Division by zero when opening summary without data

[s1hofmann]

Error: ZeroDivisionError at /1/summary/

Steps to reproduce:

• Follow setup guide
• Have no sleep data
• Click view -> summary

Stacktrace:

Environment:


Request Method: GET
Request URL: http://127.0.0.1:8000/1/summary/

Django Version: 3.0.5
Python Version: 3.7.3
Installed Applications:
['slogger.apps.SloggerConfig',
 'registration.apps.RegistrationConfig',
 'bootstrap4',
 'bootstrap_datepicker_plus',
 'crispy_forms',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles']
Installed 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']



Traceback (most recent call last):
  File "/Users/s1hofmann/Documents/git/besdd/venv/lib/python3.7/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/Users/s1hofmann/Documents/git/besdd/venv/lib/python3.7/site-packages/django/core/handlers/base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/Users/s1hofmann/Documents/git/besdd/venv/lib/python3.7/site-packages/django/core/handlers/base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/Users/s1hofmann/Documents/git/besdd/venv/lib/python3.7/site-packages/django/views/generic/base.py", line 71, in view
    return self.dispatch(request, *args, **kwargs)
  File "/Users/s1hofmann/Documents/git/besdd/venv/lib/python3.7/site-packages/django/contrib/auth/mixins.py", line 52, in dispatch
    return super().dispatch(request, *args, **kwargs)
  File "/Users/s1hofmann/Documents/git/besdd/venv/lib/python3.7/site-packages/django/views/generic/base.py", line 97, in dispatch
    return handler(request, *args, **kwargs)
  File "/Users/s1hofmann/Documents/git/besdd/venv/lib/python3.7/site-packages/django/views/generic/list.py", line 157, in get
    context = self.get_context_data()
  File "/Users/s1hofmann/Documents/git/besdd/slogger/views.py", line 207, in get_context_data
    context["avg_sleep"] = functions.calculate_average(totals, "time")
  File "/Users/s1hofmann/Documents/git/besdd/slogger/functions.py", line 30, in calculate_average
    return total_sleep/total_days

Exception Type: ZeroDivisionError at /1/summary/
Exception Value: division by zero

[andreas-hofmann]

Whoops. That's what you get for not testing properly.
Fixed with 06f2f84.