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();
     }
@@ -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;
 
@@ -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') ?>

airtime_mvc/public/js/airtime/showbuilder/builder.js

@@ -14,6 +14,32 @@ var AIRTIME = (function(AIRTIME){
 		}
 	}
 	
+	mod.resetTimestamp = function() {
+		var timestamp = $("#sb_timestamp");
+		//reset timestamp value since input values could have changed.
+		timestamp.val(-1);
+	};
+	
+	mod.setTimestamp = function(timestamp) {
+		$("#sb_timestamp").val(timestamp);
+	};
+	
+	mod.getTimestamp = function() {
+		var timestamp = $("#sb_timestamp"),
+			val;
+		
+		//if the timestamp field is on the page return it, or give the default of -1
+		//to ensure a page refresh.
+		if (timestamp.length === 1) {
+			val = timestamp.val();
+		}
+		else {
+			val = -1;
+		}
+		
+		return val;
+	};
+	
 	mod.fnAdd = function(aMediaIds, aSchedIds) {
 		var oLibTT = TableTools.fnGetInstance('library_display');
 		
@@ -47,6 +73,8 @@ var AIRTIME = (function(AIRTIME){
 	};
 	
 	fnServerData = function ( sSource, aoData, fnCallback ) {
+		
+		aoData.push( { name: "timestamp", value: AIRTIME.showbuilder.getTimestamp()} );
 		aoData.push( { name: "format", value: "json"} );
 		
 		if (fnServerData.hasOwnProperty("start")) {
@@ -65,7 +93,10 @@ var AIRTIME = (function(AIRTIME){
 			"type": "GET",
 			"url": sSource,
 			"data": aoData,
-			"success": fnCallback
+			"success": function(json) {
+				AIRTIME.showbuilder.setTimestamp(json.timestamp);
+				fnCallback(json);
+			}
 		} );
 	};
 	
@@ -302,6 +333,7 @@ var AIRTIME = (function(AIRTIME){
 						aData = tr.data("aData");
 					
 					setTimeout(function(){
+						AIRTIME.showbuilder.resetTimestamp();
 						oTable.fnDraw();
 					}, aData.refresh * 1000); //need refresh in milliseconds
 				}
@@ -311,7 +343,9 @@ var AIRTIME = (function(AIRTIME){
 			},
 			//remove any selected nodes before the draw.
 			"fnPreDrawCallback": function( oSettings ) {
-				var oTT = TableTools.fnGetInstance('show_builder_table');
+				var oTT;
+				
+				oTT = TableTools.fnGetInstance('show_builder_table');
 				oTT.fnSelectNone();
 		    },
 			

airtime_mvc/public/js/airtime/showbuilder/main_builder.js

@@ -109,6 +109,9 @@ $(document).ready(function(){
 			op,
 			oTable = $('#show_builder_table').dataTable();
 		
+		//reset timestamp value since input values could have changed.
+		AIRTIME.showbuilder.resetTimestamp();
+		
 		oRange = fnGetScheduleRange();
 		
 	    fn = oTable.fnSettings().fnServerData;
@@ -136,6 +139,9 @@ $(document).ready(function(){
 		
 		if ($button.hasClass("sb-edit")) {
 			
+			//reset timestamp to redraw the cursors.
+			AIRTIME.showbuilder.resetTimestamp();
+			
 			$lib.show();
 			$lib.width(Math.floor(screenWidth * 0.5));
 			$builder.width(Math.floor(screenWidth * 0.5));
@@ -155,7 +161,6 @@ $(document).ready(function(){
 		}
 		
 		oTable.fnDraw();	
-		
 	});
 	
 	oRange = fnGetScheduleRange();	
@@ -165,8 +170,35 @@ $(document).ready(function(){
 	AIRTIME.library.libraryInit();
 	AIRTIME.showbuilder.builderDataTable();
 	
+	//check if the timeline viewed needs updating.
 	setInterval(function(){
-		var oTable = $('#show_builder_table').dataTable();
-		oTable.fnDraw();
-	}, 20 * 1000); //need refresh in milliseconds
+		var data = {},
+			oTable = $('#show_builder_table').dataTable(),
+			fn = oTable.fnSettings().fnServerData,
+	    	start = fn.start,
+	    	end = fn.end;
+		
+		data["format"] = "json";
+		data["start"] = start;
+		data["end"] = end;
+		data["timestamp"] = AIRTIME.showbuilder.getTimestamp();
+		
+		if (fn.hasOwnProperty("ops")) {
+			data["myShows"] = fn.ops.myShows;
+			data["showFilter"] = fn.ops.showFilter;
+		}
+		
+		$.ajax( {
+			"dataType": "json",
+			"type": "GET",
+			"url": "/showbuilder/check-builder-feed",
+			"data": data,
+			"success": function(json) {
+				if (json.update === true) {
+					oTable.fnDraw();
+				}
+			}
+		} );
+		
+	}, 5 * 1000); //need refresh in milliseconds
 });