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<?php
/*
* $Id$
*
* 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 LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* Oracle connection adapter statement class.
*
* @package Doctrine
* @subpackage Adapter
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author vadik56
* @author Miloslav Kmet <adrive-nospam@hip-hop.sk>
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.phpdoctrine.org
* @since 1.0
* @version $Rev$
*/
class Doctrine_Adapter_Statement_Oracle implements Doctrine_Adapter_Statement_Interface
{
/**
* @var string $queryString actual query string
*/
public $queryString;
/**
* @var resource $connection OCI connection handler
*/
protected $connection;
/**
* @var resource $statement OCI prepared statement
*/
protected $statement;
/**
* @var integer $executeMode OCI statement execution mode
*/
protected $executeMode = OCI_COMMIT_ON_SUCCESS;
/**
* @var array $bindParams Array of parameters bounded to a statement
*/
protected $bindParams = array();
/**
* @var array $attributes Array of attributes
*/
protected $attributes = array();
/**
* @var array $ociErrors Array of errors
*/
protected $ociErrors = array();
/**
* the constructor
*
* @param Doctrine_Adapter_Oracle $connection
* @param string $query Query string to be executed
* @param integer $executeMode OCI execute mode
*/
public function __construct( Doctrine_Adapter_Oracle $connection, $query, $executeMode)
{
$this->connection = $connection->getConnection();
$this->queryString = $query;
$this->executeMode = $executeMode;
$this->attributes[Doctrine_Core::ATTR_ERRMODE] = $connection->getAttribute(Doctrine_Core::ATTR_ERRMODE);
$this->parseQuery();
}
/**
* Bind a column to a PHP variable
*
* @param mixed $column Number of the column (1-indexed) or name of the column in the result set.
* If using the column name, be aware that the name should match
* the case of the column, as returned by the driver.
* @param string $param Name of the PHP variable to which the column will be bound.
* @param integer $type Data type of the parameter, specified by the Doctrine_Core::PARAM_* constants.
* @return boolean Returns TRUE on success or FALSE on failure
*/
public function bindColumn($column, $param, $type = null)
{
throw new Doctrine_Adapter_Exception("Unsupported");
}
/**
* Binds a value to a corresponding named or question mark
* placeholder in the SQL statement that was use to prepare the statement.
*
* @param mixed $param Parameter identifier. For a prepared statement using named placeholders,
* this will be a parameter name of the form :name. For a prepared statement
* using question mark placeholders, this will be the 1-indexed position of the parameter
*
* @param mixed $value The value to bind to the parameter.
* @param integer $type Explicit data type for the parameter using the Doctrine_Core::PARAM_* constants.
*
* @return boolean Returns TRUE on success or FALSE on failure.
*/
public function bindValue($param, $value, $type = null)
{
/**
* need to store the value internally since binding is done by reference
*/
$this->bindParams[] = $value;
$this->bindParam($param, $this->bindParams[count($this->bindParams) - 1], $type);
}
/**
* Binds a PHP variable to a corresponding named or question mark placeholder in the
* SQL statement that was use to prepare the statement. Unlike Doctrine_Adapter_Statement_Interface->bindValue(),
* the variable is bound as a reference and will only be evaluated at the time
* that Doctrine_Adapter_Statement_Interface->execute() is called.
*
* Most parameters are input parameters, that is, parameters that are
* used in a read-only fashion to build up the query. Some drivers support the invocation
* of stored procedures that return data as output parameters, and some also as input/output
* parameters that both send in data and are updated to receive it.
*
* @param mixed $param Parameter identifier. For a prepared statement using named placeholders,
* this will be a parameter name of the form :name. For a prepared statement
* using question mark placeholders, this will be the 1-indexed position of the parameter
*
* @param mixed $variable Name of the PHP variable to bind to the SQL statement parameter.
*
* @param integer $type Explicit data type for the parameter using the Doctrine_Core::PARAM_* constants. To return
* an INOUT parameter from a stored procedure, use the bitwise OR operator to set the
* Doctrine_Core::PARAM_INPUT_OUTPUT bits for the data_type parameter.
*
* @param integer $length Length of the data type. To indicate that a parameter is an OUT parameter
* from a stored procedure, you must explicitly set the length.
* @param mixed $driverOptions
* @return boolean Returns TRUE on success or FALSE on failure.
*/
public function bindParam($column, &$variable, $type = null, $length = null, $driverOptions = array())
{
if ($driverOptions || $length ) {
throw new Doctrine_Adapter_Exception('Unsupported parameters:$length, $driverOptions');
}
if ($length === null) {
$oci_length = -1;
}
$oci_type = SQLT_CHR;
switch ($type) {
case Doctrine_Core::PARAM_STR:
$oci_type = SQLT_CHR;
break;
}
if (is_integer($column)) {
$variable_name = ":oci_b_var_$column";
} else {
$variable_name = $column;
}
//print "Binding $variable to $variable_name".PHP_EOL;
$status = @oci_bind_by_name($this->statement, $variable_name, $variable, $oci_length, $oci_type);
if ($status === false) {
$this->handleError();
}
return $status;
}
/**
* Closes the cursor, enabling the statement to be executed again.
*
* @return boolean Returns TRUE on success or FALSE on failure.
*/
public function closeCursor()
{
$this->bindParams = array();
return oci_free_statement($this->statement);
}
/**
* Returns the number of columns in the result set
*
* @return integer Returns the number of columns in the result set represented
* by the Doctrine_Adapter_Statement_Interface object. If there is no result set,
* this method should return 0.
*/
public function columnCount()
{
return oci_num_fields ( $this->statement );
}
/**
* Fetch the SQLSTATE associated with the last operation on the statement handle
*
* @see Doctrine_Adapter_Interface::errorCode()
* @return string error code string
*/
public function errorCode()
{
$oci_error = $this->getOciError();
return $oci_error['code'];
}
/**
* Fetch extended error information associated with the last operation on the statement handle
*
* @see Doctrine_Adapter_Interface::errorInfo()
* @return array error info array
*/
public function errorInfo()
{
$oci_error = $this->getOciError();
return $oci_error['message'] . " : " . $oci_error['sqltext'];
}
private function getOciError()
{
if (is_resource($this->statement)) {
$oci_error = oci_error ($this->statement);
} else {
$oci_error = oci_error ();
}
if ($oci_error) {
//store the error
$this->oci_errors[] = $oci_error;
} else if (count($this->ociErrors) > 0) {
$oci_error = $this->ociErrors[count($this->ociErrors)-1];
}
return $oci_error;
}
/**
* Executes a prepared statement
*
* If the prepared statement included parameter markers, you must either:
* call PDOStatement->bindParam() to bind PHP variables to the parameter markers:
* bound variables pass their value as input and receive the output value,
* if any, of their associated parameter markers or pass an array of input-only
* parameter values
*
*
* @param array $params An array of values with as many elements as there are
* bound parameters in the SQL statement being executed.
* @return boolean Returns TRUE on success or FALSE on failure.
*/
public function execute($params = null)
{
if (is_array($params)) {
foreach ($params as $var => $value) {
$this->bindValue($var+1, $value);
}
}
$result = @oci_execute($this->statement , $this->executeMode );
if ($result === false) {
$this->handleError();
return false;
}
return true;
}
/**
* fetch
*
* @see Doctrine_Core::FETCH_* constants
* @param integer $fetchStyle Controls how the next row will be returned to the caller.
* This value must be one of the Doctrine_Core::FETCH_* constants,
* defaulting to Doctrine_Core::FETCH_BOTH
*
* @param integer $cursorOrientation For a PDOStatement object representing a scrollable cursor,
* this value determines which row will be returned to the caller.
* This value must be one of the Doctrine_Core::FETCH_ORI_* constants, defaulting to
* Doctrine_Core::FETCH_ORI_NEXT. To request a scrollable cursor for your
* Doctrine_Adapter_Statement_Interface object,
* you must set the Doctrine_Core::ATTR_CURSOR attribute to Doctrine_Core::CURSOR_SCROLL when you
* prepare the SQL statement with Doctrine_Adapter_Interface->prepare().
*
* @param integer $cursorOffset For a Doctrine_Adapter_Statement_Interface object representing a scrollable cursor for which the
* $cursorOrientation parameter is set to Doctrine_Core::FETCH_ORI_ABS, this value specifies
* the absolute number of the row in the result set that shall be fetched.
*
* For a Doctrine_Adapter_Statement_Interface object representing a scrollable cursor for
* which the $cursorOrientation parameter is set to Doctrine_Core::FETCH_ORI_REL, this value
* specifies the row to fetch relative to the cursor position before
* Doctrine_Adapter_Statement_Interface->fetch() was called.
*
* @return mixed
*/
public function fetch($fetchStyle = Doctrine_Core::FETCH_BOTH, $cursorOrientation = Doctrine_Core::FETCH_ORI_NEXT, $cursorOffset = null)
{
switch ($fetchStyle) {
case Doctrine_Core::FETCH_BOTH :
return oci_fetch_array($this->statement, OCI_BOTH + OCI_RETURN_NULLS + OCI_RETURN_LOBS);
break;
case Doctrine_Core::FETCH_ASSOC :
return oci_fetch_array($this->statement, OCI_ASSOC + OCI_RETURN_NULLS + OCI_RETURN_LOBS);
break;
case Doctrine_Core::FETCH_NUM :
return oci_fetch_array($this->statement, OCI_NUM + OCI_RETURN_NULLS + OCI_RETURN_LOBS);
break;
case Doctrine_Core::FETCH_OBJ:
return oci_fetch_object($this->statement, OCI_NUM + OCI_RETURN_NULLS + OCI_RETURN_LOBS);
break;
default:
throw new Doctrine_Adapter_Exception("This type of fetch is not supported: ".$fetchStyle);
/*
case Doctrine_Core::FETCH_BOUND:
case Doctrine_Core::FETCH_CLASS:
case FETCH_CLASSTYPE:
case FETCH_COLUMN:
case FETCH_FUNC:
case FETCH_GROUP:
case FETCH_INTO:
case FETCH_LAZY:
case FETCH_NAMED:
case FETCH_SERIALIZE:
case FETCH_UNIQUE:
case FETCH_ORI_ABS:
case FETCH_ORI_FIRST:
case FETCH_ORI_LAST:
case FETCH_ORI_NEXT:
case FETCH_ORI_PRIOR:
case FETCH_ORI_REL:
*/
}
}
/**
* Returns an array containing all of the result set rows
*
* @param integer $fetchStyle Controls how the next row will be returned to the caller.
* This value must be one of the Doctrine_Core::FETCH_* constants,
* defaulting to Doctrine_Core::FETCH_BOTH
*
* @param integer $columnIndex Returns the indicated 0-indexed column when the value of $fetchStyle is
* Doctrine_Core::FETCH_COLUMN. Defaults to 0.
*
* @return array
*/
public function fetchAll($fetchStyle = Doctrine_Core::FETCH_BOTH, $colnum=0)
{
$fetchColumn = false;
$skip = 0;
$maxrows = -1;
$data = array();
$flags = OCI_FETCHSTATEMENT_BY_ROW + OCI_ASSOC;
$int = $fetchStyle & Doctrine_Core::FETCH_COLUMN;
if ($fetchStyle == Doctrine_Core::FETCH_BOTH) {
$flags = OCI_BOTH;
} else if ($fetchStyle == Doctrine_Core::FETCH_ASSOC) {
$numberOfRows = @oci_fetch_all($this->statement, $data, $skip, $maxrows, OCI_FETCHSTATEMENT_BY_ROW + OCI_ASSOC + OCI_RETURN_LOBS);
} else if ($fetchStyle == Doctrine_Core::FETCH_NUM) {
$numberOfRows = @oci_fetch_all($this->statement, $data, $skip, $maxrows, OCI_FETCHSTATEMENT_BY_ROW + OCI_NUM + OCI_RETURN_LOBS);
} else if ($fetchStyle == Doctrine_Core::FETCH_COLUMN) {
while ($row = @oci_fetch_array ($this->statement, OCI_NUM+OCI_RETURN_LOBS)) {
$data[] = $row[$colnum];
}
} else {
throw new Doctrine_Adapter_Exception("Unsupported mode: '" . $fetchStyle . "' ");
}
return $data;
}
/**
* Returns a single column from the next row of a
* result set or FALSE if there are no more rows.
*
* @param integer $columnIndex 0-indexed number of the column you wish to retrieve from the row. If no
* value is supplied, Doctrine_Adapter_Statement_Interface->fetchColumn()
* fetches the first column.
*
* @return string returns a single column in the next row of a result set.
*/
public function fetchColumn($columnIndex = 0)
{
if ( ! is_integer($columnIndex)) {
$this->handleError(array('message'=>"columnIndex parameter should be numeric"));
return false;
}
$row = $this->fetch(Doctrine_Core::FETCH_NUM);
return $row[$columnIndex];
}
/**
* Fetches the next row and returns it as an object.
*
* Fetches the next row and returns it as an object. This function is an alternative to
* Doctrine_Adapter_Statement_Interface->fetch() with Doctrine_Core::FETCH_CLASS or Doctrine_Core::FETCH_OBJ style.
*
* @param string $className Name of the created class, defaults to stdClass.
* @param array $args Elements of this array are passed to the constructor.
*
* @return mixed an instance of the required class with property names that correspond
* to the column names or FALSE in case of an error.
*/
public function fetchObject($className = 'stdClass', $args = array())
{
$row = $this->fetch(Doctrine_Core::FETCH_ASSOC);
if ($row === false) {
return false;
}
$instantiation_code = "\$object = new $className(";
$firstParam=true;
foreach ($args as $index=>$value) {
if ( ! $firstParam ) {
$instantiation_code = $instantiation_code . ",";
} else {
$firstParam= false;
}
if ( is_string($index)) {
$instantiation_code = $instantiation_code . " \$args['$index']";
} else {
$instantiation_code = $instantiation_code . "\$args[$index]";
}
}
$instantiation_code = $instantiation_code . ");";
eval($instantiation_code);
//initialize instance of $className class
foreach ($row as $col => $value) {
$object->$col = $value;
}
return $object;
}
/**
* Returns metadata for a column in a result set
*
* @param integer $column The 0-indexed column in the result set.
*
* @return array Associative meta data array with the following structure:
*
* native_type The PHP native type used to represent the column value.
* driver:decl_ type The SQL type used to represent the column value in the database. If the column in the result set is the result of a function, this value is not returned by PDOStatement->getColumnMeta().
* flags Any flags set for this column.
* name The name of this column as returned by the database.
* len The length of this column. Normally -1 for types other than floating point decimals.
* precision The numeric precision of this column. Normally 0 for types other than floating point decimals.
* pdo_type The type of this column as represented by the PDO::PARAM_* constants.
*/
public function getColumnMeta($column)
{
if (is_integer($column)) {
$internal_column = $column +1;
} else {
$internal_column = $column;
}
$data = array();
$data['native_type'] = oci_field_type($this->statement, $internal_column);
$data['flags'] = "";
$data['len'] = oci_field_size($this->statement, $internal_column);
$data['name'] = oci_field_name($this->statement, $internal_column);
$data['precision'] = oci_field_precision($this->statement, $internal_column);
return $data;
}
/**
* Advances to the next rowset in a multi-rowset statement handle
*
* Some database servers support stored procedures that return more than one rowset
* (also known as a result set). The nextRowset() method enables you to access the second
* and subsequent rowsets associated with a PDOStatement object. Each rowset can have a
* different set of columns from the preceding rowset.
*
* @return boolean Returns TRUE on success or FALSE on failure.
*/
public function nextRowset()
{
throw new Doctrine_Adapter_Exception("Unsupported");
}
/**
* rowCount() returns the number of rows affected by the last DELETE, INSERT, or UPDATE statement
* executed by the corresponding object.
*
* If the last SQL statement executed by the associated Statement object was a SELECT statement,
* some databases may return the number of rows returned by that statement. However,
* this behaviour is not guaranteed for all databases and should not be
* relied on for portable applications.
*
* @return integer Returns the number of rows.
*/
public function rowCount()
{
return @oci_num_rows($this->statement);
}
/**
* Set a statement attribute
*
* @param integer $attribute
* @param mixed $value the value of given attribute
* @return boolean Returns TRUE on success or FALSE on failure.
*/
public function setAttribute($attribute, $value)
{
switch ($attribute) {
case Doctrine_Core::ATTR_ERRMODE;
break;
default:
throw new Doctrine_Adapter_Exception("Unsupported Attribute: $attribute");
}
$this->attributes[$attribute] = $value;
}
/**
* Retrieve a statement attribute
*
* @param integer $attribute
* @see Doctrine_Core::ATTR_* constants
* @return mixed the attribute value
*/
public function getAttribute($attribute)
{
return $this->attributes[$attribute];
}
/**
* Set the default fetch mode for this statement
*
* @param integer $mode The fetch mode must be one of the Doctrine_Core::FETCH_* constants.
* @return boolean Returns 1 on success or FALSE on failure.
*/
public function setFetchMode($mode, $arg1 = null, $arg2 = null)
{
throw new Doctrine_Adapter_Exception("Unsupported");
}
private function handleError($params=array())
{
switch ($this->attributes[Doctrine_Core::ATTR_ERRMODE]) {
case Doctrine_Core::ERRMODE_EXCEPTION:
if (isset($params['message'])) {
throw new Doctrine_Adapter_Exception($params['message']);
} else {
throw new Doctrine_Adapter_Exception($this->errorInfo());
}
break;
case Doctrine_Core::ERRMODE_WARNING:
case Doctrine_Core::ERRMODE_SILENT:
break;
}
}
/**
* Parse actual query from queryString and returns OCI statement handler
* @param string Query string to parse, if NULL, $this->queryString is used
*
* @return resource OCI statement handler
*/
private function parseQuery($query=null)
{
if (is_null($query)) {
$query = $this->queryString;
}
$bind_index = 1;
// Replace ? bind-placeholders with :oci_b_var_ variables
$query = preg_replace("/(\?)/e", '":oci_b_var_". $bind_index++' , $query);
$this->statement = @oci_parse($this->connection, $query);
if ( $this->statement == false )
{
throw new Doctrine_Adapter_Exception($this->getOciError());
}
return $this->statement;
}
}
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