<?php /** * * @package dbal_sqlite * @version $Id: sqlite.php,v 1.2 2005/06/10 08:52:03 devalley Exp $ * @copyright (c) 2005 phpBB Group * @license http://opensource.org/licenses/gpl-license.php GNU Public License * */ /** * @ignore */ if (!defined("SQL_LAYER")) { define("SQL_LAYER","sqlite"); /** * @package dbal_sqlite * Sqlite Database Abstraction Layer */ class sql_db { var $db_connect_id; var $query_result; var $return_on_error = false; var $transaction = false; var $sql_report = ''; var $sql_time = 0; var $num_queries = 0; var $open_queries = array(); function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port, $persistency = false) { $this->persistency = $persistency; $this->user = $sqluser; $this->server = $sqlserver . (($port) ? ':' . $port : ''); $this->dbname = $database; $this->db_connect_id = ($this->persistency) ? @sqlite_popen($this->server, 0, $error) : @sqlite_open($this->server, 0, $error); return ($this->db_connect_id) ? true : $error; } // Other base methods function sql_close() { if (!$this->db_connect_id) { return false; } return @sqlite_close($this->db_connect_id); } function sql_return_on_error($fail = false) { $this->return_on_error = $fail; } function sql_num_queries() { return $this->num_queries; } function sql_transaction($status = 'begin') { switch ($status) { case 'begin': $this->transaction = true; $result = @sqlite_query('BEGIN', $this->db_connect_id); break; case 'commit': $this->transaction = false; $result = @sqlite_query('COMMIT', $this->db_connect_id); break; case 'rollback': $this->transaction = false; $result = @sqlite_query('ROLLBACK', $this->db_connect_id); break; default: $result = true; } return $result; } // Base query method function sql_query($query = '', $expire_time = 0) { if ($query != '') { global $cache; $query = preg_replace('#FROM \((.*?)\)(,|[\n\t ]+?WHERE) #s', 'FROM \1\2 ', $query); if (!$expire_time || !$cache->sql_load($query, $expire_time)) { if ($expire_time) { $cache_result = true; } $this->query_result = false; $this->num_queries++; if (!empty($_GET['explain'])) { global $starttime; $curtime = explode(' ', microtime()); $curtime = $curtime[0] + $curtime[1] - $starttime; } if (!($this->query_result = @sqlite_query($query, $this->db_connect_id))) { $this->sql_error($query); } if (!empty($_GET['explain'])) { $endtime = explode(' ', microtime()); $endtime = $endtime[0] + $endtime[1] - $starttime; $this->sql_report .= "<pre>Query:\t" . htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n\t", $query)) . "\n\n"; if ($this->query_result) { $this->sql_report .= "Time before: $curtime\nTime after: $endtime\nElapsed time: <b>" . ($endtime - $curtime) . "</b>\n</pre>"; } else { $error = $this->sql_error(); $this->sql_report .= '<b>FAILED</b> - SQLite ' . $error['code'] . ': ' . htmlspecialchars($error['message']) . '<br><br><pre>'; } $this->sql_time += $endtime - $curtime; if (preg_match('#^SELECT#', $query)) { $html_table = FALSE; if ($result = @sqlite_query("EXPLAIN $query", $this->db_connect_id)) { while ($row = @sqlite_fetch_array($result, @sqlite_ASSOC)) { if (!$html_table && sizeof($row)) { $html_table = TRUE; $this->sql_report .= "<table width=100% border=1 cellpadding=2 cellspacing=1>\n"; $this->sql_report .= "<tr>\n<td><b>" . implode("</b></td>\n<td><b>", array_keys($row)) . "</b></td>\n</tr>\n"; } $this->sql_report .= "<tr>\n<td>" . implode(" </td>\n<td>", array_values($row)) . " </td>\n</tr>\n"; } } if ($html_table) { $this->sql_report .= '</table><br>'; } } $this->sql_report .= "<hr>\n"; } if (preg_match('#^SELECT#', $query)) { $this->open_queries[] = $this->query_result; } } if (!empty($cache_result)) { $cache->sql_save($query, $this->query_result); } } else { return false; } return ($this->query_result) ? $this->query_result : false; } function sql_query_limit($query, $total, $offset = 0, $expire_time = 0) { if ($query != '') { $this->query_result = false; $query .= ' LIMIT ' . ((!empty($offset)) ? $total . ' OFFSET ' . $offset : $total); return $this->sql_query($query, $expire_time); } else { return false; } } // Idea for this from Ikonboard function sql_build_array($query, $assoc_ary = false) { if (!is_array($assoc_ary)) { return false; } $fields = array(); $values = array(); if ($query == 'INSERT') { foreach ($assoc_ary as $key => $var) { $fields[] = $key; if (is_null($var)) { $values[] = 'NULL'; } elseif (is_string($var)) { $values[] = "'" . $this->sql_escape($var) . "'"; } else { $values[] = (is_bool($var)) ? intval($var) : $var; } } $query = ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')'; } else if ($query == 'UPDATE') { $values = array(); foreach ($assoc_ary as $key => $var) { if (is_null($var)) { $values[] = "$key = NULL"; } elseif (is_string($var)) { $values[] = "$key = '" . $this->sql_escape($var) . "'"; } else { $values[] = (is_bool($var)) ? "$key = " . intval($var) : "$key = $var"; } } $query = implode(', ', $values); } return $query; } // Other query methods // // NOTE :: Want to remove _ALL_ reliance on sql_numrows from core code ... // don't want this here by a middle Milestone function sql_numrows($query_id = false) { if (!$query_id) { $query_id = $this->query_result; } return ($query_id) ? @sqlite_num_rows($query_id) : false; } function sql_affectedrows() { return ($this->db_connect_id) ? @sqlite_changes($this->db_connect_id) : false; } function sql_fetchrow($query_id = 0) { global $cache; if (!$query_id) { $query_id = $this->query_result; } if ($cache->sql_exists($query_id)) { return $cache->sql_fetchrow($query_id); } return ($query_id) ? @sqlite_fetch_array($query_id, @sqlite_ASSOC) : false; } function sql_fetchrowset($query_id = 0) { if (!$query_id) { $query_id = $this->query_result; } if ($query_id) { unset($this->rowset[$query_id]); unset($this->row[$query_id]); while ($this->rowset[$query_id] = @sqlite_fetch_array($query_id, @sqlite_ASSOC)) { $result[] = $this->rowset[$query_id]; } return $result; } else { return false; } } function sql_fetchfield($field, $rownum = -1, $query_id = 0) { if (!$query_id) { $query_id = $this->query_result; } if ($query_id) { return ($rownum > -1) ? ((@sqlite_seek($query_id, $rownum)) ? @sqlite_column($query_id, $field) : false) : @sqlite_column($query_id, $field); } } function sql_rowseek($rownum, $query_id = 0) { if (!$query_id) { $query_id = $this->query_result; } return ($query_id) ? @sqlite_seek($query_id, $rownum) : false; } function sql_nextid() { return ($this->db_connect_id) ? @sqlite_last_insert_rowid($this->db_connect_id) : false; } function sql_freeresult($query_id = false) { return true; } function sql_escape($msg) { return @sqlite_escape_string(stripslashes($msg)); } function sql_error($sql = '') { if (!$this->return_on_error) { $this_page = (!empty($_SERVER['PHP_SELF'])) ? $_SERVER['PHP_SELF'] : $_ENV['PHP_SELF']; $this_page .= '&' . ((!empty($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : $_ENV['QUERY_STRING']); $message = '<u>SQL ERROR</u> [ ' . SQL_LAYER . ' ]<br /><br />' . @sqlite_error_string(@sqlite_last_error($this->db_connect_id)) . '<br /><br /><u>CALLING PAGE</u><br /><br />' . htmlspecialchars($this_page) . (($sql != '') ? '<br /><br /><u>SQL</u><br /><br />' . $sql : '') . '<br />'; if ($this->transaction) { $this->sql_transaction('rollback'); } trigger_error($message, E_USER_ERROR); } $result = array( 'message' => @sqlite_error_string(@sqlite_last_error($this->db_connect_id)), 'code' => @sqlite_last_error($this->db_connect_id) ); return $result; } } // class sql_db } // if ... define ?>