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+<?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';
+// {{{ class MDB2_Driver_Manager_mssql
+/**
+ * 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 =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $query = "CREATE DATABASE $name";
+ if($db->options['database_device']) {
+ $query.= ' ON '.$db->options['database_device'];
+ $query.= $db->options['database_size'] ? '='.$db->options['database_size'] : '';
+ }
+ return $db->standaloneQuery($query);
+ }
+
+ // }}}
+ // {{{ 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 =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ 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.
+ *
+ * add
+ *
+ * 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.
+ *
+ *
+ * remove
+ *
+ * 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.
+ *
+ * rename
+ *
+ * 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.
+ *
+ * change
+ *
+ * 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 change 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.
+ *
+ * Example
+ * array(
+ * 'name' => 'userlist',
+ * 'add' => array(
+ * 'quota' => array(
+ * 'type' => 'integer',
+ * 'unsigned' => 1
+ * )
+ * ),
+ * 'remove' => array(
+ * 'file_limit' => array(),
+ * 'time_limit' => array()
+ * ),
+ * 'change' => array(
+ * 'gender' => array(
+ * 'default' => 'M',
+ * )
+ * ),
+ * 'rename' => array(
+ * 'sex' => array(
+ * 'name' => 'gender',
+ * )
+ * ),
+ * )
+ *
+ * @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 =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ foreach ($changes as $change_name => $change) {
+ switch ($change_name) {
+ case 'add':
+ break;
+ case 'remove':
+ break;
+ case 'name':
+ case 'rename':
+ case 'change':
+ default:
+ return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
+ 'alterTable: change type "'.$change_name.'" not yet supported');
+ }
+ }
+
+ if ($check) {
+ return MDB2_OK;
+ }
+
+ $query = '';
+ if (array_key_exists('add', $changes)) {
+ if ($query) {
+ $query.= ', ';
+ }
+ $query.= 'ADD ';
+ foreach ($changes['add'] as $field_name => $field) {
+ if ($query) {
+ $query.= ', ';
+ }
+ $query.= $db->getDeclaration($field['type'], $field_name, $field);
+ }
+ }
+ if(array_key_exists('remove', $changes)) {
+ if ($query) {
+ $query.= ', ';
+ }
+ $query.= 'DROP COLUMN';
+ foreach ($changes['remove'] as $field_name => $field) {
+ if ($query) {
+ $query.= ', ';
+ }
+ $query.= $db->getDeclaration($field['type'], $field_name, $field);
+ }
+ }
+
+
+ if (!$query) {
+ return MDB2_OK;
+ }
+
+ return $db->query("ALTER TABLE $name $query");
+ }
+
+ // }}}
+ // {{{ listTables()
+
+ /**
+ * list all tables in the current database
+ *
+ * @return mixed data array on success, a MDB error on failure
+ * @access public
+ */
+ function listTables()
+ {
+ $db =& $this->getDBInstance();
+
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $query = 'EXEC sp_tables @table_type = "\'TABLE\'"';
+ $table_names = $db->queryCol($query, null, 2);
+ if (PEAR::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 =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $result = $db->query("SELECT * FROM [$table]");
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $columns = $result->getColumnNames();
+ $result->free();
+ if (PEAR::isError($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 =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $key_name = 'INDEX_NAME';
+ $pk_name = 'PK_NAME';
+ if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+ if ($db->options['field_case'] == CASE_LOWER) {
+ $key_name = strtolower($key_name);
+ $pk_name = strtolower($pk_name);
+ } else {
+ $key_name = strtoupper($key_name);
+ $pk_name = strtoupper($pk_name);
+ }
+ }
+ $query = "EXEC sp_statistics @table_name='$table'";
+ $indexes_all = $db->queryCol($query, 'text', $key_name);
+ if (PEAR::isError($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 =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $sequence_name = $db->getSequenceName($seq_name);
+ $seqcol_name = $db->options['seqcol_name'];
+ $query = "CREATE TABLE $sequence_name ($seqcol_name " .
+ "INT PRIMARY KEY CLUSTERED IDENTITY($start,1) NOT NULL)";
+
+ $res = $db->query($query);
+ if(PEAR::isError($res)) {
+ return $res;
+ }
+
+ if ($start == 1) {
+ return MDB2_OK;
+ }
+
+ $query = "SET IDENTITY_INSERT $sequence_name ON ".
+ "INSERT INTO $sequence_name ($seqcol_name) VALUES ($start)";
+ $res = $db->query($query);
+
+ if(!PEAR::isError($res)) {
+ return MDB2_OK;
+ }
+
+ $result = $db->query("DROP TABLE $sequence_name");
+ if(PEAR::isError($result)) {
+ return $db->raiseError(MDB2_ERROR, null, null,
+ 'createSequence: could not drop inconsistent sequence table ('.
+ $result->getMessage().' ('.$result->getUserInfo(). '))');
+ }
+
+ return $db->raiseError(MDB2_ERROR, null, null,
+ 'createSequence: could not create sequence table ('.
+ $res->getMessage(). ' ('.$res->getUserInfo(). '))');
+ }
+
+ // }}}
+ // {{{ createIndex()
+ /**
+ * Adds an index to a table.
+ *
+ * @param string $table The name of the table
+ * @param string $name The name of the field
+ * @param array $definition The definition of the new field.
+ */
+ function createIndex($table, $name, $definition)
+ {
+ }
+
+ // }}}
+ // {{{ 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 =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $sequence_name = $db->getSequenceName($seq_name);
+ return $db->query("DROP TABLE $sequence_name");
+ }
+
+ // }}}
+ // {{{ listSequences()
+
+ /**
+ * list all sequences in the current database
+ *
+ * @return mixed data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function listSequences()
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $query = "SELECT name FROM sysobjects WHERE xtype = 'U'";
+ $table_names = $db->queryCol($query);
+ if (PEAR::isError($table_names)) {
+ return $table_names;
+ }
+ $sequences = array();
+ for ($i = 0, $j = count($table_names); $i <$j; ++$i) {
+ if ($this->_isSequenceName($db, $table_names[$i])) {
+ $sequences[] = $table_names[$i];
+ }
+ }
+ return $sequences;
+ }
+ // }}}
+}
+// }}}
+?>