Added option to see all users on map

Added an option to see last position of each user at the same time.

helpers/position.php

@@ -202,6 +202,57 @@
       return $position;
     }
 
+    /**
+    * Get last position data from database
+    * (for all users)
+    *
+    * @return array|bool Array of uPosition positions, false on error
+    */
+    public static function getLastAllUsers() {
+      $query = "SELECT 
+                  p.id, 
+                  UNIX_TIMESTAMP(p.time) AS tstamp, 
+                  p.user_id, 
+                  p.track_id, 
+                  p.latitude, 
+                  p.longitude, 
+                  p.altitude, 
+                  p.speed, 
+                  p.bearing, 
+                  p.accuracy, 
+                  p.provider, 
+                  p.comment, 
+                  p.image_id, 
+                  u.login
+                FROM   
+                  " . self::db()->table('positions') . " p 
+                LEFT JOIN " . self::db()->table('users') . " u 
+                  ON ( p.user_id = u.id ) 
+                WHERE  p.id = (
+                        SELECT 
+                          p2.id 
+                        FROM   
+                          " . self::db()->table('positions') . " p2 
+                        WHERE  
+                          p2.user_id = p.user_id 
+                        ORDER BY 
+                          p2.time DESC, 
+                          p2.id DESC 
+                        LIMIT  1
+                )";
+
+      $result = self::db()->query($query);
+      if ($result === false) {
+        return false;
+      }
+      $positionsArr = [];
+      while ($row = $result->fetch_assoc()) {
+        $positionsArr[] = self::rowToObject($row);
+      }
+      $result->close();
+      return $positionsArr;
+    }
+
    /**
     * Get array of all positions
     *

index.php

@@ -150,7 +150,7 @@
             <input id="latest" type="checkbox" onchange="toggleLatest();"> <?= $lang["latest"] ?><br>
             <input type="checkbox" onchange="autoReload();"> <?= $lang["autoreload"] ?> (<a href="javascript:void(0);" onclick="setTime();"><span id="auto"><?= uConfig::$interval ?></span></a> s)<br>
           </form>
-          <a href="javascript:void(0);" onclick="loadTrack(userid, trackid, 0);"> <?= $lang["reload"] ?></a><br>
+          <a href="javascript:void(0);" onclick="reload(userid, trackid);"> <?= $lang["reload"] ?></a><br>
         </div>
 
         <div id="summary"></div>

js/main.js

@@ -134,6 +134,16 @@ function getXHR() {
   return xmlhttp;
 }
 
+function reload(userid, trackid){
+  var usersSelect = document.getElementsByName('user')[0];
+  if (usersSelect[usersSelect.selectedIndex].text == lang['allusers']) {
+      loadLastPositionAllUsers();
+    }
+    else{
+      loadTrack(userid, trackid, 0);
+    }
+}
+
 function loadTrack(userid, trackid, update) {
   var title = document.getElementById('track').getElementsByClassName('menutitle')[0];
   if (trackid < 0) { return; }
@@ -154,11 +164,34 @@ function loadTrack(userid, trackid, update) {
       removeLoader(title);
     }
   }
-  xhr.open('GET', 'utils/getpositions.php?trackid=' + trackid + '&userid=' + userid, true);
+  xhr.open('GET', 'utils/getpositions.php?trackid=' + trackid + '&userid=' + userid + '&last=' + latest, true);
   xhr.send();
   setLoader(title);
 }
 
+function loadLastPositionAllUsers() {
+  if (latest == 1) { trackid = 0; }
+  var xhr = getXHR();
+  xhr.onreadystatechange = function () {
+    if (xhr.readyState == 4) {
+      if (xhr.status == 200) {
+        clearMap();
+        var xml = xhr.responseXML;
+        var positions = xml.getElementsByTagName('position');
+        var posLen = positions.length;
+        for (var i = 0; i < posLen; i++) {
+          var p = parsePosition(positions[i], i);
+          // set marker
+          setMarker(p, i, posLen);
+        }
+      }
+      xhr = null;
+    }
+  }
+  xhr.open('GET', 'utils/getpositions.php?trackid=' + trackid + '&userid=' + userid + '&last=' + latest, true);
+  xhr.send();
+}
+
 function parsePosition(p, id) {
   // read data
   var latitude = parseFloat(getNode(p, 'latitude'));
@@ -231,6 +264,15 @@ function getPopupHtml(p, i, count) {
       '<img class="icon" alt="' + lang['tdistance'] + '" title="' + lang['tdistance'] + '" src="images/distance_blue.svg"> ' +
       (p.totalMeters.toKm() * factor_km).toFixed(2) + ' ' + unit_km + '<br>' + '</div>';
   }
+  if (p.username == null){
+    p.username = lang["nousername"];
+  }
+  if (p.trackname == null){
+    p.trackname = lang["notrackname"];
+  }
+  if (p.comments == null){
+    p.comments = lang["nocomment"];
+  }
   var popup =
     '<div id="popup">' +
     '<div id="pheader">' +
@@ -367,13 +409,25 @@ Number.prototype.toKmH = function() {
 
 // negate value
 function toggleLatest() {
+  var usersSelect = document.getElementsByName('user')[0];
   if (latest == 0) {
+    if (usersSelect.options[usersSelect.length-1].text != lang['allusers']){
+      var option = document.createElement("option");
+      option.text = lang['allusers'];
+      if (usersSelect.length >= 2){
+        usersSelect.add(option);
+      }
+    }
     latest = 1;
     loadTrack(userid, 0, 1);
   }
   else {
+    if (usersSelect.options[usersSelect.length-1].text == lang['allusers']){
+      usersSelect.remove(usersSelect.length-1);
+    }
     latest = 0;
     loadTrack(userid, trackid, 1);
+
   }
 }
 
@@ -388,15 +442,26 @@ function selectTrack(f) {
     trackid = 0;
   }
   document.getElementById('latest').checked = false;
+  var usersSelect = document.getElementsByName('user')[0];
   if (latest == 1) { toggleLatest(); }
   loadTrack(userid, trackid, 1);
 }
 
 function selectUser(f) {
   userid = f.options[f.selectedIndex].value;
+  
+  if (f.options[f.selectedIndex].text == lang['allusers']){
+    var trackSelect = document.getElementsByName('track')[0];
+    var length = trackSelect.options.length;
+    for (i = 0; i < length; i++) {
+      trackSelect.options[i] = null;
+    }
+    loadLastPositionAllUsers();
+  }
+  else{
     document.getElementById('latest').checked = false;
-  if (latest == 1) { toggleLatest(); }
     getTracks(userid);
+  }
 }
 
 function getTracks(userid, trackid) {
@@ -452,8 +517,14 @@ function clearOptions(el) {
 function autoReload() {
   if (live == 0) {
     live = 1;
+    var usersSelect = document.getElementsByName('user')[0];
+    if (usersSelect[usersSelect.selectedIndex].text == lang['allusers']) {
+      auto = setInterval(function () { loadLastPositionAllUsers(); }, interval * 1000);
+    }
+    else{
       auto = setInterval(function () { loadTrack(userid, trackid, 0); }, interval * 1000);
     }
+  }
   else {
     live = 0;
     clearInterval(auto);

lang/en.php

@@ -121,4 +121,9 @@ $lang["iparsefailure"] = "Parsing failed";
 $lang["idatafailure"] = "No track data in imported file";
 $lang["isizefailure"] = "The uploaded file size should not exceed %d bytes"; // substitutes number of bytes
 $lang["imultiple"] = "Notice, multiple tracks imported (%d)"; // substitutes number of imported tracks
+$lang["allusers"] = "All Users";
+$lang["notrackname"] = "No Track";
+$lang["nousername"] = "No User";
+$lang["nocomment"] = "No Comment";
+
 ?>

utils/getpositions.php

@@ -25,6 +25,7 @@ $auth = new uAuth();
 
 $userId = uUtils::getInt('userid');
 $trackId = uUtils::getInt('trackid');
+$last = uUtils::getInt('last');
 
 $positionsArr = [];
 if ($userId) {
@@ -42,6 +43,11 @@ if ($userId) {
     }
   }
 }
+else{
+  if ($last) {
+    $positionsArr = uPosition::getLastAllUsers();
+  }
+}
 
 header("Content-type: text/xml");
 $xml = new XMLWriter();