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-rw-r--r--system/database/drivers/sqlsrv/sqlsrv_driver.php104
-rw-r--r--system/database/drivers/sqlsrv/sqlsrv_forge.php61
-rw-r--r--system/database/drivers/sqlsrv/sqlsrv_result.php16
-rw-r--r--system/database/drivers/sqlsrv/sqlsrv_utility.php47
4 files changed, 45 insertions, 183 deletions
diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 9f2f88699..8cc500f55 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -29,7 +29,7 @@
* SQLSRV Database Adapter Class
*
* Note: _DB is an extender class that the app controller
- * creates dynamically based on whether the active record
+ * creates dynamically based on whether the query builder
* class is being used or not.
*
* @package CodeIgniter
@@ -55,7 +55,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
* used for the count_all() and count_all_results() functions.
*/
protected $_count_string = 'SELECT COUNT(*) AS ';
- protected $_random_keyword = ' ASC'; // not currently supported
+ protected $_random_keyword = ' NEWID()'; // not currently supported
/**
* Non-persistent database connection
@@ -68,12 +68,12 @@ class CI_DB_sqlsrv_driver extends CI_DB {
$character_set = (0 === strcasecmp('utf8', $this->char_set)) ? 'UTF-8' : $this->char_set;
$connection = array(
- 'UID' => empty($this->username) ? '' : $this->username,
- 'PWD' => empty($this->password) ? '' : $this->password,
- 'Database' => $this->database,
- 'ConnectionPooling' => $pooling ? 1 : 0,
+ 'UID' => empty($this->username) ? '' : $this->username,
+ 'PWD' => empty($this->password) ? '' : $this->password,
+ 'Database' => $this->database,
+ 'ConnectionPooling' => $pooling ? 1 : 0,
'CharacterSet' => $character_set,
- 'ReturnDatesAsStrings' => 1
+ 'ReturnDatesAsStrings' => 1
);
// If the username and password are both empty, assume this is a
@@ -259,23 +259,6 @@ class CI_DB_sqlsrv_driver extends CI_DB {
// --------------------------------------------------------------------
/**
- * Parse major version
- *
- * Grabs the major version number from the
- * database server version string passed in.
- *
- * @param string $version
- * @return int major version number
- */
- protected function _parse_major_version($version)
- {
- preg_match('/([0-9]+)\.([0-9]+)\.([0-9]+)/', $version, $ver_info);
- return $ver_info[1]; // return the major version b/c that's all we're interested in.
- }
-
- // --------------------------------------------------------------------
-
- /**
* Database version number
*
* @return string
@@ -410,21 +393,6 @@ class CI_DB_sqlsrv_driver extends CI_DB {
// --------------------------------------------------------------------
/**
- * Escape the SQL Identifiers
- *
- * This function escapes column and table names
- *
- * @param string
- * @return string
- */
- public function _escape_identifiers($item)
- {
- return $item;
- }
-
- // --------------------------------------------------------------------
-
- /**
* From Tables
*
* This function implicitly groups FROM tables so there is no confusion
@@ -446,23 +414,6 @@ class CI_DB_sqlsrv_driver extends CI_DB {
// --------------------------------------------------------------------
/**
- * Insert statement
- *
- * Generates a platform-specific insert string from the supplied data
- *
- * @param string the table name
- * @param array the insert keys
- * @param array the insert values
- * @return string
- */
- protected function _insert($table, $keys, $values)
- {
- return 'INSERT INTO '.$table.' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')';
- }
-
- // --------------------------------------------------------------------
-
- /**
* Update statement
*
* Generates a platform-specific update string from the supplied data
@@ -470,18 +421,26 @@ class CI_DB_sqlsrv_driver extends CI_DB {
* @param string the table name
* @param array the update data
* @param array the where clause
- * @param array the orderby clause
- * @param array the limit clause
+ * @param array the orderby clause (ignored)
+ * @param array the limit clause (ignored)
+ * @param array the like clause
* @return string
*/
- protected function _update($table, $values, $where)
+ protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
{
foreach($values as $key => $val)
{
- $valstr[] = $key." = ".$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 '.implode(' ', $where);
+ return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where;
}
// --------------------------------------------------------------------
@@ -490,15 +449,16 @@ class CI_DB_sqlsrv_driver extends CI_DB {
* Truncate statement
*
* Generates a platform-specific truncate string from the supplied data
- * If the database does not support the truncate() command
- * This function maps to "DELETE FROM table"
+ *
+ * If the database does not support the truncate() command,
+ * then this method maps to 'DELETE FROM table'
*
* @param string the table name
* @return string
*/
protected function _truncate($table)
{
- return "TRUNCATE ".$table;
+ return 'TRUNCATE TABLE '.$table;
}
// --------------------------------------------------------------------
@@ -510,12 +470,22 @@ class CI_DB_sqlsrv_driver extends CI_DB {
*
* @param string the table name
* @param array the where clause
+ * @param array the like clause
* @param string the limit clause
* @return string
*/
- protected function _delete($table, $where)
+ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
{
- return 'DELETE FROM '.$table.' WHERE '.implode(' ', $where);
+ $conditions = array();
+
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
+
+ $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : '';
+
+ return ($limit)
+ ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete'
+ : 'DELETE FROM '.$table.$conditions;
}
// --------------------------------------------------------------------
@@ -551,4 +521,4 @@ class CI_DB_sqlsrv_driver extends CI_DB {
}
/* End of file sqlsrv_driver.php */
-/* Location: ./system/database/drivers/sqlsrv/sqlsrv_driver.php */ \ No newline at end of file
+/* Location: ./system/database/drivers/sqlsrv/sqlsrv_driver.php */
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index 0dc7b5242..e9143b269 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -34,43 +34,7 @@
*/
class CI_DB_sqlsrv_forge extends CI_DB_forge {
- /**
- * Create database
- *
- * @param string the database name
- * @return string
- */
- public function _create_database($name)
- {
- return "CREATE DATABASE ".$name;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Drop database
- *
- * @param string the database name
- * @return bool
- */
- public function _drop_database($name)
- {
- return "DROP DATABASE ".$name;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Drop Table
- *
- * @return bool
- */
- public function _drop_table($table)
- {
- return "DROP TABLE ".$this->db->_escape_identifiers($table);
- }
-
- // --------------------------------------------------------------------
+ protected $_drop_table = 'DROP TABLE %s';
/**
* Create Table
@@ -82,7 +46,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
* @param bool should 'IF NOT EXISTS' be added to the SQL
* @return bool
*/
- public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
+ protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
{
$sql = 'CREATE TABLE ';
@@ -91,7 +55,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
$sql .= 'IF NOT EXISTS ';
}
- $sql .= $this->db->_escape_identifiers($table)." (";
+ $sql .= $this->db->escape_identifiers($table).' (';
$current_field_count = 0;
foreach ($fields as $field => $attributes)
@@ -193,7 +157,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
* @param string the field after which we should add the new field
* @return string
*/
- public function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
+ protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
{
$sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name);
@@ -228,23 +192,6 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
}
- // --------------------------------------------------------------------
-
- /**
- * Rename a table
- *
- * Generates a platform-specific query so that a table can be renamed
- *
- * @param string the old table name
- * @param string the new table name
- * @return string
- */
- public function _rename_table($table_name, $new_table_name)
- {
- // I think this syntax will work, but can find little documentation on renaming tables in MSSQL
- return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name);
- }
-
}
/* End of file sqlsrv_forge.php */
diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index 10d790e4b..0802677fc 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -124,22 +124,6 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
// --------------------------------------------------------------------
/**
- * Data Seek
- *
- * Moves the internal pointer to the desired offset. We call
- * this internally before fetching results to make sure the
- * result set starts at zero
- *
- * @return void
- */
- protected function _data_seek($n = 0)
- {
- // Not implemented
- }
-
- // --------------------------------------------------------------------
-
- /**
* Result - associative array
*
* Returns the result set as an array
diff --git a/system/database/drivers/sqlsrv/sqlsrv_utility.php b/system/database/drivers/sqlsrv/sqlsrv_utility.php
index 5830c62de..394964b6a 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_utility.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_utility.php
@@ -34,55 +34,16 @@
*/
class CI_DB_sqlsrv_utility extends CI_DB_utility {
- /**
- * List databases
- *
- * @return string
- */
- public function _list_databases()
- {
- return "EXEC sp_helpdb"; // Can also be: EXEC sp_databases
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Optimize table query
- *
- * Generates a platform-specific query so that a table can be optimized
- *
- * @param string the table name
- * @return bool
- */
- public function _optimize_table($table)
- {
- return FALSE; // Is this supported in MS SQL?
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Repair table query
- *
- * Generates a platform-specific query so that a table can be repaired
- *
- * @param string the table name
- * @return bool
- */
- public function _repair_table($table)
- {
- return FALSE; // Is this supported in MS SQL?
- }
-
- // --------------------------------------------------------------------
+ protected $_list_databases = 'EXEC sp_helpdb'; // Can also be: EXEC sp_databases
+ protected $_optimize_table = 'ALTER INDEX all ON %s REORGANIZE';
/**
- * MSSQL Export
+ * SQLSRV Export
*
* @param array Preferences
* @return mixed
*/
- public function _backup($params = array())
+ protected function _backup($params = array())
{
// Currently unsupported
return $this->db->display_error('db_unsuported_feature');