Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Django IntegerField doesn't work as primary_key when CharField does for unmanaged model using custom DbManager
Working with Django5.0 updating a legacy oracle database with multiple DBs/Schemas. class OtherDbManager(models.Manager): def get_queryset(self): odb = "default" if hasattr(self.model, 'my_db'): odb = self.model.my_db return super().get_queryset().using(odb) class AAAModel(models.Model): class Meta: managed = False abstract = True objects = OtherDbManager() class BBBModel(AAAModel): class Meta(AAAModel.Meta): managed = False abstract = True my_db = 'bbb_db' class WackyObj(BBBModel): class Meta(BBBModel.Meta): managed = False db_table = '"%s"."%s"' % ("BBB_DB", "WACKY_OBJ") #myinteger = models.IntegerField(primary_key=True, null=False) #queryset operations fail if this is an integer field myinteger = models.CharField(primary_key=True, null=False) available_on = models.DateField() The underlying Oracle table "WACKY_OBJ" has filed MYINTEGER as NUMBER, NOT NULL. now if I do something like: target = WackyObj.objects.get(myinteger=8675309) I'll get my object back, but if I use an IntegerField instead (commented out in WackyObj class definition above): target = WackyObj.objects.get(myinteger=8675309) I'll get: wackymod.models.WackyObj.DoesNotExist: WackyObj matching query does not exist. Is this a bug? Also, in case it's relevant, i'm using a DatabaseRouter like so: from wackymod.models import AAAModel class XXXRouter: def db_for_read(self, model, **hints): if issubclass(model, AAAModel): return model.my_db return None def db_for_write(self, model, **hints): if issubclass(model, AAAModel): return model.my_db return None def allow_relation(self, obj1, obj2, **hints): return None def allow_migrate(self, db, app_label, model_name=None, **hints): return False As shown above, I've tried … -
Django login authentification with "allauth" and "dj_rest_auth" Unable to log in with provided credentials
I'm encountering an issue when trying to POST to http://127.0.0.1:8000/api/auth/login/. The error occurs when I include 'allauth' in my INSTALLED_APPS, but I need it for Google authentication. However, the login works correctly if I don't include 'allauth'. Any insights on how to resolve this would be greatly appreciated! this is the response by the api: { "non_field_errors": [ "Unable to log in with provided credentials." ] } this is the log from backend Bad Request: /api/auth/login/ [17/Oct/2024 09:56:13] "POST /api/auth/login/ HTTP/1.1" 400 68 The body of my request: { "email":"test@mail.com", "password":"******" } urls.py: from django.contrib import admin from django.urls import include, path, re_path from django.conf.urls.static import static from django.conf import settings from allauth.account.views import ConfirmEmailView from accounts.views import GoogleLogin, GoogleLoginCallback urlpatterns = [ path('admin/', admin.site.urls), path('api/', include('app.urls')), path("api/auth/", include("dj_rest_auth.urls")), re_path( r"^api/auth/registration/account-confirm-email/(?P<key>[-:\w]+)/$", ConfirmEmailView.as_view(), name="account_confirm_email", ), path('api/auth/registration/', include('dj_rest_auth.registration.urls')), path("api/auth/google/", GoogleLogin.as_view(), name="google_login"), path( "api/auth/google/callback/", GoogleLoginCallback.as_view(), name="google_login_callback", ), ] if settings.DEBUG: urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT) Setting.py: AUTH_USER_MODEL = 'app.CustomUser' MEDIA_URL = '/document/' MEDIA_ROOT = BASE_DIR INSTALLED_APPS = [ 'jazzmin', 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'django.contrib.sites', 'corsheaders', 'rest_framework', 'rest_framework.authtoken', 'rest_framework_simplejwt', 'allauth', 'allauth.account', 'allauth.socialaccount', 'allauth.socialaccount.providers.google', 'dj_rest_auth', 'dj_rest_auth.registration', 'app', ] SITE_ID = 1 REST_FRAMEWORK = { 'DEFAULT_AUTHENTICATION_CLASSES': ( 'rest_framework_simplejwt.authentication.JWTAuthentication', ) } SIMPLE_JWT = { "ACCESS_TOKEN_LIFETIME": timedelta(hours=1), … -
Django - access data in a model from a model with a foreign key
I have reduced code to display two models for simplicity. I am very new to Django and have been following the tutorial for the 2nd time but creating my own models. class Products(models.Model): product_name = models.CharField(max_length=50,unique=True,null=False) def __str__(self): return self.product_name class Current_tests(models.Model): product = models.ForeignKey(Products, on_delete=models.CASCADE) no_samples = models.IntegerField(default=0) stagecode=models.CharField(max_length=30,default="UPDATE REQUIRED") def __str__(self): return self.stagecode Where I have got a bit stuck is on how I access the data in my Products model using the foreign key in Current tests. For example I might want the product_name associated with a specific Current_test data row id or look product_name based on a stage code value. Equally, how do I get all stagecode for a given product_name. On the tutorial its done like this: q = Question.objects.get(pk=1) # Display any choices from the related object set -- none so far. >>> q.choice_set.all() <QuerySet []> https://docs.djangoproject.com/en/5.1/intro/tutorial02/ When I swap my classes in I get "AttributeError: 'Current_tests' object has no attribute 'product_name_set'. I have looked at many questions on here that suggest using "related name", "filter" but I have not been able to access data. Thanks -
Angular+Django how to access cookie under different domain
This is a follow up to my previous question (Angular+Django CSRF token not being saved as cookie) since I understand the underlying problem now. I have a Angular and Django setup and I am trying to get it to work with CSRF tokens. The way I have it set up is, Django includes a token in the response and it's saved as a cookie. Then my Angular interceptor gets the token from the cookie storage and includes it in the header of every subsequent request. This seems to be the only way that works and it works fine locally. The problem when I deploy the backend is that the returned cookie has a different domain (used to be localhost, now it's the name of the backend host). This means that the Angular cookie service isn't able to find it, so the requests have no CSRF token. I tried using HttpXsrfTokenExtractor instead, as proposed in https://www.stackhawk.com/blog/angular-csrf-protection-guide-examples-and-how-to-enable-it/. But that doesn't find the cookie either. I tried using the built-in Angular support for CSRF tokens (https://angular.dev/best-practices/security#httpclient-xsrf-csrf-security) but it doesn't include a token in any request regardless of the setup. Someone recommended reading the cookie manually from the backend response and then setting it … -
Starting a Django Web App as a Service using nginx and uWSGI fails
I have a simple web app that I am trying to run under Ubuntu 22.04 using Django, NGINX, and uWSGI. There is a service for my application which essentially starts uWSGI. If I start the service, uWSGI fails to start. If I run manually, it works perfectly. I can connect from a remote client and get the web page. So why am I having a problem running as a service? [uwsgi] chdir = /srv/dlnWebProject/dlnWebApplication module = dlnWebApplication.wsgi:application home = /srv/dlnWebProject/dlnWebApplication/.virtualenvs/dlnWebApplication master = true processes = 4 # Use HTTP socket http = 127.0.0.1:8000 # Or use a Unix socket with a full path die-on-term = true logto = /var/log/uwsgi/dlnWebApplication.log log-5xx = true log-4xx = true log-level = debug # Optional for more detailed logs Here is my service file: [Unit] Description=uWSGI instance to serve dlnWebApplication After=network.target [Service] User=www-data # Replace with the user that should run the service Group=www-data # Replace with the appropriate group WorkingDirectory=/srv/dlnWebProject/dlnWebApplication Environment="PATH=/srv/dlnWebProject/dlnWebApplication/.virtualenvs/dlnWebApplication/bin" ExecStart=/srv/dlnWebProject/dlnWebApplication/.virtualenvs/dlnWebApplication/bin/uwsgi --ini /srv/dlnWebProject/dlnWebApplication/uwsgi.ini --uid www-data --gid www-data [Install] WantedBy=multi-user.target This starts and runs uwsgi and allows remote clients to connect and responds with the web page: sudo -u www-data /srv/dlnWebProject/dlnWebApplication/.virtualenvs/dlnWebApplication/bin/uwsgi --ini /srv/dlnWebProject/dlnWebApplication/uwsgi.ini Starting as a Service gives: Oct 17 17:51:56 dlnServer systemd[1]: Started … -
Celery task completion check isn't checking the correct task
I'm new to celery, and I'm trying to have a task to process multiple orders in parallel. I used a chord, and send a the chord id back to the front-end to periodically check the task progress, however, the id I send is actually getting the results of the parent task that I nested the chord in? I'm not really sure what's wrong. Here is my parent task and Django endpoint @shared_task def bulk_create_shipping_labels_task(skus, carrier, service, measurements, user_id): start_time = time.time() logger.info(f"Starting bulk shipping label creation for SKUs: {skus}") orders = Order.objects.filter( Q(items__sku__sku__in=skus) & Q(order_status='pending_fulfillment') ).distinct().values_list('order_id', flat=True) # Create a chord of tasks header = [process_single_order.s(order_id, user_id, carrier, service, measurements) for order_id in orders] callback = collect_bulk_results.s() # Execute the chord chord_result = chord(header)(callback) print('chord_result', chord_result) end_time = time.time() total_time = end_time - start_time logger.info(f"Bulk shipping labels processing started. Total setup time: {total_time:.2f} seconds") chord_info = { 'id': chord_result.id, 'state': chord_result.state, 'ready': chord_result.ready(), 'successful': chord_result.successful(), 'failed': chord_result.failed(), } return { 'message': 'Bulk shipping labels processing started', 'task_id': chord_result.id, 'chord_info': chord_info } @api_view(['GET']) def check_bulk_shipping_status(request, task_id): logger.info(f"Checking status of bulk shipping task: {task_id}") try: task_result = AsyncResult(task_id) if task_result.ready(): result = task_result.get() print('result', result) return Response({ 'status': 'completed', 'message': 'All tasks … -
1 min delay in Vue.js rendering
So i have an application which has django as backend and vue.js on the frontend. This app intereacts with a source with websocket connection and this source continuosuly sends values to the application. whenever these values exceed any nominal state, those exceeded values are added in the symtomslist and the main page displays the updated values instantly, as the watch function of the page is set to watch on symptomslist. So the problem i have is, when we logged in and started the simulation, the app has been rendering the new values instantly when the values were changed, but after somrtime, even if the values were changed, the page has been rendering them after 1 min(even though different people logged in at different times, the lag in rendering started to all of us at the same time). we timed it multiple times and it measured 1 min each time. but when we logout and log back in, the state is again being rendered instantly. can you tell what might be causing this issue The console is logged every second. Maybe this is the issue? -
Pagination within Django - combining two projects
I am working off of two different projects. I have the Example By 5 and a YT series that I previously used to get started with Django. I liked the Pagination from the yt series so I decided to use that method, however in the Example By process, we moved from the Class base view to a function and now the pagination does not show up. I have added what I thought was needed in the view and html page but still getting nothing. VIEW code: def post_list(request, tag_slug=None): post_list = Post.published.all() tag = None if tag_slug: tag = get_object_or_404(Tag, slug=tag_slug) post_list = post_list.filter(tags__in=[tag]) paginator = Paginator(post_list, 3) # 3 posts in each page page_number = request.GET.get('page') # Get the page number page_obj = paginator.get_page(page_number) context = {'page_obj': page_obj,'is_paginated': page_obj.has_other_pages()} # Check if pagination is needed try: posts = paginator.page(page_number) except PageNotAnInteger: posts = paginator.page(1) except EmptyPage: posts = paginator.page(paginator.num_pages) return render(request, 'blog/post/list.html', {'posts': posts, 'context' : context, 'tag': tag}) Here is the Pagination section of the html: {% if is_paginated %} {% if page_obj.has_previous %} <a class="btn btn-outline-info mb-4" href="?page=1">First</a> <a class="btn btn-outline-info mb-4" href="?page={{ page_obj.previous_page_number }}">Previous</a> {% endif %} {% for num in page_obj.paginator.page_range %} {% if page_obj.number … -
Best Approach for Text Chunking in AI Chat Agent using React and Django (Langchain) without Sockets?
I’m currently building an AI chat agent that needs to handle text chunking and display responses word by word in real-time. My setup involves a React (frontend) and Django Langchain (backend) integration. I want to achieve this without relying on sockets to stream data and instead use an approach that can fetch and display responses as they are generated, ensuring the user sees a continuous flow of words. Here's a breakdown of my current setup: Frontend: React (with or without Redux) Backend: Django integrated with Langchain for handling the AI logic What I’m Looking For: Text chunking: Best practices for chunking AI responses (word by word or partial sentences) and updating the UI in React. Real-time updates: How to fetch and display this data incrementally (e.g., fetching a stream or chunks) without using sockets. Efficient handling: Strategies for making the experience smooth for users, especially on the frontend with React. I prefer not to use WebSockets and want to stick with traditional HTTP requests if possible. Looking for an approach that handles data/response chunking seamlessly so users get real-time updates without long waits. If anyone has experience with Langchain in this context or can share ideas on how to achieve … -
"Sign In Via Google" intermediary step in django-allauth
I am implementing Google OAuth into my Django project. I set up settings.py and everything, I got this <a href="{% provider_login_url 'google' %}">Continue with Google </a> link, but when I click it, it takes me to "http://127.0.0.1:8000/accounts/google/login/" page which looks like this: Only after clicking continue button I am redirected to the correct page when I can choose Google profile I want to log in with: How can I get rid of the intermediary step and go directly to selecting a Google profile after clicking the link? -
The list of urlpatterns should not have a prefix string
In Django 5.0 I get the error: The list of urlpatterns should not have a prefix string. My code is: from django.conf.urls import url from django.urls import path, include from django.contrib import admin app_name = 'AppServer_test' # specified as string literal rather than a variable urlpatterns = [ path('admin/', admin.site.urls), path('api/v1.0/user/', include('user_accounts.urls')), path('api/v1.0/notifications/', include('notifications.urls')), path('api/v1.0/feedback/', include('feedback.urls')), # path('', include('AppServer_test.urls')), # check that AppServer_test.urls is a valid and accessible module ] I've got the same code working in Django 3.2, the error only occurs in a system using 5.0 I've tried using round brackets instead of square as in this post: Django 1.11 url pattern error, how to solve? -
How to fix path lines order error in Django/Python?
I have strange error with urls.py file two lines: path('<slug:postcategory_slug>/<slug:slug>', post_detail, name='post_detail'), path('<slug:category_slug>/<slug:slug>', product_detail, name='product_detail'), If line with post_detail stands first view.product_detail render with error 404: No Post matches the given query. Request Method: GET Request URL: http://127.0.0.1:8000/pryamye-shlifmashiny/pnevmoshlifmashina-s150z66a Raised by: apps.blog.views.post_detail And view.post_detail works well But if line with product_detail stands first, like path('<slug:category_slug>/<slug:slug>', product_detail, name='product_detail'), path('<slug:postcategory_slug>/<slug:slug>', post_detail, name='post_detail'), view.product_detail works well But view.post_detail render with 404 error No Post matches the given query. Request Method: GET Request URL: http://127.0.0.1:8000/posts/pnevmaticheskij-udarnyj-gajkovert-at-238 Raised by: apps.store.views.product_detail Other config looks well, and URLS works PLS help me figure out what the problem is I do not know what the problem is, all the other files are fine, -
Issue in executing Django Server using python manage.py runserver
The following are the steps that I followed on my windows machine. pls let me know what the issue could be. And help me run my django server. Thanks a lot, Bhaskar Gundu PS C:\Windows\system32> .\MyVEnv2\Scripts\activate (MyVEnv2) PS C:\Windows\system32> django-admin startproject puddle django-admin : CommandError: 'C:\Windows\system32\puddle' already exists At line:1 char:1 + django-admin startproject puddle + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (CommandError: '... already exists:String) [], RemoteException + FullyQualifiedErrorId : NativeCommandError (MyVEnv2) PS C:\Windows\system32> cd puddle (MyVEnv2) PS C:\Windows\system32\puddle> ls Directory: C:\Windows\system32\puddle Mode LastWriteTime Length Name ---- ------------- ------ ---- d----- 10/17/2024 4:26 PM puddle -a---- 10/17/2024 4:27 PM 131072 db.sqlite3 -a---- 10/17/2024 4:26 PM 684 manage.py (MyVEnv2) PS C:\Windows\system32\puddle> python manage.py makemigrations No changes detected (MyVEnv2) PS C:\Windows\system32\puddle> python manage.py migrate Operations to perform: Apply all migrations: admin, auth, contenttypes, sessions Running migrations: No migrations to apply. (MyVEnv2) PS C:\Windows\system32\puddle> python manage.py runserver python : Watching for file changes with StatReloader At line:1 char:1 + python manage.py runserver + ~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (Watching for fi...th StatReloader:String) [], RemoteException + FullyQualifiedErrorId : NativeCommandError I tried executing following the required steps and am expecting to have a successful running of my Django Server. -
Django Summernote plugin upload image by userid
I am using the Summernote plugin for Django and my target is to allow users to upload media inside the server. At the moment files are organized (by default) in a folder named with the upload date. Something like: "ProjectName/media/django-summernote/2024-10-11/989d2f98-ad3c-47d6-9c07-e5f6d0c731e6.png" "ProjectName/media/django-summernote/2024-10-17/13d646b8-d7cd-4e04-a76a-804a1ee0d090.jpg". Is it possible to change the path and include the user_id in the path? Something like "ProjectName/media/django-summernote/User100/989d2f98-ad3c-47d6-9c07-e5f6d0c731e6.png" "ProjectName/media/django-summernote/User200/13d646b8-d7cd-4e04-a76a-804a1ee0d090.jpg". What I have done I made these edits in the settings.py file # Summernote plugin def summernote_upload_to(request, filename): user = request.user # Create the dynamic path upload_path = f'user_upload/{user}' return os.path.join(upload_path) SUMMERNOTE_CONFIG = { 'attachment_upload_to': summernote_upload_to, 'summernote': { 'attachment_filesize_limit': 200 * 1000 * 1000, # specify the file size 'width': '100%', 'height': '480', } } but, when I upload an image, I get an error AttributeError: 'Attachment' object has no attribute 'user' -
SMTP AUTH extension not supported by server in Django
Im being building an project using django framework and for now i wanted to test wether i can send emails to any users locally. So wrote this code in settings.py and got the error saying that SMTP AUTH extension not supported by server. So i researched everything but didnt find why this error has been raised and do smtp needs authentication? Please let know how i can solve this problem settings.py EMAIL_BACKEND = "django.core.mail.backends.smtp.EmailBackend" EMAIL_HOST = config('EMAIL_HOST',cast=str, default = 'smtp.gmail.com') EMAIL_PORT = config('EMAIL_PORT',cast=str,default="587") EMAIL_USE_TSL = config('EMAIL_USE_TSL',cast=bool,default=True) EMAIL_USE_SSL = config('EMAIL_USE_SSL',cast=bool,default=False) EMAIL_HOST_USER = config('EMAIL_HOST_USER',cast=str,default=None) EMAIL_HOST_PASSWORD = config('EMAIL_HOST_PASSWORD',cast=str,default=None) ADMIN_USER_NAME = config('ADMIN_USER_NAME',default = "Admin user") ADMIN_USER_EMAIL = config('ADMIN_USER_EMAIL',default = None) MANAGERS = [] ADMINS = [] if all([ADMIN_USER_NAME, ADMIN_USER_EMAIL]): ADMINS += [ (f'{ADMIN_USER_NAME}', f'{ADMIN_USER_EMAIL}') ] MANAGERS = ADMINS Error im getting is this : Traceback (most recent call last): File "C:\Indraneel_coding\Django\Saas\src\manage.py", line 22, in <module> main() File "C:\Indraneel_coding\Django\Saas\src\manage.py", line 18, in main execute_from_command_line(sys.argv) File "C:\Indraneel_coding\Django\Saas\venv\Lib\site-packages\django\core\management\__init__.py", line 442, in execute_from_command_line utility.execute() File "C:\Indraneel_coding\Django\Saas\venv\Lib\site-packages\django\core\management\__init__.py", line 436, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "C:\Indraneel_coding\Django\Saas\venv\Lib\site-packages\django\core\management\base.py", line 413, in run_from_argv self.execute(*args, **cmd_options) File "C:\Indraneel_coding\Django\Saas\venv\Lib\site-packages\django\core\management\base.py", line 459, in execute output = self.handle(*args, **options) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Indraneel_coding\Django\Saas\venv\Lib\site-packages\django\core\management\commands\sendtestemail.py", line 46, in handle mail_admins(subject, "This email was sent to the site admins.") File "C:\Indraneel_coding\Django\Saas\venv\Lib\site-packages\django\core\mail\__init__.py", line … -
Django `squashmigrations` leaving lots of RemoveField
I am trying to use Django manage.py squashmigrations to reduce the number of migration files and migration operations, after years of accumulation. Django should supposedly optimize the migrations and it does so to some extent. Other cases, that should be obvious optimization are missed though, for example below where a simple AddField+RemoveField field is not. Only the AddField gets inlined into the CreateModel, but then the RemoveField still remains, instead of completely leaving out the field from CreateModel. Ideally, there shouldn't be a single RemoveField left after a squash, if I'm not mistaken. Migration 1: Add the model class Migration(migrations.Migration): dependencies = [("data", "0104")] operations = [ migrations.CreateModel( name="MyModel", fields=[... ] ) ] Migration 2: Add a field to the model class Migration(migrations.Migration): dependencies = [("data", "0107")] operations = [ migrations.AddField( model_name="mymodel", name="process_name", field=models.CharField(default=None, max_length=300, null=True), ), ] Migration 3: Remove the same field from the model class Migration(migrations.Migration): dependencies = [("data", "0121")] operations = [migrations.RemoveField(model_name="mymodel", name="process_name")] Resulting squashed migration: class Migration(migrations.Migration): replaces = [...] initial = True operations = [ migrations.CreateModel( name="MyModel", fields=[ ( "process_name", # Should be possible to leave out ??? models.CharField(default=None, max_length=300, null=True), ), ], ), migrations.RemoveField(model_name="mymodel", name="process_name"), # ??? ] Is this expected or what … -
Issue Displaying All Colors of a Product Variant in Django Template
I'm working on a Django application where I have a Product model with a many-to-many relationship with a Color model. I want to display all colors associated with a product variant on its detail page. However, when I click on a specific color (e.g., white), the page only shows that color instead of all available colors for the product variant. Here’s the relevant code: Models: class Color(models.Model): code = models.CharField(max_length=7) # Hex color code image = models.ImageField(upload_to='colors/') # Image field for color representation product_varients = models.ManyToManyField('Product', related_name='color_variants', blank=True) class Product(models.Model): pid = ShortUUIDField(length=10, max_length=100, prefix="prd", alphabet="abcdef") user = models.ForeignKey(CustomUser , on_delete=models.SET_NULL, null=True) category = models.ForeignKey(Category, on_delete=models.SET_NULL, null=True, related_name="category") color = models.ManyToManyField(Color, blank=True) View Function: def product_varient_detail_view(request, pid): try: product_variant = Product.objects.get(pid=pid) except Product.DoesNotExist: return render(request, "core/error_page.html") wishlist = wishlist_model.objects.filter(user=request.user) if request.user.is_authenticated else None sub_category = SubCategory.objects.all() categories = Category.objects.prefetch_related('subcategories').order_by('?')[:4] nav_category = Category.objects.filter(special_category=True).prefetch_related('subcategories').order_by('?')[:4] # Initialize variables colors = product_variant.color_variants.all() # Get the colors of the product variant linked_colors = set() # Use a set to avoid duplicates # Get linked colors for color in colors: for linked_product in color.product_varients.exclude(id=product_variant.id): # Exclude current product linked_colors.update(linked_product.color_variants.all()) # Update the set with linked product colors # Convert linked_colors back to a list for the … -
How to Implement Model Versioning in Django Without Affecting Transactional Data
MODELS Transaction Model class TransactionOrders(models.Model): product = models.ForeignKey(Product, on_delete=models.DO_NOTHING) customer = models.ForeignKey(Customer, on_delete=models.DO_NOTHING) ... class Product(models.Model): name = models.CharField(max_length=55, unique=True) title = models.TextField() ... class Customer(models.Model): customer_id = models.CharField(max_length=55, primary_key=True) name = models.CharField(max_length=100) # there might be more models Imagine we have some entries in transaction model now admin updated or soft deleted some entries in product | customer models issue: Old data modified either with new value or showing ids (whose entries are updated | deleted respectively) Requirement: How can I avoid so above issue so that when user creating new order updated value reflected & when user visit history order then it show's entries which has values at that time Note: If I haven't able to clarify let me know I try to put more data to make my query understandable -
Django: Unable to display colors of linked products
I'm having trouble displaying the colors of linked products in my Django template. I have a Product model with a many-to-many relationship with a Color model, and I want to display the colors of the linked products. Here is my view: def product_varient_detail_view(request, pid): # ... colors = [] linked_colors = [] if product_variant.color.exists(): colors = product_variant.color.all() if product_variant.color.exists(): for color in product_variant.color.all(): for linked_product in color.product_varients.all(): if linked_product != product_variant: linked_colors.extend(linked_product.color.all()) context = { # ... 'colors': colors, 'linked_colors': linked_colors, } return render(request, "core/product_varient_detail.html", context) And here is my template: {% if colors %} {% for c in colors %} <div class="color__radio"> <input type="radio" id="color_{{ c.id }}" name="color" data-image-url="{{ c.image.url }}" class="color-input" data-url="{% url 'core:product_varient_detail' c.product_varients.first.pid %}?color={{ c.coid }}"> <label class="color__radio-label" for="color_{{ c.id }}" style="background-color: {{ c.code }};"></label> </div> {% endfor %} {% endif %} {% if linked_colors %} {% for c in linked_colors %} <div class="color__radio"> <input type="radio" id="color_{{ c.id }}" name="color" data-image-url="{{ c.image.url }}" class="color-input" data-url="{% url 'core:product_varient_detail' c.product_varients.first.pid %}?color={{ c.coid }}"> <label class="color__radio-label" for="color_{{ c.id }}" style="background-color: {{ c.code }};"></label> </div> {% endfor %} {% endif %} However, the colors of the linked products are not being displayed. I've tried debugging the code, but I'm not … -
Where do I put Django Debug Terminal in middleware
Django Debug Terminal's documentation says The order of MIDDLEWARE is important. You should include the Debug Toolbar middleware as early as possible in the list. However, it must come after any other middleware that encodes the response’s content, such as GZipMiddleware. But this can be a bit tricky. For example, in my settings.py I have MIDDLEWARE = [ 'django.middleware.security.SecurityMiddleware', 'django.middleware.common.CommonMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', ] In this situation is the best place to put debug_toolbar.middleware.DebugToolbarMiddleware right after django.middleware.common.CommonMiddleware since that uses force_text while AuthenticationMiddleware, SessionMiddleware and MessageMiddleware don't seem to encode anything? -
Why does Django Rest Framework Pagination work with Django.http JsonResonse() and not rest_framework.response Response()
I've followed the tutorial on enabling/creating custom pagination for ModelViewSets in Django Rest Framework (DRF). But the custom pagination doesn't show up as part of the content of the response. I only get my results split according to the 'PAGE_SIZE' setting in an object labeled data with no count, or page_size as defined in my custom pagination class. I added the following lines in my setting.py file: REST_FRAMEWORK = { 'DEFAULT_PAGINATION_CLASS': 'core.pagination.CustomPagination', 'PAGE_SIZE': 2, ... } Custom pagination class: from rest_framework import pagination from rest_framework.response import Response class CustomPagination(pagination.PageNumberPagination): page_size = 2 def get_paginated_response(self, data): return JsonResponse({ 'page_size': self.page_size, 'count': self.page.paginator.count, 'results': data }) My ModelViewSet class PersonViewSet(viewsets.ReadOnlyModelViewSet): """ A simple ViewSet for listing or retrieving and creating people. """ queryset = Person.objects.all() permission_classes = (IsAuthenticated,) serializer_class = PersonSerializer pagination_class = CustomPagination I have tried changing the ModelViewSet to various other types such as genericViewSet and defining my list() functions etc. The results from the list API endpoint I expected: { "page_size": 2, "count": 2548, "results": [ { "type": "Person" }, { "type": "Person" } ] } The results from the list API endpoint I got: { "data": [ { "type": "Person" } }, { "type": "Person" } } ] … -
Encountering 500 Internal Server Error on Django API POST request
I am encountering a 500 Internal Server Error when trying to send a POST request to a Django API to create an object. I have checked my code but cannot identify the source of the issue. Here’s the code I’m using: Serializer class DeliverableSerializer(serializers.ModelSerializer): class Meta: model = Deliverable fields = ("num", "project", "reviewer", "deliverable_type", "description", "due_date", "id", "draft") Views class DeliverableAPIView(APIView): def post(self, request, format=None): serializer = DeliverableSerializer(data=request.data) if serializer.is_valid(): instance = serializer.save() return Response(serializer.data, status=status.HTTP_201_CREATED) else: return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST) def put(self, request, pk, format=None): try: deliverable = Deliverable.objects.get(pk=pk) serializer = DeliverableSerializer(deliverable, data=request.data) if serializer.is_valid(): serializer.save() return Response(serializer.data) else: return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST) except Exception as e: return Response({"error": "An unexpected error occurred."}, status=status.HTTP_500_INTERNAL_SERVER_ERROR) URLs path('api/deliverables/', DeliverableAPIView.as_view(), name='deliverable-list'), # For POST path('api/deliverables/<int:pk>/', DeliverableAPIView.as_view(), name='deliverable-detail'), # For PUT POST Request in My Script def post_data(endpoint, data): """Send data to the API via POST request.""" try: response = requests.post(API_URL + endpoint, json=data, timeout=10) response.raise_for_status() # Raises an HTTPError for bad responses return response.json() # Return the JSON response if needed except requests.exceptions.HTTPError as err: raise Exception(f"HTTP error occurred while posting to {endpoint}: {err}") # For HTTP errors except requests.exceptions.RequestException as err: raise Exception(f"Error posting data to {endpoint}: {err}") When I try to … -
Simple JWT TokenRefreshView: response has two types
I'm having trouble accessing the data attribute on a Response object in Django Rest Framework after refreshing the access token. factory = APIRequestFactory() new_request = factory.post( "/api/token/refresh/", {"refresh": refresh_token}, format="json", ) new_request.META["CONTENT_TYPE"] = "application/json" refresh_view = TokenRefreshView.as_view() refresh_response = refresh_view(new_request) print(type(refresh_response)) refresh_response.data["message"] = "Token refresh successful" When I run this code, the print statement correctly outputs <class 'rest_framework.response.Response'>. However, Pylint is complaining that I cannot access the data attribute. Cannot access attribute "data" for class "HttpResponse" Attribute "data" is unknownPylancereportAttributeAccessIssue -
my ide doesnt recognize django-admin it says django is already installed
so basically iam currently using vscode as my ide and i try to install django and it says the requirements already satisfied however when i try to run django-admin and start a project it doesnt recognize it and gives an error saying: django-admin : The term 'django-admin' is not recognized as the name of a cmdlet, function, script file, or operable program. i tried the same thing on pycharm and it works perfectly and im looking for solutions everywhere i have tried uninstalling django but it didnt work -
Where remove or set initial rows for database in Django?
I store some temporary data in a database linked to a web socket. After a server reboot, the web sockets die and I want to delete all data from the corresponding table. Tell me where ideologically this should be done or such data should not be stored in the database at all? I tried putting this block in AppConfig.ready but the console warning says it's the wrong place. from django.apps import AppConfig class GameConfig(AppConfig): default_auto_field = 'django.db.models.BigAutoField' name = 'game' def ready(self) -> None: LobbySetting = self.get_model('LobbySetting') LobbySetting.objects.all().delete() Warning in console: RuntimeWarning: Accessing the database during app initialization is discouraged. To fix this warning, avoid executing queries in AppConfig.ready() or when your app modules are imported. warnings.warn(self.APPS_NOT_READY_WARNING_MSG, category=RuntimeWarning)
