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<?php
# Movable Type (r) Open Source (C) 2001-2008 Six Apart, Ltd.
# This program is distributed under the terms of the
# GNU General Public License, version 2.
#
# $Id: mtdb_sqlite.php 1997 2008-04-19 08:10:11Z takayama $
if (!class_exists("ezsql"))
require_once("ezsql".DIRECTORY_SEPARATOR."ezsql_sqlite.php");
require_once("mtdb_base.php");
class MTDatabase_sqlite extends MTDatabaseBase {
var $vendor = 'sqlite';
function MTDatabase_sqlite($dbuser, $dbpassword, $dbname, $dbhost, $dbport) {
parent::MTDatabaseBase($dbname);
}
function unserialize($data) {
$data = stripslashes($data); #SQLite uses addslashes for binary data
return parent::unserialize($data);
}
function &convert_fieldname($array) {
$converted = array();
foreach ($array as $key => $value) {
list ($t,$c) = explode('.', $key);
$converted[$c?$c:$t] = $value;
}
return $converted;
}
function apply_limit_sql($sql, $limit, $offset = 0) {
$limit = intval($limit);
$offset = intval($offset);
$limitStr = '';
if ($limit == -1) $limit = 0;
if ($limit)
$limitStr = 'limit ' . $limit;
if ($offset) {
$limitStr .= ' offset ' . $offset;
if (!$limit)
$limitStr = 'limit 2147483647' . $limitStr;
}
$sql = preg_replace('/<LIMIT>/', $limitStr, $sql);
return $sql;
}
function limit_by_day_sql($column, $days) {
return 'datetime(' . $column . ', \'+' .
$days . ' days\') >= date(\'now\', \'localtime\')';
}
function query_start($query)
{
// For reg expressions
$query = trim($query);
// Query was an insert, delete, update, replace
if ( preg_match("/^(insert|delete|update|replace)\s+/i",$query) )
{
return false;
}
$this->savedqueries[] = $query;
// Flush cached values..
$this->flush();
// Log how the function was called
$this->func_call = "\$db->query_start(\"$query\")";
// Keep track of the last query for debug..
$this->last_query = $query;
$this->result = @sqlite_query($query,$this->dbh);
$this->num_queries++;
// If there is an error then take note of it..
if ( !$this->result )
{
$this->print_error();
return false;
}
// =======================================================
// Take note of column info
#$i=0;
#foreach(@sqlite_fetch_field_array($handle) as $name)
#{
# $this->col_info[$i++]->name = $name;
#}
$this->last_result = array();
$this->num_rows = 0;
// If debug ALL queries
$this->trace || $this->debug_all ? $this->debug() : null ;
return true;
}
function query_fetch($output=OBJECT) {
if ( $row = sqlite_fetch_array($this->result, SQLITE_ASSOC) )
{
$row = (Object) $row;
$this->num_rows++;
if ( $output == OBJECT )
{
return $row;
}
// If the output is an associative array then return row as such..
elseif ( $output == ARRAY_A )
{
return $row ? $this->convert_fieldname(get_object_vars($row)) : null;
}
// If the output is an numerical array then return row as such..
elseif ( $output == ARRAY_N )
{
return $row ? array_values(get_object_vars($row)) : null;
}
}
return null;
}
function query_finish() {
if (isset($this->result)) {
unset($this->result);
}
}
function apply_extract_date($part, $column) {
$lowPart = strtolower($part);
if ($lowPart == 'year') {
$part = "'%Y'";
} elseif ($lowPart == 'month') {
$part = "'%m'";
} elseif ($lowPart == 'day') {
$part = "'%d'";
} else {
return null;
}
return "strftime($part, $column)";
}
}
?>
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