--- /dev/null
+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the MIT license. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\DBAL\Driver\OCI8;
+
+use PDO;
+use IteratorAggregate;
+use Doctrine\DBAL\Driver\Statement;
+
+/**
+ * The OCI8 implementation of the Statement interface.
+ *
+ * @since 2.0
+ * @author Roman Borschel <roman@code-factory.org>
+ */
+class OCI8Statement implements \IteratorAggregate, Statement
+{
+ /** Statement handle. */
+ protected $_dbh;
+ protected $_sth;
+ protected $_conn;
+ protected static $_PARAM = ':param';
+ protected static $fetchModeMap = array(
+ PDO::FETCH_BOTH => OCI_BOTH,
+ PDO::FETCH_ASSOC => OCI_ASSOC,
+ PDO::FETCH_NUM => OCI_NUM,
+ PDO::PARAM_LOB => OCI_B_BLOB,
+ PDO::FETCH_COLUMN => OCI_NUM,
+ );
+ protected $_defaultFetchMode = PDO::FETCH_BOTH;
+ protected $_paramMap = array();
+
+ /**
+ * Creates a new OCI8Statement that uses the given connection handle and SQL statement.
+ *
+ * @param resource $dbh The connection handle.
+ * @param string $statement The SQL statement.
+ */
+ public function __construct($dbh, $statement, OCI8Connection $conn)
+ {
+ list($statement, $paramMap) = self::convertPositionalToNamedPlaceholders($statement);
+ $this->_sth = oci_parse($dbh, $statement);
+ $this->_dbh = $dbh;
+ $this->_paramMap = $paramMap;
+ $this->_conn = $conn;
+ }
+
+ /**
+ * Convert positional (?) into named placeholders (:param<num>)
+ *
+ * Oracle does not support positional parameters, hence this method converts all
+ * positional parameters into artificially named parameters. Note that this conversion
+ * is not perfect. All question marks (?) in the original statement are treated as
+ * placeholders and converted to a named parameter.
+ *
+ * The algorithm uses a state machine with two possible states: InLiteral and NotInLiteral.
+ * Question marks inside literal strings are therefore handled correctly by this method.
+ * This comes at a cost, the whole sql statement has to be looped over.
+ *
+ * @todo extract into utility class in Doctrine\DBAL\Util namespace
+ * @todo review and test for lost spaces. we experienced missing spaces with oci8 in some sql statements.
+ * @param string $statement The SQL statement to convert.
+ * @return string
+ */
+ static public function convertPositionalToNamedPlaceholders($statement)
+ {
+ $count = 1;
+ $inLiteral = false; // a valid query never starts with quotes
+ $stmtLen = strlen($statement);
+ $paramMap = array();
+ for ($i = 0; $i < $stmtLen; $i++) {
+ if ($statement[$i] == '?' && !$inLiteral) {
+ // real positional parameter detected
+ $paramMap[$count] = ":param$count";
+ $len = strlen($paramMap[$count]);
+ $statement = substr_replace($statement, ":param$count", $i, 1);
+ $i += $len-1; // jump ahead
+ $stmtLen = strlen($statement); // adjust statement length
+ ++$count;
+ } else if ($statement[$i] == "'" || $statement[$i] == '"') {
+ $inLiteral = ! $inLiteral; // switch state!
+ }
+ }
+
+ return array($statement, $paramMap);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function bindValue($param, $value, $type = null)
+ {
+ return $this->bindParam($param, $value, $type, null);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function bindParam($column, &$variable, $type = null,$length = null)
+ {
+ $column = isset($this->_paramMap[$column]) ? $this->_paramMap[$column] : $column;
+
+ if ($type == \PDO::PARAM_LOB) {
+ $lob = oci_new_descriptor($this->_dbh, OCI_D_LOB);
+ $lob->writeTemporary($variable, OCI_TEMP_BLOB);
+
+ return oci_bind_by_name($this->_sth, $column, $lob, -1, OCI_B_BLOB);
+ } else {
+ return oci_bind_by_name($this->_sth, $column, $variable);
+ }
+ }
+
+ /**
+ * Closes the cursor, enabling the statement to be executed again.
+ *
+ * @return boolean Returns TRUE on success or FALSE on failure.
+ */
+ public function closeCursor()
+ {
+ return oci_free_statement($this->_sth);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function columnCount()
+ {
+ return oci_num_fields($this->_sth);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function errorCode()
+ {
+ $error = oci_error($this->_sth);
+ if ($error !== false) {
+ $error = $error['code'];
+ }
+ return $error;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function errorInfo()
+ {
+ return oci_error($this->_sth);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function execute($params = null)
+ {
+ if ($params) {
+ $hasZeroIndex = array_key_exists(0, $params);
+ foreach ($params as $key => $val) {
+ if ($hasZeroIndex && is_numeric($key)) {
+ $this->bindValue($key + 1, $val);
+ } else {
+ $this->bindValue($key, $val);
+ }
+ }
+ }
+
+ $ret = @oci_execute($this->_sth, $this->_conn->getExecuteMode());
+ if ( ! $ret) {
+ throw OCI8Exception::fromErrorInfo($this->errorInfo());
+ }
+ return $ret;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setFetchMode($fetchMode, $arg2 = null, $arg3 = null)
+ {
+ $this->_defaultFetchMode = $fetchMode;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function getIterator()
+ {
+ $data = $this->fetchAll();
+ return new \ArrayIterator($data);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function fetch($fetchMode = null)
+ {
+ $fetchMode = $fetchMode ?: $this->_defaultFetchMode;
+ if ( ! isset(self::$fetchModeMap[$fetchMode])) {
+ throw new \InvalidArgumentException("Invalid fetch style: " . $fetchMode);
+ }
+
+ return oci_fetch_array($this->_sth, self::$fetchModeMap[$fetchMode] | OCI_RETURN_NULLS | OCI_RETURN_LOBS);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function fetchAll($fetchMode = null)
+ {
+ $fetchMode = $fetchMode ?: $this->_defaultFetchMode;
+ if ( ! isset(self::$fetchModeMap[$fetchMode])) {
+ throw new \InvalidArgumentException("Invalid fetch style: " . $fetchMode);
+ }
+
+ $result = array();
+ if (self::$fetchModeMap[$fetchMode] === OCI_BOTH) {
+ while ($row = $this->fetch($fetchMode)) {
+ $result[] = $row;
+ }
+ } else {
+ $fetchStructure = OCI_FETCHSTATEMENT_BY_ROW;
+ if ($fetchMode == PDO::FETCH_COLUMN) {
+ $fetchStructure = OCI_FETCHSTATEMENT_BY_COLUMN;
+ }
+
+ oci_fetch_all($this->_sth, $result, 0, -1,
+ self::$fetchModeMap[$fetchMode] | OCI_RETURN_NULLS | $fetchStructure | OCI_RETURN_LOBS);
+
+ if ($fetchMode == PDO::FETCH_COLUMN) {
+ $result = $result[0];
+ }
+ }
+
+ return $result;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function fetchColumn($columnIndex = 0)
+ {
+ $row = oci_fetch_array($this->_sth, OCI_NUM | OCI_RETURN_NULLS | OCI_RETURN_LOBS);
+ return isset($row[$columnIndex]) ? $row[$columnIndex] : false;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function rowCount()
+ {
+ return oci_num_rows($this->_sth);
+ }
+}
projects / zf2.biz / application_blanche.git / blobdiff