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-rw-r--r--src/SemanticScuttle/db/sqlite.php387
1 files changed, 387 insertions, 0 deletions
diff --git a/src/SemanticScuttle/db/sqlite.php b/src/SemanticScuttle/db/sqlite.php
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+++ b/src/SemanticScuttle/db/sqlite.php
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+<?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";
+ }
+ $this->sql_report .= "<tr>\n<td>" . implode("&nbsp;</td>\n<td>", array_values($row)) . "&nbsp;</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
+
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 23:23:56 +0000