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authorNils Adermann <naderman@naderman.de>2013-07-14 01:32:34 -0400
committerNils Adermann <naderman@naderman.de>2013-07-14 01:32:34 -0400
commit7030578bbe9e11c18b5becaf8b06e670e3c2e3cd (patch)
treea260c846cb47713e72de11cfb9803d981ea6faaf /phpBB/phpbb/db/driver/postgres.php
parent4186c05bb4b97374392031a10b796e77b857afaf (diff)
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[ticket/11698] Moving all autoloadable files to phpbb/
PHPBB3-11698
Diffstat (limited to 'phpBB/phpbb/db/driver/postgres.php')
-rw-r--r--phpBB/phpbb/db/driver/postgres.php491
1 files changed, 491 insertions, 0 deletions
diff --git a/phpBB/phpbb/db/driver/postgres.php b/phpBB/phpbb/db/driver/postgres.php
new file mode 100644
index 0000000000..14854d179d
--- /dev/null
+++ b/phpBB/phpbb/db/driver/postgres.php
@@ -0,0 +1,491 @@
+<?php
+/**
+*
+* @package dbal
+* @copyright (c) 2005 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+ exit;
+}
+
+/**
+* PostgreSQL Database Abstraction Layer
+* Minimum Requirement is Version 7.3+
+* @package dbal
+*/
+class phpbb_db_driver_postgres extends phpbb_db_driver
+{
+ var $last_query_text = '';
+ var $connect_error = '';
+
+ /**
+ * Connect to server
+ */
+ function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false, $new_link = false)
+ {
+ $connect_string = '';
+
+ if ($sqluser)
+ {
+ $connect_string .= "user=$sqluser ";
+ }
+
+ if ($sqlpassword)
+ {
+ $connect_string .= "password=$sqlpassword ";
+ }
+
+ if ($sqlserver)
+ {
+ // $sqlserver can carry a port separated by : for compatibility reasons
+ // If $sqlserver has more than one : it's probably an IPv6 address.
+ // In this case we only allow passing a port via the $port variable.
+ if (substr_count($sqlserver, ':') === 1)
+ {
+ list($sqlserver, $port) = explode(':', $sqlserver);
+ }
+
+ if ($sqlserver !== 'localhost')
+ {
+ $connect_string .= "host=$sqlserver ";
+ }
+
+ if ($port)
+ {
+ $connect_string .= "port=$port ";
+ }
+ }
+
+ $schema = '';
+
+ if ($database)
+ {
+ $this->dbname = $database;
+ if (strpos($database, '.') !== false)
+ {
+ list($database, $schema) = explode('.', $database);
+ }
+ $connect_string .= "dbname=$database";
+ }
+
+ $this->persistency = $persistency;
+
+ if ($this->persistency)
+ {
+ if (!function_exists('pg_pconnect'))
+ {
+ $this->connect_error = 'pg_pconnect function does not exist, is pgsql extension installed?';
+ return $this->sql_error('');
+ }
+ $collector = new phpbb_error_collector;
+ $collector->install();
+ $this->db_connect_id = (!$new_link) ? @pg_pconnect($connect_string) : @pg_pconnect($connect_string, PGSQL_CONNECT_FORCE_NEW);
+ }
+ else
+ {
+ if (!function_exists('pg_connect'))
+ {
+ $this->connect_error = 'pg_connect function does not exist, is pgsql extension installed?';
+ return $this->sql_error('');
+ }
+ $collector = new phpbb_error_collector;
+ $collector->install();
+ $this->db_connect_id = (!$new_link) ? @pg_connect($connect_string) : @pg_connect($connect_string, PGSQL_CONNECT_FORCE_NEW);
+ }
+
+ $collector->uninstall();
+
+ if ($this->db_connect_id)
+ {
+ if (version_compare($this->sql_server_info(true), '8.2', '>='))
+ {
+ $this->multi_insert = true;
+ }
+
+ if ($schema !== '')
+ {
+ @pg_query($this->db_connect_id, 'SET search_path TO ' . $schema);
+ }
+ return $this->db_connect_id;
+ }
+
+ $this->connect_error = $collector->format_errors();
+ return $this->sql_error('');
+ }
+
+ /**
+ * Version information about used database
+ * @param bool $raw if true, only return the fetched sql_server_version
+ * @param bool $use_cache If true, it is safe to retrieve the value from the cache
+ * @return string sql server version
+ */
+ function sql_server_info($raw = false, $use_cache = true)
+ {
+ global $cache;
+
+ if (!$use_cache || empty($cache) || ($this->sql_server_version = $cache->get('pgsql_version')) === false)
+ {
+ $query_id = @pg_query($this->db_connect_id, 'SELECT VERSION() AS version');
+ $row = @pg_fetch_assoc($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', $this->sql_server_version);
+ }
+ }
+
+ return ($raw) ? $this->sql_server_version : 'PostgreSQL ' . $this->sql_server_version;
+ }
+
+ /**
+ * SQL Transaction
+ * @access private
+ */
+ function _sql_transaction($status = 'begin')
+ {
+ switch ($status)
+ {
+ case 'begin':
+ return @pg_query($this->db_connect_id, 'BEGIN');
+ break;
+
+ case 'commit':
+ return @pg_query($this->db_connect_id, 'COMMIT');
+ break;
+
+ case 'rollback':
+ return @pg_query($this->db_connect_id, 'ROLLBACK');
+ break;
+ }
+
+ return true;
+ }
+
+ /**
+ * Base query method
+ *
+ * @param string $query Contains the SQL query which shall be executed
+ * @param int $cache_ttl Either 0 to avoid caching or the time in seconds which the result shall be kept in cache
+ * @return mixed When casted to bool the returned value returns true on success and false on failure
+ *
+ * @access public
+ */
+ function sql_query($query = '', $cache_ttl = 0)
+ {
+ if ($query != '')
+ {
+ global $cache;
+
+ // EXPLAIN only in extra debug mode
+ if (defined('DEBUG'))
+ {
+ $this->sql_report('start', $query);
+ }
+
+ $this->last_query_text = $query;
+ $this->query_result = ($cache && $cache_ttl) ? $cache->sql_load($query) : false;
+ $this->sql_add_num_queries($this->query_result);
+
+ if ($this->query_result === false)
+ {
+ if (($this->query_result = @pg_query($this->db_connect_id, $query)) === false)
+ {
+ $this->sql_error($query);
+ }
+
+ if (defined('DEBUG'))
+ {
+ $this->sql_report('stop', $query);
+ }
+
+ if ($cache && $cache_ttl)
+ {
+ $this->open_queries[(int) $this->query_result] = $this->query_result;
+ $this->query_result = $cache->sql_save($this, $query, $this->query_result, $cache_ttl);
+ }
+ else if (strpos($query, 'SELECT') === 0 && $this->query_result)
+ {
+ $this->open_queries[(int) $this->query_result] = $this->query_result;
+ }
+ }
+ else if (defined('DEBUG'))
+ {
+ $this->sql_report('fromcache', $query);
+ }
+ }
+ else
+ {
+ return false;
+ }
+
+ return $this->query_result;
+ }
+
+ /**
+ * Build db-specific query data
+ * @access private
+ */
+ function _sql_custom_build($stage, $data)
+ {
+ return $data;
+ }
+
+ /**
+ * Build LIMIT query
+ */
+ function _sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0)
+ {
+ $this->query_result = false;
+
+ // if $total is set to 0 we do not want to limit the number of rows
+ if ($total == 0)
+ {
+ $total = 'ALL';
+ }
+
+ $query .= "\n LIMIT $total OFFSET $offset";
+
+ return $this->sql_query($query, $cache_ttl);
+ }
+
+ /**
+ * Return number of affected rows
+ */
+ function sql_affectedrows()
+ {
+ return ($this->query_result) ? @pg_affected_rows($this->query_result) : false;
+ }
+
+ /**
+ * Fetch current row
+ */
+ function sql_fetchrow($query_id = false)
+ {
+ global $cache;
+
+ if ($query_id === false)
+ {
+ $query_id = $this->query_result;
+ }
+
+ if ($cache && $cache->sql_exists($query_id))
+ {
+ return $cache->sql_fetchrow($query_id);
+ }
+
+ return ($query_id !== false) ? @pg_fetch_assoc($query_id, null) : false;
+ }
+
+ /**
+ * Seek to given row number
+ * rownum is zero-based
+ */
+ function sql_rowseek($rownum, &$query_id)
+ {
+ global $cache;
+
+ if ($query_id === false)
+ {
+ $query_id = $this->query_result;
+ }
+
+ if ($cache && $cache->sql_exists($query_id))
+ {
+ return $cache->sql_rowseek($rownum, $query_id);
+ }
+
+ return ($query_id !== false) ? @pg_result_seek($query_id, $rownum) : false;
+ }
+
+ /**
+ * Get last inserted id after insert statement
+ */
+ function sql_nextid()
+ {
+ $query_id = $this->query_result;
+
+ if ($query_id !== false && $this->last_query_text != '')
+ {
+ if (preg_match("/^INSERT[\t\n ]+INTO[\t\n ]+([a-z0-9\_\-]+)/is", $this->last_query_text, $tablename))
+ {
+ $query = "SELECT currval('" . $tablename[1] . "_seq') AS last_value";
+ $temp_q_id = @pg_query($this->db_connect_id, $query);
+
+ if (!$temp_q_id)
+ {
+ return false;
+ }
+
+ $temp_result = @pg_fetch_assoc($temp_q_id, NULL);
+ @pg_free_result($query_id);
+
+ return ($temp_result) ? $temp_result['last_value'] : false;
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Free sql result
+ */
+ function sql_freeresult($query_id = false)
+ {
+ global $cache;
+
+ if ($query_id === false)
+ {
+ $query_id = $this->query_result;
+ }
+
+ if ($cache && $cache->sql_exists($query_id))
+ {
+ return $cache->sql_freeresult($query_id);
+ }
+
+ if (isset($this->open_queries[(int) $query_id]))
+ {
+ unset($this->open_queries[(int) $query_id]);
+ return @pg_free_result($query_id);
+ }
+
+ return false;
+ }
+
+ /**
+ * Escape string used in sql query
+ * Note: Do not use for bytea values if we may use them at a later stage
+ */
+ function sql_escape($msg)
+ {
+ return @pg_escape_string($msg);
+ }
+
+ /**
+ * Build LIKE expression
+ * @access private
+ */
+ function _sql_like_expression($expression)
+ {
+ return $expression;
+ }
+
+ /**
+ * @inheritdoc
+ */
+ function cast_expr_to_bigint($expression)
+ {
+ return 'CAST(' . $expression . ' as DECIMAL(255, 0))';
+ }
+
+ /**
+ * @inheritdoc
+ */
+ function cast_expr_to_string($expression)
+ {
+ return 'CAST(' . $expression . ' as VARCHAR(255))';
+ }
+
+ /**
+ * return sql error array
+ * @access private
+ */
+ function _sql_error()
+ {
+ // pg_last_error only works when there is an established connection.
+ // Connection errors have to be tracked by us manually.
+ if ($this->db_connect_id)
+ {
+ $message = @pg_last_error($this->db_connect_id);
+ }
+ else
+ {
+ $message = $this->connect_error;
+ }
+
+ return array(
+ 'message' => $message,
+ 'code' => ''
+ );
+ }
+
+ /**
+ * Close sql connection
+ * @access private
+ */
+ function _sql_close()
+ {
+ return @pg_close($this->db_connect_id);
+ }
+
+ /**
+ * Build db-specific report
+ * @access private
+ */
+ function _sql_report($mode, $query = '')
+ {
+ switch ($mode)
+ {
+ case 'start':
+
+ $explain_query = $query;
+ if (preg_match('/UPDATE ([a-z0-9_]+).*?WHERE(.*)/s', $query, $m))
+ {
+ $explain_query = 'SELECT * FROM ' . $m[1] . ' WHERE ' . $m[2];
+ }
+ else if (preg_match('/DELETE FROM ([a-z0-9_]+).*?WHERE(.*)/s', $query, $m))
+ {
+ $explain_query = 'SELECT * FROM ' . $m[1] . ' WHERE ' . $m[2];
+ }
+
+ if (preg_match('/^SELECT/', $explain_query))
+ {
+ $html_table = false;
+
+ if ($result = @pg_query($this->db_connect_id, "EXPLAIN $explain_query"))
+ {
+ while ($row = @pg_fetch_assoc($result, NULL))
+ {
+ $html_table = $this->sql_report('add_select_row', $query, $html_table, $row);
+ }
+ }
+ @pg_free_result($result);
+
+ if ($html_table)
+ {
+ $this->html_hold .= '</table>';
+ }
+ }
+
+ break;
+
+ case 'fromcache':
+ $endtime = explode(' ', microtime());
+ $endtime = $endtime[0] + $endtime[1];
+
+ $result = @pg_query($this->db_connect_id, $query);
+ while ($void = @pg_fetch_assoc($result, NULL))
+ {
+ // Take the time spent on parsing rows into account
+ }
+ @pg_free_result($result);
+
+ $splittime = explode(' ', microtime());
+ $splittime = $splittime[0] + $splittime[1];
+
+ $this->sql_report('record_fromcache', $query, $endtime, $splittime);
+
+ break;
+ }
+ }
+}
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