New model objects disappear after five minutes in Django - django

Question

whenever I create a new object in one of my models, they exist for around five minutes and then disappear. I checked in both my admin view and the queryset in the shell and they just disappear. I don't understand what's happening so if anyone has any idea, that'd be very useful.
These are the models:
class Character(models.Model):
image = models.ImageField()
name = models.CharField(max_length=100)
age = models.IntegerField()
story = models.CharField(max_length=500)
def __str__(self):
return self.name
class Movie(models.Model):
image = models.ImageField()
title = models.CharField(max_length=100)
creation_date = models.DateField(auto_now=True)
rating = models.IntegerField()
characters = models.ManyToManyField(Character, blank=True, related_name='movies')
def __str__(self):
return self.title
These are the views:
class CharacterCreateAPI(generics.CreateAPIView):
queryset = Character.objects.all()
serializer_class = CharacterSerializer
permission_classes = (AllowAny,)
class MovieCreateAPI(generics.CreateAPIView):
queryset = Movie.objects.all()
serializer_class = MovieSerializer
permission_classes = (AllowAny,)
These are the serializers:
class CharacterSerializer(serializers.ModelSerializer):
movies = serializers.PrimaryKeyRelatedField(queryset=Movie.objects.all())
class Meta:
model = Character
fields = ['name', 'age', 'image', 'movies', 'story']
extra_kwargs = {'image': {'required': False, 'allow_null': True}}
class MovieSerializer(serializers.ModelSerializer):
class Meta:
model = Movie
fields = ('title', 'image', 'rating', 'characters')
extra_kwargs = {'image': {'required': False, 'allow_null': True}}
def create(self, validated_data):
characters = validated_data.pop('characters')
movie = Movie.objects.create(**validated_data)
if characters:
movie.set(characters)
movie.save()
return movie
Settings:
from pathlib import Path
# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.2/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = ''
# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True
ALLOWED_HOSTS = []
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'rest_framework',
'rest_auth',
'django.contrib.sites',
'allauth',
'allauth.account',
'rest_auth.registration',
'rest_framework.authtoken',
'core'
]
SITE_ID = 1
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'mysite.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
WSGI_APPLICATION = 'mysite.wsgi.application'
# Database
# https://docs.djangoproject.com/en/3.2/ref/settings/#databases
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
}
}
# Password validation
# https://docs.djangoproject.com/en/3.2/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]
# Internationalization
# https://docs.djangoproject.com/en/3.2/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/3.2/howto/static-files/
STATIC_URL = '/static/'
# Default primary key field type
# https://docs.djangoproject.com/en/3.2/ref/settings/#default-auto-field
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
REST_FRAMEWORK = {
'DEFAULT_PERMISSION_CLASSES': [
'rest_framework.permissions.IsAuthenticated',
'rest_framework.permissions.IsAdminUser',
'rest_framework.permissions.AllowAny',
],
'DEFAULT_AUTHENTICATION_CLASSES': (
'rest_framework.authentication.TokenAuthentication',
)
}