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-rw-r--r--system/database/drivers/sqlsrv/sqlsrv_driver.php347
-rw-r--r--system/database/drivers/sqlsrv/sqlsrv_forge.php198
-rw-r--r--system/database/drivers/sqlsrv/sqlsrv_result.php27
-rw-r--r--system/database/drivers/sqlsrv/sqlsrv_utility.php26
4 files changed, 293 insertions, 305 deletions
diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 951567033..ee9823ed1 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -21,15 +21,16 @@
* @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://codeigniter.com
- * @since Version 1.0
+ * @since Version 2.0.3
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* 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
@@ -40,39 +41,52 @@
*/
class CI_DB_sqlsrv_driver extends CI_DB {
+ /**
+ * Database driver
+ *
+ * @var string
+ */
public $dbdriver = 'sqlsrv';
- // The character used for escaping
- protected $_escape_char = '';
+ // --------------------------------------------------------------------
- // clause and character used for LIKE escape sequences
- protected $_like_escape_str = " ESCAPE '%s' ";
- protected $_like_escape_chr = '!';
+ /**
+ * ORDER BY random keyword
+ *
+ * @var array
+ */
+ protected $_random_keyword = array('NEWID()', 'RAND(%d)');
/**
- * The syntax to count rows is slightly different across different
- * database engines, so this string appears in each driver and is
- * used for the count_all() and count_all_results() functions.
+ * Quoted identifier flag
+ *
+ * Whether to use SQL-92 standard quoted identifier
+ * (double quotes) or brackets for identifier escaping.
+ *
+ * @var bool
*/
- protected $_count_string = 'SELECT COUNT(*) AS ';
- protected $_random_keyword = ' NEWID()'; // not currently supported
+ protected $_quoted_identifier = TRUE;
+
+ // --------------------------------------------------------------------
/**
- * Non-persistent database connection
+ * Database connection
*
+ * @param bool $pooling
* @return resource
*/
public function db_connect($pooling = FALSE)
{
- // Check for a UTF-8 charset being passed as CI's default 'utf8'.
- $character_set = (0 === strcasecmp('utf8', $this->char_set)) ? 'UTF-8' : $this->char_set;
+ $charset = in_array(strtolower($this->char_set), array('utf-8', 'utf8'), TRUE)
+ ? 'UTF-8' : SQLSRV_ENC_CHAR;
$connection = array(
'UID' => empty($this->username) ? '' : $this->username,
'PWD' => empty($this->password) ? '' : $this->password,
'Database' => $this->database,
- 'ConnectionPooling' => $pooling ? 1 : 0,
- 'CharacterSet' => $character_set,
+ 'ConnectionPooling' => ($pooling === TRUE) ? 1 : 0,
+ 'CharacterSet' => $charset,
+ 'Encrypt' => ($this->encrypt === TRUE) ? 1 : 0,
'ReturnDatesAsStrings' => 1
);
@@ -83,7 +97,15 @@ class CI_DB_sqlsrv_driver extends CI_DB {
unset($connection['UID'], $connection['PWD']);
}
- return sqlsrv_connect($this->hostname, $connection);
+ $this->conn_id = sqlsrv_connect($this->hostname, $connection);
+
+ // Determine how identifiers are escaped
+ $query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi');
+ $query = $query->row_array();
+ $this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi'];
+ $this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']');
+
+ return $this->conn_id;
}
// --------------------------------------------------------------------
@@ -103,7 +125,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
/**
* Select the database
*
- * @param string database name
+ * @param string $database
* @return bool
*/
public function db_select($database = '')
@@ -113,7 +135,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
$database = $this->database;
}
- if ($this->_execute('USE '.$database))
+ if ($this->_execute('USE '.$this->escape_identifiers($database)))
{
$this->database = $database;
return TRUE;
@@ -127,16 +149,14 @@ class CI_DB_sqlsrv_driver extends CI_DB {
/**
* Execute the query
*
- * @param string an SQL query
+ * @param string $sql an SQL query
* @return resource
*/
protected function _execute($sql)
{
- return sqlsrv_query($this->conn_id,
- $sql,
- NULL,
- array('Scrollable'=> SQLSRV_CURSOR_STATIC, 'SendStreamParamsAtExec' => TRUE)
- );
+ return ($this->is_write_type($sql) && stripos($sql, 'INSERT') === FALSE)
+ ? sqlsrv_query($this->conn_id, $sql)
+ : sqlsrv_query($this->conn_id, $sql, NULL, array('Scrollable' => SQLSRV_CURSOR_STATIC));
}
// --------------------------------------------------------------------
@@ -144,17 +164,13 @@ class CI_DB_sqlsrv_driver extends CI_DB {
/**
* Begin Transaction
*
+ * @param bool $test_mode
* @return bool
*/
public function trans_begin($test_mode = FALSE)
{
- if ( ! $this->trans_enabled)
- {
- return TRUE;
- }
-
// When transactions are nested we only begin/commit/rollback the outermost ones
- if ($this->_trans_depth > 0)
+ if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
{
return TRUE;
}
@@ -162,7 +178,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
// Reset the transaction failure flag.
// If the $test_mode flag is set to TRUE transactions will be rolled back
// even if the queries produce a successful result.
- $this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE;
+ $this->_trans_failure = ($test_mode === TRUE);
return sqlsrv_begin_transaction($this->conn_id);
}
@@ -176,13 +192,8 @@ class CI_DB_sqlsrv_driver extends CI_DB {
*/
public function trans_commit()
{
- if ( ! $this->trans_enabled)
- {
- return TRUE;
- }
-
// When transactions are nested we only begin/commit/rollback the outermost ones
- if ($this->_trans_depth > 0)
+ if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
{
return TRUE;
}
@@ -199,13 +210,8 @@ class CI_DB_sqlsrv_driver extends CI_DB {
*/
public function trans_rollback()
{
- if ( ! $this->trans_enabled)
- {
- return TRUE;
- }
-
// When transactions are nested we only begin/commit/rollback the outermost ones
- if ($this->_trans_depth > 0)
+ if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
{
return TRUE;
}
@@ -218,8 +224,8 @@ class CI_DB_sqlsrv_driver extends CI_DB {
/**
* Escape String
*
- * @param string
- * @param bool whether or not the string will be used in a LIKE condition
+ * @param string $str
+ * @param bool $like Whether or not the string will be used in a LIKE condition
* @return string
*/
public function escape_str($str, $like = FALSE)
@@ -237,7 +243,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
*/
public function affected_rows()
{
- return @sqlrv_rows_affected($this->conn_id);
+ return sqlsrv_rows_affected($this->result_id);
}
// --------------------------------------------------------------------
@@ -269,42 +275,17 @@ class CI_DB_sqlsrv_driver extends CI_DB {
{
return $this->data_cache['version'];
}
-
- if (($info = sqlsrv_server_info($this->conn_id)) === FALSE)
+ elseif ( ! $this->conn_id)
{
- return FALSE;
+ $this->initialize();
}
- return $this->data_cache['version'] = $info['SQLServerVersion'];
- }
-
- // --------------------------------------------------------------------
-
- /**
- * "Count All" query
- *
- * Generates a platform-specific query string that counts all records in
- * the specified database
- *
- * @param string
- * @return int
- */
- public function count_all($table = '')
- {
- if ($table == '')
- {
- return 0;
- }
-
- $query = $this->query("SELECT COUNT(*) AS numrows FROM " . $this->dbprefix . $table);
- if ($query->num_rows() == 0)
+ if ( ! $this->conn_id OR ($info = sqlsrv_server_info($this->conn_id)) === FALSE)
{
- return 0;
+ return FALSE;
}
- $row = $query->row();
- $this->_reset_select();
- return (int) $row->numrows;
+ return $this->data_cache['version'] = $info['SQLServerVersion'];
}
// --------------------------------------------------------------------
@@ -315,11 +296,21 @@ class CI_DB_sqlsrv_driver extends CI_DB {
* Generates a platform-specific query string so that the table names can be fetched
*
* @param bool
- * @return string
+ * @return string $prefix_limit
*/
protected function _list_tables($prefix_limit = FALSE)
{
- return "SELECT name FROM sysobjects WHERE type = 'U' ORDER BY name";
+ $sql = 'SELECT '.$this->escape_identifiers('name')
+ .' FROM '.$this->escape_identifiers('sysobjects')
+ .' WHERE '.$this->escape_identifiers('type')." = 'U'";
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ $sql .= ' AND '.$this->escape_identifiers('name')." LIKE '".$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_escape_like_str, $this->_escape_like_chr);
+ }
+
+ return $sql.' ORDER BY '.$this->escape_identifiers('name');
}
// --------------------------------------------------------------------
@@ -329,27 +320,52 @@ class CI_DB_sqlsrv_driver extends CI_DB {
*
* Generates a platform-specific query string so that the column names can be fetched
*
- * @param string the table name
+ * @param string $table
* @return string
*/
protected function _list_columns($table = '')
{
- return "SELECT * FROM INFORMATION_SCHEMA.Columns WHERE TABLE_NAME = '".$table."'";
+ return 'SELECT COLUMN_NAME
+ FROM INFORMATION_SCHEMA.Columns
+ WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table));
}
// --------------------------------------------------------------------
/**
- * Field data query
- *
- * Generates a platform-specific query so that the column data can be retrieved
+ * Returns an object with field data
*
- * @param string the table name
- * @return string
+ * @param string $table
+ * @return array
*/
- protected function _field_data($table)
+ public function field_data($table = '')
{
- return 'SELECT TOP 1 * FROM '.$table;
+ if ($table === '')
+ {
+ return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
+ }
+
+ $sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION, COLUMN_DEFAULT
+ FROM INFORMATION_SCHEMA.Columns
+ WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table));
+
+ if (($query = $this->query($sql)) === FALSE)
+ {
+ return FALSE;
+ }
+ $query = $query->result_object();
+
+ $retval = array();
+ for ($i = 0, $c = count($query); $i < $c; $i++)
+ {
+ $retval[$i] = new stdClass();
+ $retval[$i]->name = $query[$i]->COLUMN_NAME;
+ $retval[$i]->type = $query[$i]->DATA_TYPE;
+ $retval[$i]->max_length = ($query[$i]->CHARACTER_MAXIMUM_LENGTH > 0) ? $query[$i]->CHARACTER_MAXIMUM_LENGTH : $query[$i]->NUMERIC_PRECISION;
+ $retval[$i]->default = $query[$i]->COLUMN_DEFAULT;
+ }
+
+ return $retval;
}
// --------------------------------------------------------------------
@@ -393,54 +409,19 @@ class CI_DB_sqlsrv_driver extends CI_DB {
// --------------------------------------------------------------------
/**
- * From Tables
- *
- * This function implicitly groups FROM tables so there is no confusion
- * about operator precedence in harmony with SQL standards
- *
- * @param array
- * @return string
- */
- protected function _from_tables($tables)
- {
- if ( ! is_array($tables))
- {
- $tables = array($tables);
- }
-
- return implode(', ', $tables);
- }
-
- // --------------------------------------------------------------------
-
- /**
* Update statement
*
* Generates a platform-specific update string from the supplied data
*
- * @param string the table name
- * @param array the update data
- * @param array the where clause
- * @param array the orderby clause (ignored)
- * @param array the limit clause (ignored)
- * @param array the like clause
+ * @param string $table
+ * @param array $values
* @return string
*/
- protected function _update($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(', ', $valstr).' WHERE '.$where;
+ $this->qb_limit = FALSE;
+ $this->qb_orderby = array();
+ return parent::_update($table, $values);
}
// --------------------------------------------------------------------
@@ -450,10 +431,10 @@ class CI_DB_sqlsrv_driver extends CI_DB {
*
* Generates a platform-specific truncate string from the supplied data
*
- * If the database does not support the truncate() command,
+ * If the database does not support the TRUNCATE statement,
* then this method maps to 'DELETE FROM table'
*
- * @param string the table name
+ * @param string $table
* @return string
*/
protected function _truncate($table)
@@ -468,41 +449,96 @@ class CI_DB_sqlsrv_driver extends CI_DB {
*
* Generates a platform-specific delete string from the supplied data
*
- * @param string the table name
- * @param array the where clause
- * @param array the like clause
- * @param string the limit clause
+ * @param string $table
* @return string
*/
- protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ protected function _delete($table)
{
- $conditions = array();
-
- empty($where) OR $conditions[] = implode(' ', $where);
- empty($like) OR $conditions[] = implode(' ', $like);
-
- $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : '';
+ if ($this->qb_limit)
+ {
+ return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete';
+ }
- return ($limit)
- ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete'
- : 'DELETE FROM '.$table.$conditions;
+ return parent::_delete($table);
}
// --------------------------------------------------------------------
/**
- * Limit string
+ * LIMIT
*
* Generates a platform-specific LIMIT clause
*
- * @param string the sql query string
- * @param int the number of rows to limit the query to
- * @param int the offset value
+ * @param string $sql SQL Query
* @return string
*/
- protected function _limit($sql, $limit, $offset)
+ protected function _limit($sql)
+ {
+ // As of SQL Server 2012 (11.0.*) OFFSET is supported
+ if (version_compare($this->version(), '11', '>='))
+ {
+ return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY';
+ }
+
+ $limit = $this->qb_offset + $this->qb_limit;
+
+ // An ORDER BY clause is required for ROW_NUMBER() to work
+ if ($this->qb_offset && ! empty($this->qb_orderby))
+ {
+ $orderby = $this->_compile_order_by();
+
+ // We have to strip the ORDER BY clause
+ $sql = trim(substr($sql, 0, strrpos($sql, $orderby)));
+
+ // Get the fields to select from our subquery, so that we can avoid CI_rownum appearing in the actual results
+ if (count($this->qb_select) === 0)
+ {
+ $select = '*'; // Inevitable
+ }
+ else
+ {
+ // Use only field names and their aliases, everything else is out of our scope.
+ $select = array();
+ $field_regexp = ($this->_quoted_identifier)
+ ? '("[^\"]+")' : '(\[[^\]]+\])';
+ for ($i = 0, $c = count($this->qb_select); $i < $c; $i++)
+ {
+ $select[] = preg_match('/(?:\s|\.)'.$field_regexp.'$/i', $this->qb_select[$i], $m)
+ ? $m[1] : $this->qb_select[$i];
+ }
+ $select = implode(', ', $select);
+ }
+
+ return 'SELECT '.$select." FROM (\n\n"
+ .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
+ ."\n\n) ".$this->escape_identifiers('CI_subquery')
+ ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit;
+ }
+
+ return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Insert batch statement
+ *
+ * Generates a platform-specific insert string from the supplied data.
+ *
+ * @param string $table Table name
+ * @param array $keys INSERT keys
+ * @param array $values INSERT values
+ * @return string|bool
+ */
+ protected function _insert_batch($table, $keys, $values)
{
- return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.($limit + $offset).' ', $sql);
+ // Multiple-value inserts are only supported as of SQL Server 2008
+ if (version_compare($this->version(), '10', '>='))
+ {
+ return parent::_insert_batch($table, $keys, $values);
+ }
+
+ return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE;
}
// --------------------------------------------------------------------
@@ -510,12 +546,11 @@ class CI_DB_sqlsrv_driver extends CI_DB {
/**
* Close DB Connection
*
- * @param resource
* @return void
*/
- protected function _close($conn_id)
+ protected function _close()
{
- @sqlsrv_close($conn_id);
+ @sqlsrv_close($this->conn_id);
}
}
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index e9143b269..da8f68c56 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -21,9 +21,10 @@
* @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://codeigniter.com
- * @since Version 1.0
+ * @since Version 2.0.3
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* SQLSRV Forge Class
@@ -34,162 +35,99 @@
*/
class CI_DB_sqlsrv_forge extends CI_DB_forge {
- protected $_drop_table = 'DROP TABLE %s';
-
/**
- * Create Table
+ * CREATE TABLE IF statement
*
- * @param string the table name
- * @param array the fields
- * @param mixed primary key(s)
- * @param mixed key(s)
- * @param bool should 'IF NOT EXISTS' be added to the SQL
- * @return bool
+ * @var string
*/
- protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
- {
- $sql = 'CREATE TABLE ';
-
- if ($if_not_exists === TRUE)
- {
- $sql .= 'IF NOT EXISTS ';
- }
-
- $sql .= $this->db->escape_identifiers($table).' (';
- $current_field_count = 0;
-
- foreach ($fields as $field => $attributes)
- {
- // Numeric field names aren't allowed in databases, so if the key is
- // numeric, we know it was assigned by PHP and the developer manually
- // entered the field information, so we'll simply add it to the list
- if (is_numeric($field))
- {
- $sql .= "\n\t$attributes";
- }
- else
- {
- $attributes = array_change_key_case($attributes, CASE_UPPER);
-
- $sql .= "\n\t".$this->db->protect_identifiers($field);
-
- $sql .= ' '.$attributes['TYPE'];
-
- if (array_key_exists('CONSTRAINT', $attributes))
- {
- $sql .= '('.$attributes['CONSTRAINT'].')';
- }
+ protected $_create_table_if = "IF NOT EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'%s') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\nCREATE TABLE";
- if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
- {
- $sql .= ' UNSIGNED';
- }
-
- if (array_key_exists('DEFAULT', $attributes))
- {
- $sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
- }
-
- if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
- {
- $sql .= ' NULL';
- }
- else
- {
- $sql .= ' NOT NULL';
- }
+ /**
+ * DROP TABLE IF statement
+ *
+ * @var string
+ */
+ protected $_drop_table_if = "IF EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'%s') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\nDROP TABLE";
- if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
- {
- $sql .= ' AUTO_INCREMENT';
- }
- }
+ /**
+ * UNSIGNED support
+ *
+ * @var array
+ */
+ protected $_unsigned = array(
+ 'TINYINT' => 'SMALLINT',
+ 'SMALLINT' => 'INT',
+ 'INT' => 'BIGINT',
+ 'REAL' => 'FLOAT'
+ );
- // don't add a comma on the end of the last field
- if (++$current_field_count < count($fields))
- {
- $sql .= ',';
- }
- }
+ // --------------------------------------------------------------------
- if (count($primary_keys) > 0)
+ /**
+ * ALTER TABLE
+ *
+ * @param string $alter_type ALTER type
+ * @param string $table Table name
+ * @param mixed $field Column definition
+ * @return string|string[]
+ */
+ protected function _alter_table($alter_type, $table, $field)
+ {
+ if (in_array($alter_type, array('ADD', 'DROP'), TRUE))
{
- $primary_keys = $this->db->protect_identifiers($primary_keys);
- $sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")";
+ return parent::_alter_table($alter_type, $table, $field);
}
- if (is_array($keys) && count($keys) > 0)
+ $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' ALTER COLUMN ';
+ $sqls = array();
+ for ($i = 0, $c = count($field); $i < $c; $i++)
{
- foreach ($keys as $key)
- {
- if (is_array($key))
- {
- $key = $this->db->protect_identifiers($key);
- }
- else
- {
- $key = array($this->db->protect_identifiers($key));
- }
-
- $sql .= ",\n\tFOREIGN KEY (" . implode(', ', $key) . ")";
- }
+ $sqls[] = $sql.$this->_process_column($field[$i]);
}
- $sql .= "\n)";
-
- return $sql;
+ return $sqls;
}
// --------------------------------------------------------------------
/**
- * Alter table query
+ * Field attribute TYPE
*
- * Generates a platform-specific query so that a table can be altered
- * Called by add_column(), drop_column(), and column_alter(),
+ * Performs a data type mapping between different databases.
*
- * @param string the ALTER type (ADD, DROP, CHANGE)
- * @param string the column name
- * @param string the table name
- * @param string the column definition
- * @param string the default value
- * @param bool should 'NOT NULL' be added
- * @param string the field after which we should add the new field
- * @return string
+ * @param array &$attributes
+ * @return void
*/
- protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
+ protected function _attr_type(&$attributes)
{
- $sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name);
-
- // DROP has everything it needs now.
- if ($alter_type == 'DROP')
+ switch (strtoupper($attributes['TYPE']))
{
- return $sql;
- }
-
- $sql .= " $column_definition";
-
- if ($default_value != '')
- {
- $sql .= " DEFAULT \"$default_value\"";
+ case 'MEDIUMINT':
+ $attributes['TYPE'] = 'INTEGER';
+ $attributes['UNSIGNED'] = FALSE;
+ return;
+ case 'INTEGER':
+ $attributes['TYPE'] = 'INT';
+ return;
+ default: return;
}
+ }
- if ($null === NULL)
- {
- $sql .= ' NULL';
- }
- else
- {
- $sql .= ' NOT NULL';
- }
+ // --------------------------------------------------------------------
- if ($after_field != '')
+ /**
+ * Field attribute AUTO_INCREMENT
+ *
+ * @param array &$attributes
+ * @param array &$field
+ * @return void
+ */
+ protected function _attr_auto_increment(&$attributes, &$field)
+ {
+ if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE)
{
- return $sql.' AFTER '.$this->db->protect_identifiers($after_field);
+ $field['auto_increment'] = ' IDENTITY(1,1)';
}
-
- return $sql;
-
}
}
diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index 0802677fc..b084b84cd 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -24,6 +24,7 @@
* @since Version 1.0
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* SQLSRV Result Class
@@ -33,6 +34,7 @@
* @category Database
* @author EllisLab Dev Team
* @link http://codeigniter.com/user_guide/database/
+ * @since 2.0.3
*/
class CI_DB_sqlsrv_result extends CI_DB_result {
@@ -43,7 +45,9 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
*/
public function num_rows()
{
- return @sqlsrv_num_rows($this->result_id);
+ return is_int($this->num_rows)
+ ? $this->num_rows
+ : $this->num_rows = @sqlsrv_num_rows($this->result_id);
}
// --------------------------------------------------------------------
@@ -90,16 +94,12 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
public function field_data()
{
$retval = array();
- foreach (sqlsrv_field_metadata($this->result_id) as $offset => $field)
+ foreach (sqlsrv_field_metadata($this->result_id) as $i => $field)
{
- $F = new stdClass();
- $F->name = $field['Name'];
- $F->type = $field['Type'];
- $F->max_length = $field['Size'];
- $F->primary_key = 0;
- $F->default = '';
-
- $retval[] = $F;
+ $retval[$i] = new stdClass();
+ $retval[$i]->name = $field['Name'];
+ $retval[$i]->type = $field['Type'];
+ $retval[$i]->max_length = $field['Size'];
}
return $retval;
@@ -142,11 +142,12 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
*
* Returns the result set as an object
*
+ * @param string $class_name
* @return object
*/
- protected function _fetch_object()
+ protected function _fetch_object($class_name = 'stdClass')
{
- return sqlsrv_fetch_object($this->result_id);
+ return sqlsrv_fetch_object($this->result_id, $class_name);
}
}
diff --git a/system/database/drivers/sqlsrv/sqlsrv_utility.php b/system/database/drivers/sqlsrv/sqlsrv_utility.php
index 394964b6a..2bc7f9e03 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_utility.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_utility.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
/**
* CodeIgniter
*
@@ -21,9 +21,10 @@
* @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/)
* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://codeigniter.com
- * @since Version 1.0
+ * @since Version 2.0.3
* @filesource
*/
+defined('BASEPATH') OR exit('No direct script access allowed');
/**
* SQLSRV Utility Class
@@ -34,19 +35,32 @@
*/
class CI_DB_sqlsrv_utility extends CI_DB_utility {
+ /**
+ * List databases statement
+ *
+ * @var string
+ */
protected $_list_databases = 'EXEC sp_helpdb'; // Can also be: EXEC sp_databases
+
+ /**
+ * OPTIMIZE TABLE statement
+ *
+ * @var string
+ */
protected $_optimize_table = 'ALTER INDEX all ON %s REORGANIZE';
+ // --------------------------------------------------------------------
+
/**
- * SQLSRV Export
+ * Export
*
- * @param array Preferences
- * @return mixed
+ * @param array $params Preferences
+ * @return bool
*/
protected function _backup($params = array())
{
// Currently unsupported
- return $this->db->display_error('db_unsuported_feature');
+ return $this->db->display_error('db_unsupported_feature');
}
}
generated by cgit v1.2.3-24-g4f1b (git 2.32.0) at 2024-11-01 06:54:37 +0100