586 lines
24 KiB
PHP
586 lines
24 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.phpdoctrine.org>.
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*/
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/**
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* Oracle connection adapter statement class.
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*
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* @package Doctrine
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* @subpackage Adapter
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @author vadik56
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* @author Miloslav Kmet <adrive-nospam@hip-hop.sk>
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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 $Rev$
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*/
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class Doctrine_Adapter_Statement_Oracle implements Doctrine_Adapter_Statement_Interface
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{
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/**
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* @var string $queryString actual query string
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*/
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public $queryString;
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/**
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* @var resource $connection OCI connection handler
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*/
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protected $connection;
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/**
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* @var resource $statement OCI prepared statement
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*/
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protected $statement;
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/**
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* @var integer $executeMode OCI statement execution mode
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*/
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protected $executeMode = OCI_COMMIT_ON_SUCCESS;
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/**
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* @var array $bind_params Array of parameters bounded to a statement
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*/
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protected $bindParams = array();
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/**
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* @var array $attributes Array of attributes
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*/
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protected $attributes = array();
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/**
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* @var array $ociErrors Array of errors
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*/
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protected $ociErrors = array();
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/**
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* the constructor
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*
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* @param Doctrine_Adapter_Oracle $connection
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* @param string $query Query string to be executed
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* @param integer $executeMode OCI execute mode
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*/
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public function __construct( Doctrine_Adapter_Oracle $connection, $query, $executeMode)
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{
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$this->connection = $connection->getConnection();
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$this->queryString = $query;
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$this->executeMode = $executeMode;
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$this->attributes[Doctrine::ATTR_ERRMODE] = $connection->getAttribute(Doctrine::ATTR_ERRMODE);
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$this->parseQuery();
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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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* @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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throw new Exception("Unsupported");
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}
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/**
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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, $type = null){
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/**
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* need to store the value internally since binding is done by reference
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*/
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$this->bindParams[] = $value;
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$this->bindParam($param, $this->bindParams[count($this->bindParams) - 1], $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 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, $driverOptions = array()){
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if ($driverOptions || $length ) {
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throw new Doctrine_Adapter_Exception('Unsupported parameters:$length, $driverOptions');
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}
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if ($length === null) {
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$oci_length = -1;
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}
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$oci_type = SQLT_CHR;
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switch ($type) {
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case Doctrine::PARAM_STR:
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$oci_type = SQLT_CHR;
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break;
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}
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if (is_integer($column)) {
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$variable_name = ":oci_b_var_$column";
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} else {
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$variable_name = $column;
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}
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//print "Binding $variable to $variable_name".PHP_EOL;
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$status = @oci_bind_by_name($this->statement, $variable_name, $variable, $oci_length, $oci_type);
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if($status === false){
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$this->handleError();
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}
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return $status;
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}
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/**
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* Closes the cursor, enabling the statement to be executed again.
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*
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* @return boolean Returns TRUE on success or FALSE on failure.
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*/
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public function closeCursor(){
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$this->bind_params = array();
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return oci_free_statement($this->statement);
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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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return oci_num_fields ( $this->statement );
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}
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/**
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* Fetch the SQLSTATE associated with the last operation on the statement handle
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*
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* @see Doctrine_Adapter_Interface::errorCode()
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* @return string error code string
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*/
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public function errorCode(){
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$oci_error = $this->getOciError();
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return $oci_error['code'];
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}
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/**
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* Fetch extended error information associated with the last operation on the statement handle
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*
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* @see Doctrine_Adapter_Interface::errorInfo()
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* @return array error info array
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*/
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public function errorInfo(){
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$oci_error = $this->getOciError();
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return $oci_error['message'] . " : " . $oci_error['sqltext'];
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}
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private function getOciError()
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{
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if (is_resource($this->statement)) {
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$oci_error = oci_error ($this->statement);
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} else {
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$oci_error = oci_error ();
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}
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if ($oci_error) {
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//store the error
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$this->oci_errors[] = $oci_error;
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} else if (count($this->ociErrors) > 0) {
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$oci_error = $this->ociErrors[count($this->ociErrors)-1];
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}
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return $oci_error;
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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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if (is_array($params)) {
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foreach ($params as $var => $value) {
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$this->bindValue($var, $value);
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}
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}
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$result = @oci_execute($this->statement , $this->executeMode );
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if ($result === false) {
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$this->handleError();
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return false;
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}
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return true;
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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 $cursorOrientation parameter is set to Doctrine::FETCH_ORI_REL, this value
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* specifies the row to fetch relative to the cursor position before
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* Doctrine_Adapter_Statement_Interface->fetch() was called.
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*
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* @return mixed
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*/
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public function fetch($fetchStyle = Doctrine::FETCH_BOTH, $cursorOrientation = Doctrine::FETCH_ORI_NEXT, $cursorOffset = null)
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{
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switch ($fetchStyle) {
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case Doctrine::FETCH_BOTH :
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return oci_fetch_array($this->statement, OCI_BOTH + OCI_RETURN_NULLS + OCI_RETURN_LOBS);
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break;
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case Doctrine::FETCH_ASSOC :
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return oci_fetch_array($this->statement, OCI_ASSOC + OCI_RETURN_NULLS + OCI_RETURN_LOBS);
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break;
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case Doctrine::FETCH_NUM :
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return oci_fetch_array($this->statement, OCI_NUM + OCI_RETURN_NULLS + OCI_RETURN_LOBS);
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break;
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case FETCH_OBJ:
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return oci_fetch_object($this->statement, OCI_NUM + OCI_RETURN_NULLS + OCI_RETURN_LOBS);
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break;
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default:
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throw new Doctrine_Adapter_Exception("This type of fetch is not supported: ".$fetchStyle);
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/*
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case Doctrine::FETCH_BOUND:
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case Doctrine::FETCH_CLASS:
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case FETCH_CLASSTYPE:
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case FETCH_COLUMN:
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case FETCH_FUNC:
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case FETCH_GROUP:
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case FETCH_INTO:
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case FETCH_LAZY:
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case FETCH_NAMED:
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case FETCH_SERIALIZE:
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case FETCH_UNIQUE:
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case FETCH_ORI_ABS:
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case FETCH_ORI_FIRST:
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case FETCH_ORI_LAST:
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case FETCH_ORI_NEXT:
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case FETCH_ORI_PRIOR:
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case FETCH_ORI_REL:
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*/
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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 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 $fetchStyle is
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* Doctrine::FETCH_COLUMN. Defaults to 0.
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*
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* @return array
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*/
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public function fetchAll($fetchStyle = Doctrine::FETCH_BOTH, $colnum=0)
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{
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$fetchColumn = false;
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$skip = 0;
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$maxrows = -1;
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$data = array();
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$flags = OCI_FETCHSTATEMENT_BY_ROW + OCI_ASSOC;
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$int = $fetchStyle & Doctrine::FETCH_COLUMN;
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if ($fetchStyle == Doctrine::FETCH_BOTH) {
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$flags = OCI_BOTH;
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} else if ($fetchStyle == Doctrine::FETCH_ASSOC) {
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$numberOfRows = @oci_fetch_all($this->statement, $data, $skip, $maxrows, OCI_FETCHSTATEMENT_BY_ROW + OCI_ASSOC + OCI_RETURN_LOBS);
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} else if ($fetchStyle == Doctrine::FETCH_NUM) {
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$numberOfRows = @oci_fetch_all($this->statement, $data, $skip, $maxrows, OCI_FETCHSTATEMENT_BY_ROW + OCI_NUM + OCI_RETURN_LOBS);
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} else if ($fetchStyle == Doctrine::FETCH_COLUMN) {
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while ($row = @oci_fetch_array ($this->statement, OCI_NUM+OCI_RETURN_LOBS)) {
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$data[] = $row[$colnum];
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}
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} else {
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throw new Exception("Unsupported mode: '" . $fetchStyle . "' ");
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}
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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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if( ! is_integer($columnIndex)) {
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$this->handleError(array('message'=>"columnIndex parameter should be numeric"));
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}
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$row = $this->fetch(Doctrine::FETCH_NUM);
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return $row[$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', $args = array())
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{
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$row = $this->fetch(Doctrine::FETCH_ASSOC);
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if ($row === false) {
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return false;
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}
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$instantiation_code = "\$object = new $className(";
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$firstParam=true;
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foreach ($args as $index=>$value) {
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if ( ! $firstParam ) {
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$instantiation_code = $instantiation_code . ",";
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} else {
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$firstParam= false;
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}
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if ( is_string($index)) {
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$instantiation_code = $instantiation_code . " \$args['$index']";
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} else {
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$instantiation_code = $instantiation_code . "\$args[$index]";
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}
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}
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$instantiation_code = $instantiation_code . ");";
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eval($instantiation_code);
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//initialize instance of $className class
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foreach ($row as $col => $value) {
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$object->$col = $value;
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}
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return $object;
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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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if (is_integer($column)) {
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$internal_column = $column +1;
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} else {
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$internal_column = $column;
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}
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$data = array();
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$data['native_type'] = oci_field_type($this->statement, $internal_column);
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$data['flags'] = "";
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$data['len'] = oci_field_size($this->statement, $internal_column);
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$data['name'] = oci_field_name($this->statement, $internal_column);
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$data['precision'] = oci_field_precision($this->statement, $internal_column);
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return $data;
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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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throw new Exception("Unsupported");
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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.
|
|
*
|
|
* @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::ATTR_ERRMODE;
|
|
break;
|
|
default:
|
|
throw new Doctrine_Adapter_Exception("Unsupported Attribute: $attribute");
|
|
}
|
|
$this->attributes[$attribute] = $value;
|
|
}
|
|
|
|
/**
|
|
* Retrieve a statement attribute
|
|
*
|
|
* @param integer $attribute
|
|
* @see Doctrine::ATTR_* constants
|
|
* @return mixed the attribute value
|
|
*/
|
|
public function getAttribute($attribute)
|
|
{
|
|
return $this->attributes[$attribute];
|
|
}
|
|
/**
|
|
* Set the default fetch mode for this statement
|
|
*
|
|
* @param integer $mode The fetch mode must be one of the Doctrine::FETCH_* constants.
|
|
* @return boolean Returns 1 on success or FALSE on failure.
|
|
*/
|
|
public function setFetchMode($mode, $arg1 = null, $arg2 = null)
|
|
{
|
|
throw new Exception("Unsupported");
|
|
}
|
|
|
|
private function handleError($params=array())
|
|
{
|
|
|
|
switch ($this->attributes[Doctrine::ATTR_ERRMODE]) {
|
|
case Doctrine::ERRMODE_EXCEPTION:
|
|
if (isset($params['message'])) {
|
|
throw new Doctrine_Adapter_Exception($params['message']);
|
|
} else {
|
|
throw new Doctrine_Adapter_Exception($this->errorInfo());
|
|
}
|
|
|
|
break;
|
|
case Doctrine::ERRMODE_WARNING:
|
|
case Doctrine::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 = 0;
|
|
// 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;
|
|
}
|
|
} |