diff --git a/core/class/layout.class.php b/core/class/layout.class.php
index e293cbc..fd7b7a1 100644
--- a/core/class/layout.class.php
+++ b/core/class/layout.class.php
@@ -499,10 +499,10 @@ class layout extends common
             $this->getUser('group') === self::GROUP_MEMBER
             && $this->getData(['theme', 'menu', 'selectSpace']) === true
         ) {
-            if ($this->getCoursesByUser()) {
+            if ($this->getCoursesByProfil()) {
                 $itemsRight .= '<li><select id="menuSelectCourse" >';
                 $itemsRight .= '<option name="' . helper::translate('Accueil') . '" value="' . helper::baseUrl(true) . 'course/swap/home" ' . ('home' === self::$siteContent ? 'selected' : '') . '>' . helper::translate('Accueil') . '</option>';
-                foreach ($this->getCoursesByUser() as $courseId => $value) {
+                foreach ($this->getCoursesByProfil() as $courseId => $value) {
                     $itemsRight .= '<option name="' . $this->getData(['course', $courseId, 'title']) . '" value="' . helper::baseUrl(true) . 'course/swap/' . $courseId . '" ' . ($courseId === self::$siteContent ? 'selected' : '') . '>' . $this->getData(['course', $courseId, 'title']) . '</option>';
                 }
                 $itemsRight .= '</select></li>';
@@ -921,10 +921,10 @@ class layout extends common
              * Les enseignants les contenus dont ils sont auteurs
              */
             if ($this->getUser('group') >= self::GROUP_EDITOR) {
-                if ($this->getCoursesByUser()) {
+                if ($this->getCoursesByProfil()) {
                     $leftItems .= '<li><select id="barSelectCourse" >';
                     $leftItems .= '<option name="' . helper::translate('Accueil') . '" value="' . helper::baseUrl(true) . 'course/swap/home" ' . ('home' === self::$siteContent ? 'selected' : '') . '>' . helper::translate('Accueil') . '</option>';
-                    foreach ($this->getCoursesByUser() as $courseId => $value) {
+                    foreach ($this->getCoursesByProfil() as $courseId => $value) {
                         $leftItems .= '<option name="' . $this->getData(['course', $courseId, 'title']) . '" value="' . helper::baseUrl(true) . 'course/swap/' . $courseId . '" ' . ($courseId === self::$siteContent ? 'selected' : '') . '>' . $this->getData(['course', $courseId, 'title']) . '</option>';
                     }
                     $leftItems .= '</select></li>';
diff --git a/core/core.php b/core/core.php
index a1a5144..cbb7d7a 100644
--- a/core/core.php
+++ b/core/core.php
@@ -1422,7 +1422,7 @@ class common
 	 * CETTE FONCTION N'EST PAS UTILISEE
 	 * 
 	 */
-	public function getCoursesByUser()
+	public function getCoursesByProfil()
 	{
 		$courses = $this->getData([('course')]);
 		$courses = helper::arraycolumn($courses, 'title', 'SORT_ASC');
@@ -1434,12 +1434,11 @@ class common
 				return $courses;
 			case self::GROUP_EDITOR:
 				foreach ($courses as $courseId => $value) {
-					$students = $this->getData(['enrolment', $courseId]);
 					// Affiche les espaces gérés par l'éditeur, les espaces où il participe et les espaces ouverts
 					if (
-						isset($students[$userId]) === true ||
-						$this->getData(['course', $courseId, 'author']) === $userId ||
-						$this->getData(['course', $courseId, 'enrolment']) === self::COURSE_ENROLMENT_GUEST
+						( $this->getData(['enrolment', $courseId]) &&  array_key_exists($this->getUser('id'),  $this->getData(['enrolment', $courseId])) )
+						|| $this->getUser('id') === $this->getData(['course', $courseId, 'author'])
+						|| $this->getData(['course', $courseId, 'enrolment']) === self::COURSE_ENROLMENT_GUEST
 					) {
 						$filter[$courseId] = $courses[$courseId];
 					}
@@ -1448,10 +1447,9 @@ class common
 			case self::GROUP_MEMBER:
 				foreach ($courses as $courseId => $value) {
 					// Affiche les espaces du participant et les espaces anonymes 
-					$students = $this->getData(['enrolment', $courseId]);
 					if (
-						isset($students[$userId]) === true ||
-						$this->getData(['course', $courseId, 'enrolment']) === self::COURSE_ENROLMENT_GUEST
+						($this->getData(['enrolment', $courseId]) && array_key_exists($this->getUser('id'), $this->getData(['enrolment', $courseId])) )
+						|| $this->getData(['course', $courseId, 'enrolment']) === self::COURSE_ENROLMENT_GUEST
 					) {
 						$filter[$courseId] = $courses[$courseId];
 					}
diff --git a/core/module/course/course.php b/core/module/course/course.php
index 3dd1da2..aec72ab 100644
--- a/core/module/course/course.php
+++ b/core/module/course/course.php
@@ -85,9 +85,9 @@ class course extends common
         if (
             $this->getUser('id')
             && $this->getUser('group')
-            && $this->getCoursesByUser()
+            && $this->getCoursesByProfil()
         ) {
-            foreach ($this->getCoursesByUser() as $courseId => $courseValue) {
+            foreach ($this->getCoursesByProfil() as $courseId => $courseValue) {
                 /**
                  * Filtres :
                  * Groupes acceptés :
@@ -1761,9 +1761,9 @@ class course extends common
             case self::GROUP_EDITOR:
                 return (
                     $this->getUser('group') === self::$actions[$funtion]
-                    && $this->getData(['enrolment', $courseId])
-                    && ($this->getUser('id') === $this->getData(['course', $courseId, 'author'])
-                        || array_key_exists($this->getUser('id'), $this->getData(['enrolment', $courseId])) )
+                    && 
+                    ( $this->getData(['enrolment', $courseId]) && ($this->getUser('id') === $this->getData(['course', $courseId, 'author']) )
+                    || array_key_exists($this->getUser('id'), $this->getData(['enrolment', $courseId])) )
                 );
             default:
                 return false;