diff options
Diffstat (limited to 'system/database/drivers/oci8/oci8_driver.php')
| -rw-r--r-- | system/database/drivers/oci8/oci8_driver.php | 91 |
1 files changed, 38 insertions, 53 deletions
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php index f2e40da9b..fb2f6b31b 100644 --- a/system/database/drivers/oci8/oci8_driver.php +++ b/system/database/drivers/oci8/oci8_driver.php @@ -6,7 +6,7 @@ * * This content is released under the MIT License (MIT) * - * Copyright (c) 2014 - 2015, British Columbia Institute of Technology + * Copyright (c) 2014 - 2017, British Columbia Institute of Technology * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal @@ -28,10 +28,10 @@ * * @package CodeIgniter * @author EllisLab Dev Team - * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/) - * @copyright Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/) + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2017, British Columbia Institute of Technology (http://bcit.ca/) * @license http://opensource.org/licenses/MIT MIT License - * @link http://codeigniter.com + * @link https://codeigniter.com * @since Version 1.4.1 * @filesource */ @@ -48,7 +48,7 @@ defined('BASEPATH') OR exit('No direct script access allowed'); * @subpackage Drivers * @category Database * @author EllisLab Dev Team - * @link http://codeigniter.com/user_guide/database/ + * @link https://codeigniter.com/user_guide/database/ */ /** @@ -252,12 +252,16 @@ class CI_DB_oci8_driver extends CI_DB { return $this->data_cache['version']; } - if ( ! $this->conn_id OR ($version = oci_server_version($this->conn_id)) === FALSE) + if ( ! $this->conn_id OR ($version_string = oci_server_version($this->conn_id)) === FALSE) { return FALSE; } + elseif (preg_match('#Release\s(\d+(?:\.\d+)+)#', $version_string, $match)) + { + return $this->data_cache['version'] = $match[1]; + } - return $this->data_cache['version'] = $version; + return FALSE; } // -------------------------------------------------------------------- @@ -378,28 +382,11 @@ class CI_DB_oci8_driver extends CI_DB { /** * Begin Transaction * - * @param bool $test_mode * @return bool */ - public function trans_begin($test_mode = FALSE) + protected function _trans_begin() { - if ( ! $this->trans_enabled) - { - return TRUE; - } - - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) - { - return TRUE; - } - - // Reset the transaction failure flag. - // If the $test_mode flag is set to TRUE transactions will be rolled back - // even if the queries produce a successful result. - $this->_trans_failure = ($test_mode === TRUE); - - $this->commit_mode = is_php('5.3.2') ? OCI_NO_AUTO_COMMIT : OCI_DEFAULT; + $this->commit_mode = OCI_NO_AUTO_COMMIT; return TRUE; } @@ -410,20 +397,10 @@ class CI_DB_oci8_driver extends CI_DB { * * @return bool */ - public function trans_commit() + protected function _trans_commit() { - if ( ! $this->trans_enabled) - { - return TRUE; - } - - // When transactions are nested we only begin/commit/rollback the outermost ones - if ($this->_trans_depth > 0) - { - return TRUE; - } - $this->commit_mode = OCI_COMMIT_ON_SUCCESS; + return oci_commit($this->conn_id); } @@ -434,14 +411,8 @@ class CI_DB_oci8_driver extends CI_DB { * * @return bool */ - public function trans_rollback() + protected function _trans_rollback() { - // When transactions are nested we only begin/commit/rollback the outermost ones - if ( ! $this->trans_enabled OR $this->_trans_depth > 0) - { - return TRUE; - } - $this->commit_mode = OCI_COMMIT_ON_SUCCESS; return oci_rollback($this->conn_id); } @@ -582,29 +553,35 @@ class CI_DB_oci8_driver extends CI_DB { * Error * * Returns an array containing code and message of the last - * database error that has occured. + * database error that has occurred. * * @return array */ public function error() { - /* oci_error() returns an array that already contains the - * 'code' and 'message' keys, so we can just return it. - */ + // oci_error() returns an array that already contains + // 'code' and 'message' keys, but it can return false + // if there was no error .... if (is_resource($this->curs_id)) { - return oci_error($this->curs_id); + $error = oci_error($this->curs_id); } elseif (is_resource($this->stmt_id)) { - return oci_error($this->stmt_id); + $error = oci_error($this->stmt_id); } elseif (is_resource($this->conn_id)) { - return oci_error($this->conn_id); + $error = oci_error($this->conn_id); + } + else + { + $error = oci_error(); } - return oci_error(); + return is_array($error) + ? $error + : array('code' => '', 'message' => ''); } // -------------------------------------------------------------------- @@ -683,6 +660,14 @@ class CI_DB_oci8_driver extends CI_DB { */ protected function _limit($sql) { + if (version_compare($this->version(), '12.1', '>=')) + { + // OFFSET-FETCH can be used only with the ORDER BY clause + empty($this->qb_orderby) && $sql .= ' ORDER BY 1'; + + return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY'; + } + $this->limit_used = TRUE; return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($this->qb_offset + $this->qb_limit + 1).')' .($this->qb_offset ? ' WHERE rnum >= '.($this->qb_offset + 1) : ''); |