disable caching for courses with 1000+ students

amd/build/suivi.js

@@ -155,7 +155,11 @@ define(['jquery', 'core/ajax', 'core/templates', 'core/str'],
         		data=calcPercentage(JSON.parse(request));
         		//initGroupFilter();
         		changeSection();
-        		localStorage.setItem("groups",request);
+        		if(data.students.length<1000){
+        			
+        			localStorage.setItem("groups",request);
+        		}
+        		
         		displayTotalGroupsFilter(false);
 			}
 		});
@@ -296,7 +300,10 @@ define(['jquery', 'core/ajax', 'core/templates', 'core/str'],
            
           
         }
-        localStorage.setItem("activities",JSON.stringify(activitiesToStore));
+        if(data.students.length<1000){
+        	localStorage.setItem("activities",JSON.stringify(activitiesToStore));
+        }
+        
         if(changefilter==true){
         	reloadTable(data);
         }

suivi_unit.php

@@ -348,6 +348,7 @@ if (isset($_POST['groupsid'])) {
 }
 
 
+$countstudents=count_enrolled_users($context);
 $cache = cache::make('format_iena', 'students');
 
 //Si le progrès de chacun des groupes existe déjà en cache on va les charger, sinon on les récupère dans la BDD et on les stocke
@@ -368,7 +369,11 @@ for($i=0; $i<count($activegroupsids); $i++){
             '',
             $context
         );
-        $cache->set($activegroupsids[$i], $progressrequest);
+        //On active le cache seulement s'il y a plus de x étudiants
+        if($countstudents<1000){
+            $cache->set($activegroupsids[$i], $progressrequest);
+        }
+        
         $progress=$progressrequest;
     }
      $arrayprogress=(object) array_unique(array_merge((array) $arrayprogress, (array) $progress), SORT_REGULAR);
@@ -486,7 +491,7 @@ else if (isset($_POST['action']) && !empty($_POST['action'])) {
 
         $data = set_filters($data, $filters, $symbols, $sections, array_values($groups), $groupsall->current_user_groups, $groupsall->othergroups, $activesectionid);
         $data = set_data($data, $modules, $arrayprogress, $groups, $activegroupsids, $activesectionid, $listoptions);
-
+        $data["countstudents"]=$countstudents;
         if (isset($_GET["msg_success"])) {
             $msg = $_GET["msg_success"];
             $data["msg_success"] = $msg;