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-rw-r--r--system/database/DB_driver.php79
1 files changed, 54 insertions, 25 deletions
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index d63a1d955..7f1434fc1 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -51,6 +51,7 @@ abstract class CI_DB_driver {
public $char_set = 'utf8';
public $dbcollat = 'utf8_general_ci';
public $autoinit = TRUE; // Whether to automatically initialize the DB
+ public $encrypt = FALSE;
public $swap_pre = '';
public $port = '';
public $pconnect = FALSE;
@@ -78,6 +79,10 @@ abstract class CI_DB_driver {
protected $_protect_identifiers = TRUE;
protected $_reserved_identifiers = array('*'); // Identifiers that should NOT be escaped
+ // clause and character used for LIKE escape sequences
+ protected $_like_escape_str = " ESCAPE '%s' ";
+ protected $_like_escape_chr = '!';
+
/**
* The syntax to count rows is slightly different across different
* database engines, so this string appears in each driver and is
@@ -305,8 +310,9 @@ abstract class CI_DB_driver {
* FALSE upon failure, and if the $db_debug variable is set to TRUE
* will raise an error.
*
- * @param string An SQL query string
- * @param array An array of binding data
+ * @param string $sql
+ * @param array $binds = FALSE An array of binding data
+ * @param bool $return_object = NULL
* @return mixed
*/
public function query($sql, $binds = FALSE, $return_object = NULL)
@@ -509,6 +515,7 @@ abstract class CI_DB_driver {
* If strict mode is disabled, each group is treated autonomously, meaning
* a failure of one group will not affect any others
*
+ * @param bool $mode = TRUE
* @return void
*/
public function trans_strict($mode = TRUE)
@@ -521,6 +528,7 @@ abstract class CI_DB_driver {
/**
* Start Transaction
*
+ * @param bool $test_mode = FALSE
* @return void
*/
public function trans_start($test_mode = FALSE)
@@ -669,7 +677,7 @@ abstract class CI_DB_driver {
*/
public function is_write_type($sql)
{
- return (bool) preg_match('/^\s*"?(SET|INSERT|UPDATE|DELETE|REPLACE|CREATE|DROP|TRUNCATE|LOAD DATA|COPY|ALTER|RENAME|GRANT|REVOKE|LOCK|UNLOCK|REINDEX)\s+/i', $sql);
+ return (bool) preg_match('/^\s*"?(SET|INSERT|UPDATE|DELETE|REPLACE|CREATE|DROP|TRUNCATE|LOAD|COPY|ALTER|RENAME|GRANT|REVOKE|LOCK|UNLOCK|REINDEX)\s+/i', $sql);
}
// --------------------------------------------------------------------
@@ -805,6 +813,7 @@ abstract class CI_DB_driver {
/**
* Returns an array of table names
*
+ * @param string $constrain_by_prefix = FALSE
* @return array
*/
public function list_tables($constrain_by_prefix = FALSE)
@@ -859,6 +868,7 @@ abstract class CI_DB_driver {
/**
* Determine if a particular table exists
*
+ * @param string $table_name
* @return bool
*/
public function table_exists($table_name)
@@ -1119,30 +1129,19 @@ abstract class CI_DB_driver {
*
* @param string the table name
* @param array the update data
- * @param array the where clause
- * @param array the orderby clause
- * @param array the limit clause
- * @param array the like clause
* @return string
*/
- protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+ protected function _update($table, $values)
{
foreach ($values as $key => $val)
{
$valstr[] = $key.' = '.$val;
}
- $where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
-
- if ( ! empty($like))
- {
- $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
- }
-
return 'UPDATE '.$table.' SET '.implode(', ', $valstr)
- .$where
- .(count($orderby) > 0 ? ' ORDER BY '.implode(', ', $orderby) : '')
- .($limit ? ' LIMIT '.$limit : '');
+ .$this->_compile_wh('qb_where')
+ .$this->_compile_order_by()
+ .($this->qb_limit ? ' LIMIT '.$this->qb_limit : '');
}
// --------------------------------------------------------------------
@@ -1155,7 +1154,7 @@ abstract class CI_DB_driver {
*/
protected function _has_operator($str)
{
- return (bool) preg_match('/(\s|<|>|!|=|IS NULL|IS NOT NULL|BETWEEN)/i', trim($str));
+ return (bool) preg_match('/(<|>|!|=|\sIS NULL|\sIS NOT NULL|\sBETWEEN|\sLIKE|\sIN\s*\(|\s)/i', trim($str));
}
// --------------------------------------------------------------------
@@ -1168,8 +1167,30 @@ abstract class CI_DB_driver {
*/
protected function _get_operator($str)
{
- return preg_match('/(=|!|<|>| IS NULL| IS NOT NULL| BETWEEN)/i', $str, $match)
- ? $match[1] : FALSE;
+ static $_operators;
+
+ if (empty($_operators))
+ {
+ $_les = ($this->_like_escape_str !== '')
+ ? '\s+'.preg_quote(trim(sprintf($this->_like_escape_str, $this->_like_escape_chr)))
+ : '';
+ $_operators = array(
+ '\s*(?:<|>|!)?=\s*', // =, <=, >=, !=
+ '\s*<>?\s*', // <, <>
+ '\s*>\s*', // >
+ '\s+IS NULL', // IS NULL
+ '\s+IS NOT NULL', // IS NOT NULL
+ '\s+BETWEEN\s+\S+\s+AND\s+\S+', // BETWEEN value AND value
+ '\s+IN\s*\([^\)]+\)', // IN(list)
+ '\s+NOT IN\s*\([^\)]+\)', // NOT IN (list)
+ '\s+LIKE\s+\S+'.$_les, // LIKE 'expr'[ ESCAPE '%s']
+ '\s+NOT LIKE\s+\S+'.$_les // NOT LIKE 'expr'[ ESCAPE '%s']
+ );
+
+ }
+
+ return preg_match('/'.implode('|', $_operators).'/i', $str, $match)
+ ? $match[0] : FALSE;
}
// --------------------------------------------------------------------
@@ -1177,8 +1198,8 @@ abstract class CI_DB_driver {
/**
* Enables a native PHP function to be run, using a platform agnostic wrapper.
*
- * @param string the function name
- * @param mixed any parameters needed by the function
+ * @param string $function the function name
+ * @param mixed $param,... optional parameters needed by the function
* @return mixed
*/
public function call_function($function)
@@ -1242,6 +1263,8 @@ abstract class CI_DB_driver {
/**
* Delete the cache files associated with a particular URI
*
+ * @param string $segment_one = ''
+ * @param string $segment_two = ''
* @return bool
*/
public function cache_delete($segment_one = '', $segment_two = '')
@@ -1343,7 +1366,7 @@ abstract class CI_DB_driver {
}
else
{
- $message = ( ! is_array($error)) ? array(str_replace('%s', $swap, $LANG->line($error))) : $error;
+ $message = is_array($error) ? $error : array(str_replace('%s', $swap, $LANG->line($error)));
}
// Find the most likely culprit of the error by going through
@@ -1352,7 +1375,13 @@ abstract class CI_DB_driver {
$trace = debug_backtrace();
foreach ($trace as $call)
{
- if (isset($call['file']) && strpos($call['file'], BASEPATH.'database') === FALSE)
+ // We'll need this on Windows, as APPPATH and BASEPATH will always use forward slashes
+ if (DIRECTORY_SEPARATOR !== '/')
+ {
+ $call['file'] = str_replace('\\', '/', $call['file']);
+ }
+
+ if (isset($call['file'], $call['class']) && strpos($call['file'], BASEPATH.'database') === FALSE && strpos($call['class'], 'Loader') !== FALSE)
{
// Found it - use a relative path for safety
$message[] = 'Filename: '.str_replace(array(APPPATH, BASEPATH), '', $call['file']);
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-07-21 12:06:03 +0200