diff --git a/advlabdb/modelViews.py b/advlabdb/modelViews.py
index cd85f8e..7fd4735 100644
--- a/advlabdb/modelViews.py
+++ b/advlabdb/modelViews.py
@@ -58,9 +58,7 @@ class SemesterModelView(SecureModelView):
                 flash("This semester already has parts!", "danger")
                 return
 
-            for partLabel in getConfig("partsLabels"):
-                db.session.add(Part(label=partLabel, semester=model))
-            db.session.commit()
+            model.createParts()
 
         if is_created:
             admin.add_link(MenuLink(name=model.label,
diff --git a/testDB.py b/testDB.py
index 5d8e96b..fc79c0a 100644
--- a/testDB.py
+++ b/testDB.py
@@ -13,11 +13,11 @@ with app.app_context():
     db.session.add(sem1)
     db.session.add(sem2)
 
-    parta1 = Part(label="A/1", semester=sem2)
-    partb2 = Part(label="B/2", semester=sem2)
+    sem1.createParts()
+    sem2.createParts()
 
-    db.session.add(parta1)
-    db.session.add(partb2)
+    parta1 = sem2.parts[0]
+    partb2 = sem2.parts[1]
 
     student1 = Student(student_number=123, first_name="Mo", last_name="Bit", uni_email="m@test.com")
     student2 = Student(student_number=1232, first_name="Mo2", last_name="Bit", uni_email="m2@test.com")