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Merge pull request #1069 from narfbg/develop-db-select

Add an optional database name parameter to db_select()
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2 parents e267573 + 024ba2d commit 5148029aaf204fb3e7e4f24a794bee781d0c218b @narfbg narfbg committed Feb 24, 2012
@@ -114,14 +114,25 @@ function reconnect()
/**
* Select the database
*
- * @access private called by the base class
- * @return resource
+ * @param string database name
+ * @return bool
*/
- function db_select()
+ public function db_select($database = '')
{
+ if ($database === '')
+ {
+ $database = $this->database;
+ }
+
// Note: The brackets are required in the event that the DB name
// contains reserved characters
- return @mssql_select_db('['.$this->database.']', $this->conn_id);
+ if (@mssql_select_db('['.$database.']', $this->conn_id))
+ {
+ $this->database = $database;
+ return TRUE;
+ }
+
+ return FALSE;
}
// --------------------------------------------------------------------
@@ -676,4 +687,4 @@ function _close($conn_id)
/* End of file mssql_driver.php */
-/* Location: ./system/database/drivers/mssql/mssql_driver.php */
+/* Location: ./system/database/drivers/mssql/mssql_driver.php */
@@ -119,11 +119,23 @@ public function reconnect()
/**
* Select the database
*
+ * @param string database name
* @return bool
*/
- public function db_select()
+ public function db_select($database = '')
{
- return @mysql_select_db($this->database, $this->conn_id);
+ if ($database === '')
+ {
+ $database = $this->database;
+ }
+
+ if (@mysql_select_db($database, $this->conn_id))
+ {
+ $this->database = $database;
+ return TRUE;
+ }
+
+ return FALSE;
}
// --------------------------------------------------------------------
@@ -119,11 +119,23 @@ public function reconnect()
/**
* Select the database
*
+ * @param string database name
* @return bool
*/
- public function db_select()
+ public function db_select($database = '')
{
- return @mysqli_select_db($this->conn_id, $this->database);
+ if ($database === '')
+ {
+ $database = $this->database;
+ }
+
+ if (@mysqli_select_db($this->conn_id, $database))
+ {
+ $this->database = $database;
+ return TRUE;
+ }
+
+ return FALSE;
}
// --------------------------------------------------------------------
@@ -122,12 +122,23 @@ function reconnect()
/**
* Select the database
*
- * @access private called by the base class
- * @return resource
+ * @param string database name
+ * @return bool
*/
- function db_select()
+ public function db_select($database = '')
{
- return $this->_execute('USE ' . $this->database);
+ if ($database === '')
+ {
+ $database = $this->database;
+ }
+
+ if ($this->_execute('USE '.$database))
+ {
+ $this->database = $database;
+ return TRUE;
+ }
+
+ return FALSE;
}
// --------------------------------------------------------------------
@@ -608,4 +619,4 @@ function _close($conn_id)
/* End of file mssql_driver.php */
-/* Location: ./system/database/drivers/mssql/mssql_driver.php */
+/* Location: ./system/database/drivers/mssql/mssql_driver.php */
@@ -51,6 +51,7 @@ Release Date: Not Released
- MySQLi driver now supports persistent connections when running on PHP >= 5.3.
- Added dsn if the group connections in the config use PDO or any driver which need DSN.
- Improved PDO database support.
+ - An optional database name parameter was added db_select().
- Libraries
@@ -122,6 +122,12 @@ return the database object.
| $DB1->result();
| etc...
+.. note:: You don't need to create separate database configurations if you
+ only need to use a different database on the same connection. You
+ can switch to a different database when you need to, like this:
+
+ | $this->db->db_select($database2_name);
+
Reconnecting / Keeping the Connection Alive
===========================================

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