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PostgreSQL support
git-svn-id: file:///svn/phpbb/trunk@9289 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Meik Sievertsen
parent
270fd1f5f8
commit
d61459fce3
1 changed files with 161 additions and 224 deletions
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@ -16,99 +16,128 @@ if (!defined('IN_PHPBB'))
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exit;
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}
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include_once(PHPBB_ROOT_PATH . 'includes/db/dbal.' . PHP_EXT);
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/**
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* PostgreSQL Database Abstraction Layer
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* Minimum Requirement is Version 7.3+
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* Minimum Requirement: 8.2+
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* @package dbal
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*/
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class dbal_postgres extends dbal
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class phpbb_dbal_postgres extends phpbb_dbal
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{
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var $last_query_text = '';
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var $dbms_type = 'postgres';
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/**
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* @var string Database type. No distinction between versions or used extensions.
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*/
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public $dbms_type = 'postgres';
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/**
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* Connect to server
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* @var array Database type map, column layout information
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*/
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function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false, $new_link = false)
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public $dbms_type_map = array(
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'INT:' => 'INT4',
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'BINT' => 'INT8',
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'UINT' => 'INT4', // unsigned
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'UINT:' => 'INT4', // unsigned
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'USINT' => 'INT2', // unsigned
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'BOOL' => 'INT2', // unsigned
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'TINT:' => 'INT2',
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'VCHAR' => 'varchar(255)',
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'VCHAR:' => 'varchar(%d)',
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'CHAR:' => 'char(%d)',
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'XSTEXT' => 'varchar(1000)',
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'STEXT' => 'varchar(3000)',
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'TEXT' => 'varchar(8000)',
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'MTEXT' => 'TEXT',
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'XSTEXT_UNI'=> 'varchar(100)',
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'STEXT_UNI' => 'varchar(255)',
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'TEXT_UNI' => 'varchar(4000)',
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'MTEXT_UNI' => 'TEXT',
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'TIMESTAMP' => 'INT4', // unsigned
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'DECIMAL' => 'decimal(5,2)',
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'DECIMAL:' => 'decimal(%d,2)',
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'PDECIMAL' => 'decimal(6,3)',
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'PDECIMAL:' => 'decimal(%d,3)',
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'VCHAR_UNI' => 'varchar(255)',
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'VCHAR_UNI:'=> 'varchar(%d)',
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'VARBINARY' => 'bytea',
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);
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/**
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* @var string PostgreSQL schema (if supplied with $database -> database.schema)
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*/
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public $schema = '';
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/**
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* Connect to server. See {@link phpbb_dbal::sql_connect() sql_connect()} for details.
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*/
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public function sql_connect($server, $user, $password, $database, $port = false, $persistency = false , $new_link = false)
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{
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$this->persistency = $persistency;
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$this->user = $user;
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$this->server = $server;
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$this->dbname = $database;
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$this->port = $port;
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$connect_string = '';
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if ($sqluser)
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if ($this->user)
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{
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$connect_string .= "user=$sqluser ";
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$connect_string .= 'user=' . $this->user . ' ';
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}
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if ($sqlpassword)
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if ($password)
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{
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$connect_string .= "password=$sqlpassword ";
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$connect_string .= 'password=' . $password . ' ';
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}
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if ($sqlserver)
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if ($this->server)
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{
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if (strpos($sqlserver, ':') !== false)
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if (strpos($this->server, ':') !== false)
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{
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list($sqlserver, $port) = explode(':', $sqlserver);
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list($this->server, $this->port) = explode(':', $this->server, 2);
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}
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if ($sqlserver !== 'localhost')
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if ($this->server !== 'localhost')
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{
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$connect_string .= "host=$sqlserver ";
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$connect_string .= 'host=' . $this->server . ' ';
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}
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if ($port)
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if ($this->port)
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{
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$connect_string .= "port=$port ";
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$connect_string .= 'port=' . $this->port . ' ';
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}
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}
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$schema = '';
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$this->schema = '';
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if ($database)
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if ($this->dbname)
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{
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$this->dbname = $database;
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if (strpos($database, '.') !== false)
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if (strpos($this->dbname, '.') !== false)
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{
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list($database, $schema) = explode('.', $database);
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list($this->dbname, $this->schema) = explode('.', $this->dbname, 2);
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}
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$connect_string .= "dbname=$database";
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$connect_string .= 'dbname=' . $this->dbname;
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}
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$this->persistency = $persistency;
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$this->db_connect_id = ($this->persistency) ? @pg_pconnect($connect_string, ($new_link) ? PGSQL_CONNECT_FORCE_NEW : false) : @pg_connect($connect_string, ($new_link) ? PGSQL_CONNECT_FORCE_NEW : false);
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$this->db_connect_id = ($this->persistency) ? @pg_pconnect($connect_string, $new_link) : @pg_connect($connect_string, $new_link);
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if ($this->db_connect_id)
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if (!$this->db_connect_id)
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{
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if (version_compare($this->sql_server_info(true), '8.2', '>='))
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{
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$this->multi_table_deletion = true;
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$this->multi_insert = true;
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}
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if ($schema !== '')
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{
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@pg_query($this->db_connect_id, 'SET search_path TO ' . $schema);
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}
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return $this->db_connect_id;
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return $this->sql_error(htmlspecialchars_decode(phpbb::$last_notice['message']));
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}
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return $this->sql_error('');
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if ($this->schema)
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{
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@pg_query($this->db_connect_id, 'SET search_path TO ' . $this->schema);
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}
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return $this->db_connect_id;
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}
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/**
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* Version information about used database
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* @param bool $raw if true, only return the fetched sql_server_version
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* @return string sql server version
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* Version information about used database. See {@link phpbb_dbal::sql_server_info() sql_server_info()} for details.
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*/
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function sql_server_info($raw = false)
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public function sql_server_info($raw = false)
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{
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global $cache;
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if (empty($cache) || ($this->sql_server_version = $cache->get('pgsql_version')) === false)
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if (!phpbb::registered('acm') || ($this->sql_server_version = phpbb::$acm->get('#pgsql_version')) === false)
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{
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$query_id = @pg_query($this->db_connect_id, 'SELECT VERSION() AS version');
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$row = @pg_fetch_assoc($query_id, null);
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@ -116,9 +145,9 @@ class dbal_postgres extends dbal
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$this->sql_server_version = (!empty($row['version'])) ? trim(substr($row['version'], 10)) : 0;
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if (!empty($cache))
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if (phpbb::registered('acm'))
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{
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$cache->put('pgsql_version', $this->sql_server_version);
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phpbb::$acm->put('#pgsql_version', $this->sql_server_version);
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}
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}
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@ -126,10 +155,40 @@ class dbal_postgres extends dbal
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}
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/**
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* SQL Transaction
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* @access private
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* DB-specific base query method. See {@link phpbb_dbal::_sql_query() _sql_query()} for details.
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*/
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function _sql_transaction($status = 'begin')
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protected function _sql_query($query)
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{
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return @pg_query($this->db_connect_id, $query);
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}
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/**
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* Build LIMIT query and run it. See {@link phpbb_dbal::_sql_query_limit() _sql_query_limit()} for details.
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*/
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protected function _sql_query_limit($query, $total, $offset, $cache_ttl)
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{
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// if $total is set to 0 we do not want to limit the number of rows
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if ($total == 0)
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{
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$total = -1;
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}
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$query .= "\n LIMIT $total OFFSET $offset";
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return $this->sql_query($query, $cache_ttl);
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}
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/**
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* Close sql connection. See {@link phpbb_dbal::_sql_close() _sql_close()} for details.
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*/
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protected function _sql_close()
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{
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return @pg_close($this->db_connect_id);
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}
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/**
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* SQL Transaction. See {@link phpbb_dbal::_sql_transaction() _sql_transaction()} for details.
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*/
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protected function _sql_transaction($status)
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{
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switch ($status)
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{
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@ -150,188 +209,74 @@ class dbal_postgres extends dbal
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}
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/**
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* Base query method
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*
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* @param string $query Contains the SQL query which shall be executed
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* @param int $cache_ttl Either 0 to avoid caching or the time in seconds which the result shall be kept in cache
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* @return mixed When casted to bool the returned value returns true on success and false on failure
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*
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* @access public
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* Return number of affected rows. See {@link phpbb_dbal::sql_affectedrows() sql_affectedrows()} for details.
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*/
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function sql_query($query = '', $cache_ttl = 0)
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{
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if ($query != '')
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{
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global $cache;
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// EXPLAIN only in extra debug mode
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if (defined('DEBUG_EXTRA'))
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{
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$this->sql_report('start', $query);
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}
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$this->last_query_text = $query;
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$this->query_result = ($cache_ttl && method_exists($cache, 'sql_load')) ? $cache->sql_load($query) : false;
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$this->sql_add_num_queries($this->query_result);
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if ($this->query_result === false)
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{
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if (($this->query_result = pg_query($this->db_connect_id, $query)) === false)
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{
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$this->sql_error($query);
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}
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if (defined('DEBUG_EXTRA'))
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{
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$this->sql_report('stop', $query);
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}
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if ($cache_ttl && method_exists($cache, 'sql_save'))
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{
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$this->open_queries[(int) $this->query_result] = $this->query_result;
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$cache->sql_save($query, $this->query_result, $cache_ttl);
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}
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else if (strpos($query, 'SELECT') === 0 && $this->query_result)
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{
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$this->open_queries[(int) $this->query_result] = $this->query_result;
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}
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}
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else if (defined('DEBUG_EXTRA'))
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{
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$this->sql_report('fromcache', $query);
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}
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}
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else
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{
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return false;
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}
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return $this->query_result;
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}
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/**
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* Build db-specific query data
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* @access private
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*/
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function _sql_custom_build($stage, $data)
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{
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return $data;
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}
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/**
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* Build LIMIT query
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*/
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function _sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0)
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{
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$this->query_result = false;
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// if $total is set to 0 we do not want to limit the number of rows
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if ($total == 0)
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{
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$total = -1;
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}
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$query .= "\n LIMIT $total OFFSET $offset";
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return $this->sql_query($query, $cache_ttl);
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}
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/**
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* Return number of affected rows
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*/
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function sql_affectedrows()
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public function sql_affectedrows()
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{
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return ($this->query_result) ? @pg_affected_rows($this->query_result) : false;
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}
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/**
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* Fetch current row
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* Get last inserted id after insert statement. See {@link phpbb_dbal::sql_nextid() sql_nextid()} for details.
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*/
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function sql_fetchrow($query_id = false)
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public function sql_nextid()
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{
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global $cache;
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if ($query_id === false)
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if (!$this->db_connect_id)
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{
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$query_id = $this->query_result;
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return false;
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}
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if (isset($cache->sql_rowset[$query_id]))
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$query = "SELECT lastval() AS last_value";
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$temp_q_id = @pg_query($this->db_connect_id, $query);
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if (!$temp_q_id)
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{
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return $cache->sql_fetchrow($query_id);
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return false;
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}
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return ($query_id !== false) ? @pg_fetch_assoc($query_id, null) : false;
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$temp_result = @pg_fetch_assoc($temp_q_id, NULL);
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@pg_free_result($query_id);
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return ($temp_result) ? $temp_result['last_value'] : false;
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}
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/**
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* Get last inserted id after insert statement
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* Fetch current row. See {@link phpbb_dbal::_sql_fetchrow() _sql_fetchrow()} for details.
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*/
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function sql_nextid()
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protected function _sql_fetchrow($query_id)
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{
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$query_id = $this->query_result;
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if ($query_id !== false && $this->last_query_text != '')
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{
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if (preg_match("/^INSERT[\t\n ]+INTO[\t\n ]+([a-z0-9\_\-]+)/is", $this->last_query_text, $tablename))
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{
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$query = "SELECT currval('" . $tablename[1] . "_seq') AS last_value";
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$temp_q_id = @pg_query($this->db_connect_id, $query);
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if (!$temp_q_id)
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{
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return false;
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}
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$temp_result = @pg_fetch_assoc($temp_q_id, NULL);
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@pg_free_result($query_id);
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return ($temp_result) ? $temp_result['last_value'] : false;
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}
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}
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return false;
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return @pg_fetch_assoc($query_id, null);
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}
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/**
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* Free sql result
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* Free query result. See {@link phpbb_dbal::_sql_freeresult() _sql_freeresult()} for details.
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*/
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function sql_freeresult($query_id = false)
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protected function _sql_freeresult($query_id)
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{
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global $cache;
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if ($query_id === false)
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{
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$query_id = $this->query_result;
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}
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if (isset($cache->sql_rowset[$query_id]))
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{
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return $cache->sql_freeresult($query_id);
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}
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if (isset($this->open_queries[(int) $query_id]))
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{
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unset($this->open_queries[(int) $query_id]);
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return @pg_free_result($query_id);
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}
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return false;
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return @pg_free_result($query_id);
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}
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/**
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* Escape string used in sql query
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* Correctly adjust LIKE expression for special characters. See {@link phpbb_dbal::_sql_like_expression() _sql_like_expression()} for details.
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*/
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protected function _sql_like_expression($expression)
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{
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return $expression;
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}
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/**
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* Escape string used in sql query. See {@link phpbb_dbal::sql_escape() sql_escape()} for details.
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* Note: Do not use for bytea values if we may use them at a later stage
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*/
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function sql_escape($msg)
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public function sql_escape($msg)
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{
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return @pg_escape_string($msg);
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}
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/**
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* Expose a DBMS specific function
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* Expose a DBMS specific function. See {@link phpbb_dbal::sql_function() sql_function()} for details.
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*/
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function sql_function($type, $col)
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public function sql_function($type, $col)
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{
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switch ($type)
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{
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@ -342,7 +287,10 @@ class dbal_postgres extends dbal
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}
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}
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function sql_handle_data($type, $table, $data, $where = '')
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/*
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/**
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* Handle data by using prepared statements. See {@link phpbb_dbal::sql_handle_data() sql_handle_data()} for details.
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public function sql_handle_data($type, $table, $data, $where = '')
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{
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// for now, stmtname is an empty string, it might change to something more unique in the future
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if ($type === 'INSERT')
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|
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@ -364,7 +312,7 @@ class dbal_postgres extends dbal
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{
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$query .= $where;
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}
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$stmt = pg_prepare($this->db_connect_id, '', $query);
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}
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@ -376,21 +324,20 @@ class dbal_postgres extends dbal
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call_user_func_array('pg_execute', $data);
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}
|
||||
*/
|
||||
|
||||
/**
|
||||
* Build LIKE expression
|
||||
* @access private
|
||||
* Build DB-specific query bits. See {@link phpbb_dbal::_sql_custom_build() _sql_custom_build()} for details.
|
||||
*/
|
||||
function _sql_like_expression($expression)
|
||||
protected function _sql_custom_build($stage, $data)
|
||||
{
|
||||
return $expression;
|
||||
return $data;
|
||||
}
|
||||
|
||||
/**
|
||||
* return sql error array
|
||||
* @access private
|
||||
* return sql error array. See {@link phpbb_dbal::_sql_error() _sql_error()} for details.
|
||||
*/
|
||||
function _sql_error()
|
||||
protected function _sql_error()
|
||||
{
|
||||
return array(
|
||||
'message' => (!$this->db_connect_id) ? @pg_last_error() : @pg_last_error($this->db_connect_id),
|
||||
|
|
@ -399,19 +346,9 @@ class dbal_postgres extends dbal
|
|||
}
|
||||
|
||||
/**
|
||||
* Close sql connection
|
||||
* @access private
|
||||
* Run DB-specific code to build SQL Report to explain queries, show statistics and runtime information. See {@link phpbb_dbal::_sql_report() _sql_report()} for details.
|
||||
*/
|
||||
function _sql_close()
|
||||
{
|
||||
return @pg_close($this->db_connect_id);
|
||||
}
|
||||
|
||||
/**
|
||||
* Build db-specific report
|
||||
* @access private
|
||||
*/
|
||||
function _sql_report($mode, $query = '')
|
||||
protected function _sql_report($mode, $query = '')
|
||||
{
|
||||
switch ($mode)
|
||||
{
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue