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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: Lukas Smith <smith@pooteeweet.org> |
+// +----------------------------------------------------------------------+
+
+// $Id$
+
+require_once 'MDB2/Driver/Manager/Common.php';
+
+/**
+ * MDB2 oci8 driver for the management modules
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Manager_oci8 extends MDB2_Driver_Manager_Common
+{
+ // {{{ createDatabase()
+
+ /**
+ * create a new database
+ *
+ * @param object $db database object that is extended by this class
+ * @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;
+ }
+
+ $username = $db->options['database_name_prefix'].$name;
+ $password = $db->dsn['password'] ? $db->dsn['password'] : $name;
+ $tablespace = $db->options['default_tablespace']
+ ? ' DEFAULT TABLESPACE '.$db->options['default_tablespace'] : '';
+
+ $query = 'CREATE USER '.$username.' IDENTIFIED BY '.$password.$tablespace;
+ $result = $db->standaloneQuery($query);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $query = 'GRANT CREATE SESSION, CREATE TABLE, UNLIMITED TABLESPACE, CREATE SEQUENCE TO '.$username;
+ $result = $db->standaloneQuery($query);
+ if (PEAR::isError($result)) {
+ $query = 'DROP USER '.$username.' CASCADE';
+ $result2 = $db->standaloneQuery($query);
+ if (PEAR::isError($result2)) {
+ return $db->raiseError(MDB2_ERROR, null, null,
+ 'createDatabase: could not setup the database user ('.$result->getUserinfo().
+ ') and then could drop its records ('.$result2->getUserinfo().')');
+ }
+ return $result;
+ }
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ dropDatabase()
+
+ /**
+ * drop an existing database
+ *
+ * @param object $db database object that is extended by this class
+ * @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;
+ }
+
+ $username = $db->options['database_name_prefix'].$name;
+ return $db->standaloneQuery('DROP USER '.$username.' CASCADE');
+ }
+
+ function _makeAutoincrement($name, $table, $start = 1)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $index_name = $table . '_autoincrement_pk';
+ $definition = array(
+ 'primary' => true,
+ 'fields' => array($name),
+ );
+ $result = $db->manager->createIndex($table, $index_name, $definition);
+ if (PEAR::isError($result)) {
+ return $db->raiseError(MDB2_ERROR, null, null,
+ '_makeAutoincrement: primary key for autoincrement PK could not be created');
+ }
+
+ $result = $db->manager->createSequence($table, $start);
+ if (PEAR::isError($result)) {
+ return $db->raiseError(MDB2_ERROR, null, null,
+ '_makeAutoincrement: sequence for autoincrement PK could not be created');
+ }
+
+ $sequence_name = $db->getSequenceName($table);
+ $trigger_name = $table . '_autoincrement_pk';
+ $trigger_sql = "CREATE TRIGGER $trigger_name BEFORE INSERT ON $table";
+ $trigger_sql.= " FOR EACH ROW BEGIN IF (:new.$name IS NULL) THEN SELECT ";
+ $trigger_sql.= "$sequence_name.NEXTVAL INTO :new.$name FROM DUAL; END IF; END;";
+
+ return $db->query($trigger_sql);
+ }
+
+ function _dropAutoincrement($name, $table)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $result = $db->manager->dropSequence($table);
+ if (PEAR::isError($result)) {
+ return $db->raiseError(MDB2_ERROR, null, null,
+ '_dropAutoincrement: sequence for autoincrement PK could not be dropped');
+ }
+
+ $sequence_name = $db->getSequenceName($table);
+ $trigger_name = $table . '_autoincrement_pk';
+ $trigger_sql = 'DROP TRIGGER ' . $trigger_name;
+
+ return $db->query($trigger_sql);
+ }
+
+ // }}}
+ // {{{ createTable()
+
+ /**
+ * create a new table
+ *
+ * @param string $name Name of the database that should be created
+ * @param array $fields Associative array that contains the definition of each field of the new table
+ * The indexes of the array entries are the names of the fields of the table an
+ * the array entry values are associative arrays like those that are meant to be
+ * passed with the field definitions to get[Type]Declaration() functions.
+ *
+ * Example
+ * array(
+ *
+ * 'id' => array(
+ * 'type' => 'integer',
+ * 'unsigned' => 1
+ * 'notnull' => 1
+ * 'default' => 0
+ * ),
+ * 'name' => array(
+ * 'type' => 'text',
+ * 'length' => 12
+ * ),
+ * 'password' => array(
+ * 'type' => 'text',
+ * 'length' => 12
+ * )
+ * );
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ * @access public
+ */
+ function createTable($name, $fields)
+ {
+ $result = parent::createTable($name, $fields);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ foreach($fields as $field_name => $field) {
+ if (array_key_exists('autoincrement', $field) && $field['autoincrement']) {
+ return $this->_makeAutoincrement($field_name, $name);
+ }
+ }
+ }
+
+ // }}}
+ // {{{ alterTable()
+
+ /**
+ * alter an existing table
+ *
+ * @param object $db database object that is extended by this class
+ * @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':
+ case 'remove':
+ case 'change':
+ case 'name':
+ break;
+ case 'rename':
+ default:
+ return $db->raiseError(MDB2_ERROR, null, null,
+ 'alterTable: change type "'.$change_name.'" not yet supported');
+ }
+ }
+
+ if ($check) {
+ return MDB2_OK;
+ }
+
+ if (array_key_exists('remove', $changes)) {
+ $query = ' DROP (';
+ $fields = $changes['remove'];
+ $query.= implode(', ', array_keys($fields));
+ $query.= ')';
+ if (PEAR::isError($result = $db->query("ALTER TABLE $name $query"))) {
+ return $result;
+ }
+ $query = '';
+ }
+
+ $query = (array_key_exists('name', $changes) ? 'RENAME TO '.$changes['name'] : '');
+
+ if (array_key_exists('add', $changes)) {
+ foreach ($changes['add'] as $field_name => $field) {
+ $type_declaration = $db->getDeclaration($field['type'], $field_name, $field);
+ if (PEAR::isError($type_declaration)) {
+ return $err;
+ }
+ $query.= ' ADD (' . $type_declaration . ')';
+ }
+ }
+
+ if (array_key_exists('change', $changes)) {
+ foreach ($changes['change'] as $field_name => $field) {
+ $query.= "MODIFY ($field_name " . $db->getDeclaration($field['type'], $field_name, $field).')';
+ }
+ }
+
+ if (!$query) {
+ return MDB2_OK;
+ }
+
+ return $db->query("ALTER TABLE $name $query");
+ }
+
+ // }}}
+ // {{{ listDatabases()
+
+ /**
+ * list all databases
+ *
+ * @return mixed data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function listDatabases()
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ if ($db->options['database_name_prefix']) {
+ $query = 'SELECT SUBSTR(username, '
+ .(strlen($db->options['database_name_prefix'])+1)
+ .") FROM sys.dba_users WHERE username LIKE '"
+ .$db->options['database_name_prefix']."%'";
+ } else {
+ $query = 'SELECT username FROM sys.dba_users';
+ }
+ $result = $db->standaloneQuery($query);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $databases = $result->fetchCol();
+ if (PEAR::isError($databases)) {
+ return $databases;
+ }
+ // is it legit to force this to lowercase?
+ $databases = array_keys(array_change_key_case(array_flip($databases), $db->options['field_case']));
+ $result->free();
+ return $databases;
+ }
+
+ // }}}
+ // {{{ listUsers()
+
+ /**
+ * list all users in the current database
+ *
+ * @return mixed data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function listUsers()
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $query = 'SELECT username FROM sys.all_users';
+ $users = $db->queryCol($query);
+ if (PEAR::isError($users)) {
+ return $users;
+ }
+ if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
+ && $db->options['field_case'] == CASE_LOWER
+ ) {
+ $users = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $users);
+ }
+ return $users;
+ }
+ // }}}
+ // {{{ listViews()
+
+ /**
+ * list all views in the current database
+ *
+ * @return mixed data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function listViews()
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $query = 'SELECT view_name FROM sys.user_views';
+ $views = $db->queryCol($query);
+ if (PEAR::isError($views)) {
+ return $views;
+ }
+ if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
+ && $db->options['field_case'] == CASE_LOWER
+ ) {
+ $views = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $views);
+ }
+ return $views;
+ }
+
+ // }}}
+ // {{{ listFunctions()
+
+ /**
+ * list all functions in the current database
+ *
+ * @return mixed data array on success, a MDB2 error on failure
+ * @access public
+ */
+ function listFunctions()
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+
+ $query = "SELECT name FROM sys.user_source WHERE line = 1 AND type = 'FUNCTION'";
+ $functions = $db->queryCol($query);
+ if (PEAR::isError($functions)) {
+ return $functions;
+ }
+ if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
+ && $db->options['field_case'] == CASE_LOWER
+ ) {
+ $functions = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $functions);
+ }
+ return $functions;
+ }
+
+ // }}}
+ // {{{ 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 = 'SELECT table_name FROM sys.user_tables';
+ return $db->queryCol($query);
+ }
+
+ // }}}
+ // {{{ 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;
+ }
+
+ $table = strtoupper($table);
+ $query = "SELECT column_name FROM user_tab_columns WHERE table_name='$table' ORDER BY column_id";
+ $fields = $db->queryCol($query);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
+ && $db->options['field_case'] == CASE_LOWER
+ ) {
+ $fields = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $fields);
+ }
+ return $fields;
+ }
+ // }}}
+ // {{{ createIndex()
+
+ /**
+ * get the stucture of a field into an array
+ *
+ * @param string $table name of the table on which the index is to be created
+ * @param string $name name of the index to be created
+ * @param array $definition associative array that defines properties of the index to be created.
+ * Currently, only one property named FIELDS is supported. This property
+ * is also an associative with the names of the index fields as array
+ * indexes. Each entry of this array is set to another type of associative
+ * array that specifies properties of the index that are specific to
+ * each field.
+ *
+ * Currently, only the sorting property is supported. It should be used
+ * to define the sorting direction of the index. It may be set to either
+ * ascending or descending.
+ *
+ * Not all DBMS support index sorting direction configuration. The DBMS
+ * drivers of those that do not support it ignore this property. Use the
+ * function supports() to determine whether the DBMS driver can manage indexes.
+ *
+ * Example
+ * array(
+ * 'fields' => array(
+ * 'user_name' => array(
+ * 'sorting' => 'ascending'
+ * ),
+ * 'last_login' => array()
+ * )
+ * )
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ * @access public
+ */
+ function createIndex($table, $name, $definition)
+ {
+ $db =& $this->getDBInstance();
+ if (PEAR::isError($db)) {
+ return $db;
+ }
+ if (array_key_exists('primary', $definition) && $definition['primary']) {
+ $query = "ALTER TABLE $table ADD CONSTRAINT $name PRIMARY KEY (";
+ } else {
+ $query = 'CREATE';
+ if (array_key_exists('unique', $definition) && $definition['unique']) {
+ $query.= ' UNIQUE';
+ }
+ $query .= " INDEX $name ON $table (";
+ }
+ $query .= implode(', ', array_keys($definition['fields'])) . ')';
+
+ return $db->query($query);
+ }
+
+ // }}}
+ // {{{ createSequence()
+
+ /**
+ * create sequence
+ *
+ * @param object $db database object that is extended by this class
+ * @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);
+ return $db->query("CREATE SEQUENCE $sequence_name START WITH $start INCREMENT BY 1".
+ ($start < 1 ? " MINVALUE $start" : ''));
+ }
+
+ // }}}
+ // {{{ dropSequence()
+
+ /**
+ * drop existing sequence
+ *
+ * @param object $db database object that is extended by this class
+ * @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 SEQUENCE $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 sequence_name FROM sys.user_sequences";
+ $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 ($sqn = $this->_isSequenceName($table_names[$i]))
+ $sequences[] = $sqn;
+ }
+ if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
+ && $db->options['field_case'] == CASE_LOWER
+ ) {
+ $sequences = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $sequences);
+ }
+ return $sequences;
+ }}
+?> \ No newline at end of file
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