Removed `create` method from Semesters model

~dev_rating/application/classes/Controller/Student/Index.php

@@ -20,7 +20,7 @@ class Controller_Student_Index extends Controller_UserEnvi {
             $twig->disciplines = $list;
         $twig->User = $this->UserInfo;
         $twig->Semester = $this->SemesterInfo;
-        $twig->SemesterList = Model_Semesters::create()->getList();
+        $twig->SemesterList = Model_Semesters::toArray();
         $this->response->body($twig);
     }
 

~dev_rating/application/classes/Controller/Teacher/Index.php

@@ -41,7 +41,7 @@ class Controller_Teacher_Index extends Controller_UserEnvi {
             $disciplinesHandled[$i]['Disciplines'][$j]['Groups'] = implode(', ', $groupsInDiscipline);
         } //!for_each
         $twig->Subjects = $disciplinesHandled;
-        $twig->SemesterList = Model_Semesters::create()->getList();
+        $twig->SemesterList = Model_Semesters::toArray();
         $twig->Semester = $this->SemesterInfo;
         $twig->User = $this->UserInfo;
         $this->response->body($twig);

~dev_rating/application/classes/Model/Semesters.php

@@ -2,10 +2,6 @@
 
 class Model_Semesters extends Model
 {
-    public static function create() {
-        return new self();
-    }
-
     /**
      * @param $id int semester id
      * @return array data from <tt>semesters</tt> table
@@ -15,13 +11,13 @@ class Model_Semesters extends Model
         return DB::query(Database::SELECT, $sql)->execute()->offsetGet(0);
     }
 
-    public function getSemesters() {
+    public static function getSemesters() {
         $sql = "CALL `GetSemesters`()";
         return DB::query(Database::SELECT, $sql)->execute();
     }
 
-    public function getList() {
-        $semesters = $this->getSemesters();
+    public static function toArray() {
+        $semesters = self::getSemesters();
         $list = array();
 
         foreach ($semesters as $row) {