diff --git a/main/gradebook/lib/be/forumthreadlink.class.php b/main/gradebook/lib/be/forumthreadlink.class.php
index 1b5cb05110..2b3e9349d3 100755
--- a/main/gradebook/lib/be/forumthreadlink.class.php
+++ b/main/gradebook/lib/be/forumthreadlink.class.php
@@ -51,9 +51,9 @@ class ForumThreadLink extends AbstractLink
         $tbl_grade_links = Database::get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
         $sql = 'SELECT thread_id,thread_title,thread_title_qualify 
                 FROM '.$this->get_forum_thread_table().'
-			    forum_thread WHERE thread_id NOT IN
-			    (
-			        SELECT ref_id FROM '.$tbl_grade_links.' 
+                forum_thread WHERE thread_id NOT IN
+                (
+                    SELECT ref_id FROM '.$tbl_grade_links.' 
                     WHERE 
                         type = '.LINK_FORUM_THREAD.' AND
                         c_id = '.intval($this->course_id).'
@@ -76,31 +76,31 @@ class ForumThreadLink extends AbstractLink
         return $cats;
     }
 
-	/**
-	 * Generate an array of all exercises available.
-	 * @return array 2-dimensional array - every element contains 2 subelements (id, name)
-	 */
-	public function get_all_links()
-	{
-		if (empty($this->course_code)) {
-			return [];
-		}
-
-		$tbl_grade_links = Database::get_course_table(TABLE_FORUM_THREAD);
-		$tbl_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
-		$session_id = api_get_session_id();
-
-		if ($session_id) {
-			$session_condition = 'tl.session_id='.api_get_session_id();
-		} else {
-			$session_condition = '(tl.session_id = 0 OR tl.session_id IS NULL)';
-		}
-
-		$sql = 'SELECT tl.thread_id, tl.thread_title, tl.thread_title_qualify
-				FROM '.$tbl_grade_links.' tl INNER JOIN '.$tbl_item_property.' ip
-				ON (tl.thread_id = ip.ref AND tl.c_id = ip.c_id)
-				WHERE
-				    tl.c_id = '.$this->course_id.' AND
+    /**
+     * Generate an array of all exercises available.
+     * @return array 2-dimensional array - every element contains 2 subelements (id, name)
+     */
+    public function get_all_links()
+    {
+        if (empty($this->course_code)) {
+            return [];
+        }
+
+        $tbl_grade_links = Database::get_course_table(TABLE_FORUM_THREAD);
+        $tbl_item_property = Database::get_course_table(TABLE_ITEM_PROPERTY);
+        $session_id = api_get_session_id();
+
+        if ($session_id) {
+            $session_condition = 'tl.session_id='.api_get_session_id();
+        } else {
+            $session_condition = '(tl.session_id = 0 OR tl.session_id IS NULL)';
+        }
+
+        $sql = 'SELECT tl.thread_id, tl.thread_title, tl.thread_title_qualify
+                FROM '.$tbl_grade_links.' tl INNER JOIN '.$tbl_item_property.' ip
+                ON (tl.thread_id = ip.ref AND tl.c_id = ip.c_id)
+                WHERE
+                    tl.c_id = '.$this->course_id.' AND
                     ip.c_id = '.$this->course_id.' AND
                     ip.tool = "forum_thread" AND
                     ip.visibility <> 2 AND
@@ -359,7 +359,7 @@ class ForumThreadLink extends AbstractLink
         return 'forum';
     }
 
-    function save_linked_data()
+    public function save_linked_data()
     {
         $weight = $this->get_weight();
         $ref_id = $this->get_ref_id();
@@ -372,7 +372,7 @@ class ForumThreadLink extends AbstractLink
         }
     }
 
-    function delete_linked_data()
+    public function delete_linked_data()
     {
         $ref_id = $this->get_ref_id();
         if (!empty($ref_id)) {
diff --git a/main/lp/aicc_api.php b/main/lp/aicc_api.php
index 9eabd3d2d1..73b69b068a 100755
--- a/main/lp/aicc_api.php
+++ b/main/lp/aicc_api.php
@@ -4,14 +4,14 @@
 use ChamiloSession as Session;
 
 /**
- *	API event handler functions for AICC / CMIv4 in API communication mode
+ * API event handler functions for AICC / CMIv4 in API communication mode
  *
- *	@author   Denes Nagy <darkden@freemail.hu>
- *  @author   Yannick Warnier <ywarnier@beeznest.org>
- *	@version  v 1.0
- *	@access   public
- *	@package  chamilo.learnpath
- * 	@license	GNU/GPL
+ * @author   Denes Nagy <darkden@freemail.hu>
+ * @author   Yannick Warnier <ywarnier@beeznest.org>
+ * @version  v 1.0
+ * @access   public
+ * @package  chamilo.learnpath
+ * @license    GNU/GPL
  */
 
 /**
@@ -141,10 +141,10 @@ function LMSGetValue(param) {
     }else if(param == 'cmi.core.student_id'){
         result='<?php echo $_user['user_id']; ?>';
     }else if(param == 'cmi.core.student_name'){
-          <?php
-            $who = addslashes(api_get_person_name($_user['firstName'], $_user['lastName']));
-            echo "result='$who';";
-          ?>
+      <?php
+        $who = addslashes(api_get_person_name($_user['firstName'], $_user['lastName']));
+        echo "result='$who';";
+      ?>
     }else if(param == 'cmi.core.lesson_location'){
         result=lesson_location;
     }else if(param == 'cmi.core.total_time'){