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-<?php
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2008 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: Paul Cooper <pgc@ucecom.com> |
-// +----------------------------------------------------------------------+
-//
-// $Id: pgsql.php 295587 2010-02-28 17:16:38Z quipo $
-
-require_once 'MDB2/Driver/Manager/Common.php';
-
-/**
- * MDB2 MySQL driver for the management modules
- *
- * @package MDB2
- * @category Database
- * @author Paul Cooper <pgc@ucecom.com>
- */
-class MDB2_Driver_Manager_pgsql extends MDB2_Driver_Manager_Common
-{
- // {{{ createDatabase()
-
- /**
- * create a new database
- *
- * @param string $name name of the database that should be created
- * @param array $options array with charset info
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function createDatabase($name, $options = array())
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $name = $db->quoteIdentifier($name, true);
- $query = 'CREATE DATABASE ' . $name;
- if (!empty($options['charset'])) {
- $query .= ' WITH ENCODING ' . $db->quote($options['charset'], 'text');
- }
- return $db->standaloneQuery($query, null, true);
- }
-
- // }}}
- // {{{ alterDatabase()
-
- /**
- * alter an existing database
- *
- * @param string $name name of the database that is intended to be changed
- * @param array $options array with name, owner info
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function alterDatabase($name, $options = array())
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $query = 'ALTER DATABASE '. $db->quoteIdentifier($name, true);
- if (!empty($options['name'])) {
- $query .= ' RENAME TO ' . $options['name'];
- }
- if (!empty($options['owner'])) {
- $query .= ' OWNER TO ' . $options['owner'];
- }
- return $db->standaloneQuery($query, null, true);
- }
-
- // }}}
- // {{{ 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;
- }
-
- $name = $db->quoteIdentifier($name, true);
- $query = "DROP DATABASE $name";
- return $db->standaloneQuery($query, null, true);
- }
-
- // }}}
- // {{{ _getAdvancedFKOptions()
-
- /**
- * Return the FOREIGN KEY query section dealing with non-standard options
- * as MATCH, INITIALLY DEFERRED, ON UPDATE, ...
- *
- * @param array $definition
- * @return string
- * @access protected
- */
- function _getAdvancedFKOptions($definition)
- {
- $query = '';
- if (!empty($definition['match'])) {
- $query .= ' MATCH '.$definition['match'];
- }
- if (!empty($definition['onupdate'])) {
- $query .= ' ON UPDATE '.$definition['onupdate'];
- }
- if (!empty($definition['ondelete'])) {
- $query .= ' ON DELETE '.$definition['ondelete'];
- }
- if (!empty($definition['deferrable'])) {
- $query .= ' DEFERRABLE';
- } else {
- $query .= ' NOT DEFERRABLE';
- }
- if (!empty($definition['initiallydeferred'])) {
- $query .= ' INITIALLY DEFERRED';
- } else {
- $query .= ' INITIALLY IMMEDIATE';
- }
- return $query;
- }
-
- // }}}
- // {{{ truncateTable()
-
- /**
- * Truncate an existing table (if the TRUNCATE TABLE syntax is not supported,
- * it falls back to a DELETE FROM TABLE query)
- *
- * @param string $name name of the table that should be truncated
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function truncateTable($name)
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $name = $db->quoteIdentifier($name, true);
- return $db->exec("TRUNCATE TABLE $name");
- }
-
- // }}}
- // {{{ vacuum()
-
- /**
- * Optimize (vacuum) all the tables in the db (or only the specified table)
- * and optionally run ANALYZE.
- *
- * @param string $table table name (all the tables if empty)
- * @param array $options an array with driver-specific options:
- * - timeout [int] (in seconds) [mssql-only]
- * - analyze [boolean] [pgsql and mysql]
- * - full [boolean] [pgsql-only]
- * - freeze [boolean] [pgsql-only]
- *
- * @return mixed MDB2_OK success, a MDB2 error on failure
- * @access public
- */
- function vacuum($table = null, $options = array())
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
- $query = 'VACUUM';
-
- if (!empty($options['full'])) {
- $query .= ' FULL';
- }
- if (!empty($options['freeze'])) {
- $query .= ' FREEZE';
- }
- if (!empty($options['analyze'])) {
- $query .= ' ANALYZE';
- }
-
- if (!empty($table)) {
- $query .= ' '.$db->quoteIdentifier($table, true);
- }
- return $db->exec($query);
- }
-
- // }}}
- // {{{ 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 MDB2 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 MDB2 parser.
- *
- * Example
- * array(
- * 'name' => 'userlist',
- * 'add' => array(
- * 'quota' => array(
- * 'type' => 'integer',
- * 'unsigned' => 1
- * )
- * ),
- * 'remove' => array(
- * 'file_limit' => array(),
- * 'time_limit' => array()
- * ),
- * 'change' => array(
- * 'name' => array(
- * 'length' => '20',
- * 'definition' => array(
- * 'type' => 'text',
- * 'length' => 20,
- * ),
- * )
- * ),
- * 'rename' => array(
- * 'sex' => array(
- * 'name' => 'gender',
- * 'definition' => array(
- * 'type' => 'text',
- * 'length' => 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 = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- foreach ($changes as $change_name => $change) {
- switch ($change_name) {
- case 'add':
- case 'remove':
- case 'change':
- case 'name':
- case 'rename':
- break;
- default:
- return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
- 'change type "'.$change_name.'\" not yet supported', __FUNCTION__);
- }
- }
-
- if ($check) {
- return MDB2_OK;
- }
-
- $name = $db->quoteIdentifier($name, true);
-
- if (!empty($changes['remove']) && is_array($changes['remove'])) {
- foreach ($changes['remove'] as $field_name => $field) {
- $field_name = $db->quoteIdentifier($field_name, true);
- $query = 'DROP ' . $field_name;
- $result = $db->exec("ALTER TABLE $name $query");
- if (PEAR::isError($result)) {
- return $result;
- }
- }
- }
-
- if (!empty($changes['rename']) && is_array($changes['rename'])) {
- foreach ($changes['rename'] as $field_name => $field) {
- $field_name = $db->quoteIdentifier($field_name, true);
- $result = $db->exec("ALTER TABLE $name RENAME COLUMN $field_name TO ".$db->quoteIdentifier($field['name'], true));
- if (PEAR::isError($result)) {
- return $result;
- }
- }
- }
-
- if (!empty($changes['add']) && is_array($changes['add'])) {
- foreach ($changes['add'] as $field_name => $field) {
- $query = 'ADD ' . $db->getDeclaration($field['type'], $field_name, $field);
- $result = $db->exec("ALTER TABLE $name $query");
- if (PEAR::isError($result)) {
- return $result;
- }
- }
- }
-
- if (!empty($changes['change']) && is_array($changes['change'])) {
- foreach ($changes['change'] as $field_name => $field) {
- $field_name = $db->quoteIdentifier($field_name, true);
- if (!empty($field['definition']['type'])) {
- $server_info = $db->getServerVersion();
- if (PEAR::isError($server_info)) {
- return $server_info;
- }
- if (is_array($server_info) && $server_info['major'] < 8) {
- return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
- 'changing column type for "'.$change_name.'\" requires PostgreSQL 8.0 or above', __FUNCTION__);
- }
- $db->loadModule('Datatype', null, true);
- $type = $db->datatype->getTypeDeclaration($field['definition']);
- $query = "ALTER $field_name TYPE $type USING CAST($field_name AS $type)";
- $result = $db->exec("ALTER TABLE $name $query");
- if (PEAR::isError($result)) {
- return $result;
- }
- }
- if (array_key_exists('default', $field['definition'])) {
- $query = "ALTER $field_name SET DEFAULT ".$db->quote($field['definition']['default'], $field['definition']['type']);
- $result = $db->exec("ALTER TABLE $name $query");
- if (PEAR::isError($result)) {
- return $result;
- }
- }
- if (array_key_exists('notnull', $field['definition'])) {
- $query = "ALTER $field_name ".($field['definition']['notnull'] ? 'SET' : 'DROP').' NOT NULL';
- $result = $db->exec("ALTER TABLE $name $query");
- if (PEAR::isError($result)) {
- return $result;
- }
- }
- }
- }
-
- if (!empty($changes['name'])) {
- $change_name = $db->quoteIdentifier($changes['name'], true);
- $result = $db->exec("ALTER TABLE $name RENAME TO ".$change_name);
- if (PEAR::isError($result)) {
- return $result;
- }
- }
-
- return MDB2_OK;
- }
-
- // }}}
- // {{{ listDatabases()
-
- /**
- * list all databases
- *
- * @return mixed array of database names on success, a MDB2 error on failure
- * @access public
- */
- function listDatabases()
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $query = 'SELECT datname FROM pg_database';
- $result2 = $db->standaloneQuery($query, array('text'), false);
- if (!MDB2::isResultCommon($result2)) {
- return $result2;
- }
-
- $result = $result2->fetchCol();
- $result2->free();
- if (PEAR::isError($result)) {
- return $result;
- }
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
- }
- return $result;
- }
-
- // }}}
- // {{{ listUsers()
-
- /**
- * list all users
- *
- * @return mixed array of user names on success, a MDB2 error on failure
- * @access public
- */
- function listUsers()
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $query = 'SELECT usename FROM pg_user';
- $result2 = $db->standaloneQuery($query, array('text'), false);
- if (!MDB2::isResultCommon($result2)) {
- return $result2;
- }
-
- $result = $result2->fetchCol();
- $result2->free();
- return $result;
- }
-
- // }}}
- // {{{ listViews()
-
- /**
- * list all views in the current database
- *
- * @return mixed array of view names on success, a MDB2 error on failure
- * @access public
- */
- function listViews()
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $query = "SELECT viewname
- FROM pg_views
- WHERE schemaname NOT IN ('pg_catalog', 'information_schema')
- AND viewname !~ '^pg_'";
- $result = $db->queryCol($query);
- if (PEAR::isError($result)) {
- return $result;
- }
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
- }
- return $result;
- }
-
- // }}}
- // {{{ listTableViews()
-
- /**
- * list the views in the database that reference a given table
- *
- * @param string table for which all referenced views should be found
- * @return mixed array of view names on success, a MDB2 error on failure
- * @access public
- */
- function listTableViews($table)
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $query = 'SELECT viewname FROM pg_views NATURAL JOIN pg_tables';
- $query.= ' WHERE tablename ='.$db->quote($table, 'text');
- $result = $db->queryCol($query);
- if (PEAR::isError($result)) {
- return $result;
- }
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
- }
- return $result;
- }
-
- // }}}
- // {{{ listFunctions()
-
- /**
- * list all functions in the current database
- *
- * @return mixed array of function names on success, a MDB2 error on failure
- * @access public
- */
- function listFunctions()
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $query = "
- SELECT
- proname
- FROM
- pg_proc pr,
- pg_type tp
- WHERE
- tp.oid = pr.prorettype
- AND pr.proisagg = FALSE
- AND tp.typname <> 'trigger'
- AND pr.pronamespace IN
- (SELECT oid FROM pg_namespace WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema')";
- $result = $db->queryCol($query);
- if (PEAR::isError($result)) {
- return $result;
- }
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
- }
- return $result;
- }
-
- // }}}
- // {{{ listTableTriggers()
-
- /**
- * list all triggers in the database that reference a given table
- *
- * @param string table for which all referenced triggers should be found
- * @return mixed array of trigger names on success, a MDB2 error on failure
- * @access public
- */
- function listTableTriggers($table = null)
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $query = 'SELECT trg.tgname AS trigger_name
- FROM pg_trigger trg,
- pg_class tbl
- WHERE trg.tgrelid = tbl.oid';
- if (null !== $table) {
- $table = $db->quote(strtoupper($table), 'text');
- $query .= " AND UPPER(tbl.relname) = $table";
- }
- $result = $db->queryCol($query);
- if (PEAR::isError($result)) {
- return $result;
- }
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
- }
- return $result;
- }
-
- // }}}
- // {{{ listTables()
-
- /**
- * list all tables in the current database
- *
- * @return mixed array of table names on success, a MDB2 error on failure
- * @access public
- */
- function listTables()
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- // gratuitously stolen from PEAR DB _getSpecialQuery in pgsql.php
- $query = 'SELECT c.relname AS "Name"'
- . ' FROM pg_class c, pg_user u'
- . ' WHERE c.relowner = u.usesysid'
- . " AND c.relkind = 'r'"
- . ' AND NOT EXISTS'
- . ' (SELECT 1 FROM pg_views'
- . ' WHERE viewname = c.relname)'
- . " AND c.relname !~ '^(pg_|sql_)'"
- . ' UNION'
- . ' SELECT c.relname AS "Name"'
- . ' FROM pg_class c'
- . " WHERE c.relkind = 'r'"
- . ' AND NOT EXISTS'
- . ' (SELECT 1 FROM pg_views'
- . ' WHERE viewname = c.relname)'
- . ' AND NOT EXISTS'
- . ' (SELECT 1 FROM pg_user'
- . ' WHERE usesysid = c.relowner)'
- . " AND c.relname !~ '^pg_'";
- $result = $db->queryCol($query);
- if (PEAR::isError($result)) {
- return $result;
- }
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
- }
- return $result;
- }
-
- // }}}
- // {{{ listTableFields()
-
- /**
- * list all fields in a table in the current database
- *
- * @param string $table name of table that should be used in method
- * @return mixed array of field names on success, a MDB2 error on failure
- * @access public
- */
- function listTableFields($table)
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- list($schema, $table) = $this->splitTableSchema($table);
-
- $table = $db->quoteIdentifier($table, true);
- if (!empty($schema)) {
- $table = $db->quoteIdentifier($schema, true) . '.' .$table;
- }
- $db->setLimit(1);
- $result2 = $db->query("SELECT * FROM $table");
- if (PEAR::isError($result2)) {
- return $result2;
- }
- $result = $result2->getColumnNames();
- $result2->free();
- if (PEAR::isError($result)) {
- return $result;
- }
- return array_flip($result);
- }
-
- // }}}
- // {{{ listTableIndexes()
-
- /**
- * list all indexes in a table
- *
- * @param string $table name of table that should be used in method
- * @return mixed array of index names on success, a MDB2 error on failure
- * @access public
- */
- function listTableIndexes($table)
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- list($schema, $table) = $this->splitTableSchema($table);
-
- $table = $db->quote($table, 'text');
- $subquery = "SELECT indexrelid
- FROM pg_index
- LEFT JOIN pg_class ON pg_class.oid = pg_index.indrelid
- LEFT JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid
- WHERE pg_class.relname = $table
- AND indisunique != 't'
- AND indisprimary != 't'";
- if (!empty($schema)) {
- $subquery .= ' AND pg_namespace.nspname = '.$db->quote($schema, 'text');
- }
- $query = "SELECT relname FROM pg_class WHERE oid IN ($subquery)";
- $indexes = $db->queryCol($query, 'text');
- if (PEAR::isError($indexes)) {
- return $indexes;
- }
-
- $result = array();
- foreach ($indexes as $index) {
- $index = $this->_fixIndexName($index);
- if (!empty($index)) {
- $result[$index] = true;
- }
- }
-
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $result = array_change_key_case($result, $db->options['field_case']);
- }
- return array_keys($result);
- }
-
- // }}}
- // {{{ dropConstraint()
-
- /**
- * drop existing constraint
- *
- * @param string $table name of table that should be used in method
- * @param string $name name of the constraint to be dropped
- * @param string $primary hint if the constraint is primary
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function dropConstraint($table, $name, $primary = false)
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- // is it an UNIQUE index?
- $query = 'SELECT relname
- FROM pg_class
- WHERE oid IN (
- SELECT indexrelid
- FROM pg_index, pg_class
- WHERE pg_class.relname = '.$db->quote($table, 'text').'
- AND pg_class.oid = pg_index.indrelid
- AND indisunique = \'t\')
- EXCEPT
- SELECT conname
- FROM pg_constraint, pg_class
- WHERE pg_constraint.conrelid = pg_class.oid
- AND relname = '. $db->quote($table, 'text');
- $unique = $db->queryCol($query, 'text');
- if (PEAR::isError($unique) || empty($unique)) {
- // not an UNIQUE index, maybe a CONSTRAINT
- return parent::dropConstraint($table, $name, $primary);
- }
-
- if (in_array($name, $unique)) {
- return $db->exec('DROP INDEX '.$db->quoteIdentifier($name, true));
- }
- $idxname = $db->getIndexName($name);
- if (in_array($idxname, $unique)) {
- return $db->exec('DROP INDEX '.$db->quoteIdentifier($idxname, true));
- }
- return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- $name . ' is not an existing constraint for table ' . $table, __FUNCTION__);
- }
-
- // }}}
- // {{{ listTableConstraints()
-
- /**
- * list all constraints in a table
- *
- * @param string $table name of table that should be used in method
- * @return mixed array of constraint names on success, a MDB2 error on failure
- * @access public
- */
- function listTableConstraints($table)
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- list($schema, $table) = $this->splitTableSchema($table);
-
- $table = $db->quote($table, 'text');
- $query = 'SELECT conname
- FROM pg_constraint
- LEFT JOIN pg_class ON pg_constraint.conrelid = pg_class.oid
- LEFT JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid
- WHERE relname = ' .$table;
- if (!empty($schema)) {
- $query .= ' AND pg_namespace.nspname = ' . $db->quote($schema, 'text');
- }
- $query .= '
- UNION DISTINCT
- SELECT relname
- FROM pg_class
- WHERE oid IN (
- SELECT indexrelid
- FROM pg_index
- LEFT JOIN pg_class ON pg_class.oid = pg_index.indrelid
- LEFT JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid
- WHERE pg_class.relname = '.$table.'
- AND indisunique = \'t\'';
- if (!empty($schema)) {
- $query .= ' AND pg_namespace.nspname = ' . $db->quote($schema, 'text');
- }
- $query .= ')';
- $constraints = $db->queryCol($query);
- if (PEAR::isError($constraints)) {
- return $constraints;
- }
-
- $result = array();
- foreach ($constraints as $constraint) {
- $constraint = $this->_fixIndexName($constraint);
- if (!empty($constraint)) {
- $result[$constraint] = true;
- }
- }
-
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
- && $db->options['field_case'] == CASE_LOWER
- ) {
- $result = array_change_key_case($result, $db->options['field_case']);
- }
- return array_keys($result);
- }
-
- // }}}
- // {{{ 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 = $db->quoteIdentifier($db->getSequenceName($seq_name), true);
- return $db->exec("CREATE SEQUENCE $sequence_name INCREMENT 1".
- ($start < 1 ? " MINVALUE $start" : '')." START $start");
- }
-
- // }}}
- // {{{ 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 = $db->quoteIdentifier($db->getSequenceName($seq_name), true);
- return $db->exec("DROP SEQUENCE $sequence_name");
- }
-
- // }}}
- // {{{ listSequences()
-
- /**
- * list all sequences in the current database
- *
- * @return mixed array of sequence names on success, a MDB2 error on failure
- * @access public
- */
- function listSequences()
- {
- $db = $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $query = "SELECT relname FROM pg_class WHERE relkind = 'S' AND relnamespace IN";
- $query.= "(SELECT oid FROM pg_namespace WHERE nspname NOT LIKE 'pg_%' AND nspname != 'information_schema')";
- $table_names = $db->queryCol($query);
- if (PEAR::isError($table_names)) {
- return $table_names;
- }
- $result = array();
- foreach ($table_names as $table_name) {
- $result[] = $this->_fixSequenceName($table_name);
- }
- if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
- $result = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $result);
- }
- return $result;
- }
-}
-?> \ No newline at end of file
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