AttributeError at /de/tools-of-the-trade-douglas-c-47d-skytrain/

Request Method:	GET
Request URL:	http://localhost/de/tools-of-the-trade-douglas-c-47d-skytrain/
Django Version:	4.1.7
Exception Type:	AttributeError
Exception Value:	'NoneType' object has no attribute 'width'
Exception Location:	/var/www/berlin_airlift/timeline/models.py, line 72, in get_context
Raised during:	wagtail.views.serve
Python Executable:	/usr/home/filip/.cache/pypoetry/virtualenvs/berlin-airlift-lL7Z2-sV-py3.9/bin/python
Python Version:	3.9.16
Python Path:	['/var/www/berlin_airlift', '/usr/local/lib/python39.zip', '/usr/local/lib/python3.9', '/usr/local/lib/python3.9/lib-dynload', '/usr/home/filip/.cache/pypoetry/virtualenvs/berlin-airlift-lL7Z2-sV-py3.9/lib/python3.9/site-packages', '/var/www/berlin_airlift']
Server time:	Thu, 21 Nov 2024 08:45:41 +0000

Traceback Switch to copy-and-paste view

/usr/home/filip/.cache/pypoetry/virtualenvs/berlin-airlift-lL7Z2-sV-py3.9/lib/python3.9/site-packages/django/core/handlers/exception.py

, line 56, in inner

```
        return inner
```
```
    else:
```
```
        @wraps(get_response)
```
```
        def inner(request):
```
```
            try:
```

                response = get_response(request)

…

```
            except Exception as exc:
```

                response = response_for_exception(request, exc)

```
            return response
```
```
        return inner
```

Local vars

Variable	Value
exc	AttributeError("'NoneType' object has no attribute 'width'")
get_response	<bound method BaseHandler._get_response of <django.core.handlers.base.BaseHandler object at 0x8989d5d00>>
request	<WSGIRequest: GET '/de/tools-of-the-trade-douglas-c-47d-skytrain/'>

Variable

Value

exc

AttributeError("'NoneType' object has no attribute 'width'")

get_response

<bound method BaseHandler._get_response of <django.core.handlers.base.BaseHandler object at 0x8989d5d00>>

request

<WSGIRequest: GET '/de/tools-of-the-trade-douglas-c-47d-skytrain/'>

/usr/home/filip/.cache/pypoetry/virtualenvs/berlin-airlift-lL7Z2-sV-py3.9/lib/python3.9/site-packages/django/core/handlers/base.py

, line 197, in _get_response

```
        if response is None:
```

            wrapped_callback = self.make_view_atomic(callback)

            # If it is an asynchronous view, run it in a subthread.

            if asyncio.iscoroutinefunction(wrapped_callback):

                wrapped_callback = async_to_sync(wrapped_callback)

```
            try:
```

                response = wrapped_callback(request, *callback_args, **callback_kwargs)

…

```
            except Exception as e:
```

                response = self.process_exception_by_middleware(e, request)

```
                if response is None:
```
```
                    raise
```

        # Complain if the view returned None (a common error).

Local vars

Variable	Value
callback	<function serve at 0x8b552af70>
callback_args	('tools-of-the-trade-douglas-c-47d-skytrain/',)
callback_kwargs	{}
middleware_method	<bound method CsrfViewMiddleware.process_view of <CsrfViewMiddleware get_response=convert_exception_to_response.<locals>.inner>>
request	<WSGIRequest: GET '/de/tools-of-the-trade-douglas-c-47d-skytrain/'>
response	None
self	<django.core.handlers.base.BaseHandler object at 0x8989d5d00>
wrapped_callback	<function serve at 0x8b552af70>

/usr/home/filip/.cache/pypoetry/virtualenvs/berlin-airlift-lL7Z2-sV-py3.9/lib/python3.9/site-packages/wagtail/views.py, line 28, in serve

```
    )
```

    for fn in hooks.get_hooks("before_serve_page"):

        result = fn(page, request, args, kwargs)

        if isinstance(result, HttpResponse):

```
            return result
```

    return page.serve(request, *args, **kwargs)

…

def authenticate_with_password(request, page_view_restriction_id, page_id):

```
    """
```

    Handle a submission of PasswordViewRestrictionForm to grant view access over a

    subtree that is protected by a PageViewRestriction

Local vars

Variable	Value
args	[]
fn	<function check_view_restrictions at 0x8b0396e50>
kwargs	{}
page	<TimelinePost: Handwerkszeug: Douglas C-47 Skytrain>
path	'tools-of-the-trade-douglas-c-47d-skytrain/'
path_components	['tools-of-the-trade-douglas-c-47d-skytrain']
request	<WSGIRequest: GET '/de/tools-of-the-trade-douglas-c-47d-skytrain/'>
result	None
site	<Site: localhost [Standard]>

/usr/home/filip/.cache/pypoetry/virtualenvs/berlin-airlift-lL7Z2-sV-py3.9/lib/python3.9/site-packages/wagtail/models/__init__.py

, line 1998, in serve

    def serve(self, request, *args, **kwargs):

```
        request.is_preview = False
```
```
        return TemplateResponse(
```
```
            request,
```

            self.get_template(request, *args, **kwargs),

            self.get_context(request, *args, **kwargs),

…

```
        )
```
```
    def is_navigable(self):
```
```
        """
```

        Return true if it's meaningful to browse subpages of this page -

```
        i.e. it currently has subpages,
```

Local vars

Variable	Value
args	()
kwargs	{}
request	<WSGIRequest: GET '/de/tools-of-the-trade-douglas-c-47d-skytrain/'>
self	<TimelinePost: Handwerkszeug: Douglas C-47 Skytrain>

/var/www/berlin_airlift/timeline/models.py, line 72, in get_context

        image = self.related_images.first()

```
        first_image_orientation = None
```
```
        if image:
```

            width = image.post_image.width

…

            height = image.post_image.height

```
            if width > height:
```

                first_image_orientation = "landscape"

```
            if width < height:
```

                first_image_orientation = "portrait"

Local vars

Variable	Value
__class__	<class 'timeline.models.TimelinePost'>
context	{'page': <TimelinePost: Handwerkszeug: Douglas C-47 Skytrain>, 'request': <WSGIRequest: GET '/de/tools-of-the-trade-douglas-c-47d-skytrain/'>, 'self': <TimelinePost: Handwerkszeug: Douglas C-47 Skytrain>}
first_image_orientation	None
image	<RelatedImages: RelatedImages object (48)>
request	<WSGIRequest: GET '/de/tools-of-the-trade-douglas-c-47d-skytrain/'>
self	<TimelinePost: Handwerkszeug: Douglas C-47 Skytrain>

Environment:

Request Method: GET
Request URL: http://localhost/de/tools-of-the-trade-douglas-c-47d-skytrain/

Django Version: 4.1.7
Python Version: 3.9.16
Installed Applications:
['home',
 'standardpage',
 'timeline',
 'chapter',
 'bakery',
 'wagtailbakery',
 'debug_toolbar',
 'wagtailmedia',
 'wagtail.contrib.forms',
 'wagtail.contrib.redirects',
 'wagtail.embeds',
 'wagtail.sites',
 'wagtail.users',
 'wagtail.snippets',
 'wagtail.documents',
 'wagtail.images',
 'wagtail.search',
 'wagtail.admin',
 'wagtail_localize',
 'wagtail_localize.locales',
 'wagtail',
 'modelcluster',
 'taggit',
 'wagtail.contrib.settings',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles']
Installed Middleware:
['debug_toolbar.middleware.DebugToolbarMiddleware',
 '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',
 'django.middleware.security.SecurityMiddleware',
 'wagtail.contrib.redirects.middleware.RedirectMiddleware',
 'django.middleware.locale.LocaleMiddleware']

Traceback (most recent call last):
  File "/usr/home/filip/.cache/pypoetry/virtualenvs/berlin-airlift-lL7Z2-sV-py3.9/lib/python3.9/site-packages/django/core/handlers/exception.py", line 56, in inner
    response = get_response(request)
  File "/usr/home/filip/.cache/pypoetry/virtualenvs/berlin-airlift-lL7Z2-sV-py3.9/lib/python3.9/site-packages/django/core/handlers/base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/home/filip/.cache/pypoetry/virtualenvs/berlin-airlift-lL7Z2-sV-py3.9/lib/python3.9/site-packages/wagtail/views.py", line 28, in serve
    return page.serve(request, *args, **kwargs)
  File "/usr/home/filip/.cache/pypoetry/virtualenvs/berlin-airlift-lL7Z2-sV-py3.9/lib/python3.9/site-packages/wagtail/models/__init__.py", line 1998, in serve
    self.get_context(request, *args, **kwargs),
  File "/var/www/berlin_airlift/timeline/models.py", line 72, in get_context
    width = image.post_image.width

Exception Type: AttributeError at /de/tools-of-the-trade-douglas-c-47d-skytrain/
Exception Value: 'NoneType' object has no attribute 'width'

Request information

USER

AnonymousUser

GET

No GET data

POST

No POST data

FILES

No FILES data

No cookie data

Variable	Value
HTTP_COOKIE	''
PATH_INFO	'/de/tools-of-the-trade-douglas-c-47d-skytrain/'
QUERY_STRING	''
REMOTE_ADDR	'127.0.0.1'
REQUEST_METHOD	'GET'
SCRIPT_NAME	''
SERVER_NAME	'localhost'
SERVER_PORT	'80'
SERVER_PROTOCOL	'HTTP/1.1'
wsgi.errors	<_io.BytesIO object at 0x8c29cb630>
wsgi.input	<django.test.client.FakePayload object at 0x8bc46adc0>
wsgi.multiprocess	True
wsgi.multithread	False
wsgi.run_once	False
wsgi.url_scheme	'http'
wsgi.version	(1, 0)

Settings

Using settings module `berlin_airlift.settings.dev`

Setting	Value
ABSOLUTE_URL_OVERRIDES	{}
ADMINS	[]
ALLOWED_HOSTS	['*']
APPEND_SLASH	True
AUTHENTICATION_BACKENDS	['django.contrib.auth.backends.ModelBackend']
AUTH_PASSWORD_VALIDATORS	'********************'
AUTH_USER_MODEL	'auth.User'
BAKERY_MULTISITE	True
BAKERY_VIEWS	('wagtailbakery.views.AllPublishedPagesView',)
BASE_DIR	'/var/www/berlin_airlift'
BUILD_DIR	'/var/www/berlin_airlift/static-site'
CACHES	{'default': {'BACKEND': 'django.core.cache.backends.locmem.LocMemCache'}}
CACHE_MIDDLEWARE_ALIAS	'default'
CACHE_MIDDLEWARE_KEY_PREFIX	'********************'
CACHE_MIDDLEWARE_SECONDS	600
CSRF_COOKIE_AGE	31449600
CSRF_COOKIE_DOMAIN	None
CSRF_COOKIE_HTTPONLY	False
CSRF_COOKIE_MASKED	False
CSRF_COOKIE_NAME	'csrftoken'
CSRF_COOKIE_PATH	'/'
CSRF_COOKIE_SAMESITE	'Lax'
CSRF_COOKIE_SECURE	False
CSRF_FAILURE_VIEW	'django.views.csrf.csrf_failure'
CSRF_HEADER_NAME	'HTTP_X_CSRFTOKEN'
CSRF_TRUSTED_ORIGINS	[]
CSRF_USE_SESSIONS	False
DATABASES	{'default': {'ATOMIC_REQUESTS': False, 'AUTOCOMMIT': True, 'CONN_HEALTH_CHECKS': False, 'CONN_MAX_AGE': 0, 'ENGINE': 'django.db.backends.sqlite3', 'HOST': '', 'NAME': '/var/www/berlin_airlift/db.sqlite3', 'OPTIONS': {}, 'PASSWORD': '********************', 'PORT': '', 'TEST': {'CHARSET': None, 'COLLATION': None, 'MIGRATE': True, 'MIRROR': None, 'NAME': None}, 'TIME_ZONE': None, 'USER': ''}}
DATABASE_ROUTERS	[]
DATA_UPLOAD_MAX_MEMORY_SIZE	2621440
DATA_UPLOAD_MAX_NUMBER_FIELDS	1000
DATA_UPLOAD_MAX_NUMBER_FILES	100
DATETIME_FORMAT	'N j, Y, P'
DATETIME_INPUT_FORMATS	['%Y-%m-%d %H:%M:%S', '%Y-%m-%d %H:%M:%S.%f', '%Y-%m-%d %H:%M', '%m/%d/%Y %H:%M:%S', '%m/%d/%Y %H:%M:%S.%f', '%m/%d/%Y %H:%M', '%m/%d/%y %H:%M:%S', '%m/%d/%y %H:%M:%S.%f', '%m/%d/%y %H:%M']
DATE_FORMAT	'N j, Y'
DATE_INPUT_FORMATS	['%Y-%m-%d', '%m/%d/%Y', '%m/%d/%y', '%b %d %Y', '%b %d, %Y', '%d %b %Y', '%d %b, %Y', '%B %d %Y', '%B %d, %Y', '%d %B %Y', '%d %B, %Y']
DEBUG	True
DEBUG_PROPAGATE_EXCEPTIONS	False
DECIMAL_SEPARATOR	'.'
DEFAULT_AUTO_FIELD	'django.db.models.AutoField'
DEFAULT_CHARSET	'utf-8'
DEFAULT_EXCEPTION_REPORTER	'django.views.debug.ExceptionReporter'
DEFAULT_EXCEPTION_REPORTER_FILTER	'django.views.debug.SafeExceptionReporterFilter'
DEFAULT_FILE_STORAGE	'django.core.files.storage.FileSystemStorage'
DEFAULT_FROM_EMAIL	'webmaster@localhost'
DEFAULT_INDEX_TABLESPACE	''
DEFAULT_TABLESPACE	''
DISALLOWED_USER_AGENTS	[]
EMAIL_BACKEND	'django.core.mail.backends.console.EmailBackend'
EMAIL_HOST	'localhost'
EMAIL_HOST_PASSWORD	'********************'
EMAIL_HOST_USER	''
EMAIL_PORT	25
EMAIL_SSL_CERTFILE	None
EMAIL_SSL_KEYFILE	'********************'
EMAIL_SUBJECT_PREFIX	'[Django] '
EMAIL_TIMEOUT	None
EMAIL_USE_LOCALTIME	False
EMAIL_USE_SSL	False
EMAIL_USE_TLS	False
FILE_UPLOAD_DIRECTORY_PERMISSIONS	None
FILE_UPLOAD_HANDLERS	['django.core.files.uploadhandler.MemoryFileUploadHandler', 'django.core.files.uploadhandler.TemporaryFileUploadHandler']
FILE_UPLOAD_MAX_MEMORY_SIZE	2621440
FILE_UPLOAD_PERMISSIONS	420
FILE_UPLOAD_TEMP_DIR	None
FIRST_DAY_OF_WEEK	0
FIXTURE_DIRS	[]
FORCE_SCRIPT_NAME	None
FORMAT_MODULE_PATH	None
FORM_RENDERER	'django.forms.renderers.DjangoTemplates'
IGNORABLE_404_URLS	[]
INSTALLED_APPS	['home', 'standardpage', 'timeline', 'chapter', 'bakery', 'wagtailbakery', 'debug_toolbar', 'wagtailmedia', 'wagtail.contrib.forms', 'wagtail.contrib.redirects', 'wagtail.embeds', 'wagtail.sites', 'wagtail.users', 'wagtail.snippets', 'wagtail.documents', 'wagtail.images', 'wagtail.search', 'wagtail.admin', 'wagtail_localize', 'wagtail_localize.locales', 'wagtail', 'modelcluster', 'taggit', 'wagtail.contrib.settings', 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles']
INTERNAL_IPS	[]
LANGUAGES	[('en', 'English'), ('de', 'German')]
LANGUAGES_BIDI	['he', 'ar', 'ar-dz', 'fa', 'ur']
LANGUAGE_CODE	'en'
LANGUAGE_COOKIE_AGE	None
LANGUAGE_COOKIE_DOMAIN	None
LANGUAGE_COOKIE_HTTPONLY	False
LANGUAGE_COOKIE_NAME	'django_language'
LANGUAGE_COOKIE_PATH	'/'
LANGUAGE_COOKIE_SAMESITE	None
LANGUAGE_COOKIE_SECURE	False
LOCALE_PATHS	['/var/www/berlin_airlift/locale']
LOGGING	{}
LOGGING_CONFIG	'logging.config.dictConfig'
LOGIN_REDIRECT_URL	'/accounts/profile/'
LOGIN_URL	'/accounts/login/'
LOGOUT_REDIRECT_URL	None
MANAGERS	[]
MEDIA_ROOT	'/var/www/berlin_airlift/media'
MEDIA_URL	'/media/'
MESSAGE_STORAGE	'django.contrib.messages.storage.fallback.FallbackStorage'
MIDDLEWARE	['debug_toolbar.middleware.DebugToolbarMiddleware', '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', 'django.middleware.security.SecurityMiddleware', 'wagtail.contrib.redirects.middleware.RedirectMiddleware', 'django.middleware.locale.LocaleMiddleware']
MIGRATION_MODULES	{}
MONTH_DAY_FORMAT	'F j'
NUMBER_GROUPING	0
PASSWORD_HASHERS	'********************'
PASSWORD_RESET_TIMEOUT	'********************'
PREPEND_WWW	False
PROJECT_DIR	'/var/www/berlin_airlift/berlin_airlift'
ROOT_URLCONF	'berlin_airlift.urls'
SECRET_KEY	'********************'
SECRET_KEY_FALLBACKS	'********************'
SECURE_CONTENT_TYPE_NOSNIFF	True
SECURE_CROSS_ORIGIN_OPENER_POLICY	'same-origin'
SECURE_HSTS_INCLUDE_SUBDOMAINS	False
SECURE_HSTS_PRELOAD	False
SECURE_HSTS_SECONDS	0
SECURE_PROXY_SSL_HEADER	None
SECURE_REDIRECT_EXEMPT	[]
SECURE_REFERRER_POLICY	'same-origin'
SECURE_SSL_HOST	None
SECURE_SSL_REDIRECT	False
SERVER_EMAIL	'root@localhost'
SESSION_CACHE_ALIAS	'default'
SESSION_COOKIE_AGE	1209600
SESSION_COOKIE_DOMAIN	None
SESSION_COOKIE_HTTPONLY	True
SESSION_COOKIE_NAME	'sessionid'
SESSION_COOKIE_PATH	'/'
SESSION_COOKIE_SAMESITE	'Lax'
SESSION_COOKIE_SECURE	False
SESSION_ENGINE	'django.contrib.sessions.backends.db'
SESSION_EXPIRE_AT_BROWSER_CLOSE	False
SESSION_FILE_PATH	None
SESSION_SAVE_EVERY_REQUEST	False
SESSION_SERIALIZER	'django.contrib.sessions.serializers.JSONSerializer'
SETTINGS_MODULE	'berlin_airlift.settings.dev'
SHORT_DATETIME_FORMAT	'm/d/Y P'
SHORT_DATE_FORMAT	'm/d/Y'
SIGNING_BACKEND	'django.core.signing.TimestampSigner'
SILENCED_SYSTEM_CHECKS	[]
SITE_ROOT	'/var/www/berlin_airlift'
STATICFILES_DIRS	['/var/www/berlin_airlift/berlin_airlift/static']
STATICFILES_FINDERS	['django.contrib.staticfiles.finders.FileSystemFinder', 'django.contrib.staticfiles.finders.AppDirectoriesFinder']
STATICFILES_STORAGE	'django.contrib.staticfiles.storage.ManifestStaticFilesStorage'
STATIC_ROOT	'/var/www/berlin_airlift/static'
STATIC_URL	'/static/'
TEMPLATES	[{'APP_DIRS': True, 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': ['/var/www/berlin_airlift/berlin_airlift/templates'], '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']}}]
TEST_NON_SERIALIZED_APPS	[]
TEST_RUNNER	'django.test.runner.DiscoverRunner'
THOUSAND_SEPARATOR	','
TIME_FORMAT	'P'
TIME_INPUT_FORMATS	['%H:%M:%S', '%H:%M:%S.%f', '%H:%M']
TIME_ZONE	'UTC'
USE_DEPRECATED_PYTZ	False
USE_I18N	True
USE_L10N	True
USE_THOUSAND_SEPARATOR	False
USE_TZ	True
USE_X_FORWARDED_HOST	False
USE_X_FORWARDED_PORT	False
WAGTAILADMIN_BASE_URL	'http://example.com'
WAGTAILIMAGES_MAX_UPLOAD_SIZE	167772160
WAGTAILMEDIA	{'AUDIO_EXTENSIONS': [], 'MEDIA_FORM_BASE': '', 'MEDIA_MODEL': 'wagtailmedia.Media', 'VIDEO_EXTENSIONS': []}
WAGTAILSEARCH_BACKENDS	{'default': {'BACKEND': 'wagtail.search.backends.database'}}
WAGTAILSIMPLETRANSLATION_SYNC_PAGE_TREE	True
WAGTAIL_CONTENT_LANGUAGES	[('en', 'English'), ('de', 'German')]
WAGTAIL_I18N_ENABLED	True
WAGTAIL_SITE_NAME	'berlin_airlift'
WSGI_APPLICATION	'berlin_airlift.wsgi.application'
X_FRAME_OPTIONS	'DENY'
YEAR_MONTH_FORMAT	'F Y'

AttributeError at /de/tools-of-the-trade-douglas-c-47d-skytrain/

Traceback Switch to copy-and-paste view

Request information

USER

GET

POST

FILES

COOKIES

META

Settings

Using settings module berlin_airlift.settings.dev

Using settings module `berlin_airlift.settings.dev`