+ if ($query_id)

+ if (!$query_id)

+ if (!$query_id)

+ if ($query_id)

+ $expression = str_replace(array('_', '%'), array("\_", "\%"), $expression);

+ $expression = str_replace(array(chr(0) . "\_", chr(0) . "\%"), array('_', '%'), $expression);

+ $expression = str_replace(array('_', '%'), array("\_", "\%"), $expression);

+ $expression = str_replace(array(chr(0) . "\_", chr(0) . "\%"), array('_', '%'), $expression);

+ $row = mssql_fetch_assoc($result_id);

+ mssql_free_result($result_id);

+ if (!$this->query_result)

+ {

+ return false;

+ }

+

+ else if (strpos($query, 'SELECT') === 0 && $this->query_result !== true)

+ if (!$query_id || $query_id === true)

+ $row = mssql_fetch_assoc($query_id);

+ if ($query_id === true)

+ {

+ return false;

+ }

+

+ return ($query_id) ? @mssql_data_seek($query_id, $rownum) : false;

+ if ($row = mssql_fetch_assoc($result_id))

+ mssql_free_result($result_id);

+ mssql_free_result($result_id);

+ if ($query_id === true)

+ {

+ return false;

+ }

+

+ return mssql_free_result($query_id);

+ $row = mssql_fetch_assoc($result_id);

+ mssql_free_result($result_id);

+ $row = mssql_fetch_assoc($result_id);

+ mssql_free_result($result_id);

+ while ($row = mssql_fetch_row($result))

+ mssql_free_result($result);

+ if ($result)

+ while ($void = mssql_fetch_assoc($result))

+ {

+ // Take the time spent on parsing rows into account

+ }

+ mssql_free_result($result);

+ $row = odbc_fetch_array($result_id);

+ odbc_free_result($result_id);

+ if (!$this->query_result)

+ {

+ return false;

+ }

+

+ else if (strpos($query, 'SELECT') === 0)

+ return ($query_id) ? odbc_fetch_array($query_id) : false;

+ if (odbc_fetch_array($result_id))

+ $id = odbc_result($result_id, 1);

+ odbc_free_result($result_id);

+ odbc_free_result($result_id);

+ return odbc_free_result($query_id);

+ if ($result)

+ while ($void = odbc_fetch_array($result))

+ {

+ // Take the time spent on parsing rows into account

+ }

+ odbc_free_result($result);

+ if (!$this->query_result)

+ {

+ return false;

+ }

+

+ else if (strpos($query, 'SELECT') === 0)

+ if (!$query_id)

+ $row = sqlsrv_fetch_array($query_id, SQLSRV_FETCH_ASSOC);

+ if ($result_id)

+ $row = sqlsrv_fetch_array($result_id);

+ sqlsrv_free_stmt($result_id);

+ return sqlsrv_free_stmt($query_id);

+ sqlsrv_next_result($result);

+ while ($row = sqlsrv_fetch_array($result))

+ sqlsrv_free_stmt($result);

+ if ($result)

+ while ($void = sqlsrv_fetch_array($result))

+ {

+ // Take the time spent on parsing rows into account

+ }

+ sqlsrv_free_stmt($result);

+ if ($result)

+ {

+ $row = mysql_fetch_assoc($result);

+ mysql_free_result($result);

+ $modes = array_map('trim', explode(',', $row['sql_mode']));

+ }

+ else

+ {

+ $modes = array();

+ }

+ if ($result)

+ {

+ $row = mysql_fetch_assoc($result);

+ mysql_free_result($result);

+ $this->sql_server_version = $row['version'];

+ if (!empty($cache) && $use_cache)

+ {

+ $cache->put('mysql_version', $this->sql_server_version);

+ }

+ if (!$this->query_result)

+ {

+ return false;

+ }

+

+ else if (strpos($query, 'SELECT') === 0)

+ return ($query_id) ? mysql_fetch_assoc($query_id) : false;

+ return mysql_free_result($query_id);

+ while ($row = mysql_fetch_assoc($result))

+ mysql_free_result($result);

+ while ($row = mysql_fetch_assoc($result))

+ mysql_free_result($result);

+ if ($result)

+ while ($void = mysql_fetch_assoc($result))

+ {

+ // Take the time spent on parsing rows into account

+ }

+ mysql_free_result($result);

+ if ($result)

+ $row = mysqli_fetch_assoc($result);

+ mysqli_free_result($result);

+ if ($result)

+ $row = mysqli_fetch_assoc($result);

+ mysqli_free_result($result);

+ if (!$this->query_result)

+ {

+ return false;

+ }

+

+ if ($query_id)

+ $result = mysqli_fetch_assoc($query_id);

+ return ($query_id) ? @mysqli_data_seek($query_id, $rownum) : false;

+ if (!$query_id)

+ {

+ return false;

+ }

+

+ if ($query_id === true)

+ {

+ return true;

+ }

+

+ return mysqli_free_result($query_id);

+ while ($row = mysqli_fetch_assoc($result))

+ mysqli_free_result($result);

+ while ($row = mysqli_fetch_assoc($result))

+ mysqli_free_result($result);

+ if ($result)

+ while ($void = mysqli_fetch_assoc($result))

+ mysqli_free_result($result);

+ if (!$this->query_result)

+ {

+ return false;

+ }

+

+ else if (strpos($query, 'SELECT') === 0)

+ if ($query_id)

+ $result = ocifetchinto($query_id, $row, OCI_ASSOC + OCI_RETURN_NULLS);

+ if (!$query_id)

+ if ($stmt)

+ {

+ $success = @ociexecute($stmt, OCI_DEFAULT);

+ if ($success)

+ {

+ $temp_result = ocifetchinto($stmt, $temp_array, OCI_ASSOC + OCI_RETURN_NULLS);

+ ocifreestatement($stmt);

+ if ($temp_result)

+ {

+ return $temp_array['CURRVAL'];

+ }

+ else

+ {

+ return false;

+ }

+ }

+ return ocifreestatement($query_id);

+ if ($result)

+ $success = @ociexecute($result, OCI_DEFAULT);

+ if ($success)

+ {

+ $row = array();

+

+ while (ocifetchinto($result, $row, OCI_ASSOC + OCI_RETURN_NULLS))

+ {

+ // Take the time spent on parsing rows into account

+ }

+ @ocifreestatement($result);

+ }

+ if ($query_id)

+ {

+ $row = pg_fetch_assoc($query_id, null);

+ pg_free_result($query_id);

+ $this->sql_server_version = (!empty($row['version'])) ? trim(substr($row['version'], 10)) : 0;

+ if (!empty($cache) && $use_cache)

+ {

+ $cache->put('pgsql_version', $this->sql_server_version);

+ }

+ if (!$this->query_result)

+ {

+ return false;

+ }

+

+ else if (strpos($query, 'SELECT') === 0)

+ return ($query_id) ? pg_fetch_assoc($query_id, null) : false;

+ return ($query_id) ? @pg_result_seek($query_id, $rownum) : false;

+ $temp_result = pg_fetch_assoc($temp_q_id, null);

+ pg_free_result($query_id);

+ return pg_free_result($query_id);

+ while ($row = pg_fetch_assoc($result, null))

+ pg_free_result($result);

+ if ($result)

+ while ($void = pg_fetch_assoc($result, null))

+ {

+ // Take the time spent on parsing rows into account

+ }

+ pg_free_result($result);

+ if ($result)

+ {

+ $row = sqlite_fetch_array($result, SQLITE_ASSOC);

+ $this->sql_server_version = (!empty($row['version'])) ? $row['version'] : 0;

+ if (!empty($cache) && $use_cache)

+ {

+ $cache->put('sqlite_version', $this->sql_server_version);

+ }

+ if (!$this->query_result)

+ return false;

+

+ if ($cache && $cache_ttl)

+ $this->query_result = $cache->sql_save($this, $query, $this->query_result, $cache_ttl);

+ return ($query_id) ? sqlite_fetch_array($query_id, SQLITE_ASSOC) : false;

+ return ($query_id) ? @sqlite_seek($query_id, $rownum) : false;

+ if ($result)

+ while ($void = sqlite_fetch_array($result, SQLITE_ASSOC))

+ {

+ // Take the time spent on parsing rows into account

+ }

+ if (!$this->query_result)

+ {

+ return false;

+ }

+

+ if ($result)

+ while ($void = $result->fetchArray(SQLITE3_ASSOC))

+ {

+ // Take the time spent on parsing rows into account

+ }

+ /* @var $passwords_manager \phpbb\passwords\manager */

+

+ // soon as the \phpbb\db\tools\tools class is capable of properly

+ global $config;

+

+ $config->set('default_style', $default_style);

+ /** @var \phpbb\db\tools\tools_interface */

+ * @param \phpbb\db\tools\tools_interface $db_tools

+ public function __construct(\phpbb\config\config $config, \phpbb\db\driver\driver_interface $db, \phpbb\db\tools\tools_interface $db_tools, $phpbb_root_path, $php_ext, $table_prefix)

+ /* @var $manager \phpbb\profilefields\manager */

+ /** @var \phpbb\db\tools\tools_interface */

+ public function __construct(array $class_names, \phpbb\config\config $config, \phpbb\db\driver\driver_interface $db, \phpbb\db\tools\tools_interface $db_tools, $phpbb_root_path, $php_ext, $table_prefix)

+ global $user, $phpbb_log;

+

+ $phpbb_log->add('admin', $user->data['user_id'], $user->ip, 'LOG_MODULE_ADD', false, array($module_log_name));

+ /** @var \phpbb\db\tools\tools_interface */

+ public function __construct(ContainerInterface $container, \phpbb\config\config $config, \phpbb\db\driver\driver_interface $db, \phpbb\db\tools\tools_interface $db_tools, $migrations_table, $phpbb_root_path, $php_ext, $table_prefix, $tools, \phpbb\db\migration\helper $helper)

+<?php

+/**

+*

+* This file is part of the phpBB Forum Software package.

+*

+* @copyright (c) phpBB Limited <https://www.phpbb.com>

+* @license GNU General Public License, version 2 (GPL-2.0)

+*

+* For full copyright and license information, please see

+* the docs/CREDITS.txt file.

+*

+*/

+

+namespace phpbb\db\tools;

+

+/**

+ * A factory which serves the suitable tools instance for the given dbal

+ */

+class factory

+{

+ /**

+ * @param mixed $db_driver

+ * @param bool $return_statements

+ * @return \phpbb\db\tools\tools_interface

+ */

+ public function get($db_driver, $return_statements = false)

+ {

+ if ($db_driver instanceof \phpbb\db\driver\mssql || $db_driver instanceof \phpbb\db\driver\mssql_base)

+ {

+ return new \phpbb\db\tools\mssql($db_driver, $return_statements);

+ }

+ else if ($db_driver instanceof \phpbb\db\driver\postgres)

+ {

+ return new \phpbb\db\tools\postgres($db_driver, $return_statements);

+ }

+ else if ($db_driver instanceof \phpbb\db\driver\driver_interface)

+ {

+ return new \phpbb\db\tools\tools($db_driver, $return_statements);

+ }

+

+ throw new \InvalidArgumentException('Invalid database driver given');

+ }

+}

+<?php

+/**

+ *

+ * This file is part of the phpBB Forum Software package.

+ *

+ * @copyright (c) phpBB Limited <https://www.phpbb.com>

+ * @license GNU General Public License, version 2 (GPL-2.0)

+ *

+ * For full copyright and license information, please see

+ * the docs/CREDITS.txt file.

+ *

+ */

+

+namespace phpbb\db\tools;

+

+/**

+ * Database Tools for handling cross-db actions such as altering columns, etc.

+ * Currently not supported is returning SQL for creating tables.

+ */

+class mssql extends tools

+{

+ /**

+ * Is the used MS SQL Server a SQL Server 2000?

+ * @var bool

+ */

+ protected $is_sql_server_2000;

+

+ /**

+ * Get the column types for mssql based databases

+ *

+ * @return array

+ */

+ public static function get_dbms_type_map()

+ {

+ return array(

+ 'mssql' => array(

+ 'INT:' => '[int]',

+ 'BINT' => '[float]',

+ 'UINT' => '[int]',

+ 'UINT:' => '[int]',

+ 'TINT:' => '[int]',

+ 'USINT' => '[int]',

+ 'BOOL' => '[int]',

+ 'VCHAR' => '[varchar] (255)',

+ 'VCHAR:' => '[varchar] (%d)',

+ 'CHAR:' => '[char] (%d)',

+ 'XSTEXT' => '[varchar] (1000)',

+ 'STEXT' => '[varchar] (3000)',

+ 'TEXT' => '[varchar] (8000)',

+ 'MTEXT' => '[text]',

+ 'XSTEXT_UNI'=> '[varchar] (100)',

+ 'STEXT_UNI' => '[varchar] (255)',

+ 'TEXT_UNI' => '[varchar] (4000)',

+ 'MTEXT_UNI' => '[text]',

+ 'TIMESTAMP' => '[int]',

+ 'DECIMAL' => '[float]',

+ 'DECIMAL:' => '[float]',

+ 'PDECIMAL' => '[float]',

+ 'PDECIMAL:' => '[float]',

+ 'VCHAR_UNI' => '[varchar] (255)',

+ 'VCHAR_UNI:'=> '[varchar] (%d)',

+ 'VCHAR_CI' => '[varchar] (255)',

+ 'VARBINARY' => '[varchar] (255)',

+ ),

+

+ 'mssqlnative' => array(

+ 'INT:' => '[int]',

+ 'BINT' => '[float]',

+ 'UINT' => '[int]',

+ 'UINT:' => '[int]',

+ 'TINT:' => '[int]',

+ 'USINT' => '[int]',

+ 'BOOL' => '[int]',

+ 'VCHAR' => '[varchar] (255)',

+ 'VCHAR:' => '[varchar] (%d)',

+ 'CHAR:' => '[char] (%d)',

+ 'XSTEXT' => '[varchar] (1000)',

+ 'STEXT' => '[varchar] (3000)',

+ 'TEXT' => '[varchar] (8000)',

+ 'MTEXT' => '[text]',

+ 'XSTEXT_UNI'=> '[varchar] (100)',

+ 'STEXT_UNI' => '[varchar] (255)',

+ 'TEXT_UNI' => '[varchar] (4000)',

+ 'MTEXT_UNI' => '[text]',

+ 'TIMESTAMP' => '[int]',

+ 'DECIMAL' => '[float]',

+ 'DECIMAL:' => '[float]',

+ 'PDECIMAL' => '[float]',

+ 'PDECIMAL:' => '[float]',

+ 'VCHAR_UNI' => '[varchar] (255)',

+ 'VCHAR_UNI:'=> '[varchar] (%d)',

+ 'VCHAR_CI' => '[varchar] (255)',

+ 'VARBINARY' => '[varchar] (255)',

+ ),

+ );

+ }

+

+ /**

+ * Constructor. Set DB Object and set {@link $return_statements return_statements}.

+ *

+ * @param \phpbb\db\driver\driver_interface $db Database connection

+ * @param bool $return_statements True if only statements should be returned and no SQL being executed

+ */

+ public function __construct(\phpbb\db\driver\driver_interface $db, $return_statements = false)

+ {

+ parent::__construct($db, $return_statements);

+

+ // Determine mapping database type

+ switch ($this->db->get_sql_layer())

+ {

+ case 'mssql':

+ case 'mssql_odbc':

+ $this->sql_layer = 'mssql';

+ break;

+

+ case 'mssqlnative':

+ $this->sql_layer = 'mssqlnative';

+ break;

+ }

+

+ $this->dbms_type_map = self::get_dbms_type_map();

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_list_tables()

+ {

+ $sql = "SELECT name

+ FROM sysobjects

+ WHERE type='U'";

+ $result = $this->db->sql_query($sql);

+

+ $tables = array();

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ $name = current($row);

+ $tables[$name] = $name;

+ }

+ $this->db->sql_freeresult($result);

+

+ return $tables;

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_create_table($table_name, $table_data)

+ {

+ // holds the DDL for a column

+ $columns = $statements = array();

+

+ if ($this->sql_table_exists($table_name))

+ {

+ return $this->_sql_run_sql($statements);

+ }

+

+ // Begin transaction

+ $statements[] = 'begin';

+

+ // Determine if we have created a PRIMARY KEY in the earliest

+ $primary_key_gen = false;

+

+ // Determine if the table requires a sequence

+ $create_sequence = false;

+

+ // Begin table sql statement

+ $table_sql = 'CREATE TABLE [' . $table_name . '] (' . "\n";

+

+ if (!isset($table_data['PRIMARY_KEY']))

+ {

+ $table_data['COLUMNS']['mssqlindex'] = array('UINT', null, 'auto_increment');

+ $table_data['PRIMARY_KEY'] = 'mssqlindex';

+ }

+

+ // Iterate through the columns to create a table

+ foreach ($table_data['COLUMNS'] as $column_name => $column_data)

+ {

+ // here lies an array, filled with information compiled on the column's data

+ $prepared_column = $this->sql_prepare_column_data($table_name, $column_name, $column_data);

+

+ if (isset($prepared_column['auto_increment']) && $prepared_column['auto_increment'] && strlen($column_name) > 26) // "${column_name}_gen"

+ {

+ trigger_error("Index name '${column_name}_gen' on table '$table_name' is too long. The maximum auto increment column length is 26 characters.", E_USER_ERROR);

+ }

+

+ // here we add the definition of the new column to the list of columns

+ $columns[] = "\t [{$column_name}] " . $prepared_column['column_type_sql_default'];

+

+ // see if we have found a primary key set due to a column definition if we have found it, we can stop looking

+ if (!$primary_key_gen)

+ {

+ $primary_key_gen = isset($prepared_column['primary_key_set']) && $prepared_column['primary_key_set'];

+ }

+

+ // create sequence DDL based off of the existance of auto incrementing columns

+ if (!$create_sequence && isset($prepared_column['auto_increment']) && $prepared_column['auto_increment'])

+ {

+ $create_sequence = $column_name;

+ }

+ }

+

+ // this makes up all the columns in the create table statement

+ $table_sql .= implode(",\n", $columns);

+

+ // Close the table for two DBMS and add to the statements

+ $table_sql .= "\n);";

+ $statements[] = $table_sql;

+

+ // we have yet to create a primary key for this table,

+ // this means that we can add the one we really wanted instead

+ if (!$primary_key_gen)

+ {

+ // Write primary key

+ if (isset($table_data['PRIMARY_KEY']))

+ {

+ if (!is_array($table_data['PRIMARY_KEY']))

+ {

+ $table_data['PRIMARY_KEY'] = array($table_data['PRIMARY_KEY']);

+ }

+

+ // We need the data here

+ $old_return_statements = $this->return_statements;

+ $this->return_statements = true;

+

+ $primary_key_stmts = $this->sql_create_primary_key($table_name, $table_data['PRIMARY_KEY']);

+ foreach ($primary_key_stmts as $pk_stmt)

+ {

+ $statements[] = $pk_stmt;

+ }

+

+ $this->return_statements = $old_return_statements;

+ }

+ }

+

+ // Write Keys

+ if (isset($table_data['KEYS']))

+ {

+ foreach ($table_data['KEYS'] as $key_name => $key_data)

+ {

+ if (!is_array($key_data[1]))

+ {

+ $key_data[1] = array($key_data[1]);

+ }

+

+ $old_return_statements = $this->return_statements;

+ $this->return_statements = true;

+

+ $key_stmts = ($key_data[0] == 'UNIQUE') ? $this->sql_create_unique_index($table_name, $key_name, $key_data[1]) : $this->sql_create_index($table_name, $key_name, $key_data[1]);

+

+ foreach ($key_stmts as $key_stmt)

+ {

+ $statements[] = $key_stmt;

+ }

+

+ $this->return_statements = $old_return_statements;

+ }

+ }

+

+ // Commit Transaction

+ $statements[] = 'commit';

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_list_columns($table_name)

+ {

+ $columns = array();

+

+ $sql = "SELECT c.name

+ FROM syscolumns c

+ LEFT JOIN sysobjects o ON c.id = o.id

+ WHERE o.name = '{$table_name}'";

+ $result = $this->db->sql_query($sql);

+

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ $column = strtolower(current($row));

+ $columns[$column] = $column;

+ }

+ $this->db->sql_freeresult($result);

+

+ return $columns;

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_index_exists($table_name, $index_name)

+ {

+ $sql = "EXEC sp_statistics '$table_name'";

+ $result = $this->db->sql_query($sql);

+

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ if ($row['TYPE'] == 3)

+ {

+ if (strtolower($row['INDEX_NAME']) == strtolower($index_name))

+ {

+ $this->db->sql_freeresult($result);

+ return true;

+ }

+ }

+ }

+ $this->db->sql_freeresult($result);

+

+ return false;

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_unique_index_exists($table_name, $index_name)

+ {

+ $sql = "EXEC sp_statistics '$table_name'";

+ $result = $this->db->sql_query($sql);

+

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ // Usually NON_UNIQUE is the column we want to check, but we allow for both

+ if ($row['TYPE'] == 3)

+ {

+ if (strtolower($row['INDEX_NAME']) == strtolower($index_name))

+ {

+ $this->db->sql_freeresult($result);

+ return true;

+ }

+ }

+ }

+ $this->db->sql_freeresult($result);

+

+ return false;

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_prepare_column_data($table_name, $column_name, $column_data)

+ {

+ if (strlen($column_name) > 30)

+ {

+ trigger_error("Column name '$column_name' on table '$table_name' is too long. The maximum is 30 characters.", E_USER_ERROR);

+ }

+

+ // Get type

+ list($column_type, ) = $this->get_column_type($column_data[0]);

+

+ // Adjust default value if db-dependent specified

+ if (is_array($column_data[1]))

+ {

+ $column_data[1] = (isset($column_data[1][$this->sql_layer])) ? $column_data[1][$this->sql_layer] : $column_data[1]['default'];

+ }

+

+ $sql = '';

+

+ $return_array = array();

+

+ $sql .= " {$column_type} ";

+ $sql_default = " {$column_type} ";

+

+ // For adding columns we need the default definition

+ if (!is_null($column_data[1]))

+ {

+ // For hexadecimal values do not use single quotes

+ if (strpos($column_data[1], '0x') === 0)

+ {

+ $return_array['default'] = 'DEFAULT (' . $column_data[1] . ') ';

+ $sql_default .= $return_array['default'];

+ }

+ else

+ {

+ $return_array['default'] = 'DEFAULT (' . ((is_numeric($column_data[1])) ? $column_data[1] : "'{$column_data[1]}'") . ') ';

+ $sql_default .= $return_array['default'];

+ }

+ }

+

+ if (isset($column_data[2]) && $column_data[2] == 'auto_increment')

+ {

+ // $sql .= 'IDENTITY (1, 1) ';

+ $sql_default .= 'IDENTITY (1, 1) ';

+ }

+

+ $return_array['textimage'] = $column_type === '[text]';

+

+ if (!is_null($column_data[1]) || (isset($column_data[2]) && $column_data[2] == 'auto_increment'))

+ {

+ $sql .= 'NOT NULL';

+ $sql_default .= 'NOT NULL';

+ }

+ else

+ {

+ $sql .= 'NULL';

+ $sql_default .= 'NULL';

+ }

+

+ $return_array['column_type_sql_default'] = $sql_default;

+

+ $return_array['column_type_sql'] = $sql;

+

+ return $return_array;

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_column_add($table_name, $column_name, $column_data, $inline = false)

+ {

+ $column_data = $this->sql_prepare_column_data($table_name, $column_name, $column_data);

+ $statements = array();

+

+ // Does not support AFTER, only through temporary table

+ $statements[] = 'ALTER TABLE [' . $table_name . '] ADD [' . $column_name . '] ' . $column_data['column_type_sql_default'];

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_column_remove($table_name, $column_name, $inline = false)

+ {

+ $statements = array();

+

+ // We need the data here

+ $old_return_statements = $this->return_statements;

+ $this->return_statements = true;

+

+ $indexes = $this->get_existing_indexes($table_name, $column_name);

+ $indexes = array_merge($indexes, $this->get_existing_indexes($table_name, $column_name, true));

+

+ // Drop any indexes

+ $recreate_indexes = array();

+ if (!empty($indexes))

+ {

+ foreach ($indexes as $index_name => $index_data)

+ {

+ $result = $this->sql_index_drop($table_name, $index_name);

+ $statements = array_merge($statements, $result);

+ if (sizeof($index_data) > 1)

+ {

+ // Remove this column from the index and recreate it

+ $recreate_indexes[$index_name] = array_diff($index_data, array($column_name));

+ }

+ }

+ }

+

+ // Drop default value constraint

+ $result = $this->mssql_get_drop_default_constraints_queries($table_name, $column_name);

+ $statements = array_merge($statements, $result);

+

+ // Remove the column

+ $statements[] = 'ALTER TABLE [' . $table_name . '] DROP COLUMN [' . $column_name . ']';

+

+ if (!empty($recreate_indexes))

+ {

+ // Recreate indexes after we removed the column

+ foreach ($recreate_indexes as $index_name => $index_data)

+ {

+ $result = $this->sql_create_index($table_name, $index_name, $index_data);

+ $statements = array_merge($statements, $result);

+ }

+ }

+

+ $this->return_statements = $old_return_statements;

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_index_drop($table_name, $index_name)

+ {

+ $statements = array();

+

+ $statements[] = 'DROP INDEX ' . $table_name . '.' . $index_name;

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_table_drop($table_name)

+ {

+ $statements = array();

+

+ if (!$this->sql_table_exists($table_name))

+ {

+ return $this->_sql_run_sql($statements);

+ }

+

+ // the most basic operation, get rid of the table

+ $statements[] = 'DROP TABLE ' . $table_name;

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_create_primary_key($table_name, $column, $inline = false)

+ {

+ $statements = array();

+

+ $sql = "ALTER TABLE [{$table_name}] WITH NOCHECK ADD ";

+ $sql .= "CONSTRAINT [PK_{$table_name}] PRIMARY KEY CLUSTERED (";

+ $sql .= '[' . implode("],\n\t\t[", $column) . ']';

+ $sql .= ')';

+

+ $statements[] = $sql;

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_create_unique_index($table_name, $index_name, $column)

+ {

+ $statements = array();

+

+ $this->check_index_name_length($table_name, $index_name);

+

+ $statements[] = 'CREATE UNIQUE INDEX [' . $index_name . '] ON [' . $table_name . ']([' . implode('], [', $column) . '])';

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_create_index($table_name, $index_name, $column)

+ {

+ $statements = array();

+

+ $this->check_index_name_length($table_name, $index_name);

+

+ // remove index length

+ $column = preg_replace('#:.*$#', '', $column);

+

+ $statements[] = 'CREATE INDEX [' . $index_name . '] ON [' . $table_name . ']([' . implode('], [', $column) . '])';

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_list_index($table_name)

+ {

+ $index_array = array();

+ $sql = "EXEC sp_statistics '$table_name'";

+ $result = $this->db->sql_query($sql);

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ if ($row['TYPE'] == 3)

+ {

+ $index_array[] = strtolower($row['INDEX_NAME']);

+ }

+ }

+ $this->db->sql_freeresult($result);

+

+ return $index_array;

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_column_change($table_name, $column_name, $column_data, $inline = false)

+ {

+ $column_data = $this->sql_prepare_column_data($table_name, $column_name, $column_data);

+ $statements = array();

+

+ // We need the data here

+ $old_return_statements = $this->return_statements;

+ $this->return_statements = true;

+

+ $indexes = $this->get_existing_indexes($table_name, $column_name);

+ $unique_indexes = $this->get_existing_indexes($table_name, $column_name, true);

+

+ // Drop any indexes

+ if (!empty($indexes) || !empty($unique_indexes))

+ {

+ $drop_indexes = array_merge(array_keys($indexes), array_keys($unique_indexes));

+ foreach ($drop_indexes as $index_name)

+ {

+ $result = $this->sql_index_drop($table_name, $index_name);

+ $statements = array_merge($statements, $result);

+ }

+ }

+

+ // Drop default value constraint

+ $result = $this->mssql_get_drop_default_constraints_queries($table_name, $column_name);

+ $statements = array_merge($statements, $result);

+

+ // Change the column

+ $statements[] = 'ALTER TABLE [' . $table_name . '] ALTER COLUMN [' . $column_name . '] ' . $column_data['column_type_sql'];

+

+ if (!empty($column_data['default']))

+ {

+ // Add new default value constraint

+ $statements[] = 'ALTER TABLE [' . $table_name . '] ADD CONSTRAINT [DF_' . $table_name . '_' . $column_name . '_1] ' . $this->db->sql_escape($column_data['default']) . ' FOR [' . $column_name . ']';

+ }

+

+ if (!empty($indexes))

+ {

+ // Recreate indexes after we changed the column

+ foreach ($indexes as $index_name => $index_data)

+ {

+ $result = $this->sql_create_index($table_name, $index_name, $index_data);

+ $statements = array_merge($statements, $result);

+ }

+ }

+

+ if (!empty($unique_indexes))

+ {

+ // Recreate unique indexes after we changed the column

+ foreach ($unique_indexes as $index_name => $index_data)

+ {

+ $result = $this->sql_create_unique_index($table_name, $index_name, $index_data);

+ $statements = array_merge($statements, $result);

+ }

+ }

+

+ $this->return_statements = $old_return_statements;

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * Get queries to drop the default constraints of a column

+ *

+ * We need to drop the default constraints of a column,

+ * before being able to change their type or deleting them.

+ *

+ * @param string $table_name

+ * @param string $column_name

+ * @return array Array with SQL statements

+ */

+ protected function mssql_get_drop_default_constraints_queries($table_name, $column_name)

+ {

+ $statements = array();

+ if ($this->mssql_is_sql_server_2000())

+ {

+ // http://msdn.microsoft.com/en-us/library/aa175912%28v=sql.80%29.aspx

+ // Deprecated in SQL Server 2005

+ $sql = "SELECT so.name AS def_name

+ FROM sysobjects so

+ JOIN sysconstraints sc ON so.id = sc.constid

+ WHERE object_name(so.parent_obj) = '{$table_name}'

+ AND so.xtype = 'D'

+ AND sc.colid = (SELECT colid FROM syscolumns

+ WHERE id = object_id('{$table_name}')

+ AND name = '{$column_name}')";

+ }

+ else

+ {

+ $sql = "SELECT dobj.name AS def_name

+ FROM sys.columns col

+ LEFT OUTER JOIN sys.objects dobj ON (dobj.object_id = col.default_object_id AND dobj.type = 'D')

+ WHERE col.object_id = object_id('{$table_name}')

+ AND col.name = '{$column_name}'

+ AND dobj.name IS NOT NULL";

+ }

+

+ $result = $this->db->sql_query($sql);

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ $statements[] = 'ALTER TABLE [' . $table_name . '] DROP CONSTRAINT [' . $row['def_name'] . ']';

+ }

+ $this->db->sql_freeresult($result);

+

+ return $statements;

+ }

+

+ /**

+ * Get a list with existing indexes for the column

+ *

+ * @param string $table_name

+ * @param string $column_name

+ * @param bool $unique Should we get unique indexes or normal ones

+ * @return array Array with Index name => columns

+ */

+ public function get_existing_indexes($table_name, $column_name, $unique = false)

+ {

+ $existing_indexes = array();

+ if ($this->mssql_is_sql_server_2000())

+ {

+ // http://msdn.microsoft.com/en-us/library/aa175912%28v=sql.80%29.aspx

+ // Deprecated in SQL Server 2005

+ $sql = "SELECT DISTINCT ix.name AS phpbb_index_name

+ FROM sysindexes ix

+ INNER JOIN sysindexkeys ixc

+ ON ixc.id = ix.id

+ AND ixc.indid = ix.indid

+ INNER JOIN syscolumns cols

+ ON cols.colid = ixc.colid

+ AND cols.id = ix.id

+ WHERE ix.id = object_id('{$table_name}')

+ AND cols.name = '{$column_name}'

+ AND INDEXPROPERTY(ix.id, ix.name, 'IsUnique') = " . ($unique ? '1' : '0');

+ }

+ else

+ {

+ $sql = "SELECT DISTINCT ix.name AS phpbb_index_name

+ FROM sys.indexes ix

+ INNER JOIN sys.index_columns ixc

+ ON ixc.object_id = ix.object_id

+ AND ixc.index_id = ix.index_id

+ INNER JOIN sys.columns cols

+ ON cols.column_id = ixc.column_id

+ AND cols.object_id = ix.object_id

+ WHERE ix.object_id = object_id('{$table_name}')

+ AND cols.name = '{$column_name}'

+ AND ix.is_unique = " . ($unique ? '1' : '0');

+ }

+

+ $result = $this->db->sql_query($sql);

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ if (!isset($row['is_unique']) || ($unique && $row['is_unique'] == 'UNIQUE') || (!$unique && $row['is_unique'] == 'NONUNIQUE'))

+ {

+ $existing_indexes[$row['phpbb_index_name']] = array();

+ }

+ }

+ $this->db->sql_freeresult($result);

+

+ if (empty($existing_indexes))

+ {

+ return array();

+ }

+

+ if ($this->mssql_is_sql_server_2000())

+ {

+ $sql = "SELECT DISTINCT ix.name AS phpbb_index_name, cols.name AS phpbb_column_name

+ FROM sysindexes ix

+ INNER JOIN sysindexkeys ixc

+ ON ixc.id = ix.id

+ AND ixc.indid = ix.indid

+ INNER JOIN syscolumns cols

+ ON cols.colid = ixc.colid

+ AND cols.id = ix.id

+ WHERE ix.id = object_id('{$table_name}')

+ AND " . $this->db->sql_in_set('ix.name', array_keys($existing_indexes));

+ }

+ else

+ {

+ $sql = "SELECT DISTINCT ix.name AS phpbb_index_name, cols.name AS phpbb_column_name

+ FROM sys.indexes ix

+ INNER JOIN sys.index_columns ixc

+ ON ixc.object_id = ix.object_id

+ AND ixc.index_id = ix.index_id

+ INNER JOIN sys.columns cols

+ ON cols.column_id = ixc.column_id

+ AND cols.object_id = ix.object_id

+ WHERE ix.object_id = object_id('{$table_name}')

+ AND " . $this->db->sql_in_set('ix.name', array_keys($existing_indexes));

+ }

+

+ $result = $this->db->sql_query($sql);

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ $existing_indexes[$row['phpbb_index_name']][] = $row['phpbb_column_name'];

+ }

+ $this->db->sql_freeresult($result);

+

+ return $existing_indexes;

+ }

+

+ /**

+ * Is the used MS SQL Server a SQL Server 2000?

+ *

+ * @return bool

+ */

+ protected function mssql_is_sql_server_2000()

+ {

+ if ($this->is_sql_server_2000 === null)

+ {

+ $sql = "SELECT CAST(SERVERPROPERTY('productversion') AS VARCHAR(25)) AS mssql_version";

+ $result = $this->db->sql_query($sql);

+ $properties = $this->db->sql_fetchrow($result);

+ $this->db->sql_freeresult($result);

+ $this->is_sql_server_2000 = $properties['mssql_version'][0] == '8';

+ }

+

+ return $this->is_sql_server_2000;

+ }

+

+}

+<?php

+/**

+ *

+ * This file is part of the phpBB Forum Software package.

+ *

+ * @copyright (c) phpBB Limited <https://www.phpbb.com>

+ * @license GNU General Public License, version 2 (GPL-2.0)

+ *

+ * For full copyright and license information, please see

+ * the docs/CREDITS.txt file.

+ *

+ */

+

+namespace phpbb\db\tools;

+

+/**

+ * Database Tools for handling cross-db actions such as altering columns, etc.

+ * Currently not supported is returning SQL for creating tables.

+ */

+class postgres extends tools

+{

+ /**

+ * Get the column types for postgres only

+ *

+ * @return array

+ */

+ public static function get_dbms_type_map()

+ {

+ return array(

+ 'postgres' => array(

+ 'INT:' => 'INT4',

+ 'BINT' => 'INT8',

+ 'UINT' => 'INT4', // unsigned

+ 'UINT:' => 'INT4', // unsigned

+ 'USINT' => 'INT2', // unsigned

+ 'BOOL' => 'INT2', // unsigned

+ 'TINT:' => 'INT2',

+ 'VCHAR' => 'varchar(255)',

+ 'VCHAR:' => 'varchar(%d)',

+ 'CHAR:' => 'char(%d)',

+ 'XSTEXT' => 'varchar(1000)',

+ 'STEXT' => 'varchar(3000)',

+ 'TEXT' => 'varchar(8000)',

+ 'MTEXT' => 'TEXT',

+ 'XSTEXT_UNI'=> 'varchar(100)',

+ 'STEXT_UNI' => 'varchar(255)',

+ 'TEXT_UNI' => 'varchar(4000)',

+ 'MTEXT_UNI' => 'TEXT',

+ 'TIMESTAMP' => 'INT4', // unsigned

+ 'DECIMAL' => 'decimal(5,2)',

+ 'DECIMAL:' => 'decimal(%d,2)',

+ 'PDECIMAL' => 'decimal(6,3)',

+ 'PDECIMAL:' => 'decimal(%d,3)',

+ 'VCHAR_UNI' => 'varchar(255)',

+ 'VCHAR_UNI:'=> 'varchar(%d)',

+ 'VCHAR_CI' => 'varchar_ci',

+ 'VARBINARY' => 'bytea',

+ ),

+ );

+ }

+

+ /**

+ * Constructor. Set DB Object and set {@link $return_statements return_statements}.

+ *

+ * @param \phpbb\db\driver\driver_interface $db Database connection

+ * @param bool $return_statements True if only statements should be returned and no SQL being executed

+ */

+ public function __construct(\phpbb\db\driver\driver_interface $db, $return_statements = false)

+ {

+ parent::__construct($db, $return_statements);

+

+ // Determine mapping database type

+ $this->sql_layer = 'postgres';

+

+ $this->dbms_type_map = self::get_dbms_type_map();

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_list_tables()

+ {

+ $sql = 'SELECT relname

+ FROM pg_stat_user_tables';

+ $result = $this->db->sql_query($sql);

+

+ $tables = array();

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ $name = current($row);

+ $tables[$name] = $name;

+ }

+ $this->db->sql_freeresult($result);

+

+ return $tables;

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_create_table($table_name, $table_data)

+ {

+ // holds the DDL for a column

+ $columns = $statements = array();

+

+ if ($this->sql_table_exists($table_name))

+ {

+ return $this->_sql_run_sql($statements);

+ }

+

+ // Begin transaction

+ $statements[] = 'begin';

+

+ // Determine if we have created a PRIMARY KEY in the earliest

+ $primary_key_gen = false;

+

+ // Determine if the table requires a sequence

+ $create_sequence = false;

+

+ // Begin table sql statement

+ $table_sql = 'CREATE TABLE ' . $table_name . ' (' . "\n";

+

+ // Iterate through the columns to create a table

+ foreach ($table_data['COLUMNS'] as $column_name => $column_data)

+ {

+ // here lies an array, filled with information compiled on the column's data

+ $prepared_column = $this->sql_prepare_column_data($table_name, $column_name, $column_data);

+

+ if (isset($prepared_column['auto_increment']) && $prepared_column['auto_increment'] && strlen($column_name) > 26) // "${column_name}_gen"

+ {

+ trigger_error("Index name '${column_name}_gen' on table '$table_name' is too long. The maximum auto increment column length is 26 characters.", E_USER_ERROR);

+ }

+

+ // here we add the definition of the new column to the list of columns

+ $columns[] = "\t {$column_name} " . $prepared_column['column_type_sql'];

+

+ // see if we have found a primary key set due to a column definition if we have found it, we can stop looking

+ if (!$primary_key_gen)

+ {

+ $primary_key_gen = isset($prepared_column['primary_key_set']) && $prepared_column['primary_key_set'];

+ }

+

+ // create sequence DDL based off of the existance of auto incrementing columns

+ if (!$create_sequence && isset($prepared_column['auto_increment']) && $prepared_column['auto_increment'])

+ {

+ $create_sequence = $column_name;

+ }

+ }

+

+ // this makes up all the columns in the create table statement

+ $table_sql .= implode(",\n", $columns);

+

+ // we have yet to create a primary key for this table,

+ // this means that we can add the one we really wanted instead

+ if (!$primary_key_gen)

+ {

+ // Write primary key

+ if (isset($table_data['PRIMARY_KEY']))

+ {

+ if (!is_array($table_data['PRIMARY_KEY']))

+ {

+ $table_data['PRIMARY_KEY'] = array($table_data['PRIMARY_KEY']);

+ }

+

+ $table_sql .= ",\n\t PRIMARY KEY (" . implode(', ', $table_data['PRIMARY_KEY']) . ')';

+ }

+ }

+

+ // do we need to add a sequence for auto incrementing columns?

+ if ($create_sequence)

+ {

+ $statements[] = "CREATE SEQUENCE {$table_name}_seq;";

+ }

+

+ // close the table

+ $table_sql .= "\n);";

+ $statements[] = $table_sql;

+

+ // Write Keys

+ if (isset($table_data['KEYS']))

+ {

+ foreach ($table_data['KEYS'] as $key_name => $key_data)

+ {

+ if (!is_array($key_data[1]))

+ {

+ $key_data[1] = array($key_data[1]);

+ }

+

+ $old_return_statements = $this->return_statements;

+ $this->return_statements = true;

+

+ $key_stmts = ($key_data[0] == 'UNIQUE') ? $this->sql_create_unique_index($table_name, $key_name, $key_data[1]) : $this->sql_create_index($table_name, $key_name, $key_data[1]);

+

+ foreach ($key_stmts as $key_stmt)

+ {

+ $statements[] = $key_stmt;

+ }

+

+ $this->return_statements = $old_return_statements;

+ }

+ }

+

+ // Commit Transaction

+ $statements[] = 'commit';

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_list_columns($table_name)

+ {

+ $columns = array();

+

+ $sql = "SELECT a.attname

+ FROM pg_class c, pg_attribute a

+ WHERE c.relname = '{$table_name}'

+ AND a.attnum > 0

+ AND a.attrelid = c.oid";

+ $result = $this->db->sql_query($sql);

+

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ $column = strtolower(current($row));

+ $columns[$column] = $column;

+ }

+ $this->db->sql_freeresult($result);

+

+ return $columns;

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_index_exists($table_name, $index_name)

+ {

+ $sql = "SELECT ic.relname as index_name

+ FROM pg_class bc, pg_class ic, pg_index i

+ WHERE (bc.oid = i.indrelid)

+ AND (ic.oid = i.indexrelid)

+ AND (bc.relname = '" . $table_name . "')

+ AND (i.indisunique != 't')

+ AND (i.indisprimary != 't')";

+ $result = $this->db->sql_query($sql);

+

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ // This DBMS prefixes index names with the table name

+ $row['index_name'] = $this->strip_table_name_from_index_name($table_name, $row['index_name']);

+

+ if (strtolower($row['index_name']) == strtolower($index_name))

+ {

+ $this->db->sql_freeresult($result);

+ return true;

+ }

+ }

+ $this->db->sql_freeresult($result);

+

+ return false;

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_unique_index_exists($table_name, $index_name)

+ {

+ $sql = "SELECT ic.relname as index_name, i.indisunique

+ FROM pg_class bc, pg_class ic, pg_index i

+ WHERE (bc.oid = i.indrelid)

+ AND (ic.oid = i.indexrelid)

+ AND (bc.relname = '" . $table_name . "')

+ AND (i.indisprimary != 't')";

+ $result = $this->db->sql_query($sql);

+

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ if ($row['indisunique'] != 't')

+ {

+ continue;

+ }

+

+ // This DBMS prefixes index names with the table name

+ $row['index_name'] = $this->strip_table_name_from_index_name($table_name, $row['index_name']);

+

+ if (strtolower($row['index_name']) == strtolower($index_name))

+ {

+ $this->db->sql_freeresult($result);

+ return true;

+ }

+ }

+ $this->db->sql_freeresult($result);

+

+ return false;

+ }

+

+ /**

+ * Function to prepare some column information for better usage

+ * @access private

+ */

+ function sql_prepare_column_data($table_name, $column_name, $column_data)

+ {

+ if (strlen($column_name) > 30)

+ {

+ trigger_error("Column name '$column_name' on table '$table_name' is too long. The maximum is 30 characters.", E_USER_ERROR);

+ }

+

+ // Get type

+ list($column_type, $orig_column_type) = $this->get_column_type($column_data[0]);

+

+ // Adjust default value if db-dependent specified

+ if (is_array($column_data[1]))

+ {

+ $column_data[1] = (isset($column_data[1][$this->sql_layer])) ? $column_data[1][$this->sql_layer] : $column_data[1]['default'];

+ }

+

+ $sql = " {$column_type} ";

+

+ $return_array = array(

+ 'column_type' => $column_type,

+ 'auto_increment' => false,

+ );

+

+ if (isset($column_data[2]) && $column_data[2] == 'auto_increment')

+ {

+ $default_val = "nextval('{$table_name}_seq')";

+ $return_array['auto_increment'] = true;

+ }

+ else if (!is_null($column_data[1]))

+ {

+ $default_val = "'" . $column_data[1] . "'";

+ $return_array['null'] = 'NOT NULL';

+ $sql .= 'NOT NULL ';

+ }

+ else

+ {

+ // Integers need to have 0 instead of empty string as default

+ if (strpos($column_type, 'INT') === 0)

+ {

+ $default_val = '0';

+ }

+ else

+ {

+ $default_val = "'" . $column_data[1] . "'";

+ }

+ $return_array['null'] = 'NULL';

+ $sql .= 'NULL ';

+ }

+

+ $return_array['default'] = $default_val;

+

+ $sql .= "DEFAULT {$default_val}";

+

+ // Unsigned? Then add a CHECK contraint

+ if (in_array($orig_column_type, $this->unsigned_types))

+ {

+ $return_array['constraint'] = "CHECK ({$column_name} >= 0)";

+ $sql .= " CHECK ({$column_name} >= 0)";

+ }

+

+ $return_array['column_type_sql'] = $sql;

+

+ return $return_array;

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_column_add($table_name, $column_name, $column_data, $inline = false)

+ {

+ $column_data = $this->sql_prepare_column_data($table_name, $column_name, $column_data);

+ $statements = array();

+

+ // Does not support AFTER, only through temporary table

+ if (version_compare($this->db->sql_server_info(true), '8.0', '>='))

+ {

+ $statements[] = 'ALTER TABLE ' . $table_name . ' ADD COLUMN "' . $column_name . '" ' . $column_data['column_type_sql'];

+ }

+ else

+ {

+ // old versions cannot add columns with default and null information

+ $statements[] = 'ALTER TABLE ' . $table_name . ' ADD COLUMN "' . $column_name . '" ' . $column_data['column_type'] . ' ' . $column_data['constraint'];

+

+ if (isset($column_data['null']))

+ {

+ if ($column_data['null'] == 'NOT NULL')

+ {

+ $statements[] = 'ALTER TABLE ' . $table_name . ' ALTER COLUMN ' . $column_name . ' SET NOT NULL';

+ }

+ }

+

+ if (isset($column_data['default']))

+ {

+ $statements[] = 'ALTER TABLE ' . $table_name . ' ALTER COLUMN ' . $column_name . ' SET DEFAULT ' . $column_data['default'];

+ }

+ }

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_column_remove($table_name, $column_name, $inline = false)

+ {

+ $statements = array();

+

+ $statements[] = 'ALTER TABLE ' . $table_name . ' DROP COLUMN "' . $column_name . '"';

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_index_drop($table_name, $index_name)

+ {

+ $statements = array();

+

+ $statements[] = 'DROP INDEX ' . $table_name . '_' . $index_name;

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_table_drop($table_name)

+ {

+ $statements = array();

+

+ if (!$this->sql_table_exists($table_name))

+ {

+ return $this->_sql_run_sql($statements);

+ }

+

+ // the most basic operation, get rid of the table

+ $statements[] = 'DROP TABLE ' . $table_name;

+

+ // PGSQL does not "tightly" bind sequences and tables, we must guess...

+ $sql = "SELECT relname

+ FROM pg_class

+ WHERE relkind = 'S'

+ AND relname = '{$table_name}_seq'";

+ $result = $this->db->sql_query($sql);

+

+ // We don't even care about storing the results. We already know the answer if we get rows back.

+ if ($this->db->sql_fetchrow($result))

+ {

+ $statements[] = "DROP SEQUENCE {$table_name}_seq;\n";

+ }

+ $this->db->sql_freeresult($result);

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_create_primary_key($table_name, $column, $inline = false)

+ {

+ $statements = array();

+

+ $statements[] = 'ALTER TABLE ' . $table_name . ' ADD PRIMARY KEY (' . implode(', ', $column) . ')';

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_create_unique_index($table_name, $index_name, $column)

+ {

+ $statements = array();

+

+ $this->check_index_name_length($table_name, $index_name);

+

+ $statements[] = 'CREATE UNIQUE INDEX ' . $table_name . '_' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ')';

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_create_index($table_name, $index_name, $column)

+ {

+ $statements = array();

+

+ $this->check_index_name_length($table_name, $index_name);

+

+ // remove index length

+ $column = preg_replace('#:.*$#', '', $column);

+

+ $statements[] = 'CREATE INDEX ' . $table_name . '_' . $index_name . ' ON ' . $table_name . '(' . implode(', ', $column) . ')';

+

+ return $this->_sql_run_sql($statements);

+ }

+

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_list_index($table_name)

+ {

+ $index_array = array();

+

+ $sql = "SELECT ic.relname as index_name

+ FROM pg_class bc, pg_class ic, pg_index i

+ WHERE (bc.oid = i.indrelid)

+ AND (ic.oid = i.indexrelid)

+ AND (bc.relname = '" . $table_name . "')

+ AND (i.indisunique != 't')

+ AND (i.indisprimary != 't')";

+ $result = $this->db->sql_query($sql);

+

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ $row['index_name'] = $this->strip_table_name_from_index_name($table_name, $row['index_name']);

+

+ $index_array[] = $row['index_name'];

+ }

+ $this->db->sql_freeresult($result);

+

+ return array_map('strtolower', $index_array);

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ function sql_column_change($table_name, $column_name, $column_data, $inline = false)

+ {

+ $column_data = $this->sql_prepare_column_data($table_name, $column_name, $column_data);

+ $statements = array();

+

+ $sql = 'ALTER TABLE ' . $table_name . ' ';

+

+ $sql_array = array();

+ $sql_array[] = 'ALTER COLUMN ' . $column_name . ' TYPE ' . $column_data['column_type'];

+

+ if (isset($column_data['null']))

+ {

+ if ($column_data['null'] == 'NOT NULL')

+ {

+ $sql_array[] = 'ALTER COLUMN ' . $column_name . ' SET NOT NULL';

+ }

+ else if ($column_data['null'] == 'NULL')

+ {

+ $sql_array[] = 'ALTER COLUMN ' . $column_name . ' DROP NOT NULL';

+ }

+ }

+

+ if (isset($column_data['default']))

+ {

+ $sql_array[] = 'ALTER COLUMN ' . $column_name . ' SET DEFAULT ' . $column_data['default'];

+ }

+

+ // we don't want to double up on constraints if we change different number data types

+ if (isset($column_data['constraint']))

+ {

+ $constraint_sql = "SELECT consrc as constraint_data

+ FROM pg_constraint, pg_class bc

+ WHERE conrelid = bc.oid

+ AND bc.relname = '{$table_name}'

+ AND NOT EXISTS (

+ SELECT *

+ FROM pg_constraint as c, pg_inherits as i

+ WHERE i.inhrelid = pg_constraint.conrelid

+ AND c.conname = pg_constraint.conname

+ AND c.consrc = pg_constraint.consrc

+ AND c.conrelid = i.inhparent

+ )";

+

+ $constraint_exists = false;

+

+ $result = $this->db->sql_query($constraint_sql);

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ if (trim($row['constraint_data']) == trim($column_data['constraint']))

+ {

+ $constraint_exists = true;

+ break;

+ }

+ }

+ $this->db->sql_freeresult($result);

+

+ if (!$constraint_exists)

+ {

+ $sql_array[] = 'ADD ' . $column_data['constraint'];

+ }

+ }

+

+ $sql .= implode(', ', $sql_array);

+

+ $statements[] = $sql;

+

+ return $this->_sql_run_sql($statements);

+ }

+

+ /**

+ * Get a list with existing indexes for the column

+ *

+ * @param string $table_name

+ * @param string $column_name

+ * @param bool $unique Should we get unique indexes or normal ones

+ * @return array Array with Index name => columns

+ */

+ public function get_existing_indexes($table_name, $column_name, $unique = false)

+ {

+ // Not supported

+ throw new \Exception('DBMS is not supported');

+ }

+}

+namespace phpbb\db\tools;

+class tools implements tools_interface

+ * {@inheritDoc}

+ */

+ * {@inheritDoc}

+ */

+ * {@inheritDoc}

+ */

+ $table_sql = 'CREATE TABLE ' . $table_name . ' (' . "\n";

+ $columns[] = "\t {$column_name} " . $prepared_column['column_type_sql'];

+ * {@inheritDoc}

+ */

+ * {@inheritDoc}

+ */

+ function sql_list_columns($table_name)

+ $sql = "SHOW COLUMNS FROM $table_name";

+ WHERE LOWER(table_name) = '" . strtolower($table_name) . "'";

+ AND name = '{$table_name}'";

+ * {@inheritDoc}

+ */

+ function sql_column_exists($table_name, $column_name)

+ $columns = $this->sql_list_columns($table_name);

+ * {@inheritDoc}

+ */

+ * {@inheritDoc}

+ */

+ $column_type = '';

+ * {@inheritDoc}

+ */

+ * {@inheritDoc}

+ */

+ * {@inheritDoc}

+ */

+ * {@inheritDoc}

+ */

+ * {@inheritDoc}

+ */

+ * {@inheritDoc}

+ */

+ $this->check_index_name_length($table_name, $index_name);

+ * {@inheritDoc}

+ */

+ $this->check_index_name_length($table_name, $index_name);

+ * Check whether the index name is too long

+ *

+ * @param string $table_name

+ * @param string $index_name

+ */

+ protected function check_index_name_length($table_name, $index_name)

+ {

+ $table_prefix = substr(CONFIG_TABLE, 0, -6); // strlen(config)

+ if (strlen($table_name . $index_name) - strlen($table_prefix) > 24)

+ {

+ $max_length = strlen($table_prefix) + 24;

+ trigger_error("Index name '{$table_name}_$index_name' on table '$table_name' is too long. The maximum is $max_length characters.", E_USER_ERROR);

+ }

+ }

+

+ /**

+ * {@inheritDoc}

+ */

+ switch ($this->sql_layer)

+ case 'mysql_40':

+ case 'mysql_41':

+ $sql = 'SHOW KEYS

+ FROM ' . $table_name;

+ $col = 'Key_name';

+ case 'oracle':

+ $sql = "SELECT index_name

+ FROM user_indexes

+ WHERE table_name = '" . strtoupper($table_name) . "'

+ AND generated = 'N'

+ AND uniqueness = 'NONUNIQUE'";

+ $col = 'index_name';

+ case 'sqlite':

+ case 'sqlite3':

+ $sql = "PRAGMA index_info('" . $table_name . "');";

+ $col = 'name';

+ }

+ $result = $this->db->sql_query($sql);

+ while ($row = $this->db->sql_fetchrow($result))

+ {

+ if (($this->sql_layer == 'mysql_40' || $this->sql_layer == 'mysql_41') && !$row['Non_unique'])

+ {

+ continue;

+ switch ($this->sql_layer)

+ case 'oracle':

+ case 'sqlite':

+ case 'sqlite3':

+ $row[$col] = substr($row[$col], strlen($table_name) + 1);

+

+ $index_array[] = $row[$col];

+ $this->db->sql_freeresult($result);

+ * {@inheritDoc}

+ */

+<?php

+/**

+*

+* This file is part of the phpBB Forum Software package.

+*

+* @copyright (c) phpBB Limited <https://www.phpbb.com>

+* @license GNU General Public License, version 2 (GPL-2.0)

+*

+* For full copyright and license information, please see

+* the docs/CREDITS.txt file.

+*

+*/

+

+namespace phpbb\db\tools;

+

+/**

+ * Interface for a Database Tools for handling cross-db actions such as altering columns, etc.

+ */

+interface tools_interface

+{

+ /**

+ * Handle passed database update array.

+ * Expected structure...

+ * Key being one of the following

+ * drop_tables: Drop tables

+ * add_tables: Add tables

+ * change_columns: Column changes (only type, not name)

+ * add_columns: Add columns to a table

+ * drop_keys: Dropping keys

+ * drop_columns: Removing/Dropping columns

+ * add_primary_keys: adding primary keys

+ * add_unique_index: adding an unique index

+ * add_index: adding an index (can be column:index_size if you need to provide size)

+ *

+ * The values are in this format:

+ * {TABLE NAME} => array(

+ * {COLUMN NAME} => array({COLUMN TYPE}, {DEFAULT VALUE}, {OPTIONAL VARIABLES}),

+ * {KEY/INDEX NAME} => array({COLUMN NAMES}),

+ * )

+ *

+ *

+ * @param array $schema_changes

+ * @return null

+ */

+ public function perform_schema_changes($schema_changes);

+

+ /**

+ * Gets a list of tables in the database.

+ *

+ * @return array Array of table names (all lower case)

+ */

+ public function sql_list_tables();

+

+ /**

+ * Check if table exists

+ *

+ * @param string $table_name The table name to check for

+ * @return bool true if table exists, else false

+ */

+ public function sql_table_exists($table_name);

+

+ /**

+ * Create SQL Table

+ *

+ * @param string $table_name The table name to create

+ * @param array $table_data Array containing table data.

+ * @return array|true Statements to run, or true if the statements have been executed

+ */

+ public function sql_create_table($table_name, $table_data);

+

+ /**

+ * Drop Table

+ *

+ * @param string $table_name The table name to drop

+ * @return array|true Statements to run, or true if the statements have been executed

+ */

+ public function sql_table_drop($table_name);

+

+ /**

+ * Gets a list of columns of a table.

+ *

+ * @param string $table_name Table name

+ * @return array Array of column names (all lower case)

+ */

+ public function sql_list_columns($table_name);

+

+ /**

+ * Check whether a specified column exist in a table

+ *

+ * @param string $table_name Table to check

+ * @param string $column_name Column to check

+ * @return bool True if column exists, false otherwise

+ */

+ public function sql_column_exists($table_name, $column_name);

+

+ /**

+ * Add new column

+ *

+ * @param string $table_name Table to modify

+ * @param string $column_name Name of the column to add

+ * @param array $column_data Column data

+ * @param bool $inline Whether the query should actually be run,

+ * or return a string for adding the column

+ * @return array|true Statements to run, or true if the statements have been executed

+ */

+ public function sql_column_add($table_name, $column_name, $column_data, $inline = false);

+

+ /**

+ * Change column type (not name!)

+ *

+ * @param string $table_name Table to modify

+ * @param string $column_name Name of the column to modify

+ * @param array $column_data Column data

+ * @param bool $inline Whether the query should actually be run,

+ * or return a string for modifying the column

+ * @return array|true Statements to run, or true if the statements have been executed

+ */

+ public function sql_column_change($table_name, $column_name, $column_data, $inline = false);

+

+ /**

+ * Drop column

+ *

+ * @param string $table_name Table to modify

+ * @param string $column_name Name of the column to drop

+ * @param bool $inline Whether the query should actually be run,

+ * or return a string for deleting the column

+ * @return array|true Statements to run, or true if the statements have been executed

+ */

+ public function sql_column_remove($table_name, $column_name, $inline = false);

+

+ /**

+ * List all of the indices that belong to a table

+ *

+ * NOTE: does not list

+ * - UNIQUE indices

+ * - PRIMARY keys

+ *

+ * @param string $table_name Table to check

+ * @return array Array with index names

+ */

+ public function sql_list_index($table_name);

+

+ /**

+ * Check if a specified index exists in table. Does not return PRIMARY KEY and UNIQUE indexes.

+ *

+ * @param string $table_name Table to check the index at

+ * @param string $index_name The index name to check

+ * @return bool True if index exists, else false

+ */

+ public function sql_index_exists($table_name, $index_name);

+

+ /**

+ * Add index

+ *

+ * @param string $table_name Table to modify

+ * @param string $index_name Name of the index to create

+ * @param string|array $column Either a string with a column name, or an array with columns

+ * @return array|true Statements to run, or true if the statements have been executed

+ */

+ public function sql_create_index($table_name, $index_name, $column);

+

+ /**

+ * Drop Index

+ *

+ * @param string $table_name Table to modify

+ * @param string $index_name Name of the index to delete

+ * @return array|true Statements to run, or true if the statements have been executed

+ */

+ public function sql_index_drop($table_name, $index_name);

+

+ /**

+ * Check if a specified index exists in table.

+ *

+ * NOTE: Does not return normal and PRIMARY KEY indexes

+ *

+ * @param string $table_name Table to check the index at

+ * @param string $index_name The index name to check

+ * @return bool True if index exists, else false

+ */

+ public function sql_unique_index_exists($table_name, $index_name);

+

+ /**

+ * Add unique index

+ *

+ * @param string $table_name Table to modify

+ * @param string $index_name Name of the unique index to create

+ * @param string|array $column Either a string with a column name, or an array with columns

+ * @return array|true Statements to run, or true if the statements have been executed

+ */

+ public function sql_create_unique_index($table_name, $index_name, $column);

+

+ /**

+ * Add primary key

+ *

+ * @param string $table_name Table to modify

+ * @param string|array $column Either a string with a column name, or an array with columns

+ * @param bool $inline Whether the query should actually be run,

+ * or return a string for creating the key

+ * @return array|true Statements to run, or true if the statements have been executed

+ */

+ public function sql_create_primary_key($table_name, $column, $inline = false);

+}