diff options
Diffstat (limited to 'program/lib/MDB2/Driver/Manager/Common.php')
-rw-r--r-- | program/lib/MDB2/Driver/Manager/Common.php | 2022 |
1 files changed, 1013 insertions, 1009 deletions
diff --git a/program/lib/MDB2/Driver/Manager/Common.php b/program/lib/MDB2/Driver/Manager/Common.php index 672f577ee..f7f07d9ec 100644 --- a/program/lib/MDB2/Driver/Manager/Common.php +++ b/program/lib/MDB2/Driver/Manager/Common.php @@ -1,1010 +1,1014 @@ -<?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. |
-// +----------------------------------------------------------------------+
-// | Authors: Lukas Smith <smith@pooteeweet.org> |
-// | Lorenzo Alberton <l.alberton@quipo.it> |
-// +----------------------------------------------------------------------+
-//
-// $Id: Common.php,v 1.71 2008/02/12 23:12:27 quipo Exp $
-//
-
-/**
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- * @author Lorenzo Alberton <l.alberton@quipo.it>
- */
-
-/**
- * Base class for the management modules that is extended by each MDB2 driver
- *
- * To load this module in the MDB2 object:
- * $mdb->loadModule('Manager');
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_Manager_Common extends MDB2_Module_Common
-{
- // {{{ splitTableSchema()
-
- /**
- * Split the "[owner|schema].table" notation into an array
- * @access private
- */
- function splitTableSchema($table)
- {
- $ret = array();
- if (strpos($table, '.') !== false) {
- return explode('.', $table);
- }
- return array(null, $table);
- }
-
- // }}}
- // {{{ getFieldDeclarationList()
-
- /**
- * Get declaration of a number of field in bulk
- *
- * @param array $fields a multidimensional associative array.
- * The first dimension determines the field name, while the second
- * dimension is keyed with the name of the properties
- * of the field being declared as array indexes. Currently, the types
- * of supported field properties are as follows:
- *
- * default
- * Boolean value to be used as default for this field.
- *
- * notnull
- * Boolean flag that indicates whether this field is constrained
- * to not be set to null.
- *
- * @return mixed string on success, a MDB2 error on failure
- * @access public
- */
- function getFieldDeclarationList($fields)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- if (!is_array($fields) || empty($fields)) {
- return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'missing any fields', __FUNCTION__);
- }
- foreach ($fields as $field_name => $field) {
- $query = $db->getDeclaration($field['type'], $field_name, $field);
- if (PEAR::isError($query)) {
- return $query;
- }
- $query_fields[] = $query;
- }
- return implode(', ', $query_fields);
- }
-
- // }}}
- // {{{ _fixSequenceName()
-
- /**
- * Removes any formatting in an sequence name using the 'seqname_format' option
- *
- * @param string $sqn string that containts name of a potential sequence
- * @param bool $check if only formatted sequences should be returned
- * @return string name of the sequence with possible formatting removed
- * @access protected
- */
- function _fixSequenceName($sqn, $check = false)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $seq_pattern = '/^'.preg_replace('/%s/', '([a-z0-9_]+)', $db->options['seqname_format']).'$/i';
- $seq_name = preg_replace($seq_pattern, '\\1', $sqn);
- if ($seq_name && !strcasecmp($sqn, $db->getSequenceName($seq_name))) {
- return $seq_name;
- }
- if ($check) {
- return false;
- }
- return $sqn;
- }
-
- // }}}
- // {{{ _fixIndexName()
-
- /**
- * Removes any formatting in an index name using the 'idxname_format' option
- *
- * @param string $idx string that containts name of anl index
- * @return string name of the index with eventual formatting removed
- * @access protected
- */
- function _fixIndexName($idx)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $idx_pattern = '/^'.preg_replace('/%s/', '([a-z0-9_]+)', $db->options['idxname_format']).'$/i';
- $idx_name = preg_replace($idx_pattern, '\\1', $idx);
- if ($idx_name && !strcasecmp($idx, $db->getIndexName($idx_name))) {
- return $idx_name;
- }
- return $idx;
- }
-
- // }}}
- // {{{ createDatabase()
-
- /**
- * create a new database
- *
- * @param string $name name of the database that should be created
- * @param array $options array with charset, collation info
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function createDatabase($database, $options = array())
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ alterDatabase()
-
- /**
- * alter an existing database
- *
- * @param string $name name of the database that should be created
- * @param array $options array with charset, collation info
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function alterDatabase($database, $options = array())
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ dropDatabase()
-
- /**
- * drop an existing database
- *
- * @param string $name name of the database that should be dropped
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function dropDatabase($database)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ _getCreateTableQuery()
-
- /**
- * Create a basic SQL query for a new table creation
- *
- * @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
- * @param array $options An associative array of table options
- *
- * @return mixed string (the SQL query) on success, a MDB2 error on failure
- * @see createTable()
- */
- function _getCreateTableQuery($name, $fields, $options = array())
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- if (!$name) {
- return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null,
- 'no valid table name specified', __FUNCTION__);
- }
- if (empty($fields)) {
- return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null,
- 'no fields specified for table "'.$name.'"', __FUNCTION__);
- }
- $query_fields = $this->getFieldDeclarationList($fields);
- if (PEAR::isError($query_fields)) {
- return $query_fields;
- }
- if (!empty($options['primary'])) {
- $query_fields.= ', PRIMARY KEY ('.implode(', ', array_keys($options['primary'])).')';
- }
-
- $name = $db->quoteIdentifier($name, true);
- $result = 'CREATE ';
- if (!empty($options['temporary'])) {
- $result .= $this->_getTemporaryTableQuery();
- }
- $result .= " TABLE $name ($query_fields)";
- return $result;
- }
-
- // }}}
- // {{{ _getTemporaryTableQuery()
-
- /**
- * A method to return the required SQL string that fits between CREATE ... TABLE
- * to create the table as a temporary table.
- *
- * Should be overridden in driver classes to return the correct string for the
- * specific database type.
- *
- * The default is to return the string "TEMPORARY" - this will result in a
- * SQL error for any database that does not support temporary tables, or that
- * requires a different SQL command from "CREATE TEMPORARY TABLE".
- *
- * @return string The string required to be placed between "CREATE" and "TABLE"
- * to generate a temporary table, if possible.
- */
- function _getTemporaryTableQuery()
- {
- return 'TEMPORARY';
- }
-
- // }}}
- // {{{ 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.
- * array(
- * 'id' => array(
- * 'type' => 'integer',
- * 'unsigned' => 1
- * 'notnull' => 1
- * 'default' => 0
- * ),
- * 'name' => array(
- * 'type' => 'text',
- * 'length' => 12
- * ),
- * 'password' => array(
- * 'type' => 'text',
- * 'length' => 12
- * )
- * );
- * @param array $options An associative array of table options:
- * array(
- * 'comment' => 'Foo',
- * 'temporary' => true|false,
- * );
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function createTable($name, $fields, $options = array())
- {
- $query = $this->_getCreateTableQuery($name, $fields, $options);
- if (PEAR::isError($query)) {
- return $query;
- }
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
- $result = $db->exec($query);
- if (PEAR::isError($result)) {
- return $result;
- }
- 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)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $name = $db->quoteIdentifier($name, true);
- return $db->exec("DROP TABLE $name");
- }
-
- // }}}
- // {{{ 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("DELETE FROM $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;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ 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;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ 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;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implementedd', __FUNCTION__);
- }
-
- // }}}
- // {{{ 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;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ listViews()
-
- /**
- * list all views in the current database
- *
- * @param string database, the current is default
- * NB: not all the drivers can get the view names from
- * a database other than the current one
- * @return mixed array of view names on success, a MDB2 error on failure
- * @access public
- */
- function listViews($database = null)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ listTableViews()
-
- /**
- * list the views in the database that reference a given table
- *
- * @param string table for which all referenced views should be found
- * @return mixed array of view names on success, a MDB2 error on failure
- * @access public
- */
- function listTableViews($table)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ listTableTriggers()
-
- /**
- * list all triggers in the database that reference a given table
- *
- * @param string table for which all referenced triggers should be found
- * @return mixed array of trigger names on success, a MDB2 error on failure
- * @access public
- */
- function listTableTriggers($table = null)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ 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;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ listTables()
-
- /**
- * list all tables in the current database
- *
- * @param string database, the current is default.
- * NB: not all the drivers can get the table names from
- * a database other than the current one
- * @return mixed array of table names on success, a MDB2 error on failure
- * @access public
- */
- function listTables($database = null)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ 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;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ 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;
- }
-
- $table = $db->quoteIdentifier($table, true);
- $name = $db->quoteIdentifier($db->getIndexName($name), true);
- $query = "CREATE INDEX $name ON $table";
- $fields = array();
- foreach (array_keys($definition['fields']) as $field) {
- $fields[] = $db->quoteIdentifier($field, true);
- }
- $query .= ' ('. implode(', ', $fields) . ')';
- return $db->exec($query);
- }
-
- // }}}
- // {{{ dropIndex()
-
- /**
- * drop existing index
- *
- * @param string $table name of table that should be used in method
- * @param string $name name of the index to be dropped
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function dropIndex($table, $name)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- $name = $db->quoteIdentifier($db->getIndexName($name), true);
- return $db->exec("DROP INDEX $name");
- }
-
- // }}}
- // {{{ 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;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ _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)
- {
- return '';
- }
-
- // }}}
- // {{{ createConstraint()
-
- /**
- * create a constraint on a table
- *
- * @param string $table name of the table on which the constraint is to be created
- * @param string $name name of the constraint to be created
- * @param array $definition associative array that defines properties of the constraint to be created.
- * The full structure of the array looks like this:
- * <pre>
- * array (
- * [primary] => 0
- * [unique] => 0
- * [foreign] => 1
- * [check] => 0
- * [fields] => array (
- * [field1name] => array() // one entry per each field covered
- * [field2name] => array() // by the index
- * [field3name] => array(
- * [sorting] => ascending
- * [position] => 3
- * )
- * )
- * [references] => array(
- * [table] => name
- * [fields] => array(
- * [field1name] => array( //one entry per each referenced field
- * [position] => 1
- * )
- * )
- * )
- * [deferrable] => 0
- * [initiallydeferred] => 0
- * [onupdate] => CASCADE|RESTRICT|SET NULL|SET DEFAULT|NO ACTION
- * [ondelete] => CASCADE|RESTRICT|SET NULL|SET DEFAULT|NO ACTION
- * [match] => SIMPLE|PARTIAL|FULL
- * );
- * </pre>
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function createConstraint($table, $name, $definition)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
- $table = $db->quoteIdentifier($table, true);
- $name = $db->quoteIdentifier($db->getIndexName($name), true);
- $query = "ALTER TABLE $table ADD CONSTRAINT $name";
- if (!empty($definition['primary'])) {
- $query.= ' PRIMARY KEY';
- } elseif (!empty($definition['unique'])) {
- $query.= ' UNIQUE';
- } elseif (!empty($definition['foreign'])) {
- $query.= ' FOREIGN KEY';
- }
- $fields = array();
- foreach (array_keys($definition['fields']) as $field) {
- $fields[] = $db->quoteIdentifier($field, true);
- }
- $query .= ' ('. implode(', ', $fields) . ')';
- if (!empty($definition['foreign'])) {
- $query.= ' REFERENCES ' . $db->quoteIdentifier($definition['references']['table'], true);
- $referenced_fields = array();
- foreach (array_keys($definition['references']['fields']) as $field) {
- $referenced_fields[] = $db->quoteIdentifier($field, true);
- }
- $query .= ' ('. implode(', ', $referenced_fields) . ')';
- $query .= $this->_getAdvancedFKOptions($definition);
- }
- return $db->exec($query);
- }
-
- // }}}
- // {{{ 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;
- }
-
- $table = $db->quoteIdentifier($table, true);
- $name = $db->quoteIdentifier($db->getIndexName($name), true);
- return $db->exec("ALTER TABLE $table DROP CONSTRAINT $name");
- }
-
- // }}}
- // {{{ 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;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ 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;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ dropSequence()
-
- /**
- * drop existing sequence
- *
- * @param string $seq_name name of the sequence to be dropped
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function dropSequence($name)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
- // {{{ listSequences()
-
- /**
- * list all sequences in the current database
- *
- * @param string database, the current is default
- * NB: not all the drivers can get the sequence names from
- * a database other than the current one
- * @return mixed array of sequence names on success, a MDB2 error on failure
- * @access public
- */
- function listSequences($database = null)
- {
- $db =& $this->getDBInstance();
- if (PEAR::isError($db)) {
- return $db;
- }
-
- return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'method not implemented', __FUNCTION__);
- }
-
- // }}}
-}
+<?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. | +// +----------------------------------------------------------------------+ +// | Authors: Lukas Smith <smith@pooteeweet.org> | +// | Lorenzo Alberton <l.alberton@quipo.it> | +// +----------------------------------------------------------------------+ +// +// $Id: Common.php 273526 2009-01-14 15:01:21Z quipo $ +// + +/** + * @package MDB2 + * @category Database + * @author Lukas Smith <smith@pooteeweet.org> + * @author Lorenzo Alberton <l.alberton@quipo.it> + */ + +/** + * Base class for the management modules that is extended by each MDB2 driver + * + * To load this module in the MDB2 object: + * $mdb->loadModule('Manager'); + * + * @package MDB2 + * @category Database + * @author Lukas Smith <smith@pooteeweet.org> + */ +class MDB2_Driver_Manager_Common extends MDB2_Module_Common +{ + // {{{ splitTableSchema() + + /** + * Split the "[owner|schema].table" notation into an array + * + * @param string $table [schema and] table name + * + * @return array array(schema, table) + * @access private + */ + function splitTableSchema($table) + { + $ret = array(); + if (strpos($table, '.') !== false) { + return explode('.', $table); + } + return array(null, $table); + } + + // }}} + // {{{ getFieldDeclarationList() + + /** + * Get declaration of a number of field in bulk + * + * @param array $fields a multidimensional associative array. + * The first dimension determines the field name, while the second + * dimension is keyed with the name of the properties + * of the field being declared as array indexes. Currently, the types + * of supported field properties are as follows: + * + * default + * Boolean value to be used as default for this field. + * + * notnull + * Boolean flag that indicates whether this field is constrained + * to not be set to null. + * + * @return mixed string on success, a MDB2 error on failure + * @access public + */ + function getFieldDeclarationList($fields) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + if (!is_array($fields) || empty($fields)) { + return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null, + 'missing any fields', __FUNCTION__); + } + foreach ($fields as $field_name => $field) { + $query = $db->getDeclaration($field['type'], $field_name, $field); + if (PEAR::isError($query)) { + return $query; + } + $query_fields[] = $query; + } + return implode(', ', $query_fields); + } + + // }}} + // {{{ _fixSequenceName() + + /** + * Removes any formatting in an sequence name using the 'seqname_format' option + * + * @param string $sqn string that containts name of a potential sequence + * @param bool $check if only formatted sequences should be returned + * @return string name of the sequence with possible formatting removed + * @access protected + */ + function _fixSequenceName($sqn, $check = false) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + $seq_pattern = '/^'.preg_replace('/%s/', '([a-z0-9_]+)', $db->options['seqname_format']).'$/i'; + $seq_name = preg_replace($seq_pattern, '\\1', $sqn); + if ($seq_name && !strcasecmp($sqn, $db->getSequenceName($seq_name))) { + return $seq_name; + } + if ($check) { + return false; + } + return $sqn; + } + + // }}} + // {{{ _fixIndexName() + + /** + * Removes any formatting in an index name using the 'idxname_format' option + * + * @param string $idx string that containts name of anl index + * @return string name of the index with eventual formatting removed + * @access protected + */ + function _fixIndexName($idx) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + $idx_pattern = '/^'.preg_replace('/%s/', '([a-z0-9_]+)', $db->options['idxname_format']).'$/i'; + $idx_name = preg_replace($idx_pattern, '\\1', $idx); + if ($idx_name && !strcasecmp($idx, $db->getIndexName($idx_name))) { + return $idx_name; + } + return $idx; + } + + // }}} + // {{{ createDatabase() + + /** + * create a new database + * + * @param string $name name of the database that should be created + * @param array $options array with charset, collation info + * + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function createDatabase($database, $options = array()) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ alterDatabase() + + /** + * alter an existing database + * + * @param string $name name of the database that should be created + * @param array $options array with charset, collation info + * + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function alterDatabase($database, $options = array()) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ dropDatabase() + + /** + * drop an existing database + * + * @param string $name name of the database that should be dropped + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function dropDatabase($database) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ _getCreateTableQuery() + + /** + * Create a basic SQL query for a new table creation + * + * @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 + * @param array $options An associative array of table options + * + * @return mixed string (the SQL query) on success, a MDB2 error on failure + * @see createTable() + */ + function _getCreateTableQuery($name, $fields, $options = array()) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + if (!$name) { + return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null, + 'no valid table name specified', __FUNCTION__); + } + if (empty($fields)) { + return $db->raiseError(MDB2_ERROR_CANNOT_CREATE, null, null, + 'no fields specified for table "'.$name.'"', __FUNCTION__); + } + $query_fields = $this->getFieldDeclarationList($fields); + if (PEAR::isError($query_fields)) { + return $query_fields; + } + if (!empty($options['primary'])) { + $query_fields.= ', PRIMARY KEY ('.implode(', ', array_keys($options['primary'])).')'; + } + + $name = $db->quoteIdentifier($name, true); + $result = 'CREATE '; + if (!empty($options['temporary'])) { + $result .= $this->_getTemporaryTableQuery(); + } + $result .= " TABLE $name ($query_fields)"; + return $result; + } + + // }}} + // {{{ _getTemporaryTableQuery() + + /** + * A method to return the required SQL string that fits between CREATE ... TABLE + * to create the table as a temporary table. + * + * Should be overridden in driver classes to return the correct string for the + * specific database type. + * + * The default is to return the string "TEMPORARY" - this will result in a + * SQL error for any database that does not support temporary tables, or that + * requires a different SQL command from "CREATE TEMPORARY TABLE". + * + * @return string The string required to be placed between "CREATE" and "TABLE" + * to generate a temporary table, if possible. + */ + function _getTemporaryTableQuery() + { + return 'TEMPORARY'; + } + + // }}} + // {{{ 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. + * array( + * 'id' => array( + * 'type' => 'integer', + * 'unsigned' => 1 + * 'notnull' => 1 + * 'default' => 0 + * ), + * 'name' => array( + * 'type' => 'text', + * 'length' => 12 + * ), + * 'password' => array( + * 'type' => 'text', + * 'length' => 12 + * ) + * ); + * @param array $options An associative array of table options: + * array( + * 'comment' => 'Foo', + * 'temporary' => true|false, + * ); + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function createTable($name, $fields, $options = array()) + { + $query = $this->_getCreateTableQuery($name, $fields, $options); + if (PEAR::isError($query)) { + return $query; + } + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + $result = $db->exec($query); + if (PEAR::isError($result)) { + return $result; + } + 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) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + $name = $db->quoteIdentifier($name, true); + return $db->exec("DROP TABLE $name"); + } + + // }}} + // {{{ 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("DELETE FROM $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; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ 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; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ 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; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implementedd', __FUNCTION__); + } + + // }}} + // {{{ 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; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ listViews() + + /** + * list all views in the current database + * + * @param string database, the current is default + * NB: not all the drivers can get the view names from + * a database other than the current one + * @return mixed array of view names on success, a MDB2 error on failure + * @access public + */ + function listViews($database = null) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ listTableViews() + + /** + * list the views in the database that reference a given table + * + * @param string table for which all referenced views should be found + * @return mixed array of view names on success, a MDB2 error on failure + * @access public + */ + function listTableViews($table) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ listTableTriggers() + + /** + * list all triggers in the database that reference a given table + * + * @param string table for which all referenced triggers should be found + * @return mixed array of trigger names on success, a MDB2 error on failure + * @access public + */ + function listTableTriggers($table = null) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ 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; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ listTables() + + /** + * list all tables in the current database + * + * @param string database, the current is default. + * NB: not all the drivers can get the table names from + * a database other than the current one + * @return mixed array of table names on success, a MDB2 error on failure + * @access public + */ + function listTables($database = null) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ 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; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ 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; + } + + $table = $db->quoteIdentifier($table, true); + $name = $db->quoteIdentifier($db->getIndexName($name), true); + $query = "CREATE INDEX $name ON $table"; + $fields = array(); + foreach (array_keys($definition['fields']) as $field) { + $fields[] = $db->quoteIdentifier($field, true); + } + $query .= ' ('. implode(', ', $fields) . ')'; + return $db->exec($query); + } + + // }}} + // {{{ dropIndex() + + /** + * drop existing index + * + * @param string $table name of table that should be used in method + * @param string $name name of the index to be dropped + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function dropIndex($table, $name) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + $name = $db->quoteIdentifier($db->getIndexName($name), true); + return $db->exec("DROP INDEX $name"); + } + + // }}} + // {{{ 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; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ _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) + { + return ''; + } + + // }}} + // {{{ createConstraint() + + /** + * create a constraint on a table + * + * @param string $table name of the table on which the constraint is to be created + * @param string $name name of the constraint to be created + * @param array $definition associative array that defines properties of the constraint to be created. + * The full structure of the array looks like this: + * <pre> + * array ( + * [primary] => 0 + * [unique] => 0 + * [foreign] => 1 + * [check] => 0 + * [fields] => array ( + * [field1name] => array() // one entry per each field covered + * [field2name] => array() // by the index + * [field3name] => array( + * [sorting] => ascending + * [position] => 3 + * ) + * ) + * [references] => array( + * [table] => name + * [fields] => array( + * [field1name] => array( //one entry per each referenced field + * [position] => 1 + * ) + * ) + * ) + * [deferrable] => 0 + * [initiallydeferred] => 0 + * [onupdate] => CASCADE|RESTRICT|SET NULL|SET DEFAULT|NO ACTION + * [ondelete] => CASCADE|RESTRICT|SET NULL|SET DEFAULT|NO ACTION + * [match] => SIMPLE|PARTIAL|FULL + * ); + * </pre> + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function createConstraint($table, $name, $definition) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + $table = $db->quoteIdentifier($table, true); + $name = $db->quoteIdentifier($db->getIndexName($name), true); + $query = "ALTER TABLE $table ADD CONSTRAINT $name"; + if (!empty($definition['primary'])) { + $query.= ' PRIMARY KEY'; + } elseif (!empty($definition['unique'])) { + $query.= ' UNIQUE'; + } elseif (!empty($definition['foreign'])) { + $query.= ' FOREIGN KEY'; + } + $fields = array(); + foreach (array_keys($definition['fields']) as $field) { + $fields[] = $db->quoteIdentifier($field, true); + } + $query .= ' ('. implode(', ', $fields) . ')'; + if (!empty($definition['foreign'])) { + $query.= ' REFERENCES ' . $db->quoteIdentifier($definition['references']['table'], true); + $referenced_fields = array(); + foreach (array_keys($definition['references']['fields']) as $field) { + $referenced_fields[] = $db->quoteIdentifier($field, true); + } + $query .= ' ('. implode(', ', $referenced_fields) . ')'; + $query .= $this->_getAdvancedFKOptions($definition); + } + return $db->exec($query); + } + + // }}} + // {{{ 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; + } + + $table = $db->quoteIdentifier($table, true); + $name = $db->quoteIdentifier($db->getIndexName($name), true); + return $db->exec("ALTER TABLE $table DROP CONSTRAINT $name"); + } + + // }}} + // {{{ 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; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ 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; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ dropSequence() + + /** + * drop existing sequence + * + * @param string $seq_name name of the sequence to be dropped + * @return mixed MDB2_OK on success, a MDB2 error on failure + * @access public + */ + function dropSequence($name) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} + // {{{ listSequences() + + /** + * list all sequences in the current database + * + * @param string database, the current is default + * NB: not all the drivers can get the sequence names from + * a database other than the current one + * @return mixed array of sequence names on success, a MDB2 error on failure + * @access public + */ + function listSequences($database = null) + { + $db =& $this->getDBInstance(); + if (PEAR::isError($db)) { + return $db; + } + + return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null, + 'method not implemented', __FUNCTION__); + } + + // }}} +} ?>
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