From 219565d05f6b223c28e24422b9d244b201890699 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Tue, 12 Mar 2013 20:00:08 +0200
Subject: Add a (default) CI_DB_query_builder::_update_batch() method

An improved version of PR #2324, which only targets ODBC.
---
 .../drivers/pdo/subdrivers/pdo_mysql_driver.php    | 41 ----------------------
 1 file changed, 41 deletions(-)

(limited to 'system/database/drivers/pdo/subdrivers')

diff --git a/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php b/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php
index 315f6f53b..ff486fc5a 100644
--- a/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php
+++ b/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php
@@ -200,47 +200,6 @@ class CI_DB_pdo_mysql_driver extends CI_DB_pdo_driver {
 
 	// --------------------------------------------------------------------
 
-	/**
-	 * Update_Batch statement
-	 *
-	 * Generates a platform-specific batch update string from the supplied data
-	 *
-	 * @param	string	$table	Table name
-	 * @param	array	$values	Update data
-	 * @param	string	$index	UPDATE key
-	 * @return	string
-	 */
-	protected function _update_batch($table, $values, $index)
-	{
-		$ids = array();
-		foreach ($values as $key => $val)
-		{
-			$ids[] = $val[$index];
-
-			foreach (array_keys($val) as $field)
-			{
-				if ($field !== $index)
-				{
-					$final[$field][] = 'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
-				}
-			}
-		}
-
-		$cases = '';
-		foreach ($final as $k => $v)
-		{
-			$cases .= $k." = CASE \n"
-				.implode("\n", $v)."\n"
-				.'ELSE '.$k.' END), ';
-		}
-
-		$this->where($index.' IN('.implode(',', $ids).')', NULL, FALSE);
-
-		return 'UPDATE '.$table.' SET '.substr($cases, 0, -2).$this->_compile_wh('qb_where');
-	}
-
-	// --------------------------------------------------------------------
-
 	/**
 	 * Truncate statement
 	 *
-- 
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