diff options
Diffstat (limited to 'system/database/drivers/sqlsrv/sqlsrv_driver.php')
| -rw-r--r-- | system/database/drivers/sqlsrv/sqlsrv_driver.php | 90 |
1 files changed, 68 insertions, 22 deletions
diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php index 32f1a59d6..09ccc0200 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 * @@ -24,6 +24,7 @@ * @since Version 2.0.3 * @filesource */ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * SQLSRV Database Adapter Class @@ -40,20 +41,38 @@ */ class CI_DB_sqlsrv_driver extends CI_DB { + /** + * Database driver + * + * @var string + */ public $dbdriver = 'sqlsrv'; - // The character used for escaping - protected $_escape_char = '"'; + // -------------------------------------------------------------------- + /** + * ORDER BY random keyword + * + * @var string + */ protected $_random_keyword = ' NEWID()'; - // SQLSRV-specific properties + /** + * Quoted identifier flag + * + * Whether to use SQL-92 standard quoted identifier + * (double quotes) or brackets for identifier escaping. + * + * @var bool + */ protected $_quoted_identifier = TRUE; + // -------------------------------------------------------------------- + /** - * Non-persistent database connection + * Database connection * - * @param bool $pooling = FALSE + * @param bool $pooling * @return resource */ public function db_connect($pooling = FALSE) @@ -106,7 +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 = '') @@ -130,7 +149,7 @@ 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) @@ -145,7 +164,7 @@ class CI_DB_sqlsrv_driver extends CI_DB { /** * Begin Transaction * - * @param bool $test_mode = FALSE + * @param bool $test_mode * @return bool */ public function trans_begin($test_mode = FALSE) @@ -205,8 +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) @@ -256,8 +275,12 @@ class CI_DB_sqlsrv_driver extends CI_DB { { return $this->data_cache['version']; } + elseif ( ! $this->conn_id) + { + $this->initialize(); + } - if (($info = sqlsrv_server_info($this->conn_id)) === FALSE) + if ( ! $this->conn_id OR ($info = sqlsrv_server_info($this->conn_id)) === FALSE) { return FALSE; } @@ -273,7 +296,7 @@ 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) { @@ -297,7 +320,7 @@ 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 = '') @@ -312,7 +335,7 @@ class CI_DB_sqlsrv_driver extends CI_DB { * * Generates a platform-specific query so that the column data can be retrieved * - * @param string the table name + * @param string $table * @return string */ protected function _field_data($table) @@ -365,8 +388,8 @@ class CI_DB_sqlsrv_driver extends CI_DB { * * Generates a platform-specific update string from the supplied data * - * @param string the table name - * @param array the update data + * @param string $table + * @param array $values * @return string */ protected function _update($table, $values) @@ -383,10 +406,10 @@ 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) @@ -401,7 +424,7 @@ class CI_DB_sqlsrv_driver extends CI_DB { * * Generates a platform-specific delete string from the supplied data * - * @param string the table name + * @param string $table * @return string */ protected function _delete($table) @@ -417,11 +440,11 @@ class CI_DB_sqlsrv_driver extends CI_DB { // -------------------------------------------------------------------- /** - * Limit string + * LIMIT * * Generates a platform-specific LIMIT clause * - * @param string the sql query string + * @param string $sql SQL Query * @return string */ protected function _limit($sql) @@ -473,6 +496,29 @@ class CI_DB_sqlsrv_driver extends CI_DB { // -------------------------------------------------------------------- /** + * 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, $values) + { + // Multiple-value inserts are only supported as of SQL Server 2008 + if (version_compare($this->version(), '10', '>=')) + { + return parent::_insert_batch($table, $keys, $values); + } + + return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE; + } + + // -------------------------------------------------------------------- + + /** * Close DB Connection * * @return void |