439 lines
19 KiB
PHP
439 lines
19 KiB
PHP
<?php
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/*
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* $Id: Statement.php 1532 2007-05-31 17:45:07Z zYne $
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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, see
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* <http://www.phpdoctrine.org>.
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*/
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#namespace Doctrine::DBAL;
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/**
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* A thin wrapper around PDOStatement.
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*
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.phpdoctrine.org
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* @since 1.0
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* @version $Revision: 1532 $
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* @todo Do we seriously need this wrapper?
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*/
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class Doctrine_DBAL_Statement
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{
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/**
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* @var Doctrine_Connection $conn Doctrine_Connection object, every connection
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* statement holds an instance of Doctrine_Connection
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*/
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protected $_conn;
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/**
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* @var Doctrine::DBAL::Driver::Statement
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*/
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protected $_stmt;
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/**
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* constructor
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*
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* @param Doctrine_Connection $conn Doctrine_Connection object, every connection
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* statement holds an instance of Doctrine_Connection
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* @param mixed $stmt
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*/
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public function __construct(Doctrine_Connection $conn, $stmt)
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{
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$this->_conn = $conn;
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$this->_stmt = $stmt;
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if ($stmt === false) {
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throw new Doctrine_Exception('Unknown statement object given.');
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}
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}
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/**
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* getConnection
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* returns the connection object this statement uses
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*
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* @return Doctrine_Connection
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*/
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public function getConnection()
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{
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return $this->_conn;
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}
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public function getStatement()
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{
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return $this->_stmt;
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}
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public function getQuery()
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{
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return $this->_stmt->queryString;
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}
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/**
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* Bind a column to a PHP variable
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*
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* @param mixed $column Number of the column (1-indexed) or name of the column in the result set.
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* If using the column name, be aware that the name should match
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* the case of the column, as returned by the driver.
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*
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* @param string $param Name of the PHP variable to which the column will be bound.
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* @param integer $type Data type of the parameter, specified by the Doctrine::PARAM_* constants.
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* @return boolean Returns TRUE on success or FALSE on failure
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*/
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public function bindColumn($column, $param, $type = null)
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{
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if ($type === null) {
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return $this->_stmt->bindColumn($column, $param);
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} else {
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return $this->_stmt->bindColumn($column, $param, $type);
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}
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}
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/**
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* bindValue
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* Binds a value to a corresponding named or question mark
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* placeholder in the SQL statement that was use to prepare the statement.
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*
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* @param mixed $param Parameter identifier. For a prepared statement using named placeholders,
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* this will be a parameter name of the form :name. For a prepared statement
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* using question mark placeholders, this will be the 1-indexed position of the parameter
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*
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* @param mixed $value The value to bind to the parameter.
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* @param integer $type Explicit data type for the parameter using the Doctrine::PARAM_* constants.
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*
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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public function bindValue($param, $value, $type = null)
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{
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if ($type === null) {
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return $this->_stmt->bindValue($param, $value);
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} else {
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return $this->_stmt->bindValue($param, $value, $type);
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}
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}
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/**
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* Binds a PHP variable to a corresponding named or question mark placeholder in the
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* SQL statement that was use to prepare the statement. Unlike Doctrine_Adapter_Statement_Interface->bindValue(),
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* the variable is bound as a reference and will only be evaluated at the time
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* that Doctrine_Adapter_Statement_Interface->execute() is called.
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*
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* Most parameters are input parameters, that is, parameters that are
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* used in a read-only fashion to build up the query. Some drivers support the invocation
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* of stored procedures that return data as output parameters, and some also as input/output
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* parameters that both send in data and are updated to receive it.
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*
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* @param mixed $param Parameter identifier. For a prepared statement using named placeholders,
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* this will be a parameter name of the form :name. For a prepared statement
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* using question mark placeholders, this will be the 1-indexed position of the parameter
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*
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* @param mixed $variable Name of the PHP variable to bind to the SQL statement parameter.
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*
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* @param integer $type Explicit data type for the parameter using the Doctrine::PARAM_* constants. To return
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* an INOUT parameter from a stored procedure, use the bitwise OR operator to set the
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* Doctrine::PARAM_INPUT_OUTPUT bits for the data_type parameter.
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*
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* @param integer $length Length of the data type. To indicate that a parameter is an OUT parameter
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* from a stored procedure, you must explicitly set the length.
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* @param mixed $driverOptions
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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public function bindParam($column, &$variable, $type = null, $length = null, $driverOptions = array())
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{
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if ($type === null) {
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return $this->_stmt->bindParam($column, $variable);
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} else {
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return $this->_stmt->bindParam($column, $variable, $type, $length, $driverOptions);
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}
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}
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/**
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* Closes the cursor, enabling the statement to be executed again.
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*
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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public function closeCursor()
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{
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return $this->_stmt->closeCursor();
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}
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/**
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* Returns the number of columns in the result set
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*
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* @return integer Returns the number of columns in the result set represented
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* by the Doctrine_Adapter_Statement_Interface object. If there is no result set,
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* this method should return 0.
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*/
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public function columnCount()
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{
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return $this->_stmt->columnCount();
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}
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/**
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* Fetch the SQLSTATE associated with the last operation on the statement handle
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*
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* @see Doctrine_Adapter_Interface::errorCode()
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* @return string error code string
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*/
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public function errorCode()
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{
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return $this->_stmt->errorCode();
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}
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/**
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* Fetch extended error information associated with the last operation on the statement handle
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*
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* @see Doctrine_Adapter_Interface::errorInfo()
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* @return array error info array
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*/
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public function errorInfo()
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{
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return $this->_stmt->errorInfo();
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}
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/**
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* Executes a prepared statement
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*
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* If the prepared statement included parameter markers, you must either:
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* call PDOStatement->bindParam() to bind PHP variables to the parameter markers:
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* bound variables pass their value as input and receive the output value,
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* if any, of their associated parameter markers or pass an array of input-only
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* parameter values
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*
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*
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* @param array $params An array of values with as many elements as there are
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* bound parameters in the SQL statement being executed.
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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public function execute($params = null)
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{
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try {
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//$event = new Doctrine_Event($this, Doctrine_Event::STMT_EXECUTE, $this->getQuery(), $params);
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//$this->_conn->getListener()->preStmtExecute($event);
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$result = true;
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//if ( ! $event->skipOperation) {
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$result = $this->_stmt->execute($params);
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//$this->_conn->incrementQueryCount();
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//}
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//$this->_conn->getListener()->postStmtExecute($event);
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return $result;
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} catch (PDOException $e) {
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$this->_conn->rethrowException($e, $this);
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}
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return false;
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}
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/**
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* fetch
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*
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* @see Doctrine::FETCH_* constants
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* @param integer $fetchStyle Controls how the next row will be returned to the caller.
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* This value must be one of the Doctrine::FETCH_* constants,
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* defaulting to Doctrine::FETCH_BOTH
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*
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* @param integer $cursorOrientation For a PDOStatement object representing a scrollable cursor,
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* this value determines which row will be returned to the caller.
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* This value must be one of the Doctrine::FETCH_ORI_* constants, defaulting to
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* Doctrine::FETCH_ORI_NEXT. To request a scrollable cursor for your
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* Doctrine_Adapter_Statement_Interface object,
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* you must set the Doctrine::ATTR_CURSOR attribute to Doctrine::CURSOR_SCROLL when you
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* prepare the SQL statement with Doctrine_Adapter_Interface->prepare().
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*
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* @param integer $cursorOffset For a Doctrine_Adapter_Statement_Interface object representing a scrollable cursor for which the
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* $cursorOrientation parameter is set to Doctrine::FETCH_ORI_ABS, this value specifies
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* the absolute number of the row in the result set that shall be fetched.
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*
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* For a Doctrine_Adapter_Statement_Interface object representing a scrollable cursor for
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* which the $cursorOrientation parameter is set to Doctrine::FETCH_ORI_REL, this value
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* specifies the row to fetch relative to the cursor position before
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* Doctrine_Adapter_Statement_Interface->fetch() was called.
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*
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* @return mixed
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*/
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public function fetch($fetchMode = Doctrine::FETCH_BOTH,
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$cursorOrientation = Doctrine::FETCH_ORI_NEXT,
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$cursorOffset = null)
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{
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//$event = new Doctrine_Event($this, Doctrine_Event::STMT_FETCH, $this->getQuery());
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//$event->fetchMode = $fetchMode;
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//$event->cursorOrientation = $cursorOrientation;
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//$event->cursorOffset = $cursorOffset;
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//$data = $this->_conn->getListener()->preFetch($event);
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//if ( ! $event->skipOperation) {
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$data = $this->_stmt->fetch($fetchMode, $cursorOrientation, $cursorOffset);
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//}
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//$this->_conn->getListener()->postFetch($event);
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return $data;
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}
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/**
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* Returns an array containing all of the result set rows
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*
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* @param integer $fetchMode Controls how the next row will be returned to the caller.
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* This value must be one of the Doctrine::FETCH_* constants,
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* defaulting to Doctrine::FETCH_BOTH
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*
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* @param integer $columnIndex Returns the indicated 0-indexed column when the value of $fetchStyle is
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* Doctrine::FETCH_COLUMN. Defaults to 0.
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*
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* @return array
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*/
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public function fetchAll($fetchMode = Doctrine::FETCH_BOTH, $columnIndex = null)
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{
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//$event = new Doctrine_Event($this, Doctrine_Event::STMT_FETCHALL, $this->getQuery());
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//$event->fetchMode = $fetchMode;
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//$event->columnIndex = $columnIndex;
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//$this->_conn->getListener()->preFetchAll($event);
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//if ( ! $event->skipOperation) {
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if ($columnIndex !== null) {
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$data = $this->_stmt->fetchAll($fetchMode, $columnIndex);
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} else {
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$data = $this->_stmt->fetchAll($fetchMode);
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}
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//$event->data = $data;
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//}
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//$this->_conn->getListener()->postFetchAll($event);
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return $data;
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}
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/**
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* Returns a single column from the next row of a
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* result set or FALSE if there are no more rows.
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*
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* @param integer $columnIndex 0-indexed number of the column you wish to retrieve from the row. If no
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* value is supplied, Doctrine_Adapter_Statement_Interface->fetchColumn()
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* fetches the first column.
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*
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* @return string returns a single column in the next row of a result set.
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*/
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public function fetchColumn($columnIndex = 0)
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{
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return $this->_stmt->fetchColumn($columnIndex);
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}
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/**
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* Fetches the next row and returns it as an object.
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*
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* Fetches the next row and returns it as an object. This function is an alternative to
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* Doctrine_Adapter_Statement_Interface->fetch() with Doctrine::FETCH_CLASS or Doctrine::FETCH_OBJ style.
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*
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* @param string $className Name of the created class, defaults to stdClass.
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* @param array $args Elements of this array are passed to the constructor.
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*
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* @return mixed an instance of the required class with property names that correspond
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* to the column names or FALSE in case of an error.
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*/
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public function fetchObject($className = 'stdClass', $args = array())
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{
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return $this->_stmt->fetchObject($className, $args);
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}
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/**
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* Retrieve a statement attribute
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*
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* @param integer $attribute
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* @see Doctrine::ATTR_* constants
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* @return mixed the attribute value
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*/
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public function getAttribute($attribute)
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{
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return $this->_stmt->getAttribute($attribute);
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}
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/**
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* Returns metadata for a column in a result set
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*
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* @param integer $column The 0-indexed column in the result set.
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*
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* @return array Associative meta data array with the following structure:
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*
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* native_type The PHP native type used to represent the column value.
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* driver:decl_ type The SQL type used to represent the column value in the database. If the column in the result set is the result of a function, this value is not returned by PDOStatement->getColumnMeta().
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* flags Any flags set for this column.
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* name The name of this column as returned by the database.
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* len The length of this column. Normally -1 for types other than floating point decimals.
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* precision The numeric precision of this column. Normally 0 for types other than floating point decimals.
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* pdo_type The type of this column as represented by the PDO::PARAM_* constants.
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*/
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public function getColumnMeta($column)
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{
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return $this->_stmt->getColumnMeta($column);
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}
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/**
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* Advances to the next rowset in a multi-rowset statement handle
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*
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* Some database servers support stored procedures that return more than one rowset
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* (also known as a result set). The nextRowset() method enables you to access the second
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* and subsequent rowsets associated with a PDOStatement object. Each rowset can have a
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* different set of columns from the preceding rowset.
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*
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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public function nextRowset()
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{
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return $this->_stmt->nextRowset();
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}
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/**
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* rowCount() returns the number of rows affected by the last DELETE, INSERT, or UPDATE statement
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* executed by the corresponding object.
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*
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* If the last SQL statement executed by the associated Statement object was a SELECT statement,
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* some databases may return the number of rows returned by that statement. However,
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* this behaviour is not guaranteed for all databases and should not be
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* relied on for portable applications.
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*
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* @return integer Returns the number of rows.
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*/
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public function rowCount()
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{
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return $this->_stmt->rowCount();
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}
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/**
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* Set a statement attribute
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*
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* @param integer $attribute
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* @param mixed $value the value of given attribute
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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public function setAttribute($attribute, $value)
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{
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return $this->_stmt->setAttribute($attribute, $value);
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}
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/**
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* Set the default fetch mode for this statement
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*
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* @param integer $mode The fetch mode must be one of the Doctrine::FETCH_* constants.
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* @return boolean Returns 1 on success or FALSE on failure.
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*/
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public function setFetchMode($mode, $arg1 = null, $arg2 = null)
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{
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return $this->_stmt->setFetchMode($mode, $arg1, $arg2);
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}
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}
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