2 /* Copyright (c) 2009 Arnaud Renevier, Inc, published under the modified BSD
5 require_once ("./inc/db/anydb.php");
7 class mysqlConnection implements anydbConnection {
11 public function connect ($host, $user, $pwd, $dbname, $dbprefix) {
12 if (!function_exists ("mysql_connect")) {
13 throw new Exception (anydbConnection::err_driver_unavailable);
15 if ($this->link) { // connection has already been opened
18 $this->link = @mysql_connect ($host,$user,$pwd,true);
20 throw new Exception (anydbConnection::err_connection);
22 if (!mysql_select_db ($dbname, $this->link)) {
23 throw new Exception (anydbConnection::err_unknown_database);
25 $this->dbprefix = $dbprefix;
28 public function users_table_exists () {
29 return $this->_tblexists ("users");
31 public function create_users_table ($error_if_exists) {
32 $query = sprintf ("CREATE TABLE " .
33 ($error_if_exists ? " " : "IF NOT EXISTS ") .
35 name VARCHAR(255) NOT NULL, pwd CHAR(32),
36 PRIMARY KEY (name));", $this->dbprefix);
37 $this->_execute_query ($query);
40 public function items_table_exists () {
41 return $this->_tblexists ("items");
43 public function create_items_table ($error_if_exists) {
44 $query = sprintf ("CREATE TABLE " .
45 ($error_if_exists ? " " : "IF NOT EXISTS ") .
47 id MEDIUMINT NOT NULL AUTO_INCREMENT,
55 );", $this->dbprefix);
56 $this->_execute_query ($query);
59 public function setpwd ($user_name, $pwd) {
60 $usrname_escaped = mysql_real_escape_string ($user_name);
61 $query = sprintf ("SELECT COUNT(*) FROM %susers WHERE name LIKE '%s';",
62 $this->dbprefix, $usrname_escaped);
63 $res = mysql_fetch_array ($this->_execute_query ($query), MYSQL_NUM);
65 $query = sprintf ("UPDATE %susers SET pwd='%s' WHERE name like '%s';",
66 $this->dbprefix, md5 ($pwd), $usrname_escaped);
68 $query = sprintf ("INSERT INTO %susers VALUES ('%s', '%s');",
69 $this->dbprefix, $usrname_escaped, md5 ($pwd));
71 $this->_execute_query ($query);
74 public function checkpwdmd5 ($user_name, $pwd_md5) {
75 $query = sprintf ("SELECT COUNT(*) FROM %susers WHERE name LIKE '%s'
78 mysql_real_escape_string ($user_name),
79 mysql_real_escape_string ($pwd_md5));
80 $res = mysql_fetch_array ($this->_execute_query ($query), MYSQL_NUM);
88 public function save_feature ($feature) {
91 } catch (Exception $e) {}
93 $query = sprintf ("UPDATE %sitems SET
97 location=GeomFromText('POINT(%s %s)')
100 mysql_real_escape_string ($feature->imgpath),
101 mysql_real_escape_string ($feature->title),
102 mysql_real_escape_string ($feature->description),
106 $this->_execute_query ($query);
109 $query = sprintf ("INSERT INTO %sitems
110 (imgpath, title, description, location, date, user)
111 VALUES ('%s', '%s', '%s',
112 GeomFromText('POINT(%s %s)'), NOW(), 'admin')",
114 mysql_real_escape_string ($feature->imgpath),
115 mysql_real_escape_string ($feature->title),
116 mysql_real_escape_string ($feature->description),
121 $this->_execute_query ($query);
122 $id = mysql_insert_id ();
123 return new feature ($id, $feature->lon, $feature->lat,
124 $feature->imgpath, $feature->title,
125 $feature->description);
129 public function delete_feature ($feature) {
130 $query = sprintf ("DELETE from %sitems WHERE id = '%s'",
132 mysql_real_escape_string ($feature->id));
133 $this->_execute_query ($query);
137 public function getfeature ($id) {
138 $query = sprintf ("SELECT id, imgpath, title, description, AsText(location)
139 AS location FROM %sitems WHERE id = '%s';",
140 $this->dbprefix, mysql_real_escape_string ($id));
141 $row = mysql_fetch_assoc ($this->_execute_query ($query));
142 if ($row === false) {
145 return $this->_feature_frow_row ($row);
148 public function listfeatures () {
149 $query = sprintf ("SELECT id, imgpath, title, description, AsText(location)
150 AS location FROM %sitems;",
153 $features = array ();
154 $res = $this->_execute_query ($query);
155 while ($row = mysql_fetch_assoc ($res)) {
156 $feature = $this->_feature_frow_row ($row);
157 if (isset ($feature)) {
158 $features[] = $feature;
164 public function imgpath_exists ($imgpath) {
165 $query = sprintf ("SELECT COUNT(*) FROM %sitems WHERE imgpath LIKE '%s';",
166 $this->dbprefix, mysql_real_escape_string ($imgpath));
167 $res = mysql_fetch_array ($this->_execute_query ($query), MYSQL_NUM);
168 return ($res [0] >= 1) ? true : false;
171 public function mbr () {
178 return array ($minlon, $minlat, $maxlon, $maxlat);
181 $features = $this->listfeatures ();
182 } catch (Exception $e) {
183 return array ($minlon, $minlat, $maxlon, $maxlat);
186 if (count ($features) == 0) {
187 return array ($minlon, $minlat, $maxlon, $maxlat);
188 } else if (count ($features) == 1) {
189 // in case there's only one feature, we show an area of at least
191 $feature = $features [0];
193 $minlon = max ($feature->lon - 2, -180);
194 $maxlon = min ($feature->lon + 2, 180);
195 $minlat = max ($feature->lat - 2, -90);
196 $maxlat = min ($feature->lat + 2, 90);
198 return array ($minlon, $minlat, $maxlon, $maxlat);
200 foreach ($features as $feature) {
201 $minlon = min ($feature->lon, $minlon);
202 $minlat = min ($feature->lat, $minlat);
203 $maxlon = max ($feature->lon, $maxlon);
204 $maxlat = max ($feature->lat, $maxlat);
207 return array ($minlon, $minlat, $maxlon, $maxlat);
211 public function getdbname () {
215 private function _tblexists ($tblname) {
216 $query = sprintf ("SHOW TABLES LIKE '%s%s';",
217 $this->dbprefix, $tblname);
218 return mysql_num_rows ($this->_execute_query ($query)) == 1;
221 private function _feature_frow_row ($row) {
222 // XXX: should I remove invalid features from database ?
223 if (!preg_match ('/^POINT\(([0-9\-\.]+)\s+([0-9\-\.]+)\)$/',
224 $row ["location"], $matches)) {
230 $feature = new feature ($row ["id"], $lon, $lat, $row ["imgpath"],
231 $row ["title"], $row ["description"]);
232 } catch (Exception $e) {
238 private function _execute_query ($query) {
239 if (!function_exists ("mysql_query")) {
240 throw new Exception (anydbConnection::err_driver_unavailable);
243 throw new Exception (anydbConnection::err_query);
245 $res = mysql_query ($query, $this->link);
247 throw new Exception (anydbConnection::err_query);
253 $connection = new mysqlConnection();