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authorAndrey Andreev <narf@bofh.bg>2012-04-09 15:14:20 +0200
committerAndrey Andreev <narf@bofh.bg>2012-04-09 15:14:20 +0200
commitb8949fab60082e17f219fc89c6c8a85d3ff73f19 (patch)
tree276943a51e282d0d684304048ada830b55f9fb2e /system/database/DB_forge.php
parent00aed0d9015040764fb7fe8edb7452459fc19213 (diff)
parentb457a4001ce2380e97f36b0a983b477c3e31de69 (diff)
Merge upstream branch
Diffstat (limited to 'system/database/DB_forge.php')
-rw-r--r--system/database/DB_forge.php61
1 files changed, 51 insertions, 10 deletions
diff --git a/system/database/DB_forge.php b/system/database/DB_forge.php
index 34c502a99..a519575f0 100644
--- a/system/database/DB_forge.php
+++ b/system/database/DB_forge.php
@@ -25,10 +25,8 @@
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
- * Database Utility Class
+ * Database Forge Class
*
* @category Database
* @author EllisLab Dev Team
@@ -41,6 +39,12 @@ abstract class CI_DB_forge {
public $primary_keys = array();
public $db_char_set = '';
+ // Platform specific SQL strings
+ protected $_create_database = 'CREATE DATABASE %s';
+ protected $_drop_database = 'DROP DATABASE %s';
+ protected $_drop_table = 'DROP TABLE IF EXISTS %s';
+ protected $_rename_table = 'ALTER TABLE %s RENAME TO %s';
+
public function __construct()
{
// Assign the main database object to $this->db
@@ -59,8 +63,16 @@ abstract class CI_DB_forge {
*/
public function create_database($db_name)
{
- $sql = $this->_create_database($db_name);
- return is_bool($sql) ? $sql : $this->db->query($sql);
+ if ($this->_create_database === FALSE)
+ {
+ return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE;
+ }
+ elseif ( ! $this->db->query(sprintf($this->_create_database, $db_name, $this->db->char_set, $this->db->dbcollat)))
+ {
+ return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE;
+ }
+
+ return TRUE;
}
// --------------------------------------------------------------------
@@ -73,8 +85,21 @@ abstract class CI_DB_forge {
*/
public function drop_database($db_name)
{
- $sql = $this->_drop_database($db_name);
- return is_bool($sql) ? $sql : $this->db->query($sql);
+ if ($db_name == '')
+ {
+ show_error('A table name is required for that operation.');
+ return FALSE;
+ }
+ elseif ($this->_drop_database === FALSE)
+ {
+ return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE;
+ }
+ elseif ( ! $this->db->query(sprintf($this->_drop_database, $db_name)))
+ {
+ return ($this->db->db_debug) ? $this->db->display_error('db_unable_to_drop') : FALSE;
+ }
+
+ return TRUE;
}
// --------------------------------------------------------------------
@@ -197,8 +222,16 @@ abstract class CI_DB_forge {
*/
public function drop_table($table_name)
{
- $sql = $this->_drop_table($this->db->dbprefix.$table_name);
- return is_bool($sql) ? $sql : $this->db->query($sql);
+ if ($table_name == '')
+ {
+ return ($this->db->db_debug) ? $this->db->display_error('db_table_name_required') : FALSE;
+ }
+ elseif ($this->_drop_table === FALSE)
+ {
+ return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE;
+ }
+
+ return $this->db->query(sprintf($this->_drop_table, $this->db->escape_identifiers($this->db->dbprefix.$table_name)));
}
// --------------------------------------------------------------------
@@ -215,9 +248,17 @@ abstract class CI_DB_forge {
if ($table_name == '' OR $new_table_name == '')
{
show_error('A table name is required for that operation.');
+ return FALSE;
+ }
+ elseif ($this->_rename_table === FALSE)
+ {
+ return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE;
}
- return $this->db->query($this->_rename_table($this->db->dbprefix.$table_name, $this->db->dbprefix.$new_table_name));
+ return $this->db->query(sprintf($this->_rename_table,
+ $this->db->escape_identifiers($this->db->dbprefix.$table_name),
+ $this->db->escape_identifiers($this->db->dbprefix.$new_table_name))
+ );
}
// --------------------------------------------------------------------