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246
lib/symfony/vendor/creole/drivers/odbc/ODBCPreparedStatement.php
vendored
Executable file
246
lib/symfony/vendor/creole/drivers/odbc/ODBCPreparedStatement.php
vendored
Executable file
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<?php
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/*
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* $Id: ODBCPreparedStatement.php,v 1.4 2005/11/13 01:29:01 gamr Exp $
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information please see
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* <http://creole.phpdb.org>.
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*/
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require_once 'creole/PreparedStatement.php';
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require_once 'creole/common/PreparedStatementCommon.php';
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require_once 'creole/util/Lob.php';
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/**
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* ODBC specific PreparedStatement functions.
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*
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* @author Dave Lawson <dlawson@masterytech.com>
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* @version $Revision: 1.4 $
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* @package creole.drivers.odbc
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*/
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class ODBCPreparedStatement extends PreparedStatementCommon implements PreparedStatement
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{
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/**
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* This does nothing since ODBC natively supports prepared statements.
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* @see PreparedStatementCommon::replaceParams()
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*/
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protected function replaceParams()
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{
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if ($this->conn->getAdapter()->emulatePrepareStmt())
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return parent::replaceParams();
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else
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return $this->sql;
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}
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/**
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* Internal function to call native ODBC prepare/execute functions.
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*/
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protected function _execute($sql, $params, $fetchmode, $isupdate)
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{
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if ($this->resultSet)
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{
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$this->resultSet->close();
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$this->resultSet = null;
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}
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$this->updateCount = null;
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if ($this->conn->getAdapter()->emulatePrepareStmt())
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{
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$stmt = @odbc_exec($this->conn->getResource(), $sql);
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$ret = ($stmt !== false);
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}
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else
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{
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// Trim surrounding quotes added from default set methods.
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// Exception: for LOB-based parameters, odbc_execute() will
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// accept a filename surrounded by single-quotes.
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foreach ($this->boundInVars as $idx => $var)
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{
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if ($var instanceof Lob)
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{
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$file = ($isupdate ? $var->getInputFile() : $var->getOutputFile());
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$this->boundInVars[$idx] = "'$file'";
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}
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else if (is_string($var))
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{
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$this->boundInVars[$idx] = trim($var, "\"\'");
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}
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}
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$stmt = @odbc_prepare($this->conn->getResource(), $sql);
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if ($stmt === FALSE)
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throw new SQLException('Could not prepare query', $this->conn->nativeError(), $sql);
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$ret = @odbc_execute($stmt, $this->boundInVars);
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}
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if ($ret === FALSE)
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{
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@odbc_free_result($stmt);
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throw new SQLException('Could not execute query', $this->conn->nativeError(), $sql);
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}
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return $this->conn->createResultSet(new ODBCResultResource($stmt), $fetchmode);
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}
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/**
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* @see PreparedStatement::executeQuery()
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*/
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public function executeQuery()
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{
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switch (func_num_args()) {
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case 2:
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list($params, $fetchmode) = func_get_args();
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if (!is_array($params)) {
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unset($params);
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}
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break;
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case 1:
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$params = null;
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list($fetchmode) = func_get_args();
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break;
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case 0:
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$params = null;
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$fetchmode = null;
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break;
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}
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// Set any params passed directly
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if (isset($params)) {
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for($i=0,$cnt=count($params); $i < $cnt; $i++) {
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$this->set($i+1, $params[$i]);
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}
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}
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$sql = $this->replaceParams();
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if ($this->conn->getAdapter()->hasLimitOffset())
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{
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if ($this->limit > 0 || $this->offset > 0)
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$this->conn->applyLimit($sql, $this->offset, $this->limit);
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}
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$this->resultSet = $this->_execute($sql, $params, $fetchmode, false);
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if (!$this->conn->getAdapter()->hasLimitOffset())
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{
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$this->resultSet->_setOffset($this->offset);
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$this->resultSet->_setLimit($this->limit);
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}
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return $this->resultSet;
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}
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/**
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* @see PreparedStatement::executeUpdate()
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*/
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public function executeUpdate($params = null)
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{
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// Set any params passed directly
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if ($params) {
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for($i=0,$cnt=count($params); $i < $cnt; $i++) {
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$this->set($i+1, $params[$i]);
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}
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}
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$sql = $this->replaceParams();
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$this->_execute($sql, $params, 0, true);
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$this->updateCount = $this->conn->getUpdateCount();
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return $this->updateCount;
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}
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/**
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* @see PreparedStatementCommon::escape()
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*/
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protected function escape($str)
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{
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if ($this->conn->getAdapter()->emulatePrepareStmt())
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return $this->conn->getAdapter()->escape($str);
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// Nothing to do here. odbc_execute() takes care of escaping strings.
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return $str;
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}
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/**
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* @see PreparedStatement::setNull()
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*/
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function setNull($paramIndex)
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{
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$this->sql_cache_valid = false;
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$this->boundInVars[$paramIndex] = null;
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}
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/**
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* @see PreparedStatement::setBlob()
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*/
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function setBlob($paramIndex, $blob)
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{
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if ($this->conn->getAdapter()->emulatePrepareStmt())
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return parent::setBlob($paramIndex, $blob);
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$this->sql_cache_valid = false;
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if ($blob === null)
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{
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$this->setNull($paramIndex);
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return;
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}
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if ($blob instanceof Blob)
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{
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if ($blob->isFromFile() && !$blob->isModified())
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{
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$this->boundInVars[$paramIndex] = $blob;
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return;
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}
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$blob = $blob->__toString();
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}
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$this->boundInVars[$paramIndex] = "'" . $this->escape($blob) . "'";
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}
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/**
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* @see PreparedStatement::setClob()
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*/
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function setClob($paramIndex, $clob)
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{
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if ($this->conn->getAdapter()->emulatePrepareStmt())
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return parent::setClob($paramIndex, $clob);
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$this->sql_cache_valid = false;
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if ($clob === null)
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{
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$this->setNull($paramIndex);
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return;
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}
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if ($clob instanceof Clob)
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{
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if ($clob->isFromFile() && !$clob->isModified())
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{
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$this->boundInVars[$paramIndex] = $clob;
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return;
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}
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$clob = $clob->__toString();
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}
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$this->boundInVars[$paramIndex] = "'" . $this->escape($clob) . "'";
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}
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}
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