www.gusucode.com > Flarum开源的PHP国外手机版论坛 0.1 Beta2 源码程序 > Flarum_v0.1.beta2/flarum/vendor/doctrine/dbal/lib/Doctrine/DBAL/Statement.php
<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\DBAL;
use PDO;
use Doctrine\DBAL\Types\Type;
use Doctrine\DBAL\Driver\Statement as DriverStatement;
/**
* A thin wrapper around a Doctrine\DBAL\Driver\Statement that adds support
* for logging, DBAL mapping types, etc.
*
* @author Roman Borschel <roman@code-factory.org>
* @since 2.0
*/
class Statement implements \IteratorAggregate, DriverStatement
{
/**
* The SQL statement.
*
* @var string
*/
protected $sql;
/**
* The bound parameters.
*
* @var array
*/
protected $params = array();
/**
* The parameter types.
*
* @var array
*/
protected $types = array();
/**
* The underlying driver statement.
*
* @var \Doctrine\DBAL\Driver\Statement
*/
protected $stmt;
/**
* The underlying database platform.
*
* @var \Doctrine\DBAL\Platforms\AbstractPlatform
*/
protected $platform;
/**
* The connection this statement is bound to and executed on.
*
* @var \Doctrine\DBAL\Connection
*/
protected $conn;
/**
* Creates a new <tt>Statement</tt> for the given SQL and <tt>Connection</tt>.
*
* @param string $sql The SQL of the statement.
* @param \Doctrine\DBAL\Connection $conn The connection on which the statement should be executed.
*/
public function __construct($sql, Connection $conn)
{
$this->sql = $sql;
$this->stmt = $conn->getWrappedConnection()->prepare($sql);
$this->conn = $conn;
$this->platform = $conn->getDatabasePlatform();
}
/**
* Binds a parameter value to the statement.
*
* The value can optionally be bound with a PDO binding type or a DBAL mapping type.
* If bound with a DBAL mapping type, the binding type is derived from the mapping
* type and the value undergoes the conversion routines of the mapping type before
* being bound.
*
* @param string $name The name or position of the parameter.
* @param mixed $value The value of the parameter.
* @param mixed $type Either a PDO binding type or a DBAL mapping type name or instance.
*
* @return boolean TRUE on success, FALSE on failure.
*/
public function bindValue($name, $value, $type = null)
{
$this->params[$name] = $value;
$this->types[$name] = $type;
if ($type !== null) {
if (is_string($type)) {
$type = Type::getType($type);
}
if ($type instanceof Type) {
$value = $type->convertToDatabaseValue($value, $this->platform);
$bindingType = $type->getBindingType();
} else {
$bindingType = $type; // PDO::PARAM_* constants
}
return $this->stmt->bindValue($name, $value, $bindingType);
} else {
return $this->stmt->bindValue($name, $value);
}
}
/**
* Binds a parameter to a value by reference.
*
* Binding a parameter by reference does not support DBAL mapping types.
*
* @param string $name The name or position of the parameter.
* @param mixed $var The reference to the variable to bind.
* @param integer $type The PDO binding type.
* @param integer|null $length Must be specified when using an OUT bind
* so that PHP allocates enough memory to hold the returned value.
*
* @return boolean TRUE on success, FALSE on failure.
*/
public function bindParam($name, &$var, $type = PDO::PARAM_STR, $length = null)
{
return $this->stmt->bindParam($name, $var, $type, $length);
}
/**
* Executes the statement with the currently bound parameters.
*
* @param array|null $params
*
* @return boolean TRUE on success, FALSE on failure.
*
* @throws \Doctrine\DBAL\DBALException
*/
public function execute($params = null)
{
if (is_array($params)) {
$this->params = $params;
}
$logger = $this->conn->getConfiguration()->getSQLLogger();
if ($logger) {
$logger->startQuery($this->sql, $this->params, $this->types);
}
try {
$stmt = $this->stmt->execute($params);
} catch (\Exception $ex) {
throw DBALException::driverExceptionDuringQuery(
$this->conn->getDriver(),
$ex,
$this->sql,
$this->conn->resolveParams($this->params, $this->types)
);
}
if ($logger) {
$logger->stopQuery();
}
$this->params = array();
$this->types = array();
return $stmt;
}
/**
* Closes the cursor, freeing the database resources used by this statement.
*
* @return boolean TRUE on success, FALSE on failure.
*/
public function closeCursor()
{
return $this->stmt->closeCursor();
}
/**
* Returns the number of columns in the result set.
*
* @return integer
*/
public function columnCount()
{
return $this->stmt->columnCount();
}
/**
* Fetches the SQLSTATE associated with the last operation on the statement.
*
* @return string
*/
public function errorCode()
{
return $this->stmt->errorCode();
}
/**
* Fetches extended error information associated with the last operation on the statement.
*
* @return array
*/
public function errorInfo()
{
return $this->stmt->errorInfo();
}
/**
* {@inheritdoc}
*/
public function setFetchMode($fetchMode, $arg2 = null, $arg3 = null)
{
if ($arg2 === null) {
return $this->stmt->setFetchMode($fetchMode);
} elseif ($arg3 === null) {
return $this->stmt->setFetchMode($fetchMode, $arg2);
}
return $this->stmt->setFetchMode($fetchMode, $arg2, $arg3);
}
/**
* Required by interface IteratorAggregate.
*
* {@inheritdoc}
*/
public function getIterator()
{
return $this->stmt;
}
/**
* Fetches the next row from a result set.
*
* @param integer|null $fetchMode
*
* @return mixed The return value of this function on success depends on the fetch type.
* In all cases, FALSE is returned on failure.
*/
public function fetch($fetchMode = null)
{
return $this->stmt->fetch($fetchMode);
}
/**
* Returns an array containing all of the result set rows.
*
* @param integer|null $fetchMode
* @param mixed $fetchArgument
*
* @return array An array containing all of the remaining rows in the result set.
*/
public function fetchAll($fetchMode = null, $fetchArgument = 0)
{
if ($fetchArgument !== 0) {
return $this->stmt->fetchAll($fetchMode, $fetchArgument);
}
return $this->stmt->fetchAll($fetchMode);
}
/**
* Returns a single column from the next row of a result set.
*
* @param integer $columnIndex
*
* @return mixed A single column from the next row of a result set or FALSE if there are no more rows.
*/
public function fetchColumn($columnIndex = 0)
{
return $this->stmt->fetchColumn($columnIndex);
}
/**
* Returns the number of rows affected by the last execution of this statement.
*
* @return integer The number of affected rows.
*/
public function rowCount()
{
return $this->stmt->rowCount();
}
/**
* Gets the wrapped driver statement.
*
* @return \Doctrine\DBAL\Driver\Statement
*/
public function getWrappedStatement()
{
return $this->stmt;
}
}