Major performance improvements to the Dashboard and Calendar views

* Close the PHP session for writing as early as possible in most AJAX
  calls for those views
* Reduce the number of roundtrips to the server in both the Dashboard
  and Calendar views by putting the data in our HTML response (this
  makes a massive difference)
* Eliminated a couple of unneccessary AJAX calls
* Use lazy loading in full calendar
* Fixed a bug in the week view that only occurs near the end of the
  week (date->gmdate bug!)

airtime_mvc/application/controllers/LibraryController.php

@@ -403,6 +403,7 @@ class LibraryController extends Zend_Controller_Action
 
     public function contentsFeedAction()
     {
+        session_write_close();
         $params = $this->getRequest()->getParams();
 
         # terrible name for the method below. it does not only search files.

airtime_mvc/application/controllers/ScheduleController.php

@@ -50,6 +50,13 @@ class ScheduleController extends Zend_Controller_Action
 
         $baseUrl = Application_Common_OsPath::getBaseDir();
 
+        $foo = new ScheduleController($this->getRequest(), $this->getResponse());
+        $foo->eventFeedPreloadAction();
+        //$foo->eventFeedAction();
+        $events = json_encode($foo->view->events);
+        //$timescale =
+            //$this->getRequest()->getParam("view", "week");
+
         $this->view->headScript()->appendScript(
             "var calendarPref = {};\n".
             "calendarPref.weekStart = ".Application_Model_Preference::GetWeekStartDay().";\n".
@@ -58,7 +65,7 @@ class ScheduleController extends Zend_Controller_Action
             "calendarPref.timeScale = '".Application_Model_Preference::GetCalendarTimeScale()."';\n".
             "calendarPref.timeInterval = ".Application_Model_Preference::GetCalendarTimeInterval().";\n".
             "calendarPref.weekStartDay = ".Application_Model_Preference::GetWeekStartDay().";\n".
-            "var calendarEvents = null;"
+            "var calendarEvents = $events;"
         );
 
         $this->view->headScript()->appendFile($baseUrl.'js/contextmenu/jquery.contextMenu.js?'.$CC_CONFIG['airtime_version'],'text/javascript');
@@ -116,6 +123,7 @@ class ScheduleController extends Zend_Controller_Action
 
     public function eventFeedAction()
     {
+        session_write_close();
         $service_user = new Application_Service_UserService();
         $currentUser = $service_user->getCurrentUser();
 
@@ -137,6 +145,7 @@ class ScheduleController extends Zend_Controller_Action
         $userInfo = Zend_Auth::getInstance()->getStorage()->read();
         $user = new Application_Model_User($userInfo->id);
         $editable = $user->isUserType(array(UTYPE_SUPERADMIN, UTYPE_ADMIN, UTYPE_PROGRAM_MANAGER));
+        session_write_close();
 
         $calendar_interval = Application_Model_Preference::GetCalendarTimeScale();
         if ($calendar_interval == "agendaDay") {
@@ -155,6 +164,7 @@ class ScheduleController extends Zend_Controller_Action
 
     public function getCurrentShowAction()
     {
+        session_write_close();
         $currentShow = Application_Model_Show::getCurrentShow();
         if (!empty($currentShow)) {
             $this->view->si_id = $currentShow[0]["instance_id"];
@@ -296,6 +306,7 @@ class ScheduleController extends Zend_Controller_Action
 
     public function getCurrentPlaylistAction()
     {
+        session_write_close();
         $range = Application_Model_Schedule::GetPlayOrderRangeOld();
         $show = Application_Model_Show::getCurrentShow();
 
@@ -704,6 +715,7 @@ class ScheduleController extends Zend_Controller_Action
      */
     public function setTimeScaleAction()
     {
+        session_write_close();
         Application_Model_Preference::SetCalendarTimeScale($this->_getParam('timeScale'));
     }
 

airtime_mvc/application/controllers/ShowbuilderController.php

@@ -246,6 +246,7 @@ class ShowbuilderController extends Zend_Controller_Action
     
     public function checkBuilderFeedAction()
     {
+        session_write_close();
         $request = $this->getRequest();
         $show_filter = intval($request->getParam("showFilter", 0));
         $my_shows = intval($request->getParam("myShows", 0));
@@ -265,6 +266,7 @@ class ShowbuilderController extends Zend_Controller_Action
 
     public function builderFeedAction()
     {
+        session_write_close();
     	$current_time = time();
     	
         $request = $this->getRequest();

airtime_mvc/application/controllers/UsersettingsController.php

@@ -37,6 +37,7 @@ class UsersettingsController extends Zend_Controller_Action
 
     public function setLibraryDatatableAction()
     {
+        session_write_close();
         $request = $this->getRequest();
         $settings = $request->getParam("settings");
 
@@ -45,6 +46,7 @@ class UsersettingsController extends Zend_Controller_Action
 
     public function getLibraryDatatableAction()
     {
+        session_write_close();
         $data = Application_Model_Preference::getCurrentLibraryTableSetting();
         if (!is_null($data)) {
             $this->view->settings = $data;
@@ -53,6 +55,7 @@ class UsersettingsController extends Zend_Controller_Action
 
     public function setTimelineDatatableAction()
     {
+        session_write_close();
         $request = $this->getRequest();
         $settings = $request->getParam("settings");
 
@@ -61,17 +64,11 @@ class UsersettingsController extends Zend_Controller_Action
 
     public function getTimelineDatatableAction()
     {
-        $start = microtime(true);
+        session_write_close();
-
         $data = Application_Model_Preference::getTimelineDatatableSetting();
         if (!is_null($data)) {
             $this->view->settings = $data;
         }
-
-        $end = microtime(true);
-
-        Logging::debug("getting timeline datatables info took:");
-        Logging::debug(floatval($end) - floatval($start));
     }
 
     public function remindmeAction()

airtime_mvc/application/layouts/scripts/layout.phtml

@@ -19,6 +19,23 @@ j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 })(window,document,'script','dataLayer','GTM-55N6NH');</script>
 <!-- End Google Tag Manager -->
 
+<script type="text/javascript">
+    //Awful hack to speed up loading - Embed the schedule in the response so that the dashboard
+    //doesn't have to make a separate AJAX request to get this data.
+    var schedulePreLoaded = <?php
+    require_once("ScheduleController.php");
+    $front = Zend_Controller_Front::getInstance();
+        $foo = new ScheduleController($front->getRequest(), $front->getResponse());
+        $foo->getCurrentPlaylistAction();
+        echo(json_encode($foo->view));
+ ?>;
+    parseItems(schedulePreLoaded.entries);
+    parseSourceStatus(schedulePreLoaded.source_status);
+    parseSwitchStatus(schedulePreLoaded.switch_status);
+
+
+</script>
+
 <?php echo $this->partial('partialviews/trialBox.phtml', array("is_trial"=>$this->isTrial(), "trial_remain"=> $this->trialRemaining())) ?>
 <div id="Panel">
     <div class="logo"></div>

airtime_mvc/application/models/Show.php

@@ -1446,9 +1446,9 @@ SQL;
     }
 
     public static function getStartEndCurrentWeekView() {
-        $first_day_of_calendar_week_view = mktime(0, 0, 0, date("n"), date("j"));
+        $first_day_of_calendar_week_view = mktime(0, 0, 0, gmdate("n"), gmdate("j"));
         $weekStart = Application_Model_Preference::GetWeekStartDay();
-        while (date('w', $first_day_of_calendar_week_view) != $weekStart) {
+        while (gmdate('w', $first_day_of_calendar_week_view) != $weekStart) {
             $first_day_of_calendar_week_view -= 60*60*24;
         }
         $last_day_of_calendar_view = $first_day_of_calendar_week_view + 3600*24*7;
@@ -1460,7 +1460,7 @@ SQL;
     }
 
     public static function getStartEndCurrentDayView() {
-        $today = mktime(0, 0, 0, date("n"), date("j"));
+        $today = mktime(0, 0, 0, gmdate("n"), gmdate("j"));
         $tomorrow = $today + 3600*24;
 
         $start = new DateTime("@".$today);

airtime_mvc/public/js/airtime/dashboard/dashboard.js

@@ -395,7 +395,6 @@ function getScheduleFromServer(){
                 parseSourceStatus(data.source_status);
                 parseSwitchStatus(data.switch_status);
                 showName = data.show_name;
-                setTimeout(getScheduleFromServer, serverUpdateInterval);
           }, error:function(jqXHR, textStatus, errorThrown){}});
 }
 
@@ -456,8 +455,9 @@ var stream_window = null;
 
 function init() {
     //begin producer "thread"
-    getScheduleFromServer();
+    //getScheduleFromServer();
-    
+    setInterval(getScheduleFromServer, serverUpdateInterval);
+
     //begin consumer "thread"
     secondsTimer();
 

airtime_mvc/public/js/airtime/library/library.js

@@ -890,7 +890,7 @@ var AIRTIME = (function(AIRTIME) {
             }
         });
        
-        checkImportStatus();
+        //checkImportStatus();
         checkLibrarySCUploadStatus();
         
         addQtipToSCIcons();

airtime_mvc/public/js/airtime/schedule/full-calendar-functions.js

@@ -362,11 +362,14 @@ function windowResize() {
 function preloadEventFeed () {
     var url = baseUrl+'Schedule/event-feed-preload';
     var d = new Date();
+    createFullCalendar({calendarInit: calendarPref});
 
+/*
     $.post(url, {format: "json", cachep: d.getTime()}, function(json){
         calendarEvents = json.events;
         createFullCalendar({calendarInit: calendarPref});
     });
+   */
 }
 
 var initialLoad = true;

airtime_mvc/public/js/airtime/schedule/schedule.js

@@ -312,7 +312,7 @@ function createFullCalendar(data){
         ],
         contentHeight: mainHeight,
         theme: true,
-        lazyFetching: false,
+        lazyFetching: true,
         serverTimestamp: parseInt(data.calendarInit.timestamp, 10),
         serverTimezoneOffset: parseInt(data.calendarInit.timezoneOffset, 10),