298 lines
12 KiB
PHP
298 lines
12 KiB
PHP
<?php
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/*
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* $Id$
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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.doctrine-project.org>.
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*/
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namespace Doctrine\DBAL\Driver\IBMDB2;
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class DB2Statement implements \Doctrine\DBAL\Driver\Statement
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{
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private $_stmt = null;
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private $_bindParam = array();
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/**
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* DB2_BINARY, DB2_CHAR, DB2_DOUBLE, or DB2_LONG
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* @var <type>
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*/
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static private $_typeMap = array(
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\PDO::PARAM_INT => DB2_LONG,
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\PDO::PARAM_STR => DB2_CHAR,
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);
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public function __construct($stmt)
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{
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$this->_stmt = $stmt;
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}
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/**
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* Binds a value to a corresponding named or positional
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* placeholder in the SQL statement that was used 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 $type Explicit data type for the parameter using the PDO::PARAM_* constants.
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*
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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function bindValue($param, $value, $type = null)
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{
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return $this->bindParam($param, $value, $type);
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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 PDOStatement->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 PDOStatement->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 $type Explicit data type for the parameter using the PDO::PARAM_* constants. To return
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* an INOUT parameter from a stored procedure, use the bitwise OR operator to set the
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* PDO::PARAM_INPUT_OUTPUT bits for the data_type parameter.
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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function bindParam($column, &$variable, $type = null)
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{
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$this->_bindParam[$column] =& $variable;
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if ($type && isset(self::$_typeMap[$type])) {
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$type = self::$_typeMap[$type];
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} else {
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$type = DB2_CHAR;
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}
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if (!db2_bind_param($this->_stmt, $column, "variable", DB2_PARAM_IN, $type)) {
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throw new DB2Exception(db2_stmt_errormsg());
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}
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return true;
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}
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/**
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* Closes the cursor, enabling the statement to be executed again.
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*
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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function closeCursor()
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{
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if (!$this->_stmt) {
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return false;
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}
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$this->_bindParam = array();
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db2_free_result($this->_stmt);
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$ret = db2_free_stmt($this->_stmt);
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$this->_stmt = false;
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return $ret;
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}
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/**
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* columnCount
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* Returns the number of columns in the result set
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*
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* @return integer Returns the number of columns in the result set represented
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* by the PDOStatement object. If there is no result set,
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* this method should return 0.
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*/
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function columnCount()
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{
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if (!$this->_stmt) {
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return false;
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}
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return db2_num_fields($this->_stmt);
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}
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/**
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* errorCode
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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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function errorCode()
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{
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return db2_stmt_error();
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}
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/**
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* errorInfo
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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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function errorInfo()
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{
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return array(
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0 => db2_stmt_errormsg(),
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1 => db2_stmt_error(),
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);
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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 $params An array of values with as many elements as there are
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* bound parameters in the SQL statement being executed.
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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function execute($params = null)
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{
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if (!$this->_stmt) {
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return false;
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}
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/*$retval = true;
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if ($params !== null) {
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$retval = @db2_execute($this->_stmt, $params);
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} else {
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$retval = @db2_execute($this->_stmt);
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}*/
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if ($params === null) {
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ksort($this->_bindParam);
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$params = array_values($this->_bindParam);
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}
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$retval = @db2_execute($this->_stmt, $params);
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if ($retval === false) {
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throw new DB2Exception(db2_stmt_errormsg());
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}
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return $retval;
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}
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/**
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* fetch
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*
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* @see Query::HYDRATE_* 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 Query::HYDRATE_* constants,
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* defaulting to Query::HYDRATE_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 Query::HYDRATE_ORI_* constants, defaulting to
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* Query::HYDRATE_ORI_NEXT. To request a scrollable cursor for your
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* PDOStatement object,
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* you must set the PDO::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 PDOStatement object representing a scrollable cursor for which the
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* $cursorOrientation parameter is set to Query::HYDRATE_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 PDOStatement object representing a scrollable cursor for
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* which the $cursorOrientation parameter is set to Query::HYDRATE_ORI_REL, this value
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* specifies the row to fetch relative to the cursor position before
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* PDOStatement->fetch() was called.
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*
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* @return mixed
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*/
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function fetch($fetchStyle = \PDO::FETCH_BOTH)
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{
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switch ($fetchStyle) {
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case \PDO::FETCH_BOTH:
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return db2_fetch_both($this->_stmt);
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case \PDO::FETCH_ASSOC:
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return db2_fetch_assoc($this->_stmt);
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case \PDO::FETCH_NUM:
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return db2_fetch_array($this->_stmt);
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default:
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throw new DB2Exception("Given Fetch-Style " . $fetchStyle . " is not supported.");
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}
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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 $fetchStyle Controls how the next row will be returned to the caller.
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* This value must be one of the Query::HYDRATE_* constants,
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* defaulting to Query::HYDRATE_BOTH
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*
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* @param integer $columnIndex Returns the indicated 0-indexed column when the value of $fetchStyle is
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* Query::HYDRATE_COLUMN. Defaults to 0.
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*
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* @return array
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*/
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function fetchAll($fetchStyle = \PDO::FETCH_BOTH)
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{
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$rows = array();
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while ($row = $this->fetch($fetchStyle)) {
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$rows[] = $row;
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}
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return $rows;
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}
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/**
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* fetchColumn
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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 $columnIndex 0-indexed number of the column you wish to retrieve from the row. If no
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* value is supplied, PDOStatement->fetchColumn()
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* fetches the first column.
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*
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* @return string returns a single column in the next row of a result set.
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*/
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function fetchColumn($columnIndex = 0)
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{
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$row = $this->fetch(\PDO::FETCH_NUM);
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if ($row && isset($row[$columnIndex])) {
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return $row[$columnIndex];
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}
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return false;
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}
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/**
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* rowCount
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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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function rowCount()
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{
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return (@db2_num_rows($this->_stmt))?:0;
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}
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}
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