Suddenly I can no longer add blogs to Django. Django says 'blog matching query does not exist'. That seems strange to me because I want to add something to the database and not request a blog. What could be going on here?
admin.py:
class blogadmin(admin.ModelAdmin):
def save_model(self, request, obj, form, change):
if not change:
obj.added_by_user = request.user.username
obj.ip_added = request.META['REMOTE_ADDR']
if obj.ip_added == '127.0.0.1':
obj.ip_added = request.META['HTTP_X_FORWARDED_FOR']
obj.publish = False
del obj.publish_date
else:
obj.changed_by_user = request.user.username
obj.ip_changed = request.META['REMOTE_ADDR']
if obj.ip_changed == '127.0.0.1':
obj.ip_changed = request.META['HTTP_X_FORWARDED_FOR']
if obj.publish == True:
if not obj.publish_date:
obj.publish_date = obj.datetime_changed
super(blogadmin,self).save_model(request, obj, form, change)
I can add text, photographs etc., but no blogs, changing is ok.
Notifications:
DoesNotExist at /admin/blog/blog/add/
blog matching query does not exist.
Request Method: POST
Request URL: http://127.0.0.1:8001/admin/blog/blog/add/
Django Version: 4.1.1
Exception Type: DoesNotExist
Exception Value:
blog matching query does not exist.
Traceback
Environment:
Request Method: POST
Request URL: http://127.0.0.1:8001/admin/blog/blog/add/
Django Version: 4.1.1
Python Version: 3.10.5
Installed Applications:
['grappelli',
'django.contrib.admin',
'django.contrib.admindocs',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'blog.apps.BlogConfig']
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',
'django.contrib.admindocs.middleware.XViewMiddleware']
Traceback (most recent call last):
File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/core/handlers/exception.py",
line 55, in inner response = get_response(request) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/core/handlers/base.py",
line 197, in _get_response response = wrapped_callback(request,
*callback_args, **callback_kwargs) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/contrib/admin/options.py",
line 686, in wrapper return self.admin_site.admin_view(view)(*args,
**kwargs) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/utils/decorators.py",
line 133, in _wrapped_view response = view_func(request, *args,
**kwargs) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/views/decorators/cache.py",
line 62, in _wrapped_view_func response = view_func(request, *args,
**kwargs) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/contrib/admin/sites.py",
line 242, in inner return view(request, *args, **kwargs) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/contrib/admin/options.py",
line 1890, in add_view return self.changeform_view(request, None,
form_url, extra_context) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/utils/decorators.py",
line 46, in _wrapper return bound_method(*args, **kwargs) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/utils/decorators.py",
line 133, in _wrapped_view response = view_func(request, *args,
**kwargs) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/contrib/admin/options.py",
line 1750, in changeform_view return self._changeform_view(request,
object_id, form_url, extra_context) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/contrib/admin/options.py",
line 1802, in _changeform_view self.save_model(request, new_object,
form, not add) File "/var/django/liakoster.nl/blog-1/blog/admin.py",
line 26, in save_model super(blogadmin,self).save_model(request, obj,
form, change) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/contrib/admin/options.py",
line 1225, in save_model obj.save() File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/base.py",
line 831, in save self.save_base( File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/base.py",
line 882, in save_base updated = self._save_table( File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/base.py",
line 1025, in _save_table results = self._do_insert( File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/base.py",
line 1066, in _do_insert return manager._insert( File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/manager.py",
line 85, in manager_method return getattr(self.get_queryset(),
name)(*args, **kwargs) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/query.py",
line 1790, in _insert return
query.get_compiler(using=using).execute_sql(returning_fields) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/sql/compiler.py",
line 1656, in execute_sql for sql, params in self.as_sql(): File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/sql/compiler.py",
line 1580, in as_sql value_rows = [ File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/sql/compiler.py",
line 1581, in <listcomp> [ File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/sql/compiler.py",
line 1582, in <listcomp> self.prepare_value(field,
self.pre_save_val(field, obj)) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/sql/compiler.py",
line 1530, in pre_save_val return field.pre_save(obj, add=True) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/fields/__init__.py",
line 1548, in pre_save return super().pre_save(model_instance, add)
File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/fields/__init__.py",
line 1411, in pre_save return super().pre_save(model_instance, add)
File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/fields/__init__.py",
line 905, in pre_save return getattr(model_instance, self.attname) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/query_utils.py",
line 178, in __get__ instance.refresh_from_db(fields=[field_name]) File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/base.py",
line 741, in refresh_from_db db_instance = db_instance_qs.get() File
"/var/django/liakoster.nl/blog-1/lib/python3.10/site-packages/django/db/models/query.py",
line 650, in get raise self.model.DoesNotExist(
Exception Type: DoesNotExist at /admin/blog/blog/add/
Exception Value: blog matching query does not exist.
--
Jaap van Wingerde
e-mail: j...@vanwingerde.nl
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