Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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NoReverseMatch Django Exception
so I encountered a NoReverseMatch exception in my Django app. It shows me this type of exception: Reverse for 'user-profile' with arguments '('',)' not found. 1 pattern(s) tried: ['profile/(?P[^/]+)/$'] feed_component.html code: <div> {% for room in rooms %} <div> {% if request.user == room.host %} <a href="{% url 'update-room' room.id %}">Edit</a> <a href="{% url 'delete-room' room.id %}">Delete</a> {% endif %} <a href="{% url 'user-profile' room.host.id %}">@{{room.host.id}}</a> <h5>{{room.id}} --> <a href="{% url 'room' room.id %}">{{room.name}}</a></h5> <small>{{room.topic.name}}</small> <hr> </div> {% endfor %} So my biggest surprise is that in: <a href="{% url 'user-profile' room.host.id %}">@{{room.host.id}}</a> @{{room.host.id}} render excatly what i want on page - id. But this part: {% url 'user-profile' room.host.id %}" Throws exception... and when i change it to: <a href="{% url 'user-profile' room.host %}">@{{room.host.id}}</a> There is no exceptions, it works ok but i really need that id... urls.py path('profile/<str:pk>/', views.userProfile, name="user-profile"), views.py def userProfile(request, pk): user = User.objects.get(id=pk) rooms = user.room_set.all() room_messages = user.message_set.all() topics = Topic.objects.all() context = {'user': user, 'rooms': rooms, 'room_messages': room_messages, 'topics': topics} return render(request, 'baseapplication/profile.html', context) models.py class Room(models.Model): host = models.ForeignKey(User, on_delete=models.SET_NULL, null=True) topic = models.ForeignKey(Topic, on_delete=models.SET_NULL, null=True) name = models.CharField(max_length=200) description = models.TextField(null=True, blank=True) participants = models.ManyToManyField(User, related_name='participants', blank=True) updated = models.DateTimeField(auto_now=True) … -
Why it can't find the url
I've been trying to set up channels for our app, but I think that I am getting over my head. I tried following a youtuber's tutorial along with the official one. Everything seemed to go fine until I made the first ws request which led to the following error backend: Not Found: /ws/live frontend: VM160:4 WebSocket connection to 'ws://localhost:83/ws/live/' failed: Due to other dependencies, I have to use Django 2.2 therefore I think that I have messed up somewhere but do not where. here is the code asgi.py: import os import django from channels.http import AsgiHandler from channels.routing import ProtocolTypeRouter from channels.auth import AuthMiddlewareStack from channels.routing import ProtocolTypeRouter, URLRouter import homepage.routing os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myapp.settings') django.setup() application = ProtocolTypeRouter({ "http": AsgiHandler(), "websocket": AuthMiddlewareStack( URLRouter( homepage.routing.websocket_urlpatterns ) ), }) routing.py from django.urls import path from .consumers import WSConsumer websocket_urlpatterns = [ path('ws/live/', WSConsumer.as_asgi()) ] consumers.py import json from random import randint from time import sleep from channels.generic.websocket import WebsocketConsumer class WSConsumer(WebsocketConsumer): def connect(self): self.accept print('accepted') def disconnect(self, close_code): print('closed') docker-compose.yml version: "3" networks: data-net: driver: bridge http: driver: bridge backend: driver: bridge services: db-0: image: "bitnami/postgresql-repmgr:11" env_file: - ".env" restart: unless-stopped shm_size: "20gb" networks: - data-net volumes: - "postgresql_data:/bitnami/postgresql" web: build: . command: … -
External CSS Stylesheet and Images not showing up in Django Web Application when DEBUG=False
I have a basic Django Web Application that uses an external CSS style sheet in the static/css folder, font-awesome-fonts in the static/fonts folder, and user-uploaded images in the media/images folder. Whenever I set DEBUG = False the image and CSS Style sheets are ignored and just the HTML Template is displayed. My directory structure is as follows: app/ ├── myapp/ ├── media/ ├── static/ └── templates/ settings.py BASE_DIR = Path(__file__).resolve().parent.parent DEBUG = True TEMPLATES = [ { 'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': [os.path.join(BASE_DIR, "templates/")], 'APP_DIRS': True, 'OPTIONS': { 'context_processors': [ 'django.template.context_processors.debug', 'django.template.context_processors.request', 'django.contrib.auth.context_processors.auth', 'django.contrib.messages.context_processors.messages', ], }, }, ] STATIC_URL = '/static/' STATICFILES_DIRS = ( os.path.join(BASE_DIR, "static/"), ) MEDIA_URL = '/media/' MEDIA_ROOT = os.path.join(BASE_DIR, 'media/') I found out how to display media in the main projects URLs.py by adding the if else statements but even when I add the + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT) to the end of the urlpatterns[] it does not display when DEBUG = False urls.py from django.contrib import admin from django.urls import include, path from django.conf import settings from django.conf.urls.static import static from django.contrib.staticfiles.urls import staticfiles_urlpatterns urlpatterns = [ path('', include('myapp.urls')), path('admin/', admin.site.urls), ] # Serving the media files in development mode if settings.DEBUG: urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT) else: urlpatterns += … -
Django Multiple User Timezone
I'm new to django and is working on an application that can store user notes and reminder time. I have followed the Django document(https://docs.djangoproject.com/en/3.2/topics/i18n/timezones/) and added TimezoneMiddleware to middleware, set_timezone method, and timezone template. But still not able to get the correct user timezone, it always shows as UTC. I'm not sure if there anything need to be add in frontend part? because as in code: class TimezoneMiddleware: def __init__(self, get_response): self.get_response = get_response def __call__(self, request): tzname = request.session.get('django_timezone') if tzname: timezone.activate(pytz.timezone(tzname)) else: timezone.deactivate() return self.get_response(request) it seems should get timezone information from session data, but I have checked and there no timezone information there. Would anyone suggest what I might missed? Thank you. -
Django how can I get this translated markdown to render correctly on a website?
I've taken text from my models and used markdown python extension to turn it into html... but it renders as html as a string on my site like this: bot: <p><code>62%</code> Not quite. You got this! Appreciate your efforts</p> kaik: <p>ss</p> Rather than showing the html as a string, I'd like it to format it as html. My views.py currently: from django.shortcuts import render from .models import ChatStream from django.http import HttpResponseRedirect import random import markdown from django.template import RequestContext def send(request): message = request.POST.get('userMessage', False) ip = visitor_ip_address(request) response = routes(message, 'website_' + str(ip)) chatItem = ChatStream(ss= markdown.markdown(response), user= markdown.markdown(message), name=ip) chatItem.save() return HttpResponseRedirect('/chattr/') I'm using markdown to convert the text in my models ChatStream into nicely website formattable text, but rather than formatting as html it just prints the html as a string onto the site. my chattr.html: {% for chat_stream in chat %} <p> {% if forloop.last %} {% else %} <b>bot:</b> <br> {{chat_stream.ss}} <br> <b>{{user}}:</b> <br> {{chat_stream.user}} <br> {% endif %} </p> {% endfor %} It should look like this in the website: bot: 62% Not quite. You got this! Appreciate your efforts kaik: ss -
Load Apache-arrow.js to Django project
Learning web development and using Django. My app will consume lot of data and was thinking to integrate Apache-arrow.js I was inspired by the below blog on the apache arrow js website ( https://arrow.apache.org/docs/js/ ) : https://observablehq.com/@theneuralbit/introduction-to-apache-arrow for Django , I have setup the static folder in which I downloaded the es5-umd version. in my html I have the below : Adding type=="module" - doesn't help and console log do not print "test2" or "test1" I copied the example from apache arrow js website just to test. I get the error - " :arrow.js:20 Uncaught TypeError: Cannot read property 'Arrow' of undefined" {% load static %} <html lang="en"> <head> <script src="{% static 'js/apache-arrow/es5-umd/arrow.js' %}" > console.log('test1') </script> <script type="module" src="{% static 'js/apache-arrow/es5-umd/arrow.js' %}"> const LENGTH = 2000; const rainAmounts = Float32Array.from( { length: LENGTH }, () => Number((Math.random() * 20).toFixed(1))); const rainDates = Array.from( { length: LENGTH }, (_, i) => new Date(Date.now() - 1000 * 60 * 60 * 24 * i)); const rainfall = Table.new( [FloatVector.from(rainAmounts), DateVector.from(rainDates)], ['precipitation', 'date'] ); console.log('test2') </script> <script > console.log('test3') </script> Not sure what is issue , next I am thinking of trying browserify. -
Django 3.2.6: Path order in app urls.py related to 404
I have multiple paths in my urls.py file for app communities. Here are the two that are causing issues. path('posts/<str:username>/<slug:slug>',communities_views.viewPostDetail,name="post_detail") path('posts/delete_comment/<int:comment_id>',communities_views.viewDeleteComment,name="delete_comment") For some reason, Django seems to get confused about the order of these two paths. When in the order as shown, Django recognizes that delete_comment is a path (meaning that in templates using something like communities:delete_comment does not throw an error when generating the template), but when attempting to navigate to the url, Django keeps catching the post_detail view and freaks out. However, when I reverse the order of these two urls, everything works fine. Does order matter? If so, that is rather inconvenient for larger projects. If any other information is needed, please let me know. -
How to change the height of the parent div of a plotly_app iframe in python/django?
I am trying to change the height of the parent div of an iframe but cannot find out how to. Here is an image of how the html structure is when I use my Google browser's inspect tool (I did not write this html, it is created by plotly): The highlighted div contains the height that I am trying to change. Currently, the height is set to 0. (padding-bottom is set to 10% since the ratio in the html is set to 0.1 since I have been testing everything I can think of but I have the ratio set to .35 The following shows how I call the plotly_app in the html: Here is how the views.py has the scatter_app layout: I have attempted to add 'height': '90%' the styles of the 'html.Div' and the 'dcc.Graph' but these change the height of the html inside of the iFrame. Therefore, nothing changes since I need to change the height of the parent div. Thank you in advance for all the help. -
Properties that relate to each other as a one to many field problem
Sorry that the title might be confusing but I'm not native english speaker and very new to django terms. I have a scenario like this: A department can have many branches. I have a student model where he has two properties, Department and Branch. When I select his department , I want it to accept (and show in admin panel) only the branches that are related to that department , my code so far is this: class Entity(models.Model): id = models.UUIDField(primary_key=True , default = uuid.uuid4, editable=False) class Department(Entity): name = models.CharField(max_length=100, null=False) class Branch(Entity): name = models.CharField(max_length=100, null=False) dep = models.ForeignKey(Department, related_name='branches', on_delete=models.CASCADE) class Student(Entity): #Some Fields here department = models.ForeignKey(Department, related_name='students', on_delete=models.CASCADE) branch = models.ForeignKey(Branch, related_name='students', on_delete=models.CASCADE) Assuming I have a 2 departments (CE and CS), CE has 2 branches and CS has 3 branches , What I want is, when I choose a student's department, I want the branches to be shown only the one that exists on that department , what I'm getting is 5 branches (in this example). How can I solve this ? NOTE: I haven't played with anything related to the admin panel except registering the models. Thanks in advance and sorry if the … -
How to script interactions with Django POST endpoints?
What is the preferred way of pre-populating database (Model) objects in a Django app? I am inclined to try to script POSTing data to the relevant endpoints, but am being stymied by the CSRF protection. This is not part of the testing framework, this is for setting up demonstration and training instances in a beta testing or production environment. As a notional example, I'd like to populate the the "Player" database with three entries: Alice(sender), Bob(reciever) and Charlie(eavesdropper), and I'd like to script/automate the process of creating these entries after deploying and starting the application. I already have a form based mechanism for creating new Players. By visiting /create via a browser, there is a form that allows a person to type in the name, e.g. "Bob" and a role, e.g. "reciever", and submit the form to create the new Player instance. Thus it makes sense to me to try to try to use the existing web API for this: e.g. make calls like requests.post('0.0.0.0:8000/create', data={'name':'Bob', 'role':'reciever'}) in the script that pre-populates the database. However doing this results in 403 errors due to the CSRF tokens, which I don't want to disable. This problem also occurs if I just try … -
Flutter websockets and connecting to Django channels
having trouble upgrading to a websocket connection: running my server on django (channels) on python manage.py runserver (my ip.. ):8000 and I keep getting this: WebSocket HANDSHAKING /ws/joingroup/0f248bf2-2e98-48a2-a8aa-96dece0bcff0/ WebSocket REJECT /ws/joingroup/0f248bf2-2e98-48a2-a8aa-96dece0bcff0/ WebSocket DISCONNECT /ws/joingroup/0f248bf2-2e98-48a2-a8aa-96dece0bcff0/ in flutter I am using a controller in getx. WebSocketChannel? channel; //initialize a websocket channel bool isWebsocketRunning = false; void startStream() async { if (isWebsocketRunning) return; //check if socket running var url = 'ws://${ip}:8000/ws/joingroup/${Get.parameters['groupid']}/'; this.channel = WebSocketChannel.connect( Uri.parse(url), //connect to a websocket ); channel!.stream.listen( (event) { print(json.decode(event)); }, onDone: () { isWebsocketRunning = false; }, onError: (error) { debugPrint('ws error $error'); } ); my consumers.py file in djagno: class Chatconsumer(AsyncWebsocketConsumer): async def connect(self): print('hi') self.group_id = self.scope['url_route']['kwargs']['groupid'] # gets the room_name from the Urlroute. self.room_group_name = f'group {self.groupd_id}' #this sets the room_group_name (basically creates a group) await self.channel_layer.group_add( self.room_group_name, self.channel_name ) await self.accept() async def disconnect(self, close_code): # Leave room group await self.channel_layer.group_discard( self.room_group_name, self.channel_name ) #consumer receives message from websocket async def receive(self, text_data): text_data_json = json.loads(text_data) message = text_data_json['message'] await self.channel_layer.group_send( self.room_group_name, { 'type': 'chat_message', 'message': message } ) async def chat_message(self, event): message = event['message'] await self.send(text_data=json.dumps({ 'message': message })) Is this a problem with flutter and it being run on a virutal … -
OSError [Errno 22] 'Invalid argument' when use... print() in Django views for local server 127.0.0.1. PyCharm
Suddenly, the mistake appear in Django project, for start in local 127.0.0.1 in views.py that did`t modified for long time, and normally works now on production server. Run from PyCharm OSError at /Nb/ [Errno 22] Invalid argument Request Method: GET Request URL: http://127.0.0.1:8000/Nb/ Django Version: 3.1.2 Exception Type: OSError Exception Value: [Errno 22] Invalid argument Exception Location: C:\Users\shulya403\Shulya403_works\all_gid_2\all_gid_2\marketability\views.py, line 299, in Dict_by_Classes2 Python Executable: C:\Users\shulya403\Shulya403_works\all_gid_2\venv\Scripts\python.exe Python Version: 3.7.4 Python Path: ['C:\\Users\\shulya403\\Shulya403_works\\all_gid_2\\all_gid_2', 'C:\\Users\\shulya403\\Shulya403_works\\all_gid_2', 'C:\\Program Files\\JetBrains\\PyCharm ' '2019.3.4\\plugins\\python\\helpers\\pycharm_display', 'C:\\Users\\shulya403\\AppData\\Local\\Continuum\\anaconda3\\python37.zip', 'C:\\Users\\shulya403\\AppData\\Local\\Continuum\\anaconda3\\DLLs', 'C:\\Users\\shulya403\\AppData\\Local\\Continuum\\anaconda3\\lib', 'C:\\Users\\shulya403\\AppData\\Local\\Continuum\\anaconda3', 'C:\\Users\\shulya403\\Shulya403_works\\all_gid_2\\venv', 'C:\\Users\\shulya403\\Shulya403_works\\all_gid_2\\venv\\lib\\site-packages', 'C:\\Program Files\\JetBrains\\PyCharm ' '2019.3.4\\plugins\\python\\helpers\\pycharm_matplotlib_backend'] Server time: Wed, 24 Nov 2021 19:08:57 +0000 line 299 - is the print(var) function. (There's another one point of this mistake appears in enother code line, and there's print() too) Server and code normally worked for long time in this installation. I did't change any configuration files or environoment parameters... What it`s may be? -
Optimize request in the FOR loop
How can I optimize the following request to eliminate loop? Codes count is several hundred, so I get several hundreds database queries, which is unacceptable. n = 3 result = [] codes = Target.objects.filter(code__in=['ABC', 'CDE', ...]) for code in codes: result.append(Data.objects.select_related('target') .filter(target__code=code) .values('spec', 'spec_type') .order_by('-spec')[:n]) Models: class Data(models.Model): target = models.ForeignKey(Target) spec_type = models.CharField() spec = models.FloatField() class Target(models.Model): code = models.TextField(db_index=True) -
Pylance auto import one level too deep (Django)
As described in the title, the pylance auto-import imports one level too deep for Django. It throws an Error "no module named [module_name]". How can I fix it? My project structure (to the app I want to import from): Warenwirtschaft/BackEnd/BackEnd/warenwirtschaft The pylance import: from BackEnd.BackEnd.warenwirtschaft.models import Ingredient The correct import: from BackEnd.warenwirtschaft.models import Ingredient I just don't want to manually type all imports... -
correct using get_or_create?
To my code, which records a contact from the form and adds it to the db, need to add get_or_create, or write another condition (if there is a contact with such a phone — update, no - add), but i'm do it for the first time, please, I'll be glad to read solution to my problem and a brief explanation ♡ views.py from django.http import HttpResponse from django.shortcuts import render,redirect from django.contrib import messages from .forms import Forms def main(request): form = Forms if request.method == "POST": form = Forms(request.POST) if form.is_valid(): form.save() messages.success(request, 'Form has been submitted') return redirect('/') return render(request, 'app/main.html', { 'form':form } ) forms.py from django.forms import ModelForm from .models import Form class Forms(ModelForm): class Meta: model = Form fields = '__all__' urls.py from django.contrib import admin from django.urls import path, include from django.conf import settings from django.conf.urls.static import static urlpatterns = [ path('admin/', admin.site.urls), path('', include('app.urls')) ] + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT) models.py from django.db import models class Form(models.Model): name = models.CharField(max_length=30) phone = models.CharField(max_length=30) admin.py from django.contrib import admin from .models import Form '''from django.contrib.admin.models import LogEntry LogEntry.objects.all().delete()''' '''for delete actions in admin_panel''' admin.site.register(Form) apps.py from django.apps import AppConfig class AppConfig(AppConfig): default_auto_field = 'django.db.models.BigAutoField' name = … -
Django avoiding page reload on form submission using HttpResponseRedirect
I wanted to create a chunk of my website so that it does not make the whole page reload once someone subits a form. I tried this previous question: Django How do i Insert data without refreshing or reloading page I used an HttpResponseRedirect as the post suggested In views.py: def displayDict(request): m = '' ip = visitor_ip_address(request) try: m = ChatStream.objects.filter() last = m.latest() last_ss = last.ss last_user = last.user html_smallest_steps = markdown.markdown(last_ss) # html_user = markdown.markdown(last_user) except: html_ss = '' html_user = '' return render(HttpResponseRedirect, 'chatStream.html', {"chat": m, "html_ss": mark_safe(html_ss), "last_user": mark_safe(last_user)}) my html: {% for chat_stream in chat %} <p> {% comment %} {% if != forloop.last %} # Do something here {% endif %} {% endcomment %} {% if forloop.last %} {% else %} <b>ss:</b> <br> {{chat_stream.ss}} <br> <b>{{user}}:</b> <br> {{chat_stream.user}} <br> {% endif %} </p> {% endfor %} <form action="/send/" method = "post">{% csrf_token %} <input type="text" name="userMessage"> <input type="submit" value="Send to ss bot"> </form> AttributeError: type object 'HttpResponseRedirect' has no attribute 'META'``` And in more detail here is the complete error: Internal Server Error: /chattr/ Traceback (most recent call last): File "C:\Users\Kaij\Documents\djangoTests\django_tailwind_project\env\lib\site-packages\django\core\handlers\exception.py", line 47, in inner response = get_response(request) File "C:\Users\Kaij\Documents\djangoTests\django_tailwind_project\env\lib\site-packages\django\core\handlers\base.py", line 181, in … -
Get decimal data from Postgrades database using Django
I use Python and the Django framework to get some decimal data from the PostGress database. My question is that the variable "new_poi_lat" is displayed correctly, but why is the variable "poi_lat" displayed as shown below ?! I want the "poi_lat" variable to be displayed normally. And then I want to use "zip (poi_lat, poi_log)" but it gives an error! My code: poi_lat = [] poi_log = [] for id in IDs: poi_name = end_poi.values_list('lat','log').filter(id=id) new_poi_lat = poi_name[0][0] new_poi_log = poi_name[0][1] print("new_poi_lat:" , new_poi_lat) poi_lat.append(new_poi_lat) poi_log.append(new_poi_log) print("poi_lat:" , poi_lat) coordinates = (zip(poi_lat, poi_log)) output: new_poi_lat: 34.791553 new_poi_lat: 34.804567 poi_lat: [Decimal('34.791553'), Decimal('34.804567')] -
Wrong field value in Django FileField
There are models: class DataFile(models.Model): title = models.CharField( max_length=100, help_text='Краткое наименование данных', verbose_name = 'Наименование' ) file = models.FileField(upload_to ='data/', verbose_name = 'Файл данных', unique=True) .... class Map(models.Model): .......... data_file = models.ForeignKey( DataFile,on_delete=models.CASCADE, verbose_name = 'Файл данных', to_field='file' ) .......... I have an object of class Map. However, when referring to him obj.get().data_file.file.path or obj.get().data_file.file its behavior is different for django-shell and actual work. For Django-shell, a manual request gives the full path, which is what I need (stored in the 'file' field of the DataFile class). But in real work it outputs the value of the 'title' field of the DataFile class). I need the output to be exactly the full path to the file, i.e. what is stored in the file field. -
ModelForm doesn´t validate
I just cant make my modelform to validate. I call it from view, and GET prints it right, but when POST occurs it doesn´t validate. Allways getting ValueError Exception Value: The view gestionPartesMedicos.views.partes_medicos_add didn't return an HttpResponse object. It returned None instead. form´s name attributes correspond to model´s and form´s. This my model: class MedicalList(models.Model): worker= models.ForeignKey(worker, on_delete=models.CASCADE) description=models.CharField(max_length=255) upload=models.FileField(upload_to='media/') created_at=models.DateTimeField(auto_now_add=True) this my form class: class MedicalListForm(forms.ModelForm): class Meta: model = MedicalList fields = ( 'worker', 'description', 'upload', ) description=forms.CharField(widget=forms.Textarea(attrs={'class': 'form-control'})) upload=forms.FileField(widget=forms.ClearableFileInput(attrs={'class': 'form-control'})) def __init__(self, *args, **kwargs): user_id = kwargs.pop('user_id') super().__init__(*args, **kwargs) worker = forms.ModelChoiceField(queryset=None,empty_label=None,widget=forms.Select(attrs={'class': 'form-control'})) worker_id = Trabajador.objects.filter(user_id=user_id) self.fields['worker'].queryset = worker_id self.fields['worker'].empty_label = None And this my view in trouble: def medical_list_add(request): if request.method == "POST": form = MedicalListForm(request.POST,request.FILES,user_id=request.user) if form.is_valid(): form.save() return redirect('medical_list') else: form = MedicalListForm(user_id=request.user) return render(request, 'medical_list_add.html', {'form': form}) Might it be around Model field created_at? just trying to guess, totally lost. thanks in advance -
Django Custom Middleware gets AnonymousUser even for logged in users
I'm using a custom middleware that looks like this: class DisallowLoggedInUsers: def __init__(self, get_response): self.get_response = get_response def __call__(self, request): # Code to be executed for each request before # the view (and later middleware) are called. print("in interceptor before response") print("user: ", request.user) print("is_authenticated?: ", request.user.is_authenticated) response = self.get_response(request) # Code to be executed for each request/response after # the view is called. print("in interceptor after response") print("user: ", request.user) print("is_authenticated?: ", request.user.is_authenticated) return response I also have similar logs inside the get method of the view. Here's the log output: in interceptor before response user: AnonymousUser is_authenticated? False in view user: John Doe/john@test.domain is_authenticated? True in interceptor after response user: John Doe/john@test.domain is_authenticated? True Here is my order of middlewares: MIDDLEWARE = [ 'corsheaders.middleware.CorsMiddleware', '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', 'userdata.customInterceptor.DisallowLoggedInUsers', ] Even though I've put my custom middleware way down the order (below AuthenticationMiddleware, the request.user object is not set untill the view is processed. I even tried trapping the request at process_view of the middleware but got an AnonymousUser there still. What am I doing wrong? I'm on Django 3.1.7 and djangorestframework 3.12.3. Note: I checked this related question, but it did not help. -
Can't access Django template variable
I have problem and can't see the error here, I want to pass some variables into newly generated template and then access it with javascript. But template is rendering empty value. But I can see in console that variables are not empty. The views.py arguments={'ram_count':ram_count, 'max_ram':max_ram} print(arguments['ram_count']) print(arguments['max_ram']) return render(request,'generated_elements.html',arguments) The template <option value={{ ram_count }}>{{ ram_count }}</option> <option value={{ max_ram }}>{{ max_ram }}</option> this is view from page Any help will be appreciated -
Custom Django form validation to display front end error
Right now I am setting up a range filter in my Django Project that looks like this. What I need to do, is the present the above behavior from happening, not just in the views logic, which is simple, but I need to display a message to use on the front end something along the lines of "Low bound number cannot be higher than High bound", which would appear like this. Heres my forms.py class MultiFilterForm(forms.Form): review_high = forms.IntegerField(validators = [MinValueValidator(0)], min_value=0, label = 'Reviews', required = False, widget = forms.NumberInput( attrs={'id': 'reviewInputHigh', 'name': 'reviewHigh', 'href': '#', 'value': '', 'class': "form-control"})) review_choice_high =(('lte', 'Reviews <='),) reviewsign_high = forms.ChoiceField(choices = review_choice_high, label = 'Reviews <=', required = False, widget = forms.TextInput(attrs={'id': 'reviewSignHigh','class': 'form-control',})) review_low = forms.IntegerField(validators = [MinValueValidator(0)], min_value=0, required = False, widget = forms.NumberInput( attrs={'id': 'reviewInputLow', 'name': 'reviewLow', 'href': '#', 'value': '', 'class': "form-control"})) review_choice_low = (('gte', 'Reviews >='),) reviewsign_low = forms.ChoiceField(choices = review_choice_low, label = 'Reviews >=', required = False, widget = forms.Select(attrs={'id': 'reviewSignLow','class': 'form-control',})) I was thinking of implementing a function into the Form class like so def validate_bounds(review_high, review_low): if review_low.value > review_high.value: raise ValidationError('Low bound number cannot be higher than High bound') And somehow pass the … -
How do I add an event to a formset field?
How do I add an event to a formset? I tried this but it doesn't work, calculos.js var formset_event = document.querySelector("table.table-formset input:nth-child(4)"); formset_event.setAttribute("onchange","multiplicar_formset()"); where I want to add the event onchange is right here: {% render_field formset.empty_form.unit_price class="form-control" %} I leave the html code here presupuestos-forms.html <div class="form-row" id="empty-row"> <table class="table table-bordered table-nowrap align-middle table-formset"> <td> {% render_field formset.empty_form.codigo class="form-control" %} </td> <td> {% render_field formset.empty_form.descripcion class="form-control" %} </td> <td> {% render_field formset.empty_form.quantity class="form-control" %} </td> <td> {% render_field formset.empty_form.unit_price class="form-control" %} </td> <td> {% render_field formset.empty_form.total_price class="form-control" %} </td> <td> {% render_field formset.empty_form.tax_free class="form-check-input" %} </td> </table> </div> -
Django Import Custom Module to Views.py
We have this folder structure: django_app >> views.py django_app >> bot_funcs >> bot.py Both django_app and bot_funcs have blank __init__.py files. We are attempting to import bot.py into views.py. We have tried every combination we can think of, and assumed something like this would work: from .bot_funcs import bot This results in a 500 server error on our website and this traceback in Spyder: Traceback (most recent call last): File "<ipython-input-18-937d4612431c>", line 1, in <module> from .bot_funcs import bot ModuleNotFoundError: No module named '__main__.bot_funcs'; '__main__' is not a package I think this traceback is a red herring, because other imports in views.py (e.g. from .models import Feedback) return the same traceback, but work properly on the website. What is the best way to import from a folder located in the app folder, and why are the usual import methods not working? -
Django Model Fields: Keeping track of list of possible items
I'm creating a Django model, where (as a simplified example) a user group (Users are all assigned to a group) will be able to access files of a certain file type, and which types a group can access will change by group. The list of files can be any of ~10 common file types. This list might change, but that's probably not common. Roughly speaking, I see two ways of doing this. Representing the file types as a list of strings for each user [".jpg", ".txt", ".zip"] or, as a 1:M relationship with some sort of "FileExtension" Object. These are cases in which I imagine the ORM route would be much preferred (Ex: If it's important to keep track of Each file extension's use case as for "image", "text", "audio", etc) But what if there's no other information we really need to consider here but the file extension itself? Is there a reason to create a whole model for just a few strings? In my actual project, I want to avoid the complications of creating and maintaining multiple models and storing those in the DB if I can. Rough Possible Code Examples of each: String/List approach: class UserGroup(models.Model): group_name = …
