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@@ -6,7 +6,7 @@
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2014 - 2016, British Columbia Institute of Technology
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* Copyright (c) 2014 - 2018, British Columbia Institute of Technology
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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@@ -29,7 +29,7 @@
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* @package CodeIgniter
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* @author EllisLab Dev Team
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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* @copyright Copyright (c) 2014 - 2016, British Columbia Institute of Technology (http://bcit.ca/)
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* @copyright Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/)
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* @license http://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 1.3.0
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@@ -50,7 +50,7 @@ defined('BASEPATH') OR exit('No direct script access allowed');
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* @author EllisLab Dev Team
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* @link https://codeigniter.com/user_guide/database/
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*/
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class CI_DB_odbc_driver extends CI_DB {
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class CI_DB_odbc_driver extends CI_DB_driver {
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/**
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* Database driver
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@@ -93,6 +93,22 @@ class CI_DB_odbc_driver extends CI_DB {
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// --------------------------------------------------------------------
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/**
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* ODBC result ID resource returned from odbc_prepare()
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*
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* @var resource
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*/
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private $odbc_result;
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/**
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* Values to use with odbc_execute() for prepared statements
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*
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* @var array
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*/
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private $binds = array();
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// --------------------------------------------------------------------
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/**
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* Class constructor
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*
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@@ -127,6 +143,74 @@ class CI_DB_odbc_driver extends CI_DB {
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// --------------------------------------------------------------------
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/**
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* Compile Bindings
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*
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* @param string $sql SQL statement
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* @param array $binds An array of values to bind
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* @return string
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*/
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public function compile_binds($sql, $binds)
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{
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if (empty($binds) OR empty($this->bind_marker) OR strpos($sql, $this->bind_marker) === FALSE)
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{
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return $sql;
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}
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elseif ( ! is_array($binds))
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{
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$binds = array($binds);
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$bind_count = 1;
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}
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else
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{
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// Make sure we're using numeric keys
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$binds = array_values($binds);
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$bind_count = count($binds);
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}
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// We'll need the marker length later
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$ml = strlen($this->bind_marker);
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// Make sure not to replace a chunk inside a string that happens to match the bind marker
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if ($c = preg_match_all("/'[^']*'|\"[^\"]*\"/i", $sql, $matches))
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{
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$c = preg_match_all('/'.preg_quote($this->bind_marker, '/').'/i',
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str_replace($matches[0],
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str_replace($this->bind_marker, str_repeat(' ', $ml), $matches[0]),
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$sql, $c),
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$matches, PREG_OFFSET_CAPTURE);
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// Bind values' count must match the count of markers in the query
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if ($bind_count !== $c)
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{
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return $sql;
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}
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}
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elseif (($c = preg_match_all('/'.preg_quote($this->bind_marker, '/').'/i', $sql, $matches, PREG_OFFSET_CAPTURE)) !== $bind_count)
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{
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return $sql;
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}
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if ($this->bind_marker !== '?')
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{
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do
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{
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$c--;
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$sql = substr_replace($sql, '?', $matches[0][$c][1], $ml);
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}
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while ($c !== 0);
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}
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if (FALSE !== ($this->odbc_result = odbc_prepare($this->conn_id, $sql)))
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{
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$this->binds = array_values($binds);
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}
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return $sql;
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}
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// --------------------------------------------------------------------
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/**
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* Execute the query
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*
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@@ -135,7 +219,25 @@ class CI_DB_odbc_driver extends CI_DB {
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*/
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protected function _execute($sql)
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{
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return odbc_exec($this->conn_id, $sql);
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if ( ! isset($this->odbc_result))
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{
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return odbc_exec($this->conn_id, $sql);
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}
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elseif ($this->odbc_result === FALSE)
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{
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return FALSE;
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}
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if (TRUE === ($success = odbc_execute($this->odbc_result, $this->binds)))
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{
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// For queries that return result sets, return the result_id resource on success
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$this->is_write_type($sql) OR $success = $this->odbc_result;
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}
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$this->odbc_result = NULL;
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$this->binds = array();
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return $success;
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}
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// --------------------------------------------------------------------
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@@ -196,7 +298,7 @@ class CI_DB_odbc_driver extends CI_DB {
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*/
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public function is_write_type($sql)
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{
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if (preg_match('#^(INSERT|UPDATE).*RETURNING\s.+(\,\s?.+)*$#i', $sql))
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if (preg_match('#^(INSERT|UPDATE).*RETURNING\s.+(\,\s?.+)*$#is', $sql))
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{
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return FALSE;
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}
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@@ -207,14 +309,14 @@ class CI_DB_odbc_driver extends CI_DB {
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// --------------------------------------------------------------------
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/**
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* Platform-dependant string escape
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* Platform-dependent string escape
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*
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* @param string
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* @return string
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*/
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protected function _escape_str($str)
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{
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return remove_invisible_characters($str);
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$this->display_error('db_unsupported_feature');
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}
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// --------------------------------------------------------------------
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@@ -238,7 +340,7 @@ class CI_DB_odbc_driver extends CI_DB {
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*/
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public function insert_id()
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{
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return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE;
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return ($this->db_debug) ? $this->display_error('db_unsupported_feature') : FALSE;
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}
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// --------------------------------------------------------------------
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@@ -300,7 +402,7 @@ class CI_DB_odbc_driver extends CI_DB {
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* Error
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*
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* Returns an array containing code and message of the last
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* database error that has occured.
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* database error that has occurred.
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*
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* @return array
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*/
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@@ -311,58 +413,6 @@ class CI_DB_odbc_driver extends CI_DB {
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// --------------------------------------------------------------------
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/**
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* Update statement
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*
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* Generates a platform-specific update string from the supplied data
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*
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* @param string $table
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* @param array $values
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* @return string
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*/
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protected function _update($table, $values)
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{
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$this->qb_limit = FALSE;
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$this->qb_orderby = array();
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return parent::_update($table, $values);
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}
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// --------------------------------------------------------------------
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/**
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* Truncate statement
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*
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* Generates a platform-specific truncate string from the supplied data
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*
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* If the database does not support the TRUNCATE statement,
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* then this method maps to 'DELETE FROM table'
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*
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* @param string $table
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* @return string
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*/
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protected function _truncate($table)
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{
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return 'DELETE FROM '.$table;
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}
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// --------------------------------------------------------------------
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/**
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* Delete statement
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*
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* Generates a platform-specific delete string from the supplied data
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*
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* @param string $table
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* @return string
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*/
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protected function _delete($table)
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{
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$this->qb_limit = FALSE;
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return parent::_delete($table);
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}
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// --------------------------------------------------------------------
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/**
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* Close DB Connection
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*
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@@ -372,5 +422,4 @@ class CI_DB_odbc_driver extends CI_DB {
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{
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odbc_close($this->conn_id);
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}
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}
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Marcel