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authorAndrey Andreev <narf@bofh.bg>2012-04-06 20:41:58 +0200
committerAndrey Andreev <narf@bofh.bg>2012-04-06 20:41:58 +0200
commitd1587defeb0304755d9a937aa688ee82098de246 (patch)
tree54904c545b9d6054d49df8f1cbb0fb8f28727495 /system/database/DB_driver.php
parentfd9e46e852d073ae6fb8680f26e9825805104e1c (diff)
parentea09a8a5552f2aacdeab0c88a605fe44047ebd0a (diff)
Merge upstream branch
Diffstat (limited to 'system/database/DB_driver.php')
-rw-r--r--system/database/DB_driver.php47
1 files changed, 41 insertions, 6 deletions
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index 45f17e8ec..8b030af77 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -407,8 +407,6 @@ abstract class CI_DB_driver {
$driver = $this->load_rdriver();
$RES = new $driver($this);
- $RES->num_rows = $RES->num_rows();
-
// Is query caching enabled? If so, we'll serialize the
// result object and save it to a cache file.
if ($this->cache_on == TRUE && $this->_cache_init())
@@ -903,6 +901,43 @@ abstract class CI_DB_driver {
// --------------------------------------------------------------------
/**
+ * Escape the SQL Identifiers
+ *
+ * This function escapes column and table names
+ *
+ * @param string
+ * @return string
+ */
+ public function escape_identifiers($item)
+ {
+ if ($this->_escape_char == '')
+ {
+ return $item;
+ }
+
+ foreach ($this->_reserved_identifiers as $id)
+ {
+ if (strpos($item, '.'.$id) !== FALSE)
+ {
+ $item = str_replace('.', $this->_escape_char.'.', $item);
+
+ // remove duplicates if the user already included the escape
+ return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $this->_escape_char.$item);
+ }
+ }
+
+ if (strpos($item, '.') !== FALSE)
+ {
+ $item = str_replace('.', $this->_escape_char.'.'.$this->_escape_char, $item);
+ }
+
+ // remove duplicates if the user already included the escape
+ return preg_replace('/['.$this->_escape_char.']+/', $this->_escape_char, $this->_escape_char.$item.$this->_escape_char);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
* Generate an insert string
*
* @param string the table upon which the query will be performed
@@ -915,7 +950,7 @@ abstract class CI_DB_driver {
foreach ($data as $key => $val)
{
- $fields[] = $this->_escape_identifiers($key);
+ $fields[] = $this->escape_identifiers($key);
$values[] = $this->escape($val);
}
@@ -1256,7 +1291,7 @@ abstract class CI_DB_driver {
{
if ( ! in_array($val, $this->_reserved_identifiers))
{
- $parts[$key] = $this->_escape_identifiers($val);
+ $parts[$key] = $this->escape_identifiers($val);
}
}
@@ -1313,7 +1348,7 @@ abstract class CI_DB_driver {
if ($protect_identifiers === TRUE)
{
- $item = $this->_escape_identifiers($item);
+ $item = $this->escape_identifiers($item);
}
return $item.$alias;
@@ -1336,7 +1371,7 @@ abstract class CI_DB_driver {
if ($protect_identifiers === TRUE && ! in_array($item, $this->_reserved_identifiers))
{
- $item = $this->_escape_identifiers($item);
+ $item = $this->escape_identifiers($item);
}
return $item.$alias;