Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Import Error when i try to set AUTHENTICATION_BACKENDS
i created a module in my project directory like this: -Project Directory -Project Name -modules -emailauth.py settings.py -app name and when i add this code to Settings.py: AUTHENTICATION_BACKENDS = ('.modules.emailauth.EmailBackend') i get the error: ValueError at /login/ Empty module name and when i try: AUTHENTICATION_BACKENDS = ('modules.emailauth.EmailBackend') i get the error: ImportError at /login/ m doesn't look like a module path like it's spliting it by characters instead of '.' when i try: AUTHENTICATION_BACKENDS = ['modules.emailauth.EmailBackend'] which i think should be correct, i get an entirely new kind of error: TypeError at /login/ the 'package' argument is required to perform a relative import for '.modules.emailauth' -
`create()` must be implemented
My code: serializers.py: class AuthenticationSerializer(serializers.Serializer): email = serializers.CharField(max_length=255) password = serializers.CharField(max_length=128, write_only=True) def validate(self, data): email = data.get('email') password = data.get('password') user = User.objects.get(email=email, password=password) if user is None: raise serializers.ValidationError( 'A user with this email and password was not found.'+ ' ' + email + ' ' + password ) return { 'email': user.email, 'username': user.username, } views.py: class Authentication(CreateAPIView): serializer_class = AuthenticationSerializer def authentication(request): user = request.data.get('user', {}) serializer = self.serializer_class(data=user) serializer.is_valid(raise_exception=True) return user, Response(serializer.data, status=status.HTTP_200_OK) i need to create authentication and after give user JWTToken but i can't to do authentication. I am work with this libs 2days. May be it is because i am using CreateAPIView? But what can I replace CreateAPIView? -
how to use default address for saving in django
i have model name address which allow user to create multple address and also have functionality to set the default address but i unable to fetch it for saving in models any suggestion will be a big help thank you here is my address model choice are removed class Address(models.Model): user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='address') reciever_name = models.CharField(max_length=200, blank=False) phone_no = models.CharField(validators = [phoneNumberRegex], max_length = 10, blank=False) alt_phone_no = models.CharField(validators = [phoneNumberRegex], max_length = 10, blank=True) state = models.CharField(max_length=50, choices=state_choice, blank=False) pincode = models.CharField(validators = [pincodeRegex], max_length = 6, blank=False) eighteen = models.CharField(blank=False, choices=eighteen_choice, default='Yes', max_length=4 ) city = models.CharField(max_length=100, blank=False) address = models.CharField(max_length=500, blank=False) locality = models.CharField(max_length=300, blank=True) joined_date = models.DateTimeField(default=timezone.now,editable=False) update_at = models.DateTimeField(auto_now=True) default = models.BooleanField(("Default"), default=False) def __str__(self): return self.user.username my views.py for seting a address to deafult @login_required def set_default_address(request, id): Address.objects.filter(user=request.user, default=True).update(default=False) Address.objects.filter(pk=id, user=request.user).update(default=True) return redirect('accounts:home') my model in which i want to save that default address class Order(models.Model): user = models.ForeignKey(User, on_delete=models.CASCADE,) item = models.ForeignKey(Item, on_delete=models.CASCADE ) address = models.ForeignKey(Address, default= True, on_delete=models.CASCADE ) status = models.IntegerField(choices = status_choices, default=1) method = models.CharField(max_length=50, blank=False,) size = models.CharField(max_length=20, blank=False) price = models.FloatField(blank=False) created_at = models.DateField(auto_now=True, editable=False) payment_status = models.IntegerField(choices = payment_status_choices, default=3) order_id = … -
Django preventing multiple user logins
I wanted to limit users to one login per account. I read numerous posts, and I've been following this post in particular: How to prevent multiple login in Django. In myapp/models.py, I have this: from django.conf import settings from django.db import models from django.contrib.sessions.models import Session ... class UserSession(models.Model): user_acc = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE) session_manager = models.OneToOneField(Session, on_delete=models.CASCADE) In myaurth/views.py, I import from myapp/models.py and have this: from django.contrib.auth import user_logged_in from django.dispatch.dispatcher import receiver ... @receiver(user_logged_in) def remove_other_sessions(sender, user, request, **kwargs): # remove other sessions Session.objects.filter(usersession__user_acc=user).delete() # save current session request.session.save() # create a link from the user to the current session (for later removal) UserSession.objects.get_or_create( user_acc=user, session_manager=Session.objects.get(pk=request.session.session_key) ) I am not using a custom user model. When I run this code, it works properly when the user logs in the first time and creates an entry in the usersession table. After that I have problems: If I login a second user, it logs them in, but it replaces the first user's session info with the second user's in the usersession table. I never see more than one entry in the usersession table, which is the last user to successfully login. Worse, if I attempt to login the first user … -
How to set Heroku profile so it accepts "yes" in any terminal question for Heroku Deployment
Hello I am tryting to run a command while deploying my Django code to Heroku. I want to accept any question it might get in terminal I tried to add following to the procfile, but it didnt work release: python manage.py collectstatic --yes release: python manage.py collectstatic -y What is the correct way to do this? Thanks in advance -
Facing troubles on bringing the Django admin user tools like welcome, view site, log out on the custom template
I have to override the blocks like branding,site_title, and index title to a custom template. But the user tools are not displaying. How I get. How I want. -
DateField in Django Forms shows like simple text input
My Form : date = forms.DateField(widget=forms.DateInput(attrs={'class': 'form-control'})) My HTML : <label class="form-label">Date</label> {{ form.date }} <div class="invalid-feedback"> Enter Date </div> Also I don't want to add type "date" in my forms. Issue picture : enter image description here -
How to configure a django url correctly in javascript
I have seen lots of questions and answers on this topic, but the solution seems to evade me. common/urls.py path('use-selected/<str:app_base>/<str:board_number>/', views.UseSelectedItem.as_view(), name='use-selected'), If I enter the the following code in my template, it works correctly <a id="use-selected" href="{% url 'use-selected' app_base='solo' board_number='4' %}"><button type="submit">Use selected</button></a> if, on the other hand, I assign the href in javascript use_selected = document.getElementById('use-selected'); use_selected.href="{% url 'use-selected' app_base='solo' board_number='4' %}" the link fails. The request url is http://127.0.0.1:8000/common/history/solo/%7B%25%20url%20'use-selected'%20app_base%3D'solo'%20board_number%3D'4'%20%25%7D I do not uderstand where the common/history/solo elements arise. common and solo are apps within my project; common/history was the url to get to this page -
Django Paginator. How to set number of pages or elements of list
I need to create a Paginator object for function based view. When I send a request to googleapi I receive json with totalItems and items keys. GoogleApi paginates request to 10 items. Let's say the totalItems is 800 so I need to somehow tell Django Paginator there are more items than I receive in the request. My first idea was to just create a list with empty items and items received from API at indexes accordingly to page number but I believe there is some good clean trick for that" VIEW def get_books(request): page = request.GET.get('page', 1) start_index = (page - 1) * 10 params = {'q': RoweryMogąUratowaćŚwiat, startIndex: start_index} result = requests.get('https://www.googleapis.com/books/v1/volumes?,params=params) total = result['totalItems'] items = result['items'] my_list = [] for i in range(total) if start_index < i < start_index + 10 my_list.append(items[i - start_index]) else: my_list.append('') paginator = Paginator(my_list, 10) -
Creating an Django API end point for data with foreign key value
first time asking question will try and make it clear what I'm trying to do. I have 2 models called Configuration and Results. class Configuration(models.Model): title = models.CharField(max_length=50, default="") houseType = models.CharField(max_length=50) numberOfHouses = models.CharField(max_length=50) maxAmpere = models.CharField(max_length=50) date = models.DateField(default=now()) status = models.BooleanField(default=False) class Results(models.Model): time = models.CharField(max_length=100) averageCurrent = models.CharField(max_length=100) config_id = models.ForeignKey(Configuration, related_name='results', on_delete=models.CASCADE) What I am struggling to do is: Create a Results object linked to the correct configuration Create an api endpoint in the views to fetch the results for a specific configuration Any help or advice would be greatly appreciated! Thanks in advance In case it helps this is the code for my serializers: class ResultsSerializer(serializers.ModelSerializer): class Meta: model = Results fields = ['time', 'averageCurrent', 'config_id'] class ConfigurationSerializer(serializers.ModelSerializer): results = serializers.StringRelatedField(many=True) class Meta: model = Configuration fields = ['results', 'title', 'houseType', 'numberOfHouses','maxAmpere', 'date', 'status'] -
Create a timer in the Django admin model
I want to create a timer in such a way that when the time is set in the admin model, the timer will be activated. Thank you if anyone knows. enter image description here -
DJango admin base_site template extension not working
I am trying to override the basic structure of a Django admin page using the below code: {% extends "admin/base_site.html" %} But the problem is, using this I only get the branding of the site, everything else like the navbar or the logout buttons are all missing. I have also tried adding the below segment but it is not working: {% block nav-global %}{% endblock %} Please suggest some measures. -
Connecting to AWS RDS Postgres Instance from my Django Project (Settings.py)
settings.py import os import dj_database_url ... DATABASES = { 'default': { 'ENGINE': 'django.db.backends.postgresql', 'NAME': os.environ.get('DB_NAME'), 'USER': os.environ.get('DB_USERNAME'), 'PASSWORD': os.environ.get('DB_PASSWORD'), 'HOST': os.environ.get('DB_HOST'), 'PORT': 5432 } DATABASES['default'] = dj_database_url.config(os.environ.get('DATABASE_URL'),conn_max_age=600) I have a environment variable in my machine postgres://<user>:<password>@<host>:5432/cust_manage this is to connect to my aws rds postgresql then when I start the server it returns this error django.db.utils.OperationalError: FATAL: password authentication failed for user "dieth" FATAL: password authentication failed for user "dieth" QUESTION: How to connect my app to my aws rds that uses environment variable? so that I don't have to pass my real host and password to my settings.py. Thanks guys. -
Hide algorithm, iterations, salt in django password field
In django user table password are encrypted automatically with a secure algorithm (pbkdf2_sha256) with salt and iterations. But what I don't understand is why the django password field shows the algorithm, iterations and salt in this format: <algorithm>$<iterations>$<salt>$<hash> I thought those information are secret and I want to show only the hash. -
Login form not initializing not authenticating
When I was adding a template from the internet to my login.html code I encountered a problem. When I try to login it did not work. Even after I added CSRF tokens and login form control code. It has a clickable button that does not thing. I hope someone can help me. If any pictures or other codes needed please feel free to ask. login.html: {% extends 'base.html' %} {% load static %} {% block content %} <!doctype html> <html lang="en"> <head> <!-- Required meta tags --> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <link href="https://fonts.googleapis.com/css?family=Roboto:300,400&display=swap" rel="stylesheet"> <link rel="stylesheet" href="{% static 'fonts/icomoon/style.css' %}"> <link rel="stylesheet" href="{% static 'css/owl.carousel.min.css' %}"> <!-- Bootstrap CSS --> <link rel="stylesheet" href="{% static 'css/bootstrap.min.css' %}"> <!-- Style --> <link rel="stylesheet" href="{% static 'css/style.css' %}"> </head> <body> <div class="content"> <div class="container"> <div class="row"> <div class="col-md-6 order-md-2"> <img src="{% static 'images/undraw_file_sync_ot38.svg' %}" alt="Image" class="img-fluid"> </div> <div class="col-md-6 contents"> <div class="row justify-content-center"> <div class="col-md-8"> <div class="mb-4"> <h3>Sign In to <strong>C</strong></h3> <p class="mb-4">Lorem.</p> </div> <form method="POST"> {% csrf_token %} <div class="form-group"> <input type="text" class="form-control" id="username" placeholder="Username"> </div> <div class="form-group"> <input type="password" class="form-control" id="password" for="password" placeholder="Password"> </div> </form> <input type="submit" value="Log In" class="btn text-white btn-block btn-primary"> </form> </div> </div> </div> </div> … -
Django | Queryset ManyToMany Relation through Instance
I would like to display the different dates for each course. A course can also have several dates. Unfortunately I can't find a solution. Models: class Course(models.Model): course_number = models.CharField(max_length=24, blank=True) course_location = models.ForeignKey(Course_location, on_delete=models.CASCADE) course_dates = models.ManyToManyField('Course_dates', through="Course_Course_dates") def __str__(self): return self.course_number class Course_Course_dates(models.Model): course = models.ForeignKey(Course, on_delete=models.CASCADE) course_dates = models.ForeignKey(Course_dates, on_delete=models.CASCADE) def __str__(self): return self.id class Course_dates(models.Model): date = models.DateField() start = models.TimeField() end = models.TimeField() trainer = models.ManyToManyField('Trainer', through="Course_dates_trainer") def __str__(self): return self.date.strftime("%d.%m.%Y") View: def course_list(request): courses = Course.objects.all() course_list = [] for course in courses: course_location = course.course_location.description dates = course.course_dates.all() course_list.append({'course': course, 'course_location': course_location, 'dates': dates,}) context = { 'course_list': course_list, } return render(request, 'kursverwaltung_tenant/course.html', context) Thanks for help!!! -
Request data empty with formData - Django Rest Framework
I am trying to save strings, floats and an image via a POST request made to a Django Rest Framework backend: # My view: class CreatePost(APIView): # tried with and without parser: # parser_classes = [FormParser, MultiPartParser] def post(self, request): serializer = PostSerializer(data=request.data) if serializer.is_valid(raise_exception=True): serializer.save(user_id=request.user.pk) return Response(serializer.data, status=201) return Response(serializer.errors, status=400) # My serializer: class PostSerializer(serializers.ModelSerializer): class Meta: model = Post fields = ("x", "y") And my JS frontend: const postBody = new FormData(); postBody.append('x', 'someValue'); postBody.append('y', 'someValue'); fetch('/api/v1/post', { method: 'post', body: postBody, credentials: 'same-origin', headers: { 'X-CSRFToken': getCookie('csrftoken'), 'Content-Type': 'multipart/form-data' } } However, sending as 'Content-Type': 'multipart/form-data' does not show any values in request.data in my backend. Sending as application/json works, but does not when one of the fields is an image. How can I process both text and image using form-data? I tried using parsers (FormParser and MultiPartParser) without success. -
Django, all views require login except `@login_not_required` decoratored views
Django is centered towards allow access to all the majority of the time, and restricting acces on the exception. I am making a site whereby I would like access restricted the most of the time, and the rare case is open to all. Ensuring that one has added a @login_required decorate to all views is error prone. I acheived this by creating a custom middleware like this. To keep track of open URLs, I defined a list, and then whenever I wished to open up a URL, I added it to the list, and the middleware checked the request path against this list, and allowed exceptions accordingly. This method above works, but I often mess it up with changing urls, and other issues to do with code reuse on different sites. Ideally I would like to create my own @login_not_requied decorator. How to get the class based view or function the request is going to call within the middleware, so I can check whether the view does not require login? -
Using Django's GenericForeignKey with Async Graphene Subscription
I've implemented graphql_ws to subscribe to updates from a Notification model that uses multiple GenericForeignKeys. My setup works well, except when I try to query information from those foreign objects. I then get the following error: graphql.error.located_error.GraphQLLocatedError: You cannot call this from an async context - use a thread or sync_to_async. From what I seem to understand, that's because some database query operations are being done outside the async context of get_notifications (that is, in the resolve_actor function). But I'm really not clear on how I can pull the operations of resolve_actor into the async context. I've unsuccessfully tried using prefetch_related (plus I'm not sure it'll work with multiple content types per Django's docs). Here's the code models.py class Notification(TimeStampedModel): # ... actor_content_type = models.ForeignKey(ContentType, related_name='notify_actor', on_delete=models.CASCADE) actor_object_id = models.CharField(max_length=255) actor = GenericForeignKey('actor_content_type', 'actor_object_id') # ... schema.py class ActorTypeUnion(graphene.Union): """ All possible types for Actors (The object that performed the activity.) """ class Meta: types = (UserType,) # here's there's only one type, but other fields have multiple class NotificationType(DjangoObjectType): actor = graphene.Field(ActorTypeUnion) def resolve_actor(self, args): if self.actor is not None: model_name = self.actor._meta.model_name app_label = self.actor._meta.app_label model = ContentType.objects.get(app_label=app_label, model=model_name) return model.get_object_for_this_type(pk=self.actor_object_id) return None # ... class Meta: model … -
"Incorrect type. Expected pk value, received User."
I have this two models: order and route. Route has a oneToMany relation with Order as you can see: class Order(models.Model): customer = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name='customer') retailer = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name='retailer') date_publish = models.DateField(default=datetime.date.today) date_available = models.DateField() weight = models.DecimalField(decimal_places=2, max_digits=5) description = models.CharField(max_length=500, null=True) route = models.ForeignKey(Route, related_name='orders', null=True, on_delete=models.CASCADE) class Route(models.Model): day = models.DateField() warehouse = models.ForeignKey(Warehouse, on_delete=models.CASCADE) start_time = models.TimeField() When a route is created I want to associate orders with that route, so I've done the following serializer: class routeSerializer(serializers.ModelSerializer): orders = OrderSerializer(many=True) class Meta: model = Route fields = ['day', 'warehouse', 'start_time', 'orders'] def create(self, validated_data): orders_data = validated_data.pop('orders') route = Route.objects.create(**validated_data) for order_data in orders_data: order_serializer = OrderSerializer(data=order_data) order_serializer.is_valid(raise_exception=True) orders = order_serializer.save() orders.route = route orders.save() return route I am sending a request like this: { "day" : "2021-12-12", "warehouse": "1", "start_time": "7:00", "orders": [ { "id": 15, "customer": 1, "retailer": 2, "date_available": "2020-12-12", "weight": "1.20", "description": null, "ordertimelocation": [ { "longitude": "12.1223000000000000", "latitude": "12.1223000000000000", "time_interval": [ { "start": "2021-07-21T10:10:00Z", "end": "2021-07-21T10:10:00Z" } ] } ] } ] } But the server returns a bad request: { "customer": [ "Incorrect type. Expected pk value, received User." ], "retailer": [ "Incorrect type. Expected pk value, … -
Django Ajax Post - works sometimes
I have a Django application where I am using AJAX to do a post when submitting a form. My issue is what do I set the URL to in my JavaScript? JavaScript snippet: $.ajax({ url: "search/do_post/", // the endpoint type: "POST", // http method data : { relevancy: relevancy, report_id: report_id, query: query_text, //csrfmiddlewaretoken:$('input[name=csrfmiddlewaretoken]').val() }, urls.py snippet: path("search/do_post/", do_post_view, name="do_post"), My issue is that sometimes the above works and sometimes it does not. When it doesn't I get: POST http://localhost:1227/search/search/do_post/ 404 (Not Found) When I see that I then remove the search part from the url in my JavaScript. Sometimes that works and sometimes not. Any suggestions? -
How to upload a saved file in django
in my case, the user gives a word in the front-end and in the back-end, i will call some function that i wrote and at the end i will build a .PDF file in the /media/reports directory. how i can make this files user-specefic and save them in the database? before that, i implemented my code without models and forms and just save file in the /media/reports/ directory. and user just could download that file at the moment after redirected to the download page. but now, i want to save these files to the database that each user will be access new files in his profile. how i can do that ? here is my code: views.py: @login_required(login_url='/login/') def dothat(request): if request.method == 'GET': return render(request, 'app/dothat.html') else: try: global word, user_name, function_name function_name = dothat.__name__ word = request.POST.get("word") user_name = request.user full_name = request.user.get_full_name() myscript.script_one(word, user_name,full_name, function_name) # And in the called myscript, after doing some things, # the PDF file will be saved in /media/reports/ directory except ValueError: return render(request, 'app/dashboard.html', {'error':'Bad data passed in. Try again.'}) # And then, the user will be redirect to the download page to download that single file return render(request, 'app/download.html') and … -
django_elasticsearch_dsl -RequestError(400, 'search_phase_execution_exception', 'failed to create query: For input string: )
I am trying to search with Elasticsearch using django_elasticsearch_dsl and 'django_elasticsearch_dsl_drf',, but I get RequestError(400, 'search_phase_execution_exception', 'failed to create query: For input string: "MM"'). I am able to search if my input is an integer or a float , but I am not able to search for string. Here is my document.py file:- from django_elasticsearch_dsl import ( Document , fields, Index, ) #from .models import ElasticDemo from .models import Course #PUBLISHER_INDEX = Index('elastic_demo') PUBLISHER_INDEX = Index('courses') #Name of the database that we are making PUBLISHER_INDEX.settings( number_of_shards=1, number_of_replicas=1 ) @PUBLISHER_INDEX.doc_type class CourseDocument(Document): id = fields.IntegerField(attr='id') #fielddata=True course_index = fields.IntegerField( fields={ 'raw': fields.IntegerField(analyzer='keyword'), } ) Code = fields.TextField( fields={ 'raw': fields.TextField(analyzer='keyword'), } ) Title = fields.TextField( fields={ 'raw': fields.TextField(analyzer='keyword'), } ) TotalCredits = fields.FloatField( fields={ 'raw': fields.TextField(analyzer='keyword'), } ) Description = fields.TextField( fields={ 'raw': fields.TextField(analyzer='keyword'), } ) department = fields.TextField( fields={ 'raw': fields.TextField(analyzer='keyword'), } ) class Django(object): model = Course Here is my views.py class CourseDocumentView(DocumentViewSet): document = CourseDocument serializer_class = CourseSerializer lookup_field = 'id' filter_backends = [ FilteringFilterBackend, OrderingFilterBackend, CompoundSearchFilterBackend, #DefaultOrderingFilterBackend, SearchFilterBackend, ] search_fields = ( 'Code', 'Title', 'TotalCredits', 'Description', 'department', ) multi_match_search_fields = ( 'Code', 'Title', 'TotalCredits', 'Description', 'department', ) filter_fields = { 'Code' : 'Code', 'Title' : 'Title', 'TotalCredits' … -
How to sync django calendar project with mobile app calendar?
I have created a calendar with drf and react js which has all calendar features including events. Now, I'm trying to see my calendars and events on mobile calendar apps like Samsung or iphone calendar. I use google to authenticate users. Is there any ways to do it? What if I use my own email service (something other than google account)? Thanks for your help. -
Intergrating shopify payment with django app
Is it possible to integrate Shopify payment with Django!? Currently I developed an eCommerce site with django using Stripe payment-gateways,but in latest requirements I'm supposed to integrate Shopify Payments with the project. So now here comes two questions Is it possible to integrate shopify payment with django ? If possible, what's the starting point?
