Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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WebSocket connection to 'wss://www.mydomain.com:8001/' failed:
Given consumer and routing that previously working. Where is possibly the error happening here. -
How do I search for a query in Django with words that are not in the same order as a product?
products = ProductModel.objects.filter(Q(name__icontains=search) | Q(sku__icontains=search)).select_related('prices') .prefetch_related('images_set', 'remainsmodel_set', 'addressonwarehouse_set') .order_by(sortby + orderby) Example: Product: 'Silicone Case for IPhon 13' q = 'Case for IPhon 13' r = 1 item q = 'Silicone IPhon 13' ("Silicone + IPhon 13" should be displayed and the product should be matched) r = 0 item How to make it so that the search was not for the full name, and the individual words no matter what order. -
Django show notification to User between the two dates
I want to make a notification application on my web application. I want users to see notifications from the Admin panel that set the start and end dates to be displayed during those hours. class NotificationModel(model.Model): start = models.DatetimeField() end = models.DatetimeField() I have to do this without using Redis.I'll add notifications from the Admin panel that I want to show users. When I add, these notifications should only be displayed on the site between start and end dates How can I do that? Should I do it using the filter method through my model? -
Initializing a queryset for a dropdown field in a ModelForm
I have a problem with filtering a queryset through a list of object ID's. Upon form submission, the error [{'item': ['Select a valid choice. That choice is not one of the available choices.']}] shows up. When passing req (a list of integers) into a filtered queryset, Django does not accept req as a set of valid choices/objects and does not save the form. However, when passing a preset list that contains the same values as req, Django accepts and saves the form. I tried printing if req is equal to the same preset list and it returned True. views.py class TransferAddView(LoginRequiredMixin, generic.CreateView): ... def form_valid(self, form, **kwargs): ctx = self.get_context_data() inlines = ctx['inlines'] form.instance.requisition = ctx['req'] if inlines.is_valid() and form.is_valid(): tran = form.save() inlines.instance = tran inlines.save() return super(TransferAddView, self).form_valid(form) def get_context_data(self, **kwargs): ctx=super(TransferAddView,self).get_context_data(**kwargs) ctx['req'] = MaterialRequisition.objects.get(pk=self.kwargs['req']) req = list(MaterialRequisitionItems.objects.filter(requisition=ctx['req']).values_list('item', flat=True)) ctx['item'] = Item.objects.filter(item__in=req) if self.request.method == 'POST': ctx['form']=TransferModelForm(self.request.POST) ctx['inlines']=TransferInlineFormSet(self.request.POST) ctx['form'].fields['transferStatus'].initial = 0 else: ctx['form']=TransferModelForm() ctx['form'].fields['transferStatus'].initial = 0 ctx['inlines']=TransferInlineFormSet(form_kwargs={'req':ctx['req'].pk}) return ctx forms.py class TransferItemsModelForm(forms.ModelForm): ... def __init__(self, *args, **kwargs): req = kwargs.pop('req', None) super(TransferItemsModelForm, self).__init__(*args, **kwargs) ... req = list(MaterialRequisitionItems.objects.filter(requisition=req).values_list('item', flat=True)) self.fields['item'].queryset = Item.objects.filter(item__in=req) -
TypeError: login() takes 1 positional argument but 2 were given.Exception Value: login() takes 1 positional argument but 2 were given
I have written a login view using build-in auth ,django auth.login() gives above error my code. from django.contrib.auth.models import User from django.contrib.auth import authenticate,logout,login def loginpage(request): if request.method == "POST": user_name = request.POST.get("username") password = request.POST.get("password") user = authenticate(request, username=user_name, password=password) if user is not None: login(request, user) return redirect("dashboard") return render(request, "loginhtml.html") -
Why does is not entering to the right url?
I am making a project in school, making a site. when i click on nvbar its enter to the right URL but when i enter to another category its doesn't work. for example: if i enter to login: http://127.0.0.1:8000/login/ if i enter to register after login: http://127.0.0.1:8000/login/register and i need it to enter: http://127.0.0.1:8000/register Code: URLS: urlpatterns = [ path('admin/', admin.site.urls), path('', home_screen_view, name="home"), path('register/', registration_view, name="register"), path('logout/', logout_view, name="logout"), path('login/', login_view, name="login"), path('account/', account_view, name="account"), path('Sourcesofknowledge/', Sourcesofknowledge_view, name="Sourcesofknowledge"), path('customersatisfactionsurvey/', customersatisfactionsurvey_view, name="customersatisfactionsurvey"), ] nvbar: <div class="w3-top"> <div class="w3-bar w3-black w3-card w3-left-align w3-large"> <a class="w3-bar-item w3-button w3-hide-medium w3-hide-large w3-right w3-padding-large w3-hover-white w3-large w3-red" href="javascript:void(0);" onclick="myFunction()" title="Toggle Navigation Menu"><i class="fa fa-bars"></i></a> {% if request.user.is_authenticated %} <p>Hello, {{request.user.username}}</p> <a href="" class="w3-bar-item w3-button w3-padding-large w3-white">Home</a> <a href="#" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Medicinal stock</a> <a href="Sourcesofknowledge" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Sources of knowledge</a> <a href="customersatisfactionsurvey" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Satisfaction Survey</a> <a href="logout" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Logout</a> <a href="account" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">account</a> {% else %} <a href="" class="w3-bar-item w3-button w3-padding-large w3-white">Home</a> <a href="login" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Login</a> <a href="register" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Registry</a> <a href="Sourcesofknowledge" class="w3-bar-item w3-button w3-hide-small w3-padding-large w3-hover-white">Sources of knowledge</a> {% endif %} </div> </div> -
Failed to load response data: css and js resources work on one url only
I have a website that looks like this: localhost:8000: https://i.stack.imgur.com/Miz9M.png It contains a search feature that works, but when the page is rendered the style does not load. This is how the page looks when searching for all schools that have a postcode that starts with 30: localhost:8000/find: https://i.stack.imgur.com/5qdyA.png views.py: page = f'{ROOT_DIR}/templates/tst/index.html' @api_view(['GET']) def get_data(request): schools = School.objects.all() return render(request, page, {'schools': schools}) @api_view(['GET']) def filter_view(request, property, filter, search): property = __translate_property(property) filter = filter.replace(" ", "").lower() kwargs = { '{0}__{1}'.format(f'{property}',f'{filter}'):f'{search}' } schools = School.objects.filter(**kwargs) return render(request, page, {'schools': schools}) Both methods use the same index.html. When inspecting the network from browser side (url:http://localhost:8000/find/Postcode/Starts%20with/30?), the css files and js script files cannot be found with error Failed to load response data. No data found for resource with given credential. -
dockerfile with django in visual studio code won't launch due to path not found
I am following a tutorial from visual studio code on creating a docker web app to run my python script in. for your information it is visible in the following link: https://code.visualstudio.com/docs/containers/quickstart-python I followed the django tutorial before this on installing it correctly and tested it so that it works. After allowing vs code to create all my necessary files, i tried to run it via my launch.json file. { // Use IntelliSense to learn about possible attributes. // Hover to view descriptions of existing attributes. // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387 "version": "0.2.0", "configurations": [ { "name": "Python: Django", "type": "python", "request": "launch", "program": "${workspaceFolder}\\manage.py", "args": [ "runserver" ], "django": true, "justMyCode": true }, { "name": "Docker: Python - Django", "type": "docker", "request": "launch", "preLaunchTask": "docker-run: debug", "python": { "pathMappings": [ { "localRoot": "${workspaceFolder}", "remoteRoot": "/app" } ], "projectType": "django" } } ] } when i try this, i instantly get returned: > docker build --rm --pull -f "H:\Dockerfile" --label "com.microsoft.created-by=visual-studio-code" -t "h:latest" "H:\" < unable to prepare context: path "H:\"" not found The terminal process failed to launch (exit code: 1). I installed everything on my H drive, and after this error I added the H to my … -
How to handle django.http.response.StreamingHttpResponse or map object for testcase
I have test case which response is StreamingHttpResponse, not normal HttpResponse (it downloads the csv file) For example normal response, self.assertContains(response, "Testname") self.assertNotContains(response, "NoMisstake") However how can I do the same thing for StreamingHttpResponse? I reseached and found out response.stream_content is map object. It could be the clue??? -
Django {%url 'index2:Redirect' %} have error occurred
class R_View(RedirectView): pattern_name = 'first:login' query_string = True def get(self, request, *args, **kwargs): print(request.path) return super(R_View, self).get(request, *args, **kwargs) def login(requset): return render(requset, 'login.html') urlpatterns = [ path('2/', views.login, name='first'), path('f/', views.R_View.as_view(), name='Redirect'), urlpatterns = [ path('gb1/', include(('background.urls', 'first'), namespace='index2')) When I input 127.0.0.1:8000/bg1/2 Will report an error：IndexError: pop from empty list I think the hint is that there is a problem in this line, but I don't know exactly where the problem is：{%url 'index2:Redirect' %} <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>RedirectView</title> </head> <body> <br> <a href="{%url 'index2:Redirect' %} ?k=10">Go</a> </body> </html> -
Localization of the model with a tree-like structure
I'm new to python/django development and I'm stuck. I'm making a project on Django 4.0.4. I have a tree table in a SQLite database. In the admin panel, I configured it using the DraggableMPTTAdmin class from mptt. I also want to localize the fields of this table. QUESTION: How can I combine the DraggableMPTTAdmin class with the TranslationAdmin class? my_app/models.py from django.db import models from mptt.models import MPTTModel, TreeForeignKey from django.db.models import CharField class NonStrippingCharField(CharField): """A TextField that does not strip whitespace at the beginning/end of it's value. Might be important for markup/code.""" def formfield(self, **kwargs): kwargs['strip'] = False return super(NonStrippingCharField, self).formfield(**kwargs) class CategoriesAndAreas(MPTTModel): name = NonStrippingCharField(max_length=150, unique=False) is_category = models.BooleanField() parent = TreeForeignKey('self', on_delete=models.CASCADE, null=True, blank=True, related_name='children') def __str__(self): return self.name def __unicode__(self): return self.name class MPTTMeta: order_insertion_by = ['name'] class Meta: verbose_name = "Category or area" verbose_name_plural = "Categories and areas" my_app/translations.py from modeltranslation.translator import register, TranslationOptions from .models import CategoriesAndAreas @register(CategoriesAndAreas) class CategoriesAndAreasTranslationOptions(TranslationOptions): fields = ('name',) my_app/admin.py + DraggableMPTTAdmin from django.contrib import admin from mptt.admin import DraggableMPTTAdmin from .models import CategoriesAndAreas admin.site.register(CategoriesAndAreas, DraggableMPTTAdmin, list_display=( 'tree_actions', 'indented_title', 'is_category', ), list_display_links=( 'indented_title', ), ) The table has a tree structure with the ability to drag and drop. The form … -
Can i use Chart js for long data?
In django App for visualization , for long data what i can use? Chart JS , Matplotib?.... Please recommendation exemple value for one point : 0;-0.0110227457430789;-0.0117428254241928;-0.0125132024365239;-0.0120122425942302;-0.0121398995885254;-0.0127606573714123;-0.0123882233559148;-0.0126683380476791;-0.0125534489771807;-0.0114614833910938;-0.0139670311717919;-0.0117059991385652;-0.0127469146854689 -
Django Form Update with Queryset
I have a model with field ManyToMany, like code bellow : #MODEL class Car(models.Model): description = models.CharField(max_length=100, null=True) is_available = models.BooleanField(default=True, null=True, blank=True) class Rental(models.Model): invoice_number = models.CharField(max_length=100, null=True, blank=True) car = models.ManyToManyField(Car) And forms.py code : class RentalUpdateForm(forms.ModelForm): class Meta: model = Rental fields = ['car'] def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self.helper = FormHelper() self.fields['car'].queryset=Car.objects.filter(is_available=True).all() My question is; how to display car on RentalUpdateForm with current values selected also display another car with condition is_available=True ? -
How to show first 2-3 sentences of some content in django template?
I have a post object which has content attribute which is basically a TextField. I want to show first few sentences (not words, I want it to truncate after 2-3 full stops, or something like that) as preview of post on my webpage. {{ post.content }} How do I do that in my template? -
Is there a way to load static files without the tag "{% load static %}"?
I need to load the files in site without the first line tag load static -
MEDIA_ROOT vs MEDIA_URL (Django)
I read the documentation about MEDIA_ROOT and MEDIA_URL then I could understand them a little bit but not much. MEDIA_ROOT: Absolute filesystem path to the directory that will hold user-uploaded files. MEDIA_URL: URL that handles the media served from MEDIA_ROOT, used for managing stored files. It must end in a slash if set to a non-empty value. You will need to configure these files to be served in both development and production environments. I frequently see them as shown below: # "settings.py" MEDIA_ROOT = os.path.join(BASE_DIR, 'media') MEDIA_URL = '/media/' So, what are "MEDIA_ROOT" and "MEDIA_URL" exactly? -
How can I 'trim' the unnecessary input fields from GenericView?
In my current project i am creating a little CMS so the client will be able to update his gallery on the website with new images and replace the old ones. For this I am using the generic Views to simplify the whole process. Adding a new image was no problem, but the UpdateView is providing some html elements, which I dont want my client to see: Here is the code: models.py class GalleryPicture(models.Model): title = models.CharField(max_length=200) img = WEBPField( verbose_name=_('Image'), upload_to=image_folder, null=True, blank=True, ) def __str__(self): return f'{self.title}' def get_absolute_url(self): return reverse('Galerie Überblick') class Meta: verbose_name_plural = 'GalleryPictures' I am also using a custom field for images, so all the uploaded pictures would be automatically converted into WEBP format: fields.py class WEBPFieldFile(ImageFieldFile): def save(self, name, content, save=True): content.file.seek(0) image = Image.open(content.file) image_bytes = io.BytesIO() image.save(fp=image_bytes, format="WEBP") image_content_file = ContentFile(content=image_bytes.getvalue()) super().save(name, image_content_file, save) class WEBPField(models.ImageField): attr_class = WEBPFieldFile urls.py path('content-manager/overview/gallery/<int:pk>/edit', EditGalleryImage.as_view(), name="Bild ändern") views.py class EditGalleryImage(UpdateView): model = GalleryPicture template_name = './pages/content_edit/edit_gallery_image.html' fields = ['title', 'img',] edit_gallery_image.html <div class="form-content"> <form action="" method="POST" enctype="multipart/form-data"> {% csrf_token %} {{ form }} <input class="submit-button link-button" type="submit" value="Speichern" name="save-image"> <input class="submit-button link-button" type="submit" value="Löschen" name="delete-image"> </form> </div> My first approach was to create a … -
Elastic kibana with rest api
I am trying to use rest API in the kibana dev portal. but I am not getting the correct output. here I am attaching my file -
How do I prevent a duplicate entry on refresh for django model?
I am still learning Django and recently discovered that when I refresh my page it does a duplicate entry and was wondering how I might avoid this or link the function to the button possibly. Here is my views.py function def basketballPickup(request): # displays page and Pickup model form = PickupForm(data=request.POST or None) posts = Pickup.games.all() if request.method == 'POST': form_valid = form.is_valid() if form_valid: instance = form.save(commit=False) instance.save() return redirect() content = {'form': form, 'posts': posts} and here is my HTML template {% extends "Basketball/Basketball_base.html" %} {% block content %} <form method="POST"> {% csrf_token %} {{form.as_p}} <button type="submit" name="Save_Pickup">Save Pickup Game</button> </form> <div id="pickup_table"> <table> {% for i in posts %} <tr> <th><p>Position:<p>{{ i.position}}</th> <th><p>Date:</p>{{ i.date}}</th> <th><p>Points:</p>{{ i.points}}</th> <th><p>Assists:</p>{{ i.assists}}</th> <th><p>Rebounds:</p>{{ i.rebounds}}</th> <th><p>Steals:</p>{{ i.steals}}</th> <th><p>Blocks:</p>{{ i.blocks}}</th> <th><p>Turnovers:</p>{{ i.turnovers}}</th> </tr> {% endfor %} </table> </div> {% endblock %} -
How to check if user is in many to many model django
i am trying to do permission for user where i defined my model like this class UserInstances(models.Model): user = models.OneToOneField(User,on_delete=models.CASCADE,blank=True,null=True,unique=False) instance_name = models.CharField(max_length=150) instance_size = models.PositiveIntegerField(default=0) instance_objects = models.PositiveIntegerField(default=0) instance_map = models.TextField() instance_permission = models.ManyToManyField(User,related_name='instance_permission') def __str__(self): return f"{self.instance_name} instance for {self.user}" API code user = Token.objects.get(key=request.auth) if UserInstances.objects.get(id=2).instance_permission.exists(user) :// for demonstration print("access granted") Can you tell me how to check if user exist or not in many to many field object -
i need to take convert location coordinates to distance and then filter the queryset accordingly using django-filter
Following is the model which will be filtered in search query. Models.py class RentTypeChoices(models.IntegerChoices): DAILY = 0 HOURLY = 1 MONTHLY = 2 rent_type = models.PositiveSmallIntegerField( choices=RentTypeChoices.choices) title = models.CharField(max_length=256) available_from = models.DateField(default=datetime.date.today) category = models.ForeignKey( Category, related_name="rent_posts", on_delete=models.CASCADE) price = models.DecimalField(decimal_places=2, max_digits=6) # Need to convert below location coords to distance latitude = models.CharField(max_length=120) longitude = models.CharField(max_length=120) is_available = models.BooleanField(default=True) Filters.py from django_filters import rest_framework as filters from apps.embla_services.models import RentPost class RentPostFilters(filters.FilterSet): title = filters.CharFilter(lookup_expr="icontains") is_available = filters.BooleanFilter() rent_type = filters.ChoiceFilter(choices=RentPost.RentTypeChoices.choices) category__id = filters.NumberFilter() available_from = filters.DateFromToRangeFilter() price = filters.RangeFilter() # i need to filter this model by distance also # search query would contain the min or the maximum distance and i would need to filter # accordingly class Meta: model = RentPost fields = ["title", "is_available", "rent_type", "category", "available_from", "price"] i know how to convert the location coords between 2 points by using this post Getting distance between two points based on latitude/longitude. however how to exactly use this knowledge to filter the location coordinates to get the distance is my problem. following the example search request from client side {{baseUrl}}/rent/search-posts?title=k&rent_type=0&category=14&available_from_after=2022-04-`26&available_from_before=2022-10-05&price_min=40.00&price_max=45.00&distance_max = 5&distance_min=1` everything else is being done perfectly, only problem is distance part. client need … -
django rest framework APITestCase including file fields
How can I write a test for the following code snippet? I have trouble with handling files. Extra files are created in the media folder and also the test does not work properly. Searching was useless. # models.py class Book(models.Model): title = models.CharField(max_length=255, unique=True) author = models.ForeignKey(Author, related_name='books', on_delete=models.CASCADE) description = models.TextField(verbose_name='about book', blank=True, null=True, max_length=2000) cover = models.ImageField(default='ebook_pictures/default.png') slug = models.SlugField(unique=True) pdf = models.FileField(validators=[FileExtensionValidator(['pdf'])]) genres = models.ManyToManyField(Genre, related_name='books', blank=True) # serializers.py class BookSerializer(ModelSerializer): book_detail_url = HyperlinkedIdentityField(view_name='book-detail', lookup_field='slug', read_only=True) class Meta: model = Book fields = '__all__' extra_kwargs = {'slug': {'read_only': True}, } # views.py class BookViewSet(ModelViewSet): queryset = Book.objects.all() serializer_class = BookSerializer lookup_field = 'slug' permission_classes = [IsAdminOrReadOnly] filter_backends = [filters.SearchFilter] search_fields = ['title', ] # urls.py router = DefaultRouter() router.register(r'books', BookViewSet, basename='book') # settings.py MEDIA_URL = '/media/' MEDIA_ROOT = BASE_DIR / 'media/' # tests.py class BookViewSetTestCase(APITestCase): def test_book_create(self): pass -
When including resources DRF returns my soft deleted records
I have DRF API that supports including the books of an author in an authors get request. Our API has a soft delete system where Book(2) marked as deleted. But when I do the request below Book(2) is still included in the response. I would like to have only Book(1) in the response of this request. GET http://localhost/authors/2?include=books API returns to me: { "data": { "type": "Author", "id": "2", "attributes": {...}, "relationships": { "books": { "meta": { "count": 2 }, "data": [ { "type": "Book", "id": "1" }, { "type": "Book", "id": "2" } ] } } }, "included": [ { "type": "Book", "id": "1", "attributes": {...} }, { "type": "Book", "id": "2", "attributes": {...} } ] } If someone could just point me out in the right direction I would be really helpful. There is probably a function that I need to override somewhere but I can't seem to find it. -
how to make a chat application with django?
I ask for tips on making a chat application with django, what are the most important components to play my chat application using django? if there is a good article in your opinion, please archive the link in your answer. -
Page not found (404) “/home/aboozzee/Desktop/djangogirls/check/src/meida/accounts/signup” does not exist
i made a program using django, i got all right but when i try to enter to some pages i get this error, i tried Absolutely the same code on my Notebook using git clone from my github and everything worked ok. Notice that the Error i get just in on my Pc, one week ago everything worked well until on my Pc. My Code : accounts.urls from django.contrib import admin from django.urls import path, include from django.conf.urls.static import static from django.conf import settings urlpatterns = [ path('accounts/', include('django.contrib.auth.urls')), path('accounts/', include('accounts.urls', namespace='accounts')), path('admin/', admin.site.urls), path('jobs/', include('job.urls', namespace='jobs')), ] urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT) urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT) views.py from django.shortcuts import render, redirect from .models import Job from django.core.paginator import Paginator from .forms import ApplyForm, PostForm from django.urls import reverse from django.contrib.auth.decorators import login_required def job_list(request): job_list = Job.objects.all() paginator = Paginator(job_list, 5) # Show 5 Jobs Per Page. page_number = request.GET.get('page') page_obj = paginator.get_page(page_number) context = {'jobs': page_obj} print(job_list) return render(request, 'job/job_list.html', context) def job_details(request, slug): job_details = Job.objects.get(slug=slug) if request.method == 'POST': form = ApplyForm(request.POST, request.FILES) if form. is_valid(): my_form = form.save(commit=False) my_form.job = job_details my_form.save() return redirect(reverse('jobs:job_list')) else: form = ApplyForm context = {'job': job_details, 'form': form} return …
