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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: Lorenzo Alberton <l.alberton@quipo.it> |
-// +----------------------------------------------------------------------+
-//
-// $Id$
-
-require_once 'MDB2/Driver/Manager/Common.php';
-
-/**
- * MDB2 FireBird/InterBase driver for the management modules
- *
- * @package MDB2
- * @category Database
- * @author Lorenzo Alberton <l.alberton@quipo.it>
- */
-class MDB2_Driver_Manager_ibase 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;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, 'Create database',
- 'createDatabase: PHP Interbase API does not support direct queries. You have to '.
- 'create the db manually by using isql command or a similar program');
- }
-
- // }}}
- // {{{ 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->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, 'Drop database',
- 'dropDatabase: PHP Interbase API does not support direct queries. You have '.
- 'to drop the db manually by using isql command or a similar program');
- }
-
- // }}}
- // {{{ _makeAutoincrement()
-
- /**
- * add an autoincrement sequence + trigger
- *
- * @param string $name name of the PK field
- * @param string $table name of the table
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access private
- */
- function _makeAutoincrement($name, $table, $start = 1)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $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 . ' FOR ' . $table . '
- ACTIVE BEFORE INSERT POSITION 0
- AS
- BEGIN
- IF (NEW.' . $name . ' IS NULL) THEN
- NEW.' . $name . ' = GEN_ID('.strtoupper($sequence_name).', 1);
- END';
-
- return $db->query($trigger_sql);
- }
-
- // }}}
- // {{{ _dropAutoincrement()
-
- /**
- * drop an existing autoincrement PK / trigger
- *
- * @param string $name name of the PK field
- * @param string $table name of the table
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access private
- */
- function _dropAutoincrement($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');
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ createTable()
-
- /**
- * create a new table
- *
- * @param string $name Name of the database that should be created
- * @param array $fields Associative array that contains the definition of each field of the new table
- * The indexes of the array entries are the names of the fields of the table an
- * the array entry values are associative arrays like those that are meant to be
- * passed with the field definitions to get[Type]Declaration() functions.
- *
- * Example
- * array(
- *
- * 'id' => array(
- * 'type' => 'integer',
- * 'unsigned' => 1,
- * 'notnull' => 1,
- * 'default' => 0,
- * ),
- * 'name' => array(
- * 'type' => 'text',
- * 'length' => 12,
- * ),
- * 'description' => array(
- * 'type' => 'text',
- * 'length' => 12,
- * )
- * );
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function createTable($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);
- }
- }
- }
-
- // }}}
- // {{{ checkSupportedChanges()
-
- /**
- * check if planned changes are supported
- *
- * @param string $name name of the database that should be dropped
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function checkSupportedChanges(&$changes)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- foreach ($changes as $change_name => $change) {
- switch ($change_name) {
- case 'notnull':
- return $db->raiseError(MDB2_ERROR, null, null,
- 'checkSupportedChanges: it is not supported changes to field not null constraint');
- case 'default':
- return $db->raiseError(MDB2_ERROR, null, null,
- 'checkSupportedChanges: it is not supported changes to field default value');
- case 'length':
- return $db->raiseError(MDB2_ERROR, null, null,
- 'checkSupportedChanges: it is not supported changes to field default length');
- case 'unsigned':
- case 'type':
- case 'declaration':
- case 'definition':
- break;
- default:
- return $db->raiseError(MDB2_ERROR, null, null,
- 'checkSupportedChanges: it is not supported change of type' . $change_name);
- }
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ dropTable()
-
- /**
- * drop an existing table
- *
- * @param string $name name of the table that should be dropped
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function dropTable($name)
- {
- //remove triggers associated with the table
- $name = strtoupper($name);
- $triggers = $db->queryCol("SELECT RDB\$TRIGGER_NAME FROM RDB\$TRIGGERS WHERE RDB\$RELATION_NAME='$name'");
- if (PEAR::isError($triggers)) {
- return $triggers;
- }
- foreach ($triggers as $trigger) {
- $result = $db->query('DROP TRIGGER ' . $trigger);
- if (PEAR::isError($result)) {
- return $result;
- }
- }
-
- return parent::dropTable($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 $check indicates whether the function should just check if the DBMS driver
- * can perform the requested table alterations if the value is true or
- * actually perform them otherwise.
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function alterTable($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 'rename':
- break;
- case 'change':
- foreach ($changes['change'] as $field) {
- if (PEAR::isError($err = $this->checkSupportedChanges($field))) {
- return $err;
- }
- }
- break;
- default:
- return $db->raiseError(MDB2_ERROR, null, null,
- 'alterTable: change type ' . $change_name . ' not yet supported');
- }
- }
- if ($check) {
- return MDB2_OK;
- }
- $query = '';
- if (array_key_exists('add', $changes)) {
- foreach ($changes['add'] as $field_name => $field) {
- $type_declaration = $db->getDeclaration($field['type'], $field_name, $field, $name);
- if (PEAR::isError($type_declaration)) {
- return $err;
- }
- if (strlen($query)) {
- $query.= ', ';
- }
- $query.= 'ADD ' . $type_declaration;
- }
- }
-
- if (array_key_exists('remove', $changes)) {
- foreach ($changes['remove'] as $field_name => $field) {
- if (strlen($query)) {
- $query.= ', ';
- }
- $query.= 'DROP ' . $field_name;
- }
- }
-
- if (array_key_exists('rename', $changes)) {
- foreach ($changes['rename'] as $field_name => $field) {
- if (strlen($query)) {
- $query.= ', ';
- }
- $query.= 'ALTER ' . $field_name . ' TO ' . $field['name'];
- }
- }
-
- if (array_key_exists('change', $changes)) {
- // missing support to change DEFAULT and NULLability
- foreach ($changes['change'] as $field_name => $field) {
- if (PEAR::isError($err = $this->checkSupportedChanges($field))) {
- return $err;
- }
- if (strlen($query)) {
- $query.= ', ';
- }
- $db->loadModule('Datatype');
- $query.= 'ALTER ' . $field_name.' TYPE ' . $db->datatype->getTypeDeclaration($field);
- }
- }
-
- if (!strlen($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 MDB2 error on failure
- * @access public
- */
- function listTables()
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
- $query = 'SELECT DISTINCT R.RDB$RELATION_NAME FROM RDB$RELATION_FIELDS R WHERE R.RDB$SYSTEM_FLAG=0';
- $tables = $db->queryCol($query);
- if (PEAR::isError($tables)) {
- return $tables;
- }
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $tables = array_flip(array_change_key_case(array_flip($tables), $db->options['field_case']));
- }
- return $tables;
- }
-
- // }}}
- // {{{ listTableFields()
-
- /**
- * list all fields in a tables in the current database
- *
- * @param string $table name of table that should be used in method
- * @return mixed data array on success, a MDB2 error on failure
- * @access public
- */
- function listTableFields($table)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
- $table = strtoupper($table);
- $query = "SELECT RDB\$FIELD_NAME FROM RDB\$RELATION_FIELDS WHERE RDB\$RELATION_NAME='$table'";
- $columns = $db->queryCol($query);
- if (PEAR::isError($columns)) {
- return $columns;
- }
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $columns = array_flip(array_change_key_case(array_flip($columns), $db->options['field_case']));
- }
- return $columns;
- }
-
- // }}}
- // {{{ listViews()
-
- /**
- * list the views in the database
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function listViews()
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->queryCol('SELECT RDB$VIEW_NAME');
- }
-
- // }}}
- // {{{ 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 $definition associative array that defines properties of the index to be created.
- * Currently, only one property named FIELDS is supported. This property
- * is also an associative with the names of the index fields as array
- * indexes. Each entry of this array is set to another type of associative
- * array that specifies properties of the index that are specific to
- * each field.
- *
- * Currently, only the sorting property is supported. It should be used
- * to define the sorting direction of the index. It may be set to either
- * ascending or descending.
- *
- * Not all DBMS support index sorting direction configuration. The DBMS
- * drivers of those that do not support it ignore this property. Use the
- * function support() to determine whether the DBMS driver can manage indexes.
-
- * Example
- * array(
- * 'fields' => array(
- * 'user_name' => array(
- * 'sorting' => 'ascending'
- * ),
- * 'last_login' => array()
- * )
- * )
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function createIndex($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';
- }
- $query_sort = '';
- foreach ($definition['fields'] as $field) {
- if (!strcmp($query_sort, '') && isset($field['sorting'])) {
- switch ($field['sorting']) {
- case 'ascending':
- $query_sort = ' ASC';
- break;
- case 'descending':
- $query_sort = ' DESC';
- break;
- }
- }
- }
- $query .= $query_sort. " INDEX $name ON $table (";
- }
- $query .= implode(', ', array_keys($definition['fields'])) . ')';
-
- return $db->query($query);
- }
-
- // }}}
- // {{{ listTableIndexes()
-
- /**
- * list all indexes in a table
- *
- * @param string $table name of table that should be used in method
- * @return mixed data array on success, a MDB2 error on failure
- * @access public
- */
- function listTableIndexes($table)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
- return $db->queryCol("SELECT RDB\$INDEX_NAME FROM RDB\$INDICES WHERE RDB\$RELATION_NAME='$table'");
- }
-
- // }}}
- // {{{ 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);
- if (PEAR::isError($result = $db->query('CREATE GENERATOR '.strtoupper($sequence_name)))) {
- return $result;
- }
- if (PEAR::isError($result = $db->query('SET GENERATOR '.strtoupper($sequence_name).' TO '.($start-1)))) {
- if (PEAR::isError($err = $db->dropSequence($seq_name))) {
- return $db->raiseError(MDB2_ERROR, null, null,
- 'createSequence: Could not setup sequence start value and then it was not possible to drop it: '.
- $err->getMessage().' - ' .$err->getUserInfo());
- }
- }
- return $result;
- }
-
- // }}}
- // {{{ 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 $db->query('DELETE FROM RDB$GENERATORS WHERE RDB$GENERATOR_NAME=\''.strtoupper($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;
- }
-
- $query = 'SELECT RDB$GENERATOR_NAME FROM RDB$GENERATORS';
- $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;
- }
- return $sequences;
- }
-}
-?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 08:20:44 +0000