified by coordinate address
|
||
|
|
*
|
||
|
|
* @param string $pCoord Coordinate address of the cell to delete
|
||
|
|
* @throws PHPExcel_Exception
|
||
|
|
*/
|
||
|
|
public function deleteCacheData($pCoord) {
|
||
|
|
if ($pCoord === $this->_currentObjectID) {
|
||
|
|
$this->_currentObject->detach();
|
||
|
|
$this->_currentObjectID = $this->_currentObject = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Check if the requested entry exists in the cache
|
||
|
|
$this->_deleteQuery->bindValue('id',$pCoord,SQLITE3_TEXT);
|
||
|
|
$result = $this->_deleteQuery->execute();
|
||
|
|
if ($result === FALSE)
|
||
|
|
throw new PHPExcel_Exception($this->_DBHandle->lastErrorMsg());
|
||
|
|
|
||
|
|
$this->_currentCellIsDirty = FALSE;
|
||
|
|
} // function deleteCacheData()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Move a cell object from one address to another
|
||
|
|
*
|
||
|
|
* @param string $fromAddress Current address of the cell to move
|
||
|
|
* @param string $toAddress Destination address of the cell to move
|
||
|
|
* @return boolean
|
||
|
|
*/
|
||
|
|
public function moveCell($fromAddress, $toAddress) {
|
||
|
|
if ($fromAddress === $this->_currentObjectID) {
|
||
|
|
$this->_currentObjectID = $toAddress;
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_deleteQuery->bindValue('id',$toAddress,SQLITE3_TEXT);
|
||
|
|
$result = $this->_deleteQuery->execute();
|
||
|
|
if ($result === false)
|
||
|
|
throw new PHPExcel_Exception($this->_DBHandle->lastErrorMsg());
|
||
|
|
|
||
|
|
$this->_updateQuery->bindValue('toid',$toAddress,SQLITE3_TEXT);
|
||
|
|
$this->_updateQuery->bindValue('fromid',$fromAddress,SQLITE3_TEXT);
|
||
|
|
$result = $this->_updateQuery->execute();
|
||
|
|
if ($result === false)
|
||
|
|
throw new PHPExcel_Exception($this->_DBHandle->lastErrorMsg());
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
} // function moveCell()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get a list of all cell addresses currently held in cache
|
||
|
|
*
|
||
|
|
* @return string[]
|
||
|
|
*/
|
||
|
|
public function getCellList() {
|
||
|
|
if ($this->_currentObjectID !== null) {
|
||
|
|
$this->_storeData();
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = "SELECT id FROM kvp_".$this->_TableName;
|
||
|
|
$cellIdsResult = $this->_DBHandle->query($query);
|
||
|
|
if ($cellIdsResult === false)
|
||
|
|
throw new PHPExcel_Exception($this->_DBHandle->lastErrorMsg());
|
||
|
|
|
||
|
|
$cellKeys = array();
|
||
|
|
while ($row = $cellIdsResult->fetchArray(SQLITE3_ASSOC)) {
|
||
|
|
$cellKeys[] = $row['id'];
|
||
|
|
}
|
||
|
|
|
||
|
|
return $cellKeys;
|
||
|
|
} // function getCellList()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Clone the cell collection
|
||
|
|
*
|
||
|
|
* @param PHPExcel_Worksheet $parent The new worksheet
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function copyCellCollection(PHPExcel_Worksheet $parent) {
|
||
|
|
$this->_currentCellIsDirty;
|
||
|
|
$this->_storeData();
|
||
|
|
|
||
|
|
// Get a new id for the new table name
|
||
|
|
$tableName = str_replace('.','_',$this->_getUniqueID());
|
||
|
|
if (!$this->_DBHandle->exec('CREATE TABLE kvp_'.$tableName.' (id VARCHAR(12) PRIMARY KEY, value BLOB)
|
||
|
|
AS SELECT * FROM kvp_'.$this->_TableName))
|
||
|
|
throw new PHPExcel_Exception($this->_DBHandle->lastErrorMsg());
|
||
|
|
|
||
|
|
// Copy the existing cell cache file
|
||
|
|
$this->_TableName = $tableName;
|
||
|
|
} // function copyCellCollection()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Clear the cell collection and disconnect from our parent
|
||
|
|
*
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function unsetWorksheetCells() {
|
||
|
|
if(!is_null($this->_currentObject)) {
|
||
|
|
$this->_currentObject->detach();
|
||
|
|
$this->_currentObject = $this->_currentObjectID = null;
|
||
|
|
}
|
||
|
|
// detach ourself from the worksheet, so that it can then delete this object successfully
|
||
|
|
$this->_parent = null;
|
||
|
|
|
||
|
|
// Close down the temporary cache file
|
||
|
|
$this->__destruct();
|
||
|
|
} // function unsetWorksheetCells()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Initialise this new cell collection
|
||
|
|
*
|
||
|
|
* @param PHPExcel_Worksheet $parent The worksheet for this cell collection
|
||
|
|
*/
|
||
|
|
public function __construct(PHPExcel_Worksheet $parent) {
|
||
|
|
parent::__construct($parent);
|
||
|
|
if (is_null($this->_DBHandle)) {
|
||
|
|
$this->_TableName = str_replace('.','_',$this->_getUniqueID());
|
||
|
|
$_DBName = ':memory:';
|
||
|
|
|
||
|
|
$this->_DBHandle = new SQLite3($_DBName);
|
||
|
|
if ($this->_DBHandle === false)
|
||
|
|
throw new PHPExcel_Exception($this->_DBHandle->lastErrorMsg());
|
||
|
|
if (!$this->_DBHandle->exec('CREATE TABLE kvp_'.$this->_TableName.' (id VARCHAR(12) PRIMARY KEY, value BLOB)'))
|
||
|
|
throw new PHPExcel_Exception($this->_DBHandle->lastErrorMsg());
|
||
|
|
}
|
||
|
|
|
||
|
|
$this->_selectQuery = $this->_DBHandle->prepare("SELECT value FROM kvp_".$this->_TableName." WHERE id = :id");
|
||
|
|
$this->_insertQuery = $this->_DBHandle->prepare("INSERT OR REPLACE INTO kvp_".$this->_TableName." VALUES(:id,:data)");
|
||
|
|
$this->_updateQuery = $this->_DBHandle->prepare("UPDATE kvp_".$this->_TableName." SET id=:toId WHERE id=:fromId");
|
||
|
|
$this->_deleteQuery = $this->_DBHandle->prepare("DELETE FROM kvp_".$this->_TableName." WHERE id = :id");
|
||
|
|
} // function __construct()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Destroy this cell collection
|
||
|
|
*/
|
||
|
|
public function __destruct() {
|
||
|
|
if (!is_null($this->_DBHandle)) {
|
||
|
|
$this->_DBHandle->exec('DROP TABLE kvp_'.$this->_TableName);
|
||
|
|
$this->_DBHandle->close();
|
||
|
|
}
|
||
|
|
$this->_DBHandle = null;
|
||
|
|
} // function __destruct()
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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() {
|
||
|
|
if (!class_exists('SQLite3',FALSE)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|