Here is the broken site & error page:
The site works perfectly as it does locally when DEBUG = True. I have an ON_HEROKU=1 config variable set through the Heroku dashboard for the app, which causes the branch in settings.py to set DEBUG = False.
I tried setting it back to DEBUG = True, and everything else the same, and the site then works.
Here is my settings.py:
"""
Django settings for abstract_spacecraft project.
Generated by 'django-admin startproject' using Django 3.1.5.
For more information on this file, see
https://docs.djangoproject.com/en/3.1/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/3.1/ref/settings/
"""
from pathlib import Path
import os
import django_heroku
import dj_database_url
# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent
SITE_ROOT = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
SETTINGS_PATH = os.path.dirname(os.path.dirname(__file__))
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/3.1/howto/deployment/checklist/
# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.environ.get('SECRET_KEY', 'TODO: use secret key in deployment')
# SECURITY WARNING: don't run with debug turned on in production!
if os.environ.get('ON_HEROKU', '0') == '0':
DEBUG = True
else:
DEBUG = False
# SECURITY WARNING: don't run with debug turned on in production!
#DEBUG = True # TODO comment out
ALLOWED_HOSTS = [
'dc166c4c.databases.neo4j.io',
'abstract-spacecraft.herokuapp.com',
'127.0.0.1',
]
# Application definition
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'accounts.apps.AccountsConfig',
'whitenoise.runserver_nostatic',
'django_bootstrap5',
'cd_editor.apps.CdEditorConfig',
'database.apps.DatabaseConfig',
'django_neomodel',
]
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',
'whitenoise.middleware.WhiteNoiseMiddleware',
]
ROOT_URLCONF = 'abstract_spacecraft.urls'
TEMPLATES_PATH = os.path.join(SETTINGS_PATH, 'templates')
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [TEMPLATES_PATH,
os.path.join(TEMPLATES_PATH, 'abstract_spacecraft'),
os.path.join(TEMPLATES_PATH, 'accounts'),
os.path.join(TEMPLATES_PATH, 'cd_editor'),
os.path.join(TEMPLATES_PATH, 'database')],
'APP_DIRS': True,
'OPTIONS': {
'debug': True,
'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 = 'abstract_spacecraft.wsgi.application'
# Database
# https://docs.djangoproject.com/en/3.1/ref/settings/#databases
# TODO: try out PostgreSQL in production, i.e. change True to the commented out code;
if os.environ.get('ON_HEROKU', '0') == '0':
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
}
}
else:
DATABASES = {
# TODO: what does this max_age setting do?
'default' : dj_database_url.config(conn_max_age=600)
}
# Password validation
# https://docs.djangoproject.com/en/3.1/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/3.1/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/3.1/howto/static-files/
STATIC_URL = '/static/'
STATICFILES_DIRS = (
os.path.join(SITE_ROOT, 'static/'),)
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
def neo4j_url():
url = os.environ.get('NEO4J_SCHEMA', 'bolt') + "://"
url += os.environ.get('NEO4J_USERNAME', 'neo4j') + ":"
url += os.environ.get('NEO4J_PASSWORD', 'fusion123') + "@"
url += os.environ.get('NEO4J_HOST', 'localhost') + ":"
url += os.environ.get('NEO4J_PORT', '7687')
return url
NEOMODEL_NEO4J_BOLT_URL = neo4j_url()
NEOMODEL_SIGNALS = True
NEOMODEL_FORCE_TIMEZONE = False
NEOMODEL_ENCRYPTED_CONNECTION = False # TODO: how do we switch this on without error?
from neomodel import config # BUGFIX: had to do it this way
config.MAX_POOL_SIZE = 50 # TODO: what does this affect?
#LOGIN_REDIRECT_URL = 'home'
#LOGOUT_REDIRECT_URL = 'home'
# TODO: Enable Click-jacking protection
X_FRAME_OPTIONS = 'ALLOW' # ie set this to "DENY"
# https://docs.djangoproject.com/en/1.11/ref/clickjacking/
MAX_TEXT_LENGTH = 80
MAX_USERNAME_LENGTH = 50
MAX_PASSWORD_LENGTH = 50
MAX_USER_EDIT_DIAGRAMS = 8
MAX_BAD_CONN_RETRIES = 5
#MESSAGE_STORAGE = 'django.contrib.messages.storage.session.SessionStorage'
LOGGING = {
'version': 1,
'disable_existing_loggers': False,
'handlers': {
'console': {
'class': 'logging.StreamHandler',
},
},
'loggers': {
'django': {
'handlers': ['console'],
'level': os.getenv('DJANGO_LOG_LEVEL', 'DEBUG'),
},
},
}
# Activate Django-Heroku.
django_heroku.settings(locals())
The last part about LOGGING didn’t seem to do anything because I don’t see any extra logs or messages to the console anywhere on Heroku.
