diff --git a/server/app/database/controller/add.py b/server/app/database/controller/add.py
index 128a3398aa375fb1b59732fc75e1349540e0826f..18bcd4b130a1f6aebd49df520c83e741a819d8cc 100644
--- a/server/app/database/controller/add.py
+++ b/server/app/database/controller/add.py
@@ -179,10 +179,13 @@ def _competition_no_slides(name, year, city_id, font=None):
         item_competition.font = font
 
     # Add code for Judge view
-    code(item_competition.id, 2)
+    code(2, item_competition.id)
 
     # Add code for Audience view
-    code(item_competition.id, 3)
+    code(3, item_competition.id)
+
+    # Add code for Operator view
+    code(4, item_competition.id)
 
     item_competition = utils.refresh(item_competition)
     return item_competition
diff --git a/server/app/database/controller/copy.py b/server/app/database/controller/copy.py
index 9a1aa67168c1e232f8b2e0d2742de6bd1b87837e..08d743472035034b3b45eda3bdc6553f26377f60 100644
--- a/server/app/database/controller/copy.py
+++ b/server/app/database/controller/copy.py
@@ -103,7 +103,6 @@ def competition(item_competition_old):
     name = "Kopia av " + item_competition_old.name
     item_competition, total = search.competition(name=name)
     if item_competition:
-        print(f"{item_competition[total-1].name}, {total=}")
         name = "Kopia av " + item_competition[total - 1].name
 
     item_competition_new = add._competition_no_slides(
diff --git a/server/app/database/controller/delete.py b/server/app/database/controller/delete.py
index f3dc2dd51b680bc8834d9cf734001ac7291883d8..93a4c3393bf57fed22f2d672338f6cc592ecc543 100644
--- a/server/app/database/controller/delete.py
+++ b/server/app/database/controller/delete.py
@@ -56,10 +56,13 @@ def slide(item_slide):
 
 
 def team(item_team):
-    """ Deletes team and its question answers. """
+    """ Deletes team, its question answers and the code. """
 
     for item_question_answer in item_team.question_answers:
         question_answers(item_question_answer)
+    for item_code in item_team.code:
+        code(item_code)
+
     default(item_team)
 
 
@@ -86,12 +89,19 @@ def question_answers(item_question_answers):
 
 
 def competition(item_competition):
-    """ Deletes competition and its slides and teams. """
+    """ Deletes competition, its slides, teams and codes. """
 
     for item_slide in item_competition.slides:
         _slide(item_slide)
     for item_team in item_competition.teams:
         team(item_team)
+    for item_code in item_competition.codes:
+        code(item_code)
 
-    # TODO codes
     default(item_competition)
+
+
+def code(item_code):
+    """ Deletes competition code. """
+
+    default(item_code)
diff --git a/server/app/database/models.py b/server/app/database/models.py
index 4bb95967aaeef34707e3defe7e38a173020dce30..0f909aee7f7ebf33efba3b5145601c9a6f9bced5 100644
--- a/server/app/database/models.py
+++ b/server/app/database/models.py
@@ -104,6 +104,7 @@ class Competition(db.Model):
 
     slides = db.relationship("Slide", backref="competition")
     teams = db.relationship("Team", backref="competition")
+    codes = db.relationship("Code", backref="competition")
 
     background_image = db.relationship("Media", uselist=False)
 
@@ -121,6 +122,7 @@ class Team(db.Model):
     competition_id = db.Column(db.Integer, db.ForeignKey("competition.id"), nullable=False)
 
     question_answers = db.relationship("QuestionAnswer", backref="team")
+    code = db.relationship("Code", backref="team")
 
     def __init__(self, name, competition_id):
         self.name = name
diff --git a/server/tests/test_db.py b/server/tests/test_db.py
index dd13427c1c62689a88edefc96a6c16b8aa9db682..c504ed14ff39224f9bb76fe8fd32ca99e12dd725 100644
--- a/server/tests/test_db.py
+++ b/server/tests/test_db.py
@@ -3,10 +3,10 @@ This file tests the database controller functions.
 """
 
 import app.database.controller as dbc
-from app.database.models import City, Media, MediaType, Role, User
+from app.database.models import City, Competition, Media, MediaType, Role, User, Code
 
 from tests import app, client, db
-from tests.test_helpers import add_default_values, assert_exists, assert_insert_fail
+from tests.test_helpers import add_default_values, assert_exists, assert_insert_fail, delete
 
 
 def test_user(client):
@@ -58,7 +58,7 @@ def test_copy(client):
     item_slide_original = item_slides[0]
 
     # Inserts several copies of the same slide
-    num_copies = 10
+    num_copies = 3
     for _ in range(num_copies):
         item_slide_copy = dbc.copy.slide(item_slide_original)
         num_slides += 1
@@ -73,6 +73,23 @@ def test_copy(client):
             item_slide_original = item_competition_original.slides[order]
             check_slides_copy(item_slide_original, item_slide, num_slides, order)
             assert item_slide.competition_id != item_slide_original.competition_id
+            # TODO: Check that all codes are corectly created
+
+    # Deleting competition deletes all corresponding codes
+    item_competitions = dbc.get.all(Competition)
+    for item_competition in item_competitions:
+        dbc.delete.competition(item_competition)
+    assert len(dbc.get.all(Code)) == 0
+
+    # Deleting team deletes the right code
+    item_competition = dbc.add.competition("tom", 1971, 1)
+    item_team_1 = dbc.add.team("Lag 1", item_competition.id)
+    item_team_2 = dbc.add.team("Lag 2", item_competition.id)
+    assert len(dbc.get.all(Code)) == 5
+    dbc.delete.team(item_team_1)
+    assert len(dbc.get.all(Code)) == 4
+    dbc.delete.team(item_team_2)
+    assert len(dbc.get.all(Code)) == 3
 
 
 def check_slides_copy(item_slide_original, item_slide_copy, num_slides, order):