Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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improperly configured database, django+python+postgres
I was working on a login page and it worked, abandoned the project for a couple of months and when I got back to it I was getting this error: settings.DATABASES is improperly configured. Please supply the NAME value. Full Traceback Traceback (most recent call last): File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\exception.py", line 47, in inner response = get_response(request) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\decorators\cache.py", line 44, in _wrapped_view_func response = view_func(request, *args, **kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\admin\sites.py", line 410, in login return LoginView.as_view(**defaults)(request) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\generic\base.py", line 70, in view return self.dispatch(request, *args, **kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\utils\decorators.py", line 43, in _wrapper return bound_method(*args, **kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\decorators\debug.py", line 89, in sensitive_post_parameters_wrapper return view(request, *args, **kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\utils\decorators.py", line 43, in _wrapper return bound_method(*args, **kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\utils\decorators.py", line 130, in _wrapped_view response = view_func(request, *args, **kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\utils\decorators.py", line 43, in _wrapper return bound_method(*args, **kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\decorators\cache.py", line 44, in _wrapped_view_func response = view_func(request, *args, **kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\contrib\auth\views.py", line 63, in dispatch return super().dispatch(request, *args, **kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\generic\base.py", line 98, in dispatch return handler(request, *args, **kwargs) File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\views\generic\edit.py", line 141, in post if form.is_valid(): File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\forms\forms.py", line 177, in is_valid return self.is_bound and not self.errors File "C:\Users\Zeyad\AppData\Local\Programs\Python\Python39\lib\site-packages\django\forms\forms.py", line 172, in errors self.full_clean() … -
FOREIGN KEY constraint failed - Django
So I'm trying to make a delete route for my API but I'm encountering a problem. Whenever I hit the delete route I get an error which is django.db.utils.IntegrityError: FOREIGN KEY constraint failed. I'm trying to delete a model if the delete route is hit. I have done makemigrations and migrate but there were no changes. Example of my code is like this: class RandomAPIView(APIView): def delete(self, request, id, format=None): product = Product.objects.get(pk=id) product.delete() return Response({'Success':'Product has been deleted'}) product in models.py class Product(models.Model): name = models.CharField(max_length=200) category = models.ForeignKey(Category, on_delete=models.CASCADE, blank=True, null=True) def __str__(self): return self.name -
Django Iterating through Queryset and taking user input
have a query on Django. I have a model as follows - class FileSheetData(models.Model): file = models.ForeignKey(File,related_name='sheet',on_delete=models.CASCADE) var_2 = models.BooleanField(blank=False,default=False) var_3 = models.PositiveIntegerField(blank=False,default=0) I want to create a view which iterates through a filtered queryset within this model and allows the user to update the var_2 and var_3 for each instance in the model? What's the best way to do this? -
Method that count minutes from post publishing
I'm writing small social web application using Django. So I need to count minutes from post publishing (e.g like it looks in Twitter) I tried to do something like this: class Post(models.Model): # post model fields @property def publish_date(self): if self.date >= (timezone.now() - datetime.timedelta(hours=1)): return f'{timezone.now().minute - self.date.minute} minutes ago' else: return self.date And use it into HTML like this: <span id="post_date">{{ p.publish_date }}</span>, where p is post instance But sometimes it's returns negative values (like in example below) So how can I correctly realize this? -
Page not found (404) Request Method: GET Request URL: http://127.0.0.1:8000/media/Profile_pics/itachi.jpg
i am trying to load profile picture for each user default profile picture for user is default.jpg But Happning is i am unable to load profile picture Page Not found Error occurs. after running my program the media directory created in my project file with Profile_picture directory and i saved my default.jpg in media and uploaded profile picture are saved in Profile_picture Model i created for profile picture is : class Profile(models.Model): user = models.OneToOneField(User, on_delete=models.CASCADE) profile_picture = models.ImageField(default='default.jpg',upload_to='Profile_pics') settings i changed in my project are: MEDIA_ROOT = os.path.join(BASE_DIR, 'media') MEDIA_URL = '/media/' Settings i changed what said in documentation are from django.contrib import admin from django.urls import path,include from users import views as user_view from django.contrib.auth import views as auth_views from django.conf import settings from django.conf.urls.static import static urlpatterns = [ path('',include('CovidHelp.urls')), path('profile/',include('users.urls')), path('register/',user_view.register,name='register'), path('login/',auth_views.LoginView.as_view(template_name='users/login.html'),name='login'), path('logout/',auth_views.LogoutView.as_view(template_name='users/logout.html'),name='logout'), path('admin/', admin.site.urls), ] + static(settings.STATIC_URL, document_root=settings.STATIC_ROOT) ERROR I AM GETTING IS: Page not found (404) Request Method: GET Request URL: http://127.0.0.1:8000/media/Profile_pics/itachi.jpg Using the URLconf defined in MyCovidHelp.urls, Django tried these URL patterns, in this order: [name='Home'] about/ [name='About'] profile/ register/ [name='register'] login/ [name='login'] logout/ [name='logout'] admin/ ^static/(?P<path>.*)$ The current path, media/Profile_pics/itachi.jpg, didn't match any of these. -
When trying to set a django session value, I have Type Error "Object of type Decimal is not JSON serializable" while it is a string value. Why?
I would like to record a discount code from input users. I have set up a UserDiscountForm(forms.Form) (in forms.py). In the view, I would like to record in the session, the data that a user inputs. But when I try to set the value (after checking that the form is valid), it raises a TypeError: "Object of type Decimal is not JSON serializable". I don't understand because the data I am trying to save is a string value. In addition, I am able to save other data in the session (a shopping cart and a shipping address) the similar way and it works perfectly. forms.py (user_input is a string) from django import forms class UserDiscountForm(forms.Form): user_discount = forms.CharField(label='discount code ?', label_suffix="-->", help_text="Entrez discount code", required=False) def clean_user_discount(self, *args, **kwargs): user_input = self.cleaned_data['user_discount'] if len(user_input) > 4: raise forms.ValidationError("longueur > 4") else: print(type(user_input)) return user_input views.py (form.cleaned_data['user_discount'] is a string) from django.shortcuts import render, get_object_or_404 from django.http import JsonResponse from . basket import Basket from store.models import Product from discount.forms import UserDiscountForm def basket_summary(request): basket = Basket(request) form = UserDiscountForm(request.POST or None) context = {'basket':basket, 'form':form} if request.method == 'POST': if form.is_valid(): print(form.cleaned_data['user_discount']) print(type(form.cleaned_data['user_discount'])) request.session['discount_code'] = form.cleaned_data['user_discount'] form = UserDiscountForm() context … -
Django Country State City Chained Dropdown
Configuration: I have created 2 apps csc and members. CSC: contains country, state, city and Users contains a custom user model. The users model using foreign keys to access country, state and city from CSC app. The CSC database contains all the countries, states, cities. And i am displaying user list in fronend and also an option to filter the content by country, state, city by django-filter. I am using django smart_selects to chain them in admin. Question: I wanted to show only those countries, states and cities, which has the members not all my country database. and also i wanted to link those 3 dropdowns. CSC - Models.py class Country(models.Model): name = models.CharField(_('Country'), max_length=255, null=True) country_code = models.CharField(_('Code'), max_length=10, null=True) iso_code_short = models.CharField(_('ISO Code Short'), max_length=2, null=True) iso_code_long = models.CharField(_('ISO Code Long'), max_length=3, null=True) def __str__(self): return self.name class State(models.Model): country = models.ForeignKey(Country, on_delete=models.CASCADE) name = models.CharField(_('State'), max_length=255, null=True) def __str__(self): return str(self.name class City(models.Model): country = models.ForeignKey(Country, on_delete=models.CASCADE) state = ChainedForeignKey('State', chained_field="country", chained_model_field="country", show_all=False, auto_choose=True) name = models.CharField(_('City'), max_length=255, null=True) def __str__(self): return str(self.name) Members - models.py class CustomUser(AbstractUser): username = None email = models.EmailField(_('Email'), max_length=255, unique=True) first_name = models.CharField(_('First Name'), max_length=100, null=True, blank=True) last_name = models.CharField(_('Last Name'), … -
Django - Sending POST request to another webiste - lack of headers
I'm currently struggling to integrate third-party payment system with my django website. When sending POST request along with form data to payment site it responds with an 403 Forbidden error - CSRF verification failed. You are seeing this message because this HTTPS site requires a 'Referer header' to be sent by your Web browser, but none was sent.. I've installed cors_headers, configured it as suggested in documentation and set CORS_ALLOW_ALL_ORIGINS temporarily to True. When inspecting network tab I've noticed that when requests are within same domain requests are included: same-origin-headers But when sending POST request to the third-party site, they are not: cross-origin-headers I'm including my django view as well as html form: Django view: def payment_loading(request): if request.method == 'GET': order = Order.objects.get(session=request.session.session_key) context = { 'order': order, } return render(request, 'payment_loading.html', context) HTML form: <h1>Processing payment</h1> <form name="dotpay_post" action="https://ssl.dotpay.pl/test_seller/" method="POST"> {% csrf_token %} <input name="api_version" value="{{ order.dotpay_object.api_version }}" type="hidden"> <input name="id" value="{{ order.dotpay_object.shop_id }}" type="hidden"> <input name="amount" value="{{ order.dotpay_object.amount }}" type="hidden"> <input name="currency" value="{{ order.dotpay_object.currency }}" type="hidden"> <input name="description" value="{{ order.dotpay_object.description }}" type="hidden"> <input name="control" value="{{ order.dotpay_object.control }}" type="hidden"> <input name="url" value="{{ order.dotpay_object.url }}" type="hidden"> <input name="type" value="{{ order.dotpay_object.type }}" type="hidden"> <input name="urlc" value="{{ order.dotpay_object.urlc }}" type="hidden"> <input … -
How to integrate worldpay payment gateway with django app?
I am trying to integrate worldpay payment gateway into my django app. In their documentation there is only cURL provided for reference. Can anyone help me how to get started with it using python requests or urllib module? -
django complete email verification
before this question is going to be marked as a possible duplicate, I want to address a few things. I want to make sure that users have a single email field called email. They also have an is_verified field to indicate whether the email has been verified. There are a few pitfalls in most of the email verification implementations. Lets say that an user creates an account and has an unverified email. Lets say that the user does not actually own the email, though. Now, the actual owner of the email enters the site. But, as the email is already saved in the database, we get an integrity error - that the email is already in use. Thus, any scammer can enter a random email and claim it. This reduces the user experience. How can this be avoided so as to provide a complete email verification system? ( One where the actual owners can claim their emails) thanks a lot! -
django message alert exit button doesn't work
I'm new in django. I try to use the message alert to highlight the succes in posting new item to the display. Alert window includes exit button 'x' to dismiss alert. Message window works but the exit button doesn't and I can't figure out why. My html: {% if messages %} {% for message in messages %} <div class="alert alert-warning alert-dismissable" role="alert"> <button class="close" data-dismiss="alert"> <small><sup>x</sup></small> </button> {{message }} </div> {% endfor %} {% endif %} My viev: from django.contrib import messages ... ... messages.success(request,('Succes')) Can you tell me, why it doesn't work? -
Django: Is there a way to manually order objects in a ManyToManyField?
Here is my models.py: from django.db import models class Photo(models.Model): file = models.ImageField(upload_to='images') class Album(models.Model): photos = models.ManyToManyField(Photo,related_name="photos",blank=True) admin.py from .models import Photo, Album class AlbumAdmin(admin.ModelAdmin): filter_horizontal = ("photos",) admin.site.register(Photo) admin.site.register(Album, AlbumAdmin) Is there some way to manually order the models in the filter_horizontal, or do I just have to do all that in the views.py using python? -
i have treid writing calc in place of . but still it show theres no package named calc
enter image description here please help I am not able to continue my Django tutorial -
Why is my Django server not running after following all instructions properly?
I am a beginner learning Django. I've been watching this video on free code camp and it is teaching me to make a uro shortner. However, even after following exact steps my Django server isn't starting to run. Do help -
Is the a way in which I can integrate whatsApp Order in my django ecommerce website
Am creating a django ecommerce website and I want to add an option where users can checkout through whatsapp. I want them to be able to send all their orders to the admin's whatsapp. Anyone who can help me -
How to implement Django-private-chat2?
Has anyone used Django-private-chat2? I am struggling to find a tutorial on this as no documentation is available. Please tell how to implement it? -
I am new to python and This is the TypeError:'<=' not supported between instances of 'datetime.datetime' and 'module'
import datetime from django.db import models from django.utils import timezone class Question(models.Model): question_text = models.CharField(max_length=200) pub_date = models.DateTimeField("Date published!!!") def __str__(self): return self.question_text def was_published_recently(self): now = timezone.now() return now - datetime.timedelta(days=1) <= self.pub_date <= now -
how to make text stay after the search has been made
I have a serch field on my page <form method="GET" class="container mb-5"> <input type="search" class="form-control rounded" placeholder="Write a name" aria-label="Search" aria-describedby="search-addon" name="search"/> <button type="submit" class="btn btn-outline-primary px-5" >Search</button> </form> And here is my views def my_view(request): value_one = request.GET.get("search", None) objects = MyModel.objects.all() if value_one: objects = objects.filter(field_one=value_one) After I input something in a search field and push the button 'search', text which was in search field dissapears, I want it to stay until the next input. Is it possible to do with Django or not? Don't even know how to google it, everything I found was on different topic -
How to automatically update a page without refreshing in django?
I am creating a website using Django on the stock market. I am fetching the live stock market data from an API. I want to update the live price of a stock every 5 seconds (which is given by the API). How can I do this without refreshing the page? I found that Ajax is very helpful for this but I am not being able to implement this properly. Thus, can someone please give an example of the code which is required in the html page to update the values using Ajax. I was thinking of using a separate URL which could send the data in a JSON format. Please help me out if possible. -
Post request Manytomany field DRF with postman
Objective: Creating a new entry in database from Postman using the "POST". I am trying to send the data from Postman and I am using nested serializing. I have changed the create method i have shared the snippet below. Also, I tried this solution but it did not work. Can someone please point out the mistake I am making? When I am trying to post as form-data the error is {"magazine":["This field is required."]}. When I am trying to post it as raw data the error is Direct assignment to the forward side of a many-to-many set is prohibited. Use magazine.set() instead. Here is my models: class Article(models.Model): title = models.CharField(max_length=100) content = models.TextField() author = models.ForeignKey('authors.Author', on_delete=models.CASCADE) magazine = models.ManyToManyField('articles.Magazine') def __str__(self): return self.title class Magazine(models.Model): name = models.CharField(max_length=30) title = models.CharField(max_length=100) def __str__(self): return self.name This is my serializers: class MagazineSerializer(serializers.ModelSerializer): class Meta: model = Magazine fields = '__all__' class ArticleSerializer(serializers.ModelSerializer): author = AuthorSerializer(read_only=True, many=False) magazine = MagazineSerializer(many=True) class Meta: model = Article fields = [ 'title', 'content', 'author', 'magazine', ] def create(self, validated_data): allmags = [] magazine = validated_data.pop('magazine') for i in magazine: if Magazine.objects.get(id=magazine["id"]).exists(): mags = Magazine.objects.get(id=magazine["id"]) allmags.append(mags) else: return Response({"Error": "No such magazine exists"}, status=status.HTTP_400_BAD_REQUEST) … -
How to automatically fill pre-existing database entries with a UUID in Django
I have added a UUID to the following model: class Post(models.Model): uuid = models.UUIDField(default=uuid.uuid4, editable=False) ... But there already are entries in the database that were created without the uuid field. When I run migrate, it adds the same UUID to all my previous objects. Is there an easy way of populating the existing objects with a different UUID automatically? -
why my server terminal doesnt show error?
I am connected to my VPS (Ubuntu) via SSH. I use Django, where I process 1000's of images via Django-imagekit ( PIL ). but for some reason, it is not generating an error it just stops/terminates there. it shows all other print commands and everything. yes, I tried 'try and except' but it doesn't work, it just terminates at 'try' only. anyone any idea? -
AttributeError while accessing serializer.data in DRF serializer
This is my model and BaseManager: class CustomUserMangager(BaseUserManager): def create_user(self,email,password,**extra_fields): if not email: raise ValueError(_("Email is required")) email = self.normalize_email(email) user = self.model( email = email, **extra_fields ) user.set_password(password) user.save() return user def create_superuser(self, email, password, **extra_fields): extra_fields.setdefault('is_staff', True) extra_fields.setdefault('is_superuser', True) extra_fields.setdefault('is_active', True) if extra_fields.get('is_staff') is not True: raise ValueError(_('Superuser must have is_staff=True.')) if extra_fields.get('is_superuser') is not True: raise ValueError(_('Superuser must have is_superuser=True.')) return self.create_user(email, password, **extra_fields) class CustomUser(AbstractUser): username = None email = models.EmailField(_("Email address"), unique=True) USERNAME_FIELD = 'email' REQUIRED_FIELDS = [] objects = CustomUserMangager() def __str__(self) -> str: return self.email and this is my Serializer: class CustomUserSerializer(serializers.ModelSerializer): class Meta: model = CustomUser fields = ('id','email','is_active') In Python mange.py shell: I try to use this: user = CustomUser.objects.get_or_create(email="a@gmail.com",password="1") >>> user (<CustomUser: a@gmail.com>, True) >>> user_serializer = CustomUserSerializer(user) >>> user_serializer.data and get this error: AttributeError: Got AttributeError when attempting to get a value for field email on serializer CustomUserSerializer. The serializer field might be named incorrectly and not match any attribute or key on the tuple instance. Original exception text was: 'tuple' object has no attribute 'email' I dont know wwhat is the problem here :(( -
Uncaught ReferenceError: localstorage is not defined at (index):1228
when I tried to create a cart using javascript in local storage using django, it is showing me this error into the chrome console section.. what should I do now..? what is the proper code to not to get any kind of error like that. -
How to filter a comma separated string in Django Rest Framework?
I have some data that is similar to this: position: "1B, 2B, 3B, SS" I'd like to be able to run a query such as /players/?position=1B, however, this currently does not return anything because the items are separated by a comma. Here is stripped down version of the views.py: class CharInFilter(django_filters.BaseInFilter, django_filters.CharFilter): pass class PlayerProfileFilter(django_filters.FilterSet): position = CharInFilter(field_name='display_position', lookup_expr='in') Is there a way to filter the data in this way?
