Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Django API header cannot be fetched
Frontend is sending POST request with code and then I want to return qr code and a token. When I try to fetch 'token' header it returns none @api_view(['POST']) @csrf_exempt def Create_new_doc(request): code = json.loads(request.body) code = code['code'] characters = string.ascii_letters + string.digits token = ''.join(random.choice(characters) for _ in range(20)) generate_qr_code.generate_qr(token) image_path = f"/files/qr_{token}.jpg" image_file = open(image_path, 'rb') response = FileResponse(image_file, content_type='image/jpeg') response['token'] = token response.status_code = 200 return response This is frontend part - getting image url works just fine fetch('http://127.0.0.1:8000/create-new', requestOptions) .then((response) => { if (response.ok) { return response.blob().then((blob) => { var tokeN = response.headers.get('token'); console.log(response.headers.get('token')) console.log('Token:', tokeN); const imageUrl = URL.createObjectURL(blob); console.log('Image URL:', imageUrl); return { tokeN, imageUrl }; }); } Yeah, literary have no idea why it does not work -
How to run an infinite loop function in django celery on startup?
I want to make a django website that will display data from the database. And the parser will add information to this database. And I want to make it so that during the launch of the site it also starts (only once) and parses information in an endless loop. Or make it so that django celery calls a function, but only if this function is not already called. And I would like to know how to do it. I tried to write this in the view.py file from .tasks import my_task my_task.delay() But as I understand it, this is bad because when I wrote any command in the terminal, I opened a browser for parsing -
Django CSRF Protect During POST to External URL?
Context I am building a website in Python using the Django Framework and Stripe for user payment. I am currently In the testing/debug phase in local development, still far from a production build. Currently at a brick wall with CSRF Protection and can not find a solution. My checkout works perfectly with no CSRF Protection. There are other topics of very similar issues on here but due to my lack of knowledge around CSRF protection itself, I hope someone can enlighten me on what to do in my specific scenario. This situation should have a common practice solution but I've studied the majority of both Django and Stripe's Documentation with no luck. Criticism is welcome, this is my first StackOverflow post. The Problem I have a view function which enables the purchase of a product on my site by sending the user to Stripes External Checkout page. views.py @csrf_exempt # CSRF Protection disabled for testing def create_checkout_session(request): if request.method == 'POST': try: checkout_session = stripe.checkout.Session.create( ... ) except Exception as e: ... return redirect(checkout_session.url) During testing I disabled CSRF Protection on my view function using Django's @csrf_exempt decorator. I did this in order to bypass the '403 CSRF Verification failed' … -
Django + Elastcisearch index is not generate getting direct access to system indices will be prevented by default
While trying to create elasticsearch index using rebuild command (myenv) C:\Misc\Django_elasticsearch>python manage.py search_index --rebuild C:\Misc\Django_elasticsearch\myenv\Lib\site-packages\elasticsearch\connection\base.py:200: ElasticsearchWarning: this request accesses system indices: [.security-7], but in a future major version, direct access to system indices will be prevented by default warnings.warn(message, category=ElasticsearchWarning) Are you sure you want to delete the '' indices? [y/N]: y But index did not generate I have added ELASTICSEARCH_DSL and added rest_framework,django_elasticsearch_dsl,django_elasticsearch_dsl_drf in seetings.py Please help... Check Elasticsearch server: Confirm that your Elasticsearch server is running and accessible. Getting proper response from localhost:9200 -
django-haystack Decimal __lt query
I have django project with django-haystack and xapian backend. I have created an index: sugar=indexes.DecimalField(null=True) Now I'm trying to filter the SearchQuery with different arithmetical operators, and I'm getting strange results (trying lt, lte, gt and gte with filter like: sqs.filter(sugar__lt=60)). I'm then filtering out None's, sorting the results and converting to float to get a better view on it. sqs.count()=130, len(sqs_lt)=114, len(sqs_gt)=130, len(sqs_lte)=0, len(sqs_gte)=16 vals_lt=[0.1, 0.1, 0.3, 0.3, 0.4, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.6, 0.6, 0.7, 0.8, 0.8, 0.8, 0.8, 1.0, 1.1, 1.1, 1.1, 1.1, 1.1, 1.3, 1.33, 1.4, 1.5, 1.8, 1.8, 2.0, 2.0, 2.0, 2.0, 2.1, 2.2, 2.2, 2.4, 2.5, 2.5, 2.78, 2.8, 2.9, 3.0, 3.07, 3.2, 3.2, 3.4, 3.6, 3.9, 4.0, 4.9, 6.0, 6.0, 6.2, 6.3, 6.3, 6.6, 12.0, 12.0, 12.4, 12.5, 13.7, 14.0, 18.0, 20.0, 22.0, 22.0, 23.0, 24.1, 24.8, 26.0, 26.0, 26.5, 27.7, 30.96, 34.0, 39.0, 40.0, 40.0, 41.0, 42.2, 42.5, 43.0, 46.0, 48.0, 51.1, 52.0, 54.0, 100.0] vals_gt=[0.1, 0.1, 0.3, 0.3, 0.4, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.6, 0.6, 0.7, 0.8, 0.8, 0.8, 0.8, 1.0, 1.1, 1.1, 1.1, 1.1, 1.1, 1.3, 1.33, 1.4, 1.5, 1.8, 1.8, 2.0, 2.0, 2.0, 2.0, 2.1, 2.2, 2.2, 2.4, 2.5, … -
Django and Ajax: prevent a page from refreshing when I click on the button (without jQuery)
In the home.hmtl page i have a combobox (independent, it is not connected to the database but to a list) and a textarea. I don't use the database. When I click on the button then I would like to print some text in the textarea (text which is in a list of the views.py file) What do I want to get? Everything happens correctly, but the page reloads immediately after clicking on the button. I tried to solve the problem using only Django, but I failed (maybe it's not possible), so I read what solutions are to use Ajax, jQuery and something in Javascript. I would like to solve the problem with AJax (without jQuery, and possibly without Javascript). I'm new to Django Considerations: I searched many question on Stackoverflow or various tutorials, but I couldn't solve. Apparently even though it's are similar questions, each solution is a different case with different problem and solutions. One solution I've found often, but it's not for me, is to replace type=submit with type=button and then add onclick which binds to a function in Javascript. I wouldn't need this function in Javascript, because I would like to keep everything in py files (the … -
IIS ignore persian character in url django project
I have developed a Django app on IIS that has some Persian URLs parts. The Problem is that the application completely ignore Persian parts. i config .NET Globalization like this:enter image description here but the urls ignored When I run the project locally on the server, the URLs work -
Trying to Publish a django app with a MySQL Database and a React front end to Heroku
I am trying to publish a django app with a MySQL database and a React front end to Heroku. It runs locally just fine, but I cannot get it to work on Heroku. My code is here: https://github.com/rmoscoe/odyssey, but there's not much of it yet. I'm just getting started. I'm able to push to Heroku, and the build and deployment complete with no errors. But when I visit the site, it just says "Bad Request (400)." The console similarly just says "Failed to load resource: the server responded with a status of 400 (Bad Request)." The logs don't say much more: "at=info method=GET path="/" host=odyssey-db3a471a3d45.herokuapp.com request_id=4f1b44ca-f023-4e72-b1be-d03f9dbde384 fwd="104.32.1.116" dyno=web.1 connect=0ms service=162ms status=400 bytes=428 protocol=https." I've scoured the internet and tried many different solutions, but nothing has made a difference. Some examples: manually running collectstatic before pushing using the heroku terminal to run npm install and npm start on the client side assorted changes to my Procfile and settings.py manually copying the contents of the static directory into the staticfiles directory Can anyone help me? Thanks! -
Deploying Django project to fly.io
I'm trying to deploy my Django project to fly.io and get strange error Running nameless-paper-520 release_command: python hw10/manage.py migrate release_command 5683d609cd778e completed successfully This deployment will: * create 2 "app" machines No machines in group app, launching a new machine Error: error creating a new machine: failed to launch VM: To create more than 1 machine per app please add a payment method. I do not want to create two machines, but only one. Where should I write this in fly.toml or Dockerfile? -
Django Tastypie - Inserting parent and child objects in a single atomic transaction
I am trying to implement REST API using PostgreSQL, Tastypie and Django. I managed to implement [GET] API endpoint, but I'm having troubles with implementing [POST] API operation. The cause of my troubles is the fact that I have a table "parent" which can have many child objects defined in Django. The definition of models is below: ` class Parent(models.Model): title = models.CharField(max_length=200, null=False, blank=False, unique=True) owner = models.ForeignKey(User, on_delete=models.SET_NULL, null=True, blank=True) is_private = models.BooleanField(null=False, blank=False, default=False) class Meta: db_table = 'test_parent' class Child(models.Model): title = models.CharField(max_length=200, null=False, blank=False) parent = models.ForeignKey(Parent, on_delete=models.CASCADE, null=False, blank=False, related_name='components') is_mandatory = models.BooleanField(null=False, blank=False, default=False) is_visible_in_table = models.BooleanField(null=False, blank=False, default=False) is_visible_in_form = models.BooleanField(null=False, blank=False, default=False) options = models.JSONField(null=True, blank=False) note = models.TextField(null=True, blank=True) class Meta: db_table = 'test_child' ` This is the definition of Tastypie resources: ` class ChildResource(ModelResource): parent = fields.ToOneField('app.api.resources.test.ParentResource', attribute='parent') class Meta: list_allowed_methods = ('get', 'post',) detail_allowed_methods = ('get', 'post', 'patch', 'delete',) authorization = AnonymousCanPostAuthorization() authentication = MultiAuthentication( ApiKeyAuthentication(), CookieBasicAuthentication(), Authentication(), ) resource_name = 'test/child' queryset = Child.objects.prefetch_related('component').filter(is_active=True) always_return_data = True filtering = { "id": ('exact',), "components": ALL_WITH_RELATIONS, } class ParentResource(ModelResource): owner = fields.ToOneField( UserResource, attribute='owner', full=True, null=True ) components = fields.ToManyField( ChildResource, attribute='components', full=True, null=True ) class Meta: resource_name = … -
Nginx with GZIP not compressing Django responses even when it is enabled
I have a Django project that runs via Nginx web server. I've enabled gzip settings on nginx.conf like this: gzip on; gzip_vary on; gzip_proxied any; gzip_comp_level 6; gzip_buffers 16 8k; gzip_http_version 1.1; gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript; gzip_min_length 256; Now I have nginx upstream like this: upstream example { keepalive 500; server 127.0.0.1:8001; } server { listen 0.0.0.0:80 server_name example.com } location / { proxy_pass http://ikhlas; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Forwarded-Proto $scheme; } In Django, I have a method that returns JSON with 16MB of size when I enabled gzip it returned to me same JSON with 16MB of size while having Content-Encoding: gzip response header. Why it is not compressing Django responses even if gzip is enabled and returns Content-Encoding header? -
Annotating Many2Many link works but only on SQLite (testing) not MariaDB (Production)
I am trying to annotate a model that includes a many2many link: class Link(models.Model): products = models.ManyToManyField(Product, related_name = "%(class)s_name", related_query_name = "product_link_qs", blank = True) position = models.ForeignKey(Position, on_delete = models.CASCADE) class Position(models.Model): place_id = models.PositiveIntegerField(unique = True) store = models.ForeignKey(Store, on_delete = models.CASCADE) class Store(models.Model): name = models.CharField("name", max_length = 32) in my admin I used annotate() to couple the information: @admin.register(Link) class LinkAdmin(admin.ModelAdmin): list_display = ["product", "get_store"] list_filter = ["position__store"] ### extend by product_link_qs related name property to make field sortable in the admin def get_queryset(self, request): qs = super().get_queryset(request) return qs.annotate(storename = Product.objects.filter(product_link_qs = OuterRef("id")).values("store__name")) @admin.display(description = "store name", ordering = "storename") def get_store(self, obj): if obj.asset: return obj.device.store or None return obj.storename or None only one product is linked to a position: this works perfectly fine in SQLite on testing and MariaDB in production adding a second relation to a link: works on SQLite in testing, but gives: django.db.utils.OperationalError: (1242, 'Subquery returns more than 1 row') -
Krakend Multiple Authorization Methods
I have an application that exposes a few endpoints which, for backward compatibility purposes, support both JWT and Basic Authorization methods. Recently we have decided to use KrakenD as the API Gateway for this application, now I have an issue with the authorization of the mentioned endpoints. I use auth/validator plugin for JWT validation and it works fine. But I'm looking for a way to bypass it when it fails and proxy the request directly to the application to use Basic Auth on the application side. I had an idea about writing a plugin for KrakenD to decide whether the Authorization header is a Basic or Bearer and then decide what to do with the request, or else to see if the JWT validation has failed and then proxy the request to the backend. I wasn't able to do any of those, so I'm looking for new ideas or an already existing solution for this. -
connect css and js to html in Django
I can't connect css and java script files to my html. I try diffrent ways to give it addres but It does'nt work. when I run my server my html file just show. here is a picture that shows how I address in diffrent ways. -
Django three-step registration
Please tell me, I'm doing a 3-step registration, using 3 forms that inherit from ModelForm and view classes that inherit from FormView. The first two pages were ok. On the first, I write down the first name, last name, mail and number in the session. On the second, I confirm the mail using the code. But there is a problem with the third page. There should be two fields: Enter password Enter the password again. And here in the form I don’t know how to make the password validation be from Django (well, that is, checking for length, characters, similarity between the first and second input field, etc.). Tell me, please, how to do this? From what class to inherit in the form? FormView class registration_step3(FormView): form_class = RegistrationForm3 template_name = 'html/log_&_reg/registration_add_password.html' success_url = reverse_lazy('authorization') def dispatch(self, request, *args, **kwargs): if 'registration_data' not in self.request.session: return redirect(reverse_lazy('registration_step1')) return super().dispatch(request, *args, **kwargs) def form_valid(self, form): print("Форма прошла валидацию успешно.") registration_data = self.request.session.get('registration_data') print(registration_data) if registration_data: user = CustomUser.objects.create( first_name=registration_data['first_name'], last_name=registration_data['last_name'], email=registration_data['email'], phone_number=registration_data['phone_number'], notification_access=registration_data['notification_access'], email_verified=True, password=form.cleaned_data['password2'], ) del self.request.session['registration_data'] self.request.session.save() return super().form_valid(form) else: # Handle the case when registration_data is not found in the session return self.form_invalid(form) def form_invalid(self, form): print("Форма не … -
Django how to change CSS according the app you are in
I am pretty new with Django, I am customizing my admin section and I'd like to change the CSS according to the app I am browsing. Is it possible? I noticed that the uploaded CSS is the one in the first static folder found by the system. Is there some trick to do this? I tried to make a static folder in every app but the selected CSS is always the first. Thank you all. -
IndexError: list assignment index out of range (filling an array in a for loop with count() of objects)
I want to fill the array 'v' with the number of doctors in each department, I got this error : v[i]=Doctor.objects.all().filter(idDept__deptName__contains=s.deptName).count() ~^^^ IndexError: list assignment index out of range views.py def accueilAdmin(request): if not request.user.is_staff: return redirect('loginAdmin') depts=Department.objects.all() v=[] i=1 for s in depts: v[i]=Doctor.objects.all().filter(idDept__deptName__contains=s.deptName).count() i+=1 models.py class Department(models.Model): deptName = models.CharField(max_length=50, null=False) ... return self.deptName class Doctor(models.Model): name= models.CharField(max_length=50) ... idDept = models.ForeignKey(Department, on_delete=models.CASCADE, null=True) def __str__(self): return self.name I don't know how to solve it, I would appreciate your help, thank you. -
Whats wrong in dockerfile?
I am trying to run docker compose build then use the comand docker compose up and get next error: Attaching to django-postgresql-gunicorn-nginx-dockerized-master-db-1, django-postgresql-gunicorn-nginx-dockerized-master-web-1 Error response from daemon: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: exec: "/usr/src/app/entrypoint.sh": permission denied: unknown Help me guys please to solve this error # pull official base image FROM python:3.8.3-alpine # set work directory WORKDIR /usr/src/app # set environment variables ENV PYTHONDONTWRITEBYTECODE 1 ENV PYTHONUNBUFFERED 1 # install psycopg2 dependencies RUN apk update \ && apk add postgresql-dev gcc python3-dev musl-dev # install dependencies RUN pip install --upgrade pip COPY ./requirements.txt . RUN pip install -r requirements.txt # copy entrypoint.sh COPY ./entrypoint.sh . # copy project COPY . . RUN chmod +x /usr/src/app/entrypoint.sh # run entrypoint.sh ENTRYPOINT ["/usr/src/app/entrypoint.sh"] -
Add field don't exist in model in fields at serializer
how can i add field in serializer... This field is not in model no more details thank you ça me renvoie une erreur "Got AttributeError when attempting to get a value for field etat_civil on serializer Serializer_Professeur_Assistant. The serializer field might be named incorrectly and not match any attribute or key on the DescPersonne_Prod instance. Original exception text was: 'DescPersonne_Prod' object has no attribute 'etat_civil'." -
Python telethon login telegram from my website
Hi friends I write template in Django.User enter phone number and my telethon code sending code after user enter code new input. I want to that user login in own telegram account. But this code not working. 1 STEP: phone_number = 'user number' client = TelegramClient('session_name', api_id, api_hash) phone_code_hash = client.send_code_request(phone_number).phone_code_hash client.connect() f not client.is_user_authorized(): client.send_code_request(phone_number) 2 STEP user = client.sign_in(phone_number,'89065') give error ConnectionError: Cannot send requests while disconnected User login with telethon in Django. But I cant -
Neo4J Django neomodel not showing nodes in the explorer
I'm new to Graph database and using Neo4j database with neomodel library in Django application. The settings are defined as NEOMODEL_NEO4J_BOLT_URL = os.environ.get('NEO4J_BOLT_URL') NEOMODEL_SIGNALS = True NEOMODEL_FORCE_TIMEZONE = False NEOMODEL_ENCRYPTED_CONNECTION = True NEOMODEL_MAX_POOL_SIZE = 50 and the models.py file has the following model class Person(StructuredNode): SEXES = { 'm': 'Male', 'f': 'Female', } id = properties.UniqueIdProperty() first_name = properties.StringProperty(unique_index=True, required=True, max_length=100) gender = properties.StringProperty(choices=SEXES, required=True) In Django shell python manage.py shell, creating a node as >>> from family_tree.models import Person >>> person = Person(first_name='Anuj', gender='m') >>> person.save() <Person: {'id': '572d0b8ff3a8402ba58c4a03cace78ba', 'first_name': 'Anuj', 'middle_name': None, 'last_name': None, 'gender': 'm', 'date_of_birth': None, 'date_of_death': None, 'created': datetime.datetime(2023, 6, 24, 7, 44, 26, 223871, tzinfo=<UTC>)}> When the database explorer has no nodes in it. Also refreshing node gives DoesNotExist exception >>> person.refresh() Traceback (most recent call last): File "<console>", line 1, in <module> File "/usr/local/lib/python3.9/site-packages/neomodel/core.py", line 616, in refresh raise self.__class__.DoesNotExist("Can't refresh non existent node") neomodel.core.PersonDoesNotExist: (PersonDoesNotExist(...), "Can't refresh non existent node") -
I can not run server
after python manage.py runserver using Pycharm that $ python manage.py runserver Python I reciver this message Exception ignored in thread started by: <function check_errors..wrapper at Traceback (most recent call last):Exception ignored in thread started by: <function check_errors..wrapper at Traceback (most recent call last): and in many files this proble, python manage.py runserver 8080 python manage.py runserver even on visual studio same error -
Django order by parent object with many to many relation with child object
I have two models class Course(models.Model): name = models.CharField(blank=True, null=True) class Account(models.Model): courses = models.ManyToManyField(Course, related_name=account_courses) I want to order by Course model by count of accounts I have tried by creating a property method @property def course_accounts(self): return self.account_courses.count() I am able to count the objects using this method but not able to order by objects using courses = Course.objects.all().order_by('course*accounts') It throws field error with: "Cannot resolve keyword 'course*account' into field" -
Post method in DetailView?
I wanna to use form in detail page,Then views access get and post ... from django.views.generic import DetailView from .forms import CommentForm Class ArticleDetailView(DetailView): model = Article def get_context_data(self,*args,**kwargs): context = super().get_context_data(*args,**kwargs) context['form'] = CommentForm return context def post(self): #do something here with request.POST But in django docs write this logic with mixins(FormMixin).. -
Opentelemetry auto-instrumentation error in python Django application in K8s
I'm running a simple Django 4 CRUD application in kubernetes. I'm trying to collect metrics and traces. I deployed the otel collector and auto-instrumentation and annotated using my django app. oc patch deployment.apps/django-crud -p '{"spec": {"template": {"metadata": {"annotations": {"instrumentation.opentelemetry.io/inject-python": "true"}}}}}' After annotated the below error occurs Create migrations No changes detected Exception while exporting metrics ('Connection aborted.', ConnectionResetError(104, 'Connection reset by peer')) Traceback (most recent call last): File "/otel-auto-instrumentation/urllib3/connectionpool.py", line 790, in urlopen response = self._make_request( File "/otel-auto-instrumentation/urllib3/connectionpool.py", line 536, in _make_request response = conn.getresponse() File "/otel-auto-instrumentation/urllib3/connection.py", line 454, in getresponse httplib_response = super().getresponse() File "/usr/local/lib/python3.10/http/client.py", line 1375, in getresponse response.begin() File "/usr/local/lib/python3.10/http/client.py", line 318, in begin version, status, reason = self._read_status() File "/usr/local/lib/python3.10/http/client.py", line 279, in _read_status line = str(self.fp.readline(_MAXLINE + 1), "iso-8859-1") File "/usr/local/lib/python3.10/socket.py", line 705, in readinto return self._sock.recv_into(b) ConnectionResetError: [Errno 104] Connection reset by peer During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/otel-auto-instrumentation/requests/adapters.py", line 486, in send resp = conn.urlopen( File "/otel-auto-instrumentation/urllib3/connectionpool.py", line 844, in urlopen retries = retries.increment( File "/otel-auto-instrumentation/urllib3/util/retry.py", line 470, in increment raise reraise(type(error), error, _stacktrace) File "/otel-auto-instrumentation/urllib3/util/util.py", line 38, in reraise raise value.with_traceback(tb) File "/otel-auto-instrumentation/urllib3/connectionpool.py", line 790, in urlopen response = self._make_request( File "/otel-auto-instrumentation/urllib3/connectionpool.py", …
