OO-2915: don't push to the next step if block in assignment without task,...

OO-2915: don't push to the next step if block in assignment without task, reload the data model after extending the due dates of some user

src/main/java/org/olat/course/nodes/gta/ui/GTAAbstractController.java

@@ -299,9 +299,9 @@ public abstract class GTAAbstractController extends BasicController implements G
 				mainVC.contextPut("assignmentDueDate", dateAsString);
 				mainVC.contextRemove("assignmentDueDateMsg");
 				
-				if(assignedTask != null && assignedTask.getTaskStatus() == TaskProcess.assignment
-						&& date.compareTo(new Date()) < 0) {
-					//push to the next step
+				if(assignedTask != null && StringHelper.containsNonWhitespace(assignedTask.getTaskName())
+						&& assignedTask.getTaskStatus() == TaskProcess.assignment && date.compareTo(new Date()) < 0) {
+					//push to the next step if the task is blocked in assignment (it's a security)
 					assignedTask = gtaManager.nextStep(assignedTask, gtaNode);
 				}
 			} else if(dueDate.getMessageKey() != null) {

src/main/java/org/olat/course/nodes/gta/ui/GTACoachedGroupListController.java

@@ -174,7 +174,7 @@ public class GTACoachedGroupListController extends GTACoachedListController {
 	public void event(UserRequest ureq, Controller source, Event event) {
 		if(editDueDatesCtrl == source) {
 			if(event == Event.DONE_EVENT) {
-				//reload???
+				updateModel();
 			}
 			cmc.deactivate();
 			cleanUp();

src/main/java/org/olat/course/nodes/gta/ui/GTACoachedParticipantListController.java

@@ -276,7 +276,7 @@ public class GTACoachedParticipantListController extends GTACoachedListControlle
 	public void event(UserRequest ureq, Controller source, Event event) {
 		if(editDueDatesCtrl == source) {
 			if(event == Event.DONE_EVENT) {
-				//reload???
+				updateModel();
 			}
 			cmc.deactivate();
 			cleanUp();

src/main/java/org/olat/course/nodes/gta/ui/GTAParticipantController.java

 /**
-
-
  * <a href="http://www.openolat.org">
  * OpenOLAT - Online Learning and Training</a><br>
  * <p>