-<?php

-/**

-*

-* @package dbal

-* @version $Id$

-* @copyright (c) 2005 phpBB Group

-* @license http://opensource.org/licenses/gpl-license.php GNU Public License

-*

-*/

-

-/**

-* @ignore

-*/

-if (!defined('IN_PHPBB'))

-{

- exit;

-}

-

-/**

-* Firebird/Interbase Database Abstraction Layer

-* Minimum Requirement: 2.0+

-* @package dbal

-*/

-class phpbb_dbal_firebird extends phpbb_dbal

-{

- /**

- * @var string Database type. No distinction between versions or used extensions.

- */

- public $dbms_type = 'firebird';

-

- /**

- * @var array Database type map, column layout information

- */

- public $dbms_type_map = array(

- 'INT:' => 'INTEGER',

- 'BINT' => 'DOUBLE PRECISION',

- 'UINT' => 'INTEGER',

- 'UINT:' => 'INTEGER',

- 'TINT:' => 'INTEGER',

- 'USINT' => 'INTEGER',

- 'BOOL' => 'INTEGER',

- 'VCHAR' => 'VARCHAR(255) CHARACTER SET NONE',

- 'VCHAR:' => 'VARCHAR(%d) CHARACTER SET NONE',

- 'CHAR:' => 'CHAR(%d) CHARACTER SET NONE',

- 'XSTEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',

- 'STEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',

- 'TEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',

- 'MTEXT' => 'BLOB SUB_TYPE TEXT CHARACTER SET NONE',

- 'XSTEXT_UNI'=> 'VARCHAR(100) CHARACTER SET UTF8',

- 'STEXT_UNI' => 'VARCHAR(255) CHARACTER SET UTF8',

- 'TEXT_UNI' => 'BLOB SUB_TYPE TEXT CHARACTER SET UTF8',

- 'MTEXT_UNI' => 'BLOB SUB_TYPE TEXT CHARACTER SET UTF8',

- 'TIMESTAMP' => 'INTEGER',

- 'DECIMAL' => 'DOUBLE PRECISION',

- 'DECIMAL:' => 'DOUBLE PRECISION',

- 'PDECIMAL' => 'DOUBLE PRECISION',

- 'PDECIMAL:' => 'DOUBLE PRECISION',

- 'VCHAR_UNI' => 'VARCHAR(255) CHARACTER SET UTF8',

- 'VCHAR_UNI:'=> 'VARCHAR(%d) CHARACTER SET UTF8',

- 'VARBINARY' => 'CHAR(255) CHARACTER SET NONE',

- );

-

- /**

- * @var string Last query executed. We need this for sql_nextid()

- */

- var $last_query_text = '';

-

- /**

- * @var resource Attached service handle.

- */

- var $service_handle = false;

-

- /**

- * @var array Database features

- */

- public $features = array(

- 'multi_insert' => false,

- 'count_distinct' => true,

- 'multi_table_deletion' => true,

- 'truncate' => false,

- );

-

- /**

- * Connect to server. See {@link phpbb_dbal::sql_connect() sql_connect()} for details.

- */

- public function sql_connect($server, $user, $password, $database, $port = false, $persistency = false , $new_link = false)

- {

- $this->persistency = $persistency;

- $this->user = $user;

- $this->server = $server . (($port) ? ':' . $port : '');

- $this->dbname = str_replace('\\', '/', $database);

-

- // There are three possibilities to connect to an interbase db

- if (!$this->server)

- {

- $use_database = $this->dbname;

- }

- else if (strpos($this->server, '//') === 0)

- {

- $use_database = $this->server . $this->dbname;

- }

- else

- {

- $use_database = $this->server . ':' . $this->dbname;

- }

-

- $this->db_connect_id = ($this->persistency) ? @ibase_pconnect($use_database, $this->user, $password, false, false, 3) : @ibase_connect($use_database, $this->user, $password, false, false, 3);

-

- if (!$this->db_connect_id)

- {

- return $this->sql_error('');

- }

-

- $this->service_handle = ($this->server) ? @ibase_service_attach($this->server, $this->user, $password) : false;

-

- return $this->db_connect_id;

- }

-

- /**

- * Version information about used database. See {@link phpbb_dbal::sql_server_info() sql_server_info()} for details.

- */

- public function sql_server_info($raw = false)

- {

- if (!phpbb::registered('acm') || ($this->sql_server_version = phpbb::$acm->get('#firebird_version')) === false)

- {

- $version = false;

-

- if ($this->service_handle !== false)

- {

- $val = @ibase_server_info($this->service_handle, IBASE_SVC_SERVER_VERSION);

- preg_match('#V([\d.]+)#', $val, $version);

- $version = (!empty($version[1])) ? $version[1] : false;

- }

-

- $this->sql_server_version = (!$version) ? '2.0' : $version;

-

- if (phpbb::registered('acm'))

- {

- phpbb::$acm->put('#firebird_version', $this->sql_server_version);

- }

- }

-

- return ($raw) ? $this->sql_server_version : 'Firebird/Interbase ' . $this->sql_server_version;

- }

-

- /**

- * DB-specific base query method. See {@link phpbb_dbal::_sql_query() _sql_query()} for details.

- */

- protected function _sql_query($query)

- {

- $this->last_query_text = $query;

-

- $array = array();

-

- // We overcome Firebird's 32767 char limit by binding vars

- if (strlen($query) > 32767)

- {

- if (preg_match('/^(INSERT INTO[^(]++)\\(([^()]+)\\) VALUES[^(]++\\((.*?)\\)$/s', $query, $regs))

- {

- if (strlen($regs[3]) > 32767)

- {

- preg_match_all('/\'(?:[^\']++|\'\')*+\'|[\d-.]+/', $regs[3], $vals, PREG_PATTERN_ORDER);

-

- $inserts = $vals[0];

- unset($vals);

-

- foreach ($inserts as $key => $value)

- {

- // check to see if this thing is greater than the max + 'x2

- if (!empty($value) && $value[0] === "'" && strlen($value) > 32769)

- {

- $inserts[$key] = '?';

- $array[] = str_replace("''", "'", substr($value, 1, -1));

- }

- }

-

- $query = $regs[1] . '(' . $regs[2] . ') VALUES (' . implode(', ', $inserts) . ')';

- }

- }

- else if (preg_match('/^(UPDATE ([\\w_]++)\\s+SET )([\\w_]++\\s*=\\s*(?:\'(?:[^\']++|\'\')*+\'|\\d+)(?:,\\s*[\\w_]++\\s*=\\s*(?:\'(?:[^\']++|\'\')*+\'|[\d-.]+))*+)\\s+(WHERE.*)$/s', $query, $data))

- {

- if (strlen($data[3]) > 32767)

- {

- $update = $data[1];

- $where = $data[4];

- preg_match_all('/(\\w++)\\s*=\\s*(\'(?:[^\']++|\'\')*+\'|[\d-.]++)/', $data[3], $temp, PREG_SET_ORDER);

- unset($data);

-

- $cols = array();

- foreach ($temp as $value)

- {

- // check to see if this thing is greater than the max + 'x2

- if (!empty($value[2]) && $value[2][0] === "'" && strlen($value[2]) > 32769)

- {

- $array[] = str_replace("''", "'", substr($value[2], 1, -1));

- $cols[] = $value[1] . '=?';

- }

- else

- {

- $cols[] = $value[1] . '=' . $value[2];

- }

- }

-

- $query = $update . implode(', ', $cols) . ' ' . $where;

- unset($cols);

- }

- }

- }

-

- if (sizeof($array))

- {

- $p_query = @ibase_prepare($this->db_connect_id, $query);

- array_unshift($array, $p_query);

- $result = call_user_func_array('ibase_execute', $array);

- unset($array);

- }

- else

- {

- $result = @ibase_query($this->db_connect_id, $query);

-

- if ($result && !$this->transaction)

- {

- @ibase_commit_ret();

- }

- }

-

- return $result;

- }

-

- /**

- * Build LIMIT query and run it. See {@link phpbb_dbal::_sql_query_limit() _sql_query_limit()} for details.

- */

- protected function _sql_query_limit($query, $total, $offset, $cache_ttl)

- {

- $query = 'SELECT FIRST ' . $total . ((!empty($offset)) ? ' SKIP ' . $offset : '') . substr($query, 6);

- return $this->sql_query($query, $cache_ttl);

- }

-

- /**

- * Close sql connection. See {@link phpbb_dbal::_sql_close() _sql_close()} for details.

- */

- protected function _sql_close()

- {

- if ($this->service_handle !== false)

- {

- @ibase_service_detach($this->service_handle);

- }

-

- return @ibase_close($this->db_connect_id);

- }

-

- /**

- * SQL Transaction. See {@link phpbb_dbal::_sql_transaction() _sql_transaction()} for details.

- */

- protected function _sql_transaction($status)

- {

- switch ($status)

- {

- case 'begin':

- return true;

- break;

-

- case 'commit':

- return @ibase_commit();

- break;

-

- case 'rollback':

- return @ibase_rollback();

- break;

- }

-

- return true;

- }

-

- /**

- * Return number of affected rows. See {@link phpbb_dbal::sql_affectedrows() sql_affectedrows()} for details.

- */

- public function sql_affectedrows()

- {

- return ($this->db_connect_id) ? @ibase_affected_rows($this->db_connect_id) : false;

- }

-

- /**

- * Get last inserted id after insert statement. See {@link phpbb_dbal::sql_nextid() sql_nextid()} for details.

- */

- public function sql_nextid()

- {

- if (!$this->query_result || !$this->last_query_text)

- {

- return false;

- }

-

- if (preg_match('#^INSERT[\t\n ]+INTO[\t\n ]+([a-z0-9\_\-]+)#i', $this->last_query_text, $tablename))

- {

- $sql = 'SELECT GEN_ID(' . $tablename[1] . '_gen, 0) AS new_id FROM RDB$DATABASE';

-

- if (!($temp_q_id = @ibase_query($this->db_connect_id, $sql)))

- {

- return false;

- }

-

- $temp_result = @ibase_fetch_assoc($temp_q_id);

- @ibase_free_result($temp_q_id);

-

- return ($temp_result) ? $temp_result['NEW_ID'] : false;

- }

-

- return false;

- }

-

- /**

- * Fetch current row. See {@link phpbb_dbal::_sql_fetchrow() _sql_fetchrow()} for details.

- */

- protected function _sql_fetchrow($query_id)

- {

- $cur_row = @ibase_fetch_object($query_id, IBASE_TEXT);

-

- if (!$cur_row)

- {

- return false;

- }

-

- foreach (get_object_vars($cur_row) as $key => $value)

- {

- $row[strtolower($key)] = (is_string($value)) ? trim(str_replace(array("\\0", "\\n"), array("\0", "\n"), $value)) : $value;

- }

-

- return (sizeof($row)) ? $row : false;

- }

-

- /**

- * Free query result. See {@link phpbb_dbal::_sql_freeresult() _sql_freeresult()} for details.

- */

- protected function _sql_freeresult($query_id)

- {

- return @ibase_free_result($query_id);

- }

-

- /**

- * Correctly adjust LIKE expression for special characters. See {@link phpbb_dbal::_sql_like_expression() _sql_like_expression()} for details.

- */

- protected function _sql_like_expression($expression)

- {

- return $expression . " ESCAPE '\\'";

- }

-

- /**

- * Escape string used in sql query. See {@link phpbb_dbal::sql_escape() sql_escape()} for details.

- */

- public function sql_escape($msg)

- {

- return str_replace(array("'", "\0"), array("''", ''), $msg);

- }

-

- /**

- * Expose a DBMS specific function. See {@link phpbb_dbal::sql_function() sql_function()} for details.

- */

- public function sql_function($type, $col)

- {

- switch ($type)

- {

- case 'length_varchar':

- case 'length_text':

- return 'OCTET_LENGTH(' . $col . ')';

- break;

- }

- }

-

- /**

- * Handle data by using prepared statements. See {@link phpbb_dbal::sql_handle_data() sql_handle_data()} for details.

- public function sql_handle_data($type, $table, $data, $where = '')

- {

- if ($type == 'INSERT')

- {

- $stmt = ibase_prepare($this->db_connect_id, "INSERT INTO $table (". implode(', ', array_keys($data)) . ") VALUES (" . substr(str_repeat('?, ', sizeof($data)) ,0, -1) . ')');

- }

- else

- {

- $query = "UPDATE $table SET ";

-

- $set = array();

- foreach (array_keys($data) as $key)

- {

- $set[] = "$key = ?";

- }

- $query .= implode(', ', $set);

-

- if ($where !== '')

- {

- $query .= $where;

- }

-

- $stmt = ibase_prepare($this->db_connect_id, $query);

- }

-

- // get the stmt onto the top of the function arguments

- array_unshift($data, $stmt);

-

- call_user_func_array('ibase_execute', $data);

- }

- */

-

- /**

- * Build DB-specific query bits. See {@link phpbb_dbal::_sql_custom_build() _sql_custom_build()} for details.

- */

- protected function _sql_custom_build($stage, $data)

- {

- return $data;

- }

-

- /**

- * return sql error array. See {@link phpbb_dbal::_sql_error() _sql_error()} for details.

- */

- protected function _sql_error()

- {

- return array(

- 'message' => @ibase_errmsg(),

- 'code' => @ibase_errcode()

- );

- }

-

- /**

- * Run DB-specific code to build SQL Report to explain queries, show statistics and runtime information. See {@link phpbb_dbal::_sql_report() _sql_report()} for details.

- */

- protected function _sql_report($mode, $query = '')

- {

- switch ($mode)

- {

- case 'start':

- break;

-

- case 'fromcache':

- $endtime = explode(' ', microtime());

- $endtime = $endtime[0] + $endtime[1];

-

- $result = @ibase_query($this->db_connect_id, $query);

- while ($void = @ibase_fetch_object($result, IBASE_TEXT))

- {

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

- }

- @ibase_free_result($result);

-

- $splittime = explode(' ', microtime());

- $splittime = $splittime[0] + $splittime[1];

-

- $this->sql_report('record_fromcache', $query, $endtime, $splittime);

-

- break;

- }

- }

-}

-

-?> \ No newline at end of file