d582054c77
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@1 b3834d28-1941-0410-a4f8-b48e95affb8f
387 lines
No EOL
8.3 KiB
PHP
387 lines
No EOL
8.3 KiB
PHP
<?php
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/**
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*
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* @package dbal_sqlite
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* @version $Id: sqlite.php,v 1.2 2005/06/10 08:52:03 devalley Exp $
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* @copyright (c) 2005 phpBB Group
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* @license http://opensource.org/licenses/gpl-license.php GNU Public License
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*
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*/
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/**
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* @ignore
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*/
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if (!defined("SQL_LAYER"))
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{
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define("SQL_LAYER","sqlite");
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/**
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* @package dbal_sqlite
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* Sqlite Database Abstraction Layer
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*/
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class sql_db
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{
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var $db_connect_id;
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var $query_result;
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var $return_on_error = false;
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var $transaction = false;
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var $sql_report = '';
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var $sql_time = 0;
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var $num_queries = 0;
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var $open_queries = array();
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function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port, $persistency = false)
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{
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$this->persistency = $persistency;
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$this->user = $sqluser;
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$this->server = $sqlserver . (($port) ? ':' . $port : '');
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$this->dbname = $database;
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$this->db_connect_id = ($this->persistency) ? @sqlite_popen($this->server, 0, $error) : @sqlite_open($this->server, 0, $error);
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return ($this->db_connect_id) ? true : $error;
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}
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// Other base methods
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function sql_close()
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{
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if (!$this->db_connect_id)
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{
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return false;
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}
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return @sqlite_close($this->db_connect_id);
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}
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function sql_return_on_error($fail = false)
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{
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$this->return_on_error = $fail;
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}
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function sql_num_queries()
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{
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return $this->num_queries;
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}
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function sql_transaction($status = 'begin')
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{
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switch ($status)
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{
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case 'begin':
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$this->transaction = true;
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$result = @sqlite_query('BEGIN', $this->db_connect_id);
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break;
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case 'commit':
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$this->transaction = false;
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$result = @sqlite_query('COMMIT', $this->db_connect_id);
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break;
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case 'rollback':
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$this->transaction = false;
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$result = @sqlite_query('ROLLBACK', $this->db_connect_id);
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break;
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default:
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$result = true;
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}
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return $result;
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}
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// Base query method
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function sql_query($query = '', $expire_time = 0)
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{
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if ($query != '')
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{
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global $cache;
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$query = preg_replace('#FROM \((.*?)\)(,|[\n\t ]+?WHERE) #s', 'FROM \1\2 ', $query);
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if (!$expire_time || !$cache->sql_load($query, $expire_time))
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{
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if ($expire_time)
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{
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$cache_result = true;
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}
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$this->query_result = false;
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$this->num_queries++;
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if (!empty($_GET['explain']))
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{
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global $starttime;
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$curtime = explode(' ', microtime());
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$curtime = $curtime[0] + $curtime[1] - $starttime;
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}
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if (!($this->query_result = @sqlite_query($query, $this->db_connect_id)))
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{
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$this->sql_error($query);
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}
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if (!empty($_GET['explain']))
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{
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$endtime = explode(' ', microtime());
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$endtime = $endtime[0] + $endtime[1] - $starttime;
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$this->sql_report .= "<pre>Query:\t" . htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n\t", $query)) . "\n\n";
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if ($this->query_result)
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{
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$this->sql_report .= "Time before: $curtime\nTime after: $endtime\nElapsed time: <b>" . ($endtime - $curtime) . "</b>\n</pre>";
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}
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else
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{
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$error = $this->sql_error();
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$this->sql_report .= '<b>FAILED</b> - SQLite ' . $error['code'] . ': ' . htmlspecialchars($error['message']) . '<br><br><pre>';
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}
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$this->sql_time += $endtime - $curtime;
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if (preg_match('#^SELECT#', $query))
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{
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$html_table = FALSE;
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if ($result = @sqlite_query("EXPLAIN $query", $this->db_connect_id))
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{
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while ($row = @sqlite_fetch_array($result, @sqlite_ASSOC))
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{
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if (!$html_table && sizeof($row))
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{
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$html_table = TRUE;
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$this->sql_report .= "<table width=100% border=1 cellpadding=2 cellspacing=1>\n";
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$this->sql_report .= "<tr>\n<td><b>" . implode("</b></td>\n<td><b>", array_keys($row)) . "</b></td>\n</tr>\n";
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}
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$this->sql_report .= "<tr>\n<td>" . implode(" </td>\n<td>", array_values($row)) . " </td>\n</tr>\n";
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}
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}
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if ($html_table)
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{
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$this->sql_report .= '</table><br>';
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}
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}
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$this->sql_report .= "<hr>\n";
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}
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if (preg_match('#^SELECT#', $query))
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{
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$this->open_queries[] = $this->query_result;
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}
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}
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if (!empty($cache_result))
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{
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$cache->sql_save($query, $this->query_result);
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}
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}
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else
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{
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return false;
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}
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return ($this->query_result) ? $this->query_result : false;
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}
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function sql_query_limit($query, $total, $offset = 0, $expire_time = 0)
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{
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if ($query != '')
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{
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$this->query_result = false;
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$query .= ' LIMIT ' . ((!empty($offset)) ? $total . ' OFFSET ' . $offset : $total);
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return $this->sql_query($query, $expire_time);
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}
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else
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{
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return false;
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}
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}
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// Idea for this from Ikonboard
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function sql_build_array($query, $assoc_ary = false)
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{
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if (!is_array($assoc_ary))
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{
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return false;
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}
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$fields = array();
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$values = array();
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if ($query == 'INSERT')
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{
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foreach ($assoc_ary as $key => $var)
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{
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$fields[] = $key;
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if (is_null($var))
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{
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$values[] = 'NULL';
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}
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elseif (is_string($var))
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{
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$values[] = "'" . $this->sql_escape($var) . "'";
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}
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else
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{
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$values[] = (is_bool($var)) ? intval($var) : $var;
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}
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}
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$query = ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')';
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}
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else if ($query == 'UPDATE')
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{
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$values = array();
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foreach ($assoc_ary as $key => $var)
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{
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if (is_null($var))
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{
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$values[] = "$key = NULL";
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}
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elseif (is_string($var))
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{
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$values[] = "$key = '" . $this->sql_escape($var) . "'";
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}
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else
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{
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$values[] = (is_bool($var)) ? "$key = " . intval($var) : "$key = $var";
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}
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}
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$query = implode(', ', $values);
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}
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return $query;
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}
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// Other query methods
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//
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// NOTE :: Want to remove _ALL_ reliance on sql_numrows from core code ...
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// don't want this here by a middle Milestone
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function sql_numrows($query_id = false)
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{
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if (!$query_id)
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{
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$query_id = $this->query_result;
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}
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return ($query_id) ? @sqlite_num_rows($query_id) : false;
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}
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function sql_affectedrows()
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{
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return ($this->db_connect_id) ? @sqlite_changes($this->db_connect_id) : false;
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}
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function sql_fetchrow($query_id = 0)
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{
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global $cache;
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if (!$query_id)
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{
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$query_id = $this->query_result;
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}
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if ($cache->sql_exists($query_id))
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{
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return $cache->sql_fetchrow($query_id);
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}
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return ($query_id) ? @sqlite_fetch_array($query_id, @sqlite_ASSOC) : false;
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}
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function sql_fetchrowset($query_id = 0)
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{
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if (!$query_id)
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{
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$query_id = $this->query_result;
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}
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if ($query_id)
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{
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unset($this->rowset[$query_id]);
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unset($this->row[$query_id]);
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while ($this->rowset[$query_id] = @sqlite_fetch_array($query_id, @sqlite_ASSOC))
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{
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$result[] = $this->rowset[$query_id];
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}
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return $result;
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}
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else
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{
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return false;
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}
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}
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function sql_fetchfield($field, $rownum = -1, $query_id = 0)
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{
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if (!$query_id)
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{
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$query_id = $this->query_result;
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}
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if ($query_id)
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{
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return ($rownum > -1) ? ((@sqlite_seek($query_id, $rownum)) ? @sqlite_column($query_id, $field) : false) : @sqlite_column($query_id, $field);
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}
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}
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function sql_rowseek($rownum, $query_id = 0)
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{
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if (!$query_id)
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{
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$query_id = $this->query_result;
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}
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return ($query_id) ? @sqlite_seek($query_id, $rownum) : false;
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}
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function sql_nextid()
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{
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return ($this->db_connect_id) ? @sqlite_last_insert_rowid($this->db_connect_id) : false;
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}
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function sql_freeresult($query_id = false)
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{
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return true;
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}
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function sql_escape($msg)
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{
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return @sqlite_escape_string(stripslashes($msg));
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}
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function sql_error($sql = '')
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{
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if (!$this->return_on_error)
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{
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$this_page = (!empty($_SERVER['PHP_SELF'])) ? $_SERVER['PHP_SELF'] : $_ENV['PHP_SELF'];
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$this_page .= '&' . ((!empty($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : $_ENV['QUERY_STRING']);
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$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 />' . $sql : '') . '<br />';
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if ($this->transaction)
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{
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$this->sql_transaction('rollback');
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}
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trigger_error($message, E_USER_ERROR);
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}
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$result = array(
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'message' => @sqlite_error_string(@sqlite_last_error($this->db_connect_id)),
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'code' => @sqlite_last_error($this->db_connect_id)
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);
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return $result;
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}
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} // class sql_db
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} // if ... define
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?>
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