/inc/MDB2/Driver/Manager/mssql.php
PHP | 364 lines | 134 code | 17 blank | 213 comment | 22 complexity | d85f2b0fc1fa8d2bd4ceb4bb02c6eb48 MD5 | raw file
Possible License(s): GPL-2.0, BSD-3-Clause, Apache-2.0, LGPL-2.1
- <?php
- // +----------------------------------------------------------------------+
- // | PHP versions 4 and 5 |
- // +----------------------------------------------------------------------+
- // | Copyright (c) 1998-2004 Manuel Lemos, Tomas V.V.Cox, |
- // | Stig. S. Bakken, Lukas Smith |
- // | All rights reserved. |
- // +----------------------------------------------------------------------+
- // | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB |
- // | API as well as database abstraction for PHP applications. |
- // | This LICENSE is in the BSD license style. |
- // | |
- // | Redistribution and use in source and binary forms, with or without |
- // | modification, are permitted provided that the following conditions |
- // | are met: |
- // | |
- // | Redistributions of source code must retain the above copyright |
- // | notice, this list of conditions and the following disclaimer. |
- // | |
- // | Redistributions in binary form must reproduce the above copyright |
- // | notice, this list of conditions and the following disclaimer in the |
- // | documentation and/or other materials provided with the distribution. |
- // | |
- // | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken, |
- // | Lukas Smith nor the names of his contributors may be used to endorse |
- // | or promote products derived from this software without specific prior|
- // | written permission. |
- // | |
- // | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
- // | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
- // | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
- // | FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
- // | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
- // | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
- // | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
- // | OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
- // | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
- // | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
- // | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
- // | POSSIBILITY OF SUCH DAMAGE. |
- // +----------------------------------------------------------------------+
- // | Author: Frank M. Kromann <frank@kromann.info> |
- // +----------------------------------------------------------------------+
- //
- // $Id$
- //
- require_once 'MDB2/Driver/Manager/Common.php';
- /**
- * MDB2 MSSQL driver for the management modules
- *
- * @package MDB2
- * @category Database
- * @author Frank M. Kromann <frank@kromann.info>
- */
- class MDB2_Driver_Manager_mssql extends MDB2_Driver_Manager_Common
- {
- // }}}
- // {{{ createDatabase()
- /**
- * create a new database
- *
- * @param string $name name of the database that should be created
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function createDatabase($name)
- {
- $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
- $database_device = (isset($db->options['database_device'])) ? $db->options['database_device'] : 'DEFAULT';
- $database_size = (isset($db->options['database_size'])) ? '='.$db->options['database_size'] : '';
- return $db->standaloneQuery("CREATE DATABASE $name ON $database_device$database_size");
- }
- // }}}
- // {{{ dropDatabase()
- /**
- * drop an existing database
- *
- * @param string $name name of the database that should be dropped
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function dropDatabase($name)
- {
- $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
- return $db->standaloneQuery("DROP DATABASE $name");
- }
- // }}}
- // {{{ alterTable()
- /**
- * alter an existing table
- *
- * @param string $name name of the table that is intended to be changed.
- * @param array $changes associative array that contains the details of each type
- * of change that is intended to be performed. The types of
- * changes that are currently supported are defined as follows:
- *
- * name
- *
- * New name for the table.
- *
- * added_fields
- *
- * Associative array with the names of fields to be added as
- * indexes of the array. The value of each entry of the array
- * should be set to another associative array with the properties
- * of the fields to be added. The properties of the fields should
- * be the same as defined by the Metabase parser.
- *
- * Additionally, there should be an entry named Declaration that
- * is expected to contain the portion of the field declaration already
- * in DBMS specific SQL code as it is used in the CREATE TABLE statement.
- *
- * removed_fields
- *
- * Associative array with the names of fields to be removed as indexes
- * of the array. Currently the values assigned to each entry are ignored.
- * An empty array should be used for future compatibility.
- *
- * renamed_fields
- *
- * Associative array with the names of fields to be renamed as indexes
- * of the array. The value of each entry of the array should be set to
- * another associative array with the entry named name with the new
- * field name and the entry named Declaration that is expected to contain
- * the portion of the field declaration already in DBMS specific SQL code
- * as it is used in the CREATE TABLE statement.
- *
- * changed_fields
- *
- * Associative array with the names of the fields to be changed as indexes
- * of the array. Keep in mind that if it is intended to change either the
- * name of a field and any other properties, the changed_fields array entries
- * should have the new names of the fields as array indexes.
- *
- * The value of each entry of the array should be set to another associative
- * array with the properties of the fields to that are meant to be changed as
- * array entries. These entries should be assigned to the new values of the
- * respective properties. The properties of the fields should be the same
- * as defined by the Metabase parser.
- *
- * If the default property is meant to be added, removed or changed, there
- * should also be an entry with index ChangedDefault assigned to 1. Similarly,
- * if the notnull constraint is to be added or removed, there should also be
- * an entry with index ChangedNotNull assigned to 1.
- *
- * Additionally, there should be an entry named Declaration that is expected
- * to contain the portion of the field changed declaration already in DBMS
- * specific SQL code as it is used in the CREATE TABLE statement.
- * Example
- * array(
- * 'name' => 'userlist',
- * 'added_fields' => array(
- * 'quota' => array(
- * 'type' => 'integer',
- * 'unsigned' => 1
- * 'declaration' => 'quota INT'
- * )
- * ),
- * 'removed_fields' => array(
- * 'file_limit' => array(),
- * 'time_limit' => array()
- * ),
- * 'changed_fields' => array(
- * 'gender' => array(
- * 'default' => 'M',
- * 'change_default' => 1,
- * 'declaration' => "gender CHAR(1) DEFAULT 'M'"
- * )
- * ),
- * 'renamed_fields' => array(
- * 'sex' => array(
- * 'name' => 'gender',
- * 'declaration' => "gender CHAR(1) DEFAULT 'M'"
- * )
- * )
- * )
- *
- * @param boolean $check indicates whether the function should just check if the DBMS driver
- * can perform the requested table alterations if the value is true or
- * actually perform them otherwise.
- * @access public
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- */
- function alterTable($name, $changes, $check)
- {
- $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
- if ($check) {
- foreach ($changes as $change_name => $change) {
- switch ($change_name) {
- case 'added_fields':
- break;
- case 'removed_fields':
- case 'name':
- case 'renamed_fields':
- case 'changed_fields':
- default:
- return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
- 'alterTable: change type "'.$change_name.'" not yet supported');
- }
- }
- return MDB2_OK;
- } else {
- if (isset($changes[$change = 'removed_fields'])
- || isset($changes[$change = 'name'])
- || isset($changes[$change = 'renamed_fields'])
- || isset($changes[$change = 'changed_fields'])
- ) {
- return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
- 'alterTable: change type "'.$change.'" is not supported by the server"');
- }
- $query = '';
- if (isset($changes['added_fields'])) {
- if ($query) {
- $query.= ', ';
- }
- $query.= 'ADD ';
- $fields = $changes['added_fields'];
- foreach ($fields as $field) {
- if ($query) {
- $query.= ', ';
- }
- $query.= $field['declaration'];
- }
- }
- return $query ? $db->query("ALTER TABLE $name $query") : MDB2_OK;
- }
- }
- // }}}
- // {{{ listTables()
- /**
- * list all tables in the current database
- *
- * @return mixed data array on success, a MDB error on failure
- * @access public
- */
- function listTables()
- {
- $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
- $query = 'EXECUTE sp_tables @table_type = "\'TABLE\'"';
- $table_names = $db->queryCol($query, null, 2);
- if (MDB2::isError($table_names)) {
- return $table_names;
- }
- $tables = array();
- for ($i = 0, $j = count($table_names); $i <$j; ++$i) {
- if (!$this->_isSequenceName($db, $table_names[$i])) {
- $tables[] = $table_names[$i];
- }
- }
- return $tables;
- }
- // }}}
- // {{{ listTableFields()
- /**
- * list all fields in a tables in the current database
- *
- * @param string $table name of table that should be used in method
- * @return mixed data array on success, a MDB error on failure
- * @access public
- */
- function listTableFields($table)
- {
- $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
- $result = $db->query("SELECT * FROM $table");
- if (MDB2::isError($result)) {
- return $result;
- }
- $columns = $result->getColumnNames();
- $result->free();
- if (MDB2::isError($columns)) {
- return $columns;
- }
- return array_flip($columns);
- }
- // }}}
- // {{{ listTableIndexes()
- /**
- * list all indexes in a table
- *
- * @param string $table name of table that should be used in method
- * @return mixed data array on success, a MDB error on failure
- * @access public
- */
- function listTableIndexes($table)
- {
- $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
- $key_name = 'INDEX_NAME';
- $pk_name = 'PK_NAME';
- if ($db->options['portability'] & MDB2_PORTABILITY_LOWERCASE) {
- $key_name = strtolower($key_name);
- $pk_name = strtolower($pk_name);
- }
- $query = "EXEC sp_statistics @table_name='$table'";
- $indexes_all = $db->query($query, 'text', $key_name);
- if (MDB2::isError($indexes_all)) {
- return $indexes_all;
- }
- $query = "EXEC sp_pkeys @table_name='$table'";
- $pk_all = $db->queryCol($query, 'text', $pk_name);
- $found = $indexes = array();
- for ($index = 0, $j = count($indexes_all); $index < $j; ++$index) {
- if (!in_array($indexes_all[$index], $pk_all)
- && $indexes_all[$index] != null
- && !isset($found[$indexes_all[$index]])
- ) {
- $indexes[] = $indexes_all[$index];
- $found[$indexes_all[$index]] = 1;
- }
- }
- return $indexes;
- }
- // }}}
- // {{{ createSequence()
- /**
- * create sequence
- *
- * @param string $seq_name name of the sequence to be created
- * @param string $start start value of the sequence; default is 1
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function createSequence($seq_name, $start = 1)
- {
- $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
- $sequence_name = $db->getSequenceName($seq_name);
- $query = "CREATE TABLE $sequence_name (".$db->options['seqname_col_name']
- ." INT NOT NULL IDENTITY($start,1) PRIMARY KEY CLUSTERED)";
- return $db->query($query);
- }
- // }}}
- // {{{ dropSequence()
- /**
- * drop existing sequence
- *
- * @param string $seq_name name of the sequence to be dropped
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function dropSequence($seq_name)
- {
- $db =& $GLOBALS['_MDB2_databases'][$this->db_index];
- $sequence_name = $db->getSequenceName($seq_name);
- return $db->Query("DROP TABLE $sequence_name");
- }
- }
- ?>