CC-3174 : showbuilder

only updating the timeline view if it is needed.

airtime_mvc/application/controllers/ShowbuilderController.php

@@ -10,6 +10,7 @@ class ShowbuilderController extends Zend_Controller_Action
                     ->addActionContext('schedule-add', 'json')
                     ->addActionContext('schedule-remove', 'json')
                     ->addActionContext('builder-dialog', 'json')
+                    ->addActionContext('check-builder-feed', 'json')
                     ->addActionContext('builder-feed', 'json')
                     ->initContext();
     }
@@ -19,7 +20,7 @@ class ShowbuilderController extends Zend_Controller_Action
         $this->_helper->layout->setLayout('builder');
 
         $this->view->headScript()->appendFile($this->view->baseUrl('/js/airtime/library/events/library_showbuilder.js'),'text/javascript');
-        
+
         $this->_helper->actionStack('library', 'library');
         $this->_helper->actionStack('builder', 'showbuilder');
     }
@@ -88,6 +89,37 @@ class ShowbuilderController extends Zend_Controller_Action
         $this->view->dialog = $this->view->render('showbuilder/builderDialog.phtml');
     }
 
+    public function checkBuilderFeedAction() {
+
+        $request = $this->getRequest();
+        $current_time = time();
+
+        $starts_epoch = $request->getParam("start", $current_time);
+        //default ends is 24 hours after starts.
+        $ends_epoch = $request->getParam("end", $current_time + (60*60*24));
+        $show_filter = intval($request->getParam("showFilter", 0));
+        $my_shows = intval($request->getParam("myShows", 0));
+        $timestamp = intval($request->getParam("timestamp", -1));
+
+        $startsDT = DateTime::createFromFormat("U", $starts_epoch, new DateTimeZone("UTC"));
+        $endsDT = DateTime::createFromFormat("U", $ends_epoch, new DateTimeZone("UTC"));
+
+        Logging::log("showbuilder starts {$startsDT->format("Y-m-d H:i:s")}");
+        Logging::log("showbuilder ends {$endsDT->format("Y-m-d H:i:s")}");
+
+        $opts = array("myShows" => $my_shows, "showFilter" => $show_filter);
+        $showBuilder = new Application_Model_ShowBuilder($startsDT, $endsDT, $opts);
+
+        //only send the schedule back if updates have been made.
+        // -1 default will always call the schedule to be sent back if no timestamp is defined.
+        if ($showBuilder->hasBeenUpdatedSince($timestamp)) {
+            $this->view->update = true;
+        }
+        else {
+            $this->view->update = false;
+        }
+    }
+
     public function builderFeedAction() {
 
         $request = $this->getRequest();
@@ -98,6 +130,7 @@ class ShowbuilderController extends Zend_Controller_Action
         $ends_epoch = $request->getParam("end", $current_time + (60*60*24));
         $show_filter = intval($request->getParam("showFilter", 0));
         $my_shows = intval($request->getParam("myShows", 0));
+        $timestamp = intval($request->getParam("timestamp", -1));
 
         $startsDT = DateTime::createFromFormat("U", $starts_epoch, new DateTimeZone("UTC"));
         $endsDT = DateTime::createFromFormat("U", $ends_epoch, new DateTimeZone("UTC"));
@@ -109,6 +142,7 @@ class ShowbuilderController extends Zend_Controller_Action
         $showBuilder = new Application_Model_ShowBuilder($startsDT, $endsDT, $opts);
 
         $this->view->schedule = $showBuilder->GetItems();
+        $this->view->timestamp = $current_time;
     }
 
     public function scheduleAddAction() {

airtime_mvc/application/forms/ShowBuilder.php

@@ -11,6 +11,12 @@ class Application_Form_ShowBuilder extends Zend_Form_SubForm
             array('ViewScript', array('viewScript' => 'form/showbuilder.phtml'))
         ));
 
+        //set value to -1 originally to ensure we grab the schedule on first call.
+        $timestamp = new Zend_Form_Element_Hidden('sb_timestamp');
+        $timestamp->setValue(-1)
+                  ->setDecorators(array('ViewHelper'));
+        $this->addElement($timestamp);
+
         // Add start date element
         $startDate = new Zend_Form_Element_Text('sb_date_start');
         $startDate->class = 'input_text';

airtime_mvc/application/models/Show.php

@@ -1448,7 +1448,8 @@ class Application_Model_Show {
         }
 
         $sql = "SELECT starts, ends, record, rebroadcast, instance_id, show_id, name,
-                color, background_color, file_id, cc_show_instances.id AS instance_id
+                color, background_color, file_id, cc_show_instances.id AS instance_id,
+                last_scheduled
             FROM cc_show_instances
             LEFT JOIN cc_show ON cc_show.id = cc_show_instances.show_id
             WHERE cc_show_instances.modified_instance = FALSE";
@@ -1479,6 +1480,9 @@ class Application_Model_Show {
             $sql = $sql." AND ({$exclude})";
         }
 
+        Logging::log("getShows");
+        Logging::log($sql);
+
         return $CC_DBC->GetAll($sql);
     }
 

airtime_mvc/application/models/ShowBuilder.php

@@ -6,8 +6,12 @@ require_once 'formatters/TimeFilledFormatter.php';
 class Application_Model_ShowBuilder {
 
     private $timezone;
+
+    //in UTC timezone
     private $startDT;
+    //in UTC timezone
     private $endDT;
+
     private $user;
     private $opts;
 
@@ -59,12 +63,12 @@ class Application_Model_ShowBuilder {
 
         $showStartDT = new DateTime($p_item["si_starts"], new DateTimeZone("UTC"));
         $schedStartDT = new DateTime($p_item["sched_starts"], new DateTimeZone("UTC"));
-        
+
         $showStartEpoch = intval($showStartDT->format('U'));
         $schedStartEpoch = intval($schedStartDT->format('U'));
 
         //can only schedule the show if item hasn't started and you are allowed.
-        if ($this->epoch_now < max($showStartEpoch, $schedStartEpoch) 
+        if ($this->epoch_now < max($showStartEpoch, $schedStartEpoch)
         		&& $this->user->canSchedule($p_item["show_id"]) == true) {
             $row["allowed"] = true;
         }
@@ -89,7 +93,7 @@ class Application_Model_ShowBuilder {
     }
 
     private function isCurrent($p_epochItemStart, $p_epochItemEnd, &$row) {
-       
+
         if ($this->epoch_now >= $p_epochItemStart && $this->epoch_now < $p_epochItemEnd) {
             $row["current"] = true;
             //how many seconds the view should wait to redraw itself.
@@ -194,6 +198,39 @@ class Application_Model_ShowBuilder {
         return $row;
     }
 
+    /*
+     * @param int $timestamp Unix timestamp in seconds.
+     *
+     * @return boolean whether the schedule in the show builder's range has been updated.
+     *
+     */
+    public function hasBeenUpdatedSince($timestamp) {
+        $outdated = false;
+
+        Logging::log("checking if show builder has been updated since {$timestamp}");
+
+        $shows = Application_Model_Show::getShows($this->startDT, $this->endDT);
+
+        foreach ($shows as $show) {
+
+            if (isset($show["last_scheduled"])) {
+                $dt = new DateTime($show["last_scheduled"], new DateTimeZone("UTC"));
+
+                //check if any of the shows have a more recent timestamp.
+                if ($timestamp < intval($dt->format("U"))) {
+                    $outdated = true;
+                    break;
+                }
+            }
+        }
+
+        if (count($shows) == 0) {
+            $outdated = true;
+        }
+
+        return $outdated;
+    }
+
     public function GetItems() {
 
         $current_id = -1;

airtime_mvc/application/views/scripts/form/showbuilder.phtml

@@ -1,4 +1,5 @@
 <div class="sb-timerange">
+    <?php echo $this->element->getElement('sb_timestamp') ?>
     <?php echo $this->element->getElement('sb_date_start') ?>
     <?php echo $this->element->getElement('sb_time_start') ?>
     <?php echo $this->element->getElement('sb_date_end') ?>