Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Django html issuce unable to click hyperlink
i created a Djange, There are .html file in my templates. i just dont know why when clink this link the website no any respone. But if i open this html without django the link is work <a href="file://\\HKCT-OFFS-01\Data\Information Technology\Documents\Contract">useful link </a> anyone have any idea? T^T <a href="https://www.timeanddate.com/worldclock/hong-kong/hong-kong">website</a> i tried this is work <a href="file://\\HKCT-OFFS-01\Data\Information Technology\Documents\Contract">useful link </a> but fail to open share folder FYI\\HKCT-OFFS-01\Data\Information Technology\Documents\Contract This is a workable path. -
Handling different actions based on click event and search in Django plotly dash
I am working on Django plotly dash app and have some callback functions that are triggered when two input elements sidebar-graph (it is a bar chart) and search-top2vec-input (it is a search box) receive updates. The callback function, update_charts_word_graph_app2, has the following signature: def _register_app2_callbacks(self): @self.app2.callback( [ Output("sidebar-content", "children"), Output("network-graph-chart", "children"), Output("graph-title-text", "children"), Output("word-cloud-title-text", "children"), Output("top-10-urls-title-text", "children"), Output("word-cloud-graph", "children"), Output("top-10-urls-graph", "children"), Output("search-error-message", "children"), Output("ls-loading-output-top2vec", "children"), ], [ Input("sidebar-graph", "clickData"), Input("search-top2vec-input", "value"), ], ) def update_charts_word_graph_app2(click_data, search_value): return self._update_charts_word_graph(click_data, search_value) # Return all outputs The issue I'm facing is that when I click on the bar chart, the click_data is not None anymore and then I try to perform a search, the search functionality doesn't work as expected because the click event data is still present. Here's the relevant part of the code: def _update_charts_word_graph(self, click_data=None, search_value=None): """ update the word graphs and related components based on clicke data or search value. Args: click_data (dict, optional): Click data from the graph. Defaults to None. search_value (str, optional): Search value from the input. Defaults to None. Returns: List: List of components to be updated """ object_graph = Graph() if click_data is not None: print("." * 20) print("click") print(click_data) print(search_value) print("." * 20) … -
How to connect Django to AWS RDS
I was following a Django tutorial but now I can't connect to the database. My settings.py file looks like this: DATABASES = { 'default': { 'ENGINE': 'django.db.backends.postgresql', 'NAME': 'postgres', 'USER': 'masteruser', 'PASSWORD': 'passKode', 'HOST': 'w3-django-project.czmrkj1y3qxu.eu-west-2.rds.amazonaws.com', 'PORT': '5432' } } But when I run the command python manage.py migrate I get errors as shown below: Performing system checks... System check identified no issues (0 silenced). Exception in thread django-main-thread: Traceback (most recent call last): File "/home/amen/Documents/PRJKTZ/PYTHON/W3Django/myworld/lib/python3.10/site-packages/django/db/backends/base/base.py", line 289, in ensure_connection self.connect() File "/home/amen/Documents/PRJKTZ/PYTHON/W3Django/myworld/lib/python3.10/site-packages/django/utils/asyncio.py", line 26, in inner return func(*args, **kwargs) File "/home/amen/Documents/PRJKTZ/PYTHON/W3Django/myworld/lib/python3.10/site-packages/django/db/backends/base/base.py", line 270, in connect self.connection = self.get_new_connection(conn_params) File "/home/amen/Documents/PRJKTZ/PYTHON/W3Django/myworld/lib/python3.10/site-packages/django/utils/asyncio.py", line 26, in inner return func(*args, **kwargs) File "/home/amen/Documents/PRJKTZ/PYTHON/W3Django/myworld/lib/python3.10/site-packages/django/db/backends/postgresql/base.py", line 269, in get_new_connection connection = self.Database.connect(**conn_params) File "/home/amen/Documents/PRJKTZ/PYTHON/W3Django/myworld/lib/python3.10/site-packages/psycopg2/__init__.py", line 122, in connect conn = _connect(dsn, connection_factory=connection_factory, **kwasync) psycopg2.OperationalError: connection to server at "w3-django-project.czmrkj1y3qxu.eu-west-2.rds.amazonaws.com" (172.31.11.179), port 5432 failed: Connection timed out Is the server running on that host and accepting TCP/IP connections? The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/usr/lib/python3.10/threading.py", line 1016, in _bootstrap_inner self.run() File "/usr/lib/python3.10/threading.py", line 953, in run self._target(*self._args, **self._kwargs) File "/home/amen/Documents/PRJKTZ/PYTHON/W3Django/myworld/lib/python3.10/site-packages/django/utils/autoreload.py", line 64, in wrapper fn(*args, **kwargs) File "/home/amen/Documents/PRJKTZ/PYTHON/W3Django/myworld/lib/python3.10/site-packages/django/core/management/commands/runserver.py", line 136, in inner_run self.check_migrations() File "/home/amen/Documents/PRJKTZ/PYTHON/W3Django/myworld/lib/python3.10/site-packages/django/core/management/base.py", line … -
Django Local Host works but hosting servers don't
I'm really new to programming. I had to make a web application with Django, so I made a weather app. It works fine if I run it locally with runserver but I tried various hosting websites and none work. This is my GitHub Repository. I hope anyone can help me. Various hosting websites. Want my application to work online but it doesn't. -
how to use EAV in django?
I want to use django_EAV 2 in my store project made by Django template to have different attribute for each product but i don't know how to use it and there were no tutorial in the web.can some body help me plz? -
*293 connect() failed (111:connection refused) while connecting to upstream, client 221.148.103.36, server;
when i try to test via postman, i get 502 bad gate error. so i explored docker at aws ec2 server(and conducted 'sudo docker logs {containerId}), and found this error sentence. [error] 20#20: *293 connect() failed (111: Connection refused) while connecting to upstream, client 221.148.103.36, server. is there anyone how to fix this error? maybe, i think its because of nginx.conf file problem. upstream django_rest_framework_17th { server web:8000; } server { listen 80; location / { proxy_pass http://django_rest_framework_17th; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header Host $host; proxy_redirect off; } location /static/ { alias /home/app/web/static/; } location /media/ { alias /home/app/web/media/; } } this is my nginx.conf file. plus, i'm doing project with django, pycharm. -
Place items in the same row in Bootstrap
I have a problem with the following code. There are two forms after each other: searchform and booksform. I want to put the searchform and the first button of the booksform in the same row with Bootstrap. {% include 'header.html' %} {% load static %} <section class="bg-light px-5 py-4"> <div class="row mb-4"> <div class="col-6"><h2 class="h2">Könyvek</h2></div> </div> <form id="searchform" onSubmit="return false;"> <div class="row"> <div class="col-3"><input type="text" class="form-control" id="searchbar"></div> <div class="col-2"><input type="button" value="Keresés" class="btn btn-outline-secondary" id="search"></div> </div> </form> <form action="{% url 'books' %}" method="post" id="booksform" name="booksform"> {% csrf_token %} <div class="col-7 text-end"><input type="button" class="btn btn-primary me-3" value="Mentés" id="save" name="save"></div> <table class="table table-light table-hover"> <thead> <th>Angol cím</th> <th>Magyar cím</th> <th class="text-center">Olvastam</th> </thead> <tbody id="tbody"> {% for i in books %} <tr> <td>{{i.eng_title}}</td> <td>{{i.title}}</td> <td class="text-center"><input type="checkbox" name="check-{{i.id}}" id="check-{{i.id}}" class="form-check-input"></td> </tr> {% endfor %} </tbody> </table> <input type="hidden" name="checked" id="checked"> </form> </section> <script src="{% static 'js/books.js' %}" defer data-tocheck="{{books_read}}" data-books="{{booksjson}}"></script> {% include "footer.html" %} I tried to put <div class="row> before the searchform and </div> after the save button in booksform. It didn't work because I opened the div before the booksform and I closed it inside of that. Thank you for your answers. -
foreign key brings all fields, I only want foreignkey.name Django
from django.db import models from vendors.models import Vendor # Create your models here. class Product(models.Model): name = models.CharField(max_length=50, verbose_name= ('Product Name')) description = models.CharField(max_length=50, verbose_name= ('Description')) vendor = models.ForeignKey(Vendor, on_delete=models.CASCADE) cost_price = models.DecimalField(max_digits=10, decimal_places=2, verbose_name= ('Cost Price')) selling_price = models.DecimalField(max_digits=10, decimal_places=2, verbose_name= ('Selling Price')) quantity = models.IntegerField(default=0) def __str__(self): return f"Name: {self.name}, Description: {self.description}, Vendor: {self.vendor}, Cost Price: {self.cost_price}, Selling Price: {self.selling_price}, Quantity: {self.quantity}" above is my models.py below is my forms.py class ProductForm(forms.ModelForm): vendor = forms.ModelChoiceField(queryset=Vendor.objects.only('name')) class Meta: model = Product fields = ['name', 'description', 'vendor', 'cost_price', 'selling_price', 'quantity'] def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.fields['vendor'].queryset = Vendor.objects.only('name') self.fields['vendor'].empty_label = 'Select a vendor' for field_name in self.fields: if field_name != 'vendor': self.fields[field_name].widget.attrs.update({'value': ''}) def label_from_instance(self, obj): return obj.name when loading the purchaseform, I need the vendor field to populate only the name of vendor, now it's populating all fields of vendors_vendor table. Please guide me. -
Managing Inactive SQS Queues in Django with Celery on AWS ECS
I have Django app where I am using SQS and celery. Everything is hosted on ECS where I have 3 services: django-api, celery-beat and celery-worker. I have enabled autoscaling policy on celery-worker service that is creating containers/task based on number of MessagesVisible on SQS, by default there are 0 containers in this service. The problem is that after 6 hours my alarms and SQS are becomming inactive and I need to wait 10-15 minutes to run first celery during a day. It seems that this is some kind of optimization done automatically by AWS. You can read more about that here: https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-monitoring-using-cloudwatch.html I was thinking to send empty message to SQS every hour to avoid going to inactive but I don't want to create periodic task because that will trigger my alarm and it will create new container on celery-worker service to perform this task and that will cost me money. The question is what is the most efficient way to handle this issue without using celery worker? Is there any way to directly send empty message to SQS from Django every hour? Any help would be appreciated. -
Creating user and user profile with one request which has nested JSON body in Django rest framework
I want to make api to create user and disease instance. accounts/serializers.py: class MyUserSerializer(serializers.ModelSerializer): user_disease = DiseaseSerializer(many=False, read_only=False) class Meta: model = MyUser fields = '__all__' def create(self, validated_data): print("validated_data : ", validated_data) user = MyUser.objects.create(**validated_data) # disease_data = validated_data['disease'] # disease = Disease.objects.create(user, **disease_data) return user accounts/views.py: class SignUpAPIView(APIView): permission_classes = [AllowAny] def post(self, request): serializer = MyUserSerializer(data=request.data) if serializer.is_valid(): user = serializer.save() # After validation about user, generate token pair token = TokenObtainPairSerializer.get_token(user) refresh_token = str(token) access_token = str(token.access_token) res = Response( { "user": serializer.data, "message": "sign_up success", "token": { "access": access_token, "refresh": refresh_token } }, status=status.HTTP_201_CREATED ) # Store JWT token in cookie res.set_cookie("access", access_token, httponly=True) res.set_cookie("refresh", refresh_token, httponly=True) return res else: print("is_valid() is false!") return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST) def perform_create(self, serializer): serializer.save(user=self.request.user) when I'm trying to send with POST method, This is a JSON Content: { "identifier": "test1", "password": "test1", "username": "username1", "email": "test1@naver.com", "birth": "19960314", "gender": true, "isForeigner": false, "height": 169, "weight": 60, "pw_queiston_idx": 0, "pw_answer": "test_answer", "disease": { "arrhythmia": true } } And its response : Status: 400 Bad Request Size: 44 Bytes Time: 15 ms { "user_disease": [ "This field is required." ] } What I want to do Making api to create User … -
How to create a store with Django and Python that can handle millions of products?
Suppose I want to create a store with Django and Python. In each store, there are some products with a title, an amount of inventory, and some common features. However, there are some unique features for each product. For example, the features of a refrigerator are different from those of a dishwasher. It is not correct to define a separate model for each type of product when we may have millions of products like Amazon. What solution do you suggest for this problem? -
How can I ensure that user registration data is stored in both the 'Register' and 'Login' tables in my database?
Why is the user registration data only being stored in the 'Register' table and not in the 'Login' table in my Django application with MySQL? How can I modify my code to ensure that the registration data is stored in both tables when a user registers? I have separate tables for registration and login, where the 'Register' table contains columns such as 'Ent_ID', 'Username', 'Email_ID', and 'Password', and the 'Login' table contains columns such as 'Login_ID', 'Ent_ID' (foreign key referencing 'Register' table), 'Email_ID', and 'Password'. Any insights or suggestions on how to resolve this issue would be greatly appreciated. Thank you! I have created two tables in my Django application, 'Register' and 'Login', for user registration and login functionality respectively. The 'Register' table has columns like 'Ent_ID', 'Username', 'Email_ID', and 'Password', while the 'Login' table has columns like 'Login_ID', 'Ent_ID' (foreign key referencing 'Register' table), 'Email_ID', and 'Password'. When a user registers, I expected their registration data to be stored in both the 'Register' and 'Login' tables. However, only the data is being stored in the 'Register' table and not in the 'Login' table. As a result, I am unable to perform login functionality using the registered credentials. I have … -
I am getting an error in django saying it might be an issue with circular import but I am not sure how to fix. I think my code is correct
I am very new to coding so I will explain what I did step by step. I created a virtual environment in command prompt and then I installed django in that. Then, I opened the project in vs code and activated the new environment in the terminal. I then create calc by running the command: python manage.py startapp calc This my urls.py file in calc: ** from django.urls import path from . import views #from all import views urlpatterns = [ #setting up the mapping path('',views.home,name='home') #homepage can be represented by '' or '/' ]** and this is my views.py file: ** from django.shortcuts import render from django.http import HttpResponse def home(request): return HttpResponse("Hello world")** and my project url.py file: **from django.contrib import admin from django.urls import path,include urlpatterns = [ path('', include('calc.urls')), path('admin/', admin.site.urls), ]** but when i run the command - python manage.py runserver I am getting this error: File "C:\Users\maya\env1\Lib\site-packages\django\urls\resolvers.py", line 725, in url_patterns raise ImproperlyConfigured(msg.format(name=self.urlconf_name)) from e django.core.exceptions.ImproperlyConfigured: The included URLconf '<module 'calc.urls' from 'C:\Users\maya\myprojects\firstproject\calc\urls.py'>' does not appear to have any patterns in it. If you see the 'urlpatterns' variable with valid patterns in the file then the issue is probably caused by a circular import. … -
jQuery is not giving output in console
<script src="https://code.jquery.com/jquery-3.7.0.min.js" integrity="sha256-2Pmvv0kuTBOenSvLm6bvfBSSHrUJ+3A7x6P5Ebd07/g=" crossorigin="anonymous"></script> <script> localStorage.setItem('cart', JSON.stringify({})) if (localStorage.getItem('cart') == null) { let cart = {} console.log('Running properly....') } else { cart = JSON.parse(localStorage.getItem('cart')) } buttons = document.querySelectorAll('.cart') for (let button of buttons) { button.addEventListener('click', () => { if (cart[button.id] != undefined) { cart[button.id] += 1 } else { cart[button.id] = 1 } localStorage.setItem('cart', JSON.stringify(cart)) console.log(cart) }) } </script> I was building a ecom platform in Django so I wanted to make a function that whenever I click on my add to cart button the console will return the product number. That is why I wrote this jQuery at the very end of my index.html file but it's not working. Should I download jQuery for this? Because CDN is not working on my computer. -
Are there any functions to get only the language used to display browser UI in Django?
I set 3 languages on Google Chrome, then I set the 2nd language English for displaying the Google Chrome UI as shown below: Then, with request.META['HTTP_ACCEPT_LANGUAGE'], I tried to get only the 2nd language English used to display the Google Chrome UI because for users, I want to show my website in their languages used to display their browser UI by translation when they visit my website but I got all the languages set in Google Chrome as shown below: # "views.py" from django.http import HttpResponse def test(request): print(request.META['HTTP_ACCEPT_LANGUAGE']) # fr,en;q=0.9,ja;q=0.8 return HttpResponse("Test") So, are there any functions to get only the 2nd language English used to display the Google Chrome UI? -
How to change the default cookie name `django_language` set by `set_language()` in Django?
I could set and use set_language() as shown below: # "core/urls.py" ... urlpatterns += [ path("i18n/", include("django.conf.urls.i18n")) # Here ] Now, I want to change the default cookie name django_language below considering the security because users can easily know that Django is used for the website: So, how can I change the default cookie name django_language? -
Django: psycopg2: Could not translate host name to address: Name or service not known
I am attempting to connect to a PostgreSQL DB using psycopg2 and a django app. The pods running the application report the following error: 127.0.0.1 - - [13/Jul/2023:17:35:05 -0500] "GET /read HTTP/1.1" 301 0 "-" "PostmanRuntime/7.32.3" An error occurred while processing the GET request: could not translate host name "resume-postgresql-primary-hl " to address: Name or service not known Internal Server Error: /read/ When I run it on localhost, it works (connects to the DB and returns the data) Nslookup from the pods is also working: root@resume-backend-677cd68846-m22h8:/srv/app# nslookup resume-postgresql-primary-hl Server: 10.96.0.10 Address: 10.96.0.10#53 Name: resume-postgresql-primary-hl.resume.svc.cluster.local Address: 10.244.0.114 I can't figure out what is going on. Any ideas? -
How to include all fields from foreign key in django model form
I am trying to access the fields related to a foreign key from a model form. I have read the docs and it seems I should be able to access these fields with dot notation. Does what I am attempting make sense? Is there a better way to do this same thing. html form {% csrf_token %} {{ form.room.room_available }} {{ form.renter }} <input type="submit" value="Submit"> </form> Models.py class Room(models.Model): roomNum = models.CharField(max_length=20) room_is_premium = models.BooleanField(default=False) room_available = models.BooleanField(default=False) class BookedRoom(models.Model): room = models.ForeignKey(Room, on_delete=models.CASCADE, null=True, blank=True) renter = models.CharField(max_length=200) start = models.BooleanField(default=True) end = models.BooleanField(default=True) Views.py def bookRoomNow(request, pk): room = get_object_or_404(Room, pk=pk) if request.method == "POST": form = BookingForm(request.POST or None) if form.is_valid(): form = form.save(commit=False) #this room.instance form.room = room form.save() return redirect('room_details', pk=room.pk) else: form = BookingForm() context= {"form":form} return render(request, 'booker/booking_form.html', context) -
How do resolve error 400 in this case with method POST of Django Rest Framework when I create join method
I am redoing a course on DRFI want to post user, group with join method but I got error 400 when I post this to becoming member. The views, the models and the serializers are below. #Views.py ``` class MemberViewSet(ModelViewSet): queryset = Member.objects.all() serializer_class = MemberSerializer @action(detail=False, methods=['post']) def join(self, request): if 'group' in request.data and 'user' in request.data: try: group = Group.objects.get(id=request.data['group']) user = User.objects.get(id=request.data['user']) member = Member.objects.create(user=user, group=group, admin=False) serializer = MemberSerializer(member, many=False) reponse = {'message': 'Joined group', 'results': serializer.data} return Response(response, status=status.HTTP_200_OK) except: response = {'message': 'Cannot join'} return Response(response, status=status.HTTP_400_BAD_REQUEST) else: response = {'message': 'Wrong params'} return Response(response, status=status.HTTP_400_BAD_REQUEST)``` #models.py ``` from django.db import models, transaction from django.contrib.auth.models import User # Create your models here. class Group(models.Model): name = models.CharField(max_length=50, null=False, unique=False) location = models.CharField(max_length=50, null=False) description = models.CharField(max_length=250, null=False, unique=False) active = models.BooleanField(default=True) class Meta: unique_together=(('name', 'location')) def __str__(self): return self.name @transaction.atomic def disable(self): if self.active is False: return self.active = False self.save() self.events.update(active=False) class Event(models.Model): name = models.CharField(max_length=25, default='Match') team1 = models.CharField(max_length=32, blank=False) team2 = models.CharField(max_length=32, blank=False) time = models.DateTimeField(null=False, blank=False) score1 = models.IntegerField(null=True, blank=True) score2 = models.IntegerField(null=True, blank=True) group = models.ForeignKey(Group, related_name='events', on_delete=models.CASCADE) active = models.BooleanField(default=True) def __str__(self): return self.name class Member(models.Model): group … -
Python Django not able to get the data in a table form in my page instead it is returning a plain json object
my html page <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> {% load static %} <link rel="stylesheet" href="{% static 'style.css' %}"> <body> <div class="container"> <h1>Product</h1> <table id="products" border="1"> <thead> <th>Id</th> <th>Name</th> <th>Quantity</th> <th>Price</th> </thead> <tbody> <tr> <td id="product-id"></td> <td id="product-Name"></td> <td id="product-quantity"></td> <td id="product-price"></td> </tr> </tbody> </table> <br><br> <a href="{% url 'index' %}"><button id="back-button">Back</button></a> </div> <script> fetchProductDetails(); function fetchProductDetails() { const productId = getProductIdFromUrl(); fetch(`/product/${productId}`) .then(response => response.json()) .then(data => { const productData = data; const productTable = document.getElementById('productId'); const tbody = productTable.querySelector('tbody'); const row = document.createElement('tr'); row.innerHTML = ` <td>${productData.id}</td> <td>${productData.Name}</td> <td>${productData.quantity}</td> <td>${productData.price}</td> `; tbody.appendChild(row); }) .catch(error => { console.error('Error:', error); }); } function getProductIdFromUrl() { const urlSegments = window.location.href.split('/'); return urlSegments[urlSegments.length - 2]; } </script> </body> and my urls.py line which redirects me to the method path('product/<int:id>/', views.product_detail, name='product_detail'), and corresponding views method from the urls.py def product_detail(request, id): try: product = Product.objects.get(id=id, user=request.user) product_data = { 'id': product.id, 'Name': product.Name, 'quantity': product.quantity, 'price': product.price } return JsonResponse(product_data) except Product.DoesNotExist: return HttpResponseNotFound() and my urls.py path('product/<int:id>/', views.product_detail, name='product_detail'), I am getting the response like this when i hit http://127.0.0.1:8000/product/9/ I am not able to render my getbyid.html page, any suggestions? … -
One large model or two smaller models
I'm developing a database that holds financial information. I have two models: Company (~30 fields) CompanyFinacials (~120 fields) CompanyFinacials includes a field with Company as a primary key to maintain the relationship. I need to 10 add investment rounds to CompanyFinacials. Each round will have 12 fields. So, the question is, do i build it like this: class CompanyFinancials(models.Model): company = models.OneToOneField(Company, on_delete=models.CASCADE, primary_key=True) date_added = models.DateTimeField(auto_now=True) financial_start_year = models.CharField(max_length=2000, default='NONE', blank=True) ... ... ... ... class fundingRound(models.Model): company_obj = models.OneToOneField(Company, on_delete=models.CASCADE, primary_key=True) funding_stage = models.CharField(max_length=2000, default='NONE', blank=True) target_size_of_raise = models.CharField(max_length=2000, default='NONE', blank=True) invest_amount = models.CharField(max_length=2000, default='NONE', blank=True) investment_vehicle = models.CharField(max_length=2000, default='NONE', blank=True) discount_percent = models.CharField(max_length=2000, default='NONE', blank=True) pre_money_valuation = models.CharField(max_length=2000, default='NONE', blank=True) dilution = models.CharField(max_length=2000, default='NONE', blank=True) post_money_valuation = models.CharField(max_length=2000, default='NONE', blank=True) equity_percent = models.CharField(max_length=2000, default='NONE', blank=True) or like this: class CompanyFinancials(models.Model): company = models.OneToOneField(Company, on_delete=models.CASCADE, primary_key=True) date_added = models.DateTimeField(auto_now=True) financial_start_year = models.CharField(max_length=2000, default='NONE', blank=True) ... ... ... round1_funding_stage = models.CharField(max_length=2000, default='NONE', blank=True) round1_target_size_of_raise = models.CharField(max_length=2000, default='NONE', blank=True) round1_invest_amount = models.CharField(max_length=2000, default='NONE', blank=True) round1_investment_vehicle = models.CharField(max_length=2000, default='NONE', blank=True) round1_discount_percent = models.CharField(max_length=2000, default='NONE', blank=True) round1_pre_money_valuation = models.CharField(max_length=2000, default='NONE', blank=True) round1_dilution = models.CharField(max_length=2000, default='NONE', blank=True) round1_post_money_valuation = models.CharField(max_length=2000, default='NONE', blank=True) round1_equity_percent = models.CharField(max_length=2000, default='NONE', blank=True) round2_funding_stage = models.CharField(max_length=2000, default='NONE', blank=True) round2_target_size_of_raise … -
Retrieve model fields related which are related to another model (even with intermediate models/foreign_keys)?
I have model A, B and C. Model C has field X, which is a foreign key to field X_1 in model B. Model B has field Y, which is a foreign key to field Y_1 in model A. In a form, I want to retrieve only the related fields from model C, which relate to model A (in whatever way). Basically, in a form I select the function is on model C, but I select the parent is Model A (this has to do with identifying the sequence of presenting the fields). What I want to, is from model C, which field(s) relate to model A, and in which way? In this case, I would post the parent is A, the child is C, and would expect the function to return X_1__Y_1. Where X_1 represents the object in model B, and Y_1 represents the related(/parent) object in model A. What I can think of, is a seperate model, to capture all relations to other models (through a cron/celery and invoke on first setup, or through manage.py after a migration), through a breadt-first-search or something. Than I guess I could do with 4 fields: Model, Field, Destination_Model, Relation. But it … -
Trying to understand ImportError: Couldn't import Django. Are you sure it's installed and available on your PYTHONPATH environment variable?
My specific question is, how do I fix this import error so that I can run the python manage.py runsever command? For some reason my environment did get deleted and I was not pleased about that but when I reinstalled everything I had these issues. I have searched on stack overflow articles and come up empty. So far I have: I asked chat gpt what a python enviornment variable is: The PYTHONPATH environment variable in Python contains a list of directories where Python looks for modules and packages to import. It allows you to specify additional directories that Python should search when importing modules. It went on to say run pip install django. Which I have done, I also activated my virtual enviornment. How do I see my python environment variables? How do I add Django to it? Any advice? https://github.com/strikeouts27/mysite -
Duplicate validation message in Django contact form with Bootstrap 5 and Crispy Forms
I have a contact form in Django that I've styled using Bootstrap 5 and Crispy Forms. The form includes validations on fields, such as email validation and required fields. The issue I'm facing is that the validation message is being duplicated on the page when an error occurs. For example, if I submit the form without filling in the email field, two identical error messages appear. I've reviewed my code and templates multiple times, but I can't seem to find the cause of the duplication. Here's my relevant code: [forms.py] from crispy_bootstrap5.bootstrap5 import FloatingField from crispy_forms.helper import FormHelper from crispy_forms.layout import Div, Submit from django import forms from django.core.validators import EmailValidator class CustomSubmit(Submit): field_classes = "btn btn-outline-primary" class FormularioContacto(forms.Form): nombre = forms.CharField( label='Nombre', max_length=50, required=True, ) email = forms.EmailField( label='Email', required=True, validators=[EmailValidator()], error_messages={'invalid': 'Correo electrónico no válido'}, ) contenido = forms.CharField( label='Mensaje', widget=forms.Textarea(), required=False, ) def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.helper = FormHelper() self.helper.form_id = 'formularioContacto' self.helper.form_class = 'formulario' self.helper.form_method = 'post' self.helper.attrs = {'novalidate': True} # Add 'novalidate' attribute to the form self.helper.layout = Div( Div( Div( FloatingField('nombre'), FloatingField('email'), FloatingField('contenido'), Div( CustomSubmit('Enviar', 'submit', css_class='btn-lg'), css_class='text-center mt-3' ), css_class='col-md-6 mx-auto' ), css_class='row' ), css_class='container my-4' ) [views.py] import smtplib … -
How should I add custom validation to the Django admin for a non-standard model field?
I have a non-standard Django model field (pg vector list/array) which is resulting in a validation error when the admin application attempts to naively validate it: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all() I have tried specifying a vector-specific validation function using the model field's validators list, overriding the models clean method, etc. without success. What would be the appropriate way of handling this?
