Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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how can i solve problem of django project?
Traceback (most recent call last): File "C:\Users\DELL1\AppData\Local\Programs\Python\Python39\lib\site-packages\django\template\utils.py", line 69, in getitem return self._engines[alias] KeyError: 'django' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\DELL1\AppData\Local\Programs\Python\Python39\lib\site-packages\markdown_deux\templatetags\markdown_deux_tags.py", line 4, in from django.utils.encoding import force_text ImportError: cannot import name 'force_text' from 'django.utils.encoding' (C:\Users\DELL1\AppData\Local\Programs\Python\Python39\lib\site-packages\django\utils\encoding.py) when I run a project of Django I face the following error please help how can I fix this? -
python if statements and validation error
Need some help with the if statements and Vaidation errors. Right now I have this function: def validate(self, validated_data): if self.partial: validated_data = self.fill_data(self.instance, validated_data) if not validated_data['brand'].sunny_account.first(): raise ValidationError('This brand does not have Sunny enabled') validated_data['calculate'] = Account.NEW return validated_data Need to add another if statement: if not validated_data['brand'].moon_account.first(): raise ValidationError('This brand does not have Moon enabled') If I add another if not statement in this function it's not going to the second one if not and raising the first Validation error. I would like that this function checking all if's and raising Validation error for the each case. -
Need help TypeError at /register/
TypeError at /register/ Got a TypeError when calling User.objects.create(). This may be because you have a writable field on the serializer class that is not a valid argument to User.objects.create(). You may need to make the field read-only, or override the RegisterSerializer.create() method to handle this correctly. Original exception was: Traceback (most recent call last): File "/Users/bishnukandel/Desktop/ISQA8380/lab4part3/venv/lib/python3.7/site-packages/rest_framework/serializers.py", line 917, in create instance = ModelClass.objects.create(**validated_data) File "/Users/bishnukandel/Desktop/ISQA8380/lab4part3/venv/lib/python3.7/site-packages/django/db/models/manager.py", line 82, in manager_method return getattr(self.get_queryset(), name)(*args, **kwargs) File "/Users/bishnukandel/Desktop/ISQA8380/lab4part3/venv/lib/python3.7/site-packages/django/db/models/query.py", line 411, in create obj = self.model(**kwargs) File "/Users/bishnukandel/Desktop/ISQA8380/lab4part3/venv/lib/python3.7/site-packages/django/db/models/base.py", line 484, in init raise TypeError("'%s' is an invalid keyword argument for this function" % kwarg) TypeError: 'password2' is an invalid keyword argument for this function view.py from rest_framework import status, generics from rest_framework.decorators import api_view from django.views.decorators.csrf import csrf_exempt from .serializers import * from rest_framework.response import Response from rest_framework.permissions import IsAuthenticated, IsAuthenticatedOrReadOnly, AllowAny @csrf_exempt @api_view(['GET', 'POST']) def customer_list(request): permission_classes = (IsAuthenticatedOrReadOnly) if request.method == 'GET': customers = Customer.objects.all() serializer = CustomerSerializer(customers, context={'request': request}, many=True) return Response({'data': serializer.data}) elif request.method == 'POST': serializer = CustomerSerializer(data=request.data) if serializer.is_valid(): serializer.save() return Response(serializer.data, status=status.HTTP_201_CREATED) return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST) @api_view(['GET', 'PUT', 'DELETE']) def getCustomer(request, pk): """ Retrieve, update or delete a customer instance. """ try: customer = Customer.objects.get(pk=pk) except Customer.DoesNotExist: … -
Send real time data from django rest framework to flutter
I'm trying to implement the idea of sending a real-time data from REST API (DRF) to flutter. The problem is when i update the the model, i need the last update sent directly to flutter app without needing to refresh the app every time i sent a new update from the server. Can i achieve this through the backend? or there is another method in the flutter itself? Thanks in advance. -
Django table does not exist
I have a app in Django called webshopCatalog with the models.py. It is all in a development server, and I have previously dropped the mysql database followed by creating a new one since I was experimenting. The problem is, when I try to create a product now I get an error saying that the table does not exists (see the full error log when I click on the product link from admin). I have tried with python manage.py makemigrations and python manage.py migrate it doesn't solve the problem. I also tried to comment out the model followed by making a python manage.py makemigrations and python manage.py migrate --fake and hereafter uncomment the model followed by repeating the steps without --fake, still it doesn't solve the problem. from django.db import models from django.db.models.fields.related import create_many_to_many_intermediary_model from django.urls import reverse class Product(models.Model): name = models.CharField(max_length = 50, unique=True) description = models.TextField() allergic_note = models.CharField(max_length = 255, blank = True, null=True) quantity = models.IntegerField(null = True, blank = True) #Used for campaign products to show how many items there is left price = models.DecimalField(max_digits=9, decimal_places=0, default=0.00) is_active = models.BooleanField(default = True) is_deliverable = models.BooleanField(default = True) image_path = models.ImageField(upload_to = 'productImages') meta_keywords = … -
Django/Postgres primary key sequence
I have a Django application deployed on Heroku (free dyno) and I use Heroku Postgres as my database (Hobby Tier). I been noticing that sometimes there are some gaps/jumps on the primary key numeration. For example, there was a jump from 162 to 195, from 237 to 270... But objects are not deleted in between this gaps. I can't really understand why this is happening. Has anyone experienced something similar? What do you think? Is this problem related to Django, Postgres or Heroku? -
django | display the name value from select option with ajax (jquery) not the id
this is the ajax code $('.addtasksubmit').click(function(e) { e.preventDefault(); $.ajax({ url: 'addtodo', type: "POST", data: { title: $('#task-title').val(), category: $('#catsel option:selected').val(), 'csrfmiddlewaretoken':$('input[name=csrfmiddlewaretoken]').val() }, success: function(response) { console.log(response) $('.todos-box').append(` <a href="#" class="category-link">${response.category}</a> `) $("#addtodo").trigger('reset'); $("#exampleModal").modal('hide'); } }) }) So ${response.category} gives me the id of the category but i need the category name to be viewed and this is views.py response = { 'title': request.POST['title'], 'category' : request.POST['category'], } todo = Todo.objects.create(title=response['title'], category=Category.objects.get(id=response['category']), user=request.user) todo.save() is there any way to view the category name with ajax not the id? or how can i get the name of the category with its id. sorry for my bad english.. -
Auto update model value based on another value in this model django
I have a model called Products. This model has values like this class Product(models.Model): title = models.CharField(max_length=70, null=True, blank=True) producent = models.CharField(max_length=40, null=True, blank=True) stock = models.PositiveIntegerField(default=0, null=True, blank=True) display = models.BooleanField(null=True, blank=True, default=True) How can I change display to be False if stock is equal to 0 automatically, so when client buys last product in store display value will change from True to False and Product.objects.filter(display=True) will result in products that I want to show or are in stock. I know that I can simply chain .filter() but I wonder if I can do in an elegant way -
django can't find tinymce
I am using django 4.0.2 and django-tinymce 3.4.0 python 3.8 I am trying use tinymce as text editor by adding this line to main/urls.py urlpatterns = [ ..., path(r'^tinymce/', include('tinymce.urls')), ...., ] but is says no module named tinymce i also tried import tinymce installed after activating in virtual env using pip install django-tinymce. enter codxception in thread django-main-thread: Traceback (most recent call last): File "/usr/lib/python3.8/threading.py", line 932, in _bootstrap_inner self.run() File "/usr/lib/python3.8/threading.py", line 870, in run self._target(*self._args, **self._kwargs) File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/utils/autoreload.py", line 64, in wrapper fn(*args, **kwargs) File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/core/management/commands/runserver.py", line 124, in inner_run self.check(display_num_errors=True) File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/core/management/base.py", line 438, in check all_issues = checks.run_checks( File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/core/checks/registry.py", line 77, in run_checks new_errors = check(app_configs=app_configs, databases=databases) File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/core/checks/urls.py", line 13, in check_url_config return check_resolver(resolver) File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/core/checks/urls.py", line 23, in check_resolver return check_method() File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/urls/resolvers.py", line 448, in check for pattern in self.url_patterns: File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/utils/functional.py", line 48, in __get__ res = instance.__dict__[self.name] = self.func(instance) File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/urls/resolvers.py", line 634, in url_patterns patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/utils/functional.py", line 48, in __get__ res = instance.__dict__[self.name] = self.func(instance) File "/home/ubuntu/Desktop/guftaho/genv/lib/python3.8/site-packages/django/urls/resolvers.py", line 627, in urlconf_module return import_module(self.urlconf_name) File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1014, in _gcd_import File "<frozen importlib._bootstrap>", … -
My modelformset saves only the first generated form and doesn't add the rest
I have up to 4-5 forms, the formsets come in last, I used to javascript to generate more forms at the click of a button. After submission and validation, only the first form data gets saved to the database, the others don't, how can i fix this please? This is my views.py file @login_required(login_url='login') def addItem(request, id) -> render: res_name = Restro.objects.get(user=request.user) menuobj = Main.objects.get(restro_name=res_name) sub_form = createSubCartForm(request.POST) itemformset = modelformset_factory(Item, form=addItemForm, extra=0, fields=['itname', 'quantity']) itemform = itemformset(request.POST or None) vsub_form = createVSubCartForm(request.POST) vitemformset = modelformset_factory(v_Item, form=addVItemForm, extra=0, fields=['vname']) vitemform = vitemformset(request.POST or None) vformset = modelformset_factory(ItemVariation, form=addItemVariationForm, extra=0, fields=['iname', 'varprice', 'quantity']) vform = vformset(request.POST or None) if 'nonala' in request.POST: if request.POST.get('cate1') == 'Non-Ala Carte': if all([sub_form.is_valid(), itemform.is_valid()]): global pare pare = sub_form.save(commit=False) pare.main_category = Main.objects.get(restro_name=res_name) pare.save() for form in itemform: child = form.save(commit=False) child.user = request.user child.sub_category = Sub.objects.get(id=pare.id) child.save() return redirect('cust') elif 'ala' in request.POST: if request.POST.get('cate2') == 'Ala Carte': print(request.POST) context = { 'm_name': menuobj.main_category, 'sub_form': sub_form, 'itemform': itemform, 'vsub_form': vsub_form, 'vitemform': vitemform, 'vform': vform } return render(request, 'item_form.html', context) This is my templates file <form id="non-alacart" action="" method="post" class="hidden"> {% csrf_token %} <h3 class="text-center" style="font-weight: bold;">Create Sub Cartegory for <span id="mn">{{ m_name }}</span> Category</h3> <input … -
Django - Update button checkbox to all users in realtime
I have a checkbox like this in django app, this is updated checking actual value in database when page is loaded, when user change that is updated again. This is a global switch where all users can see, my question is: how can i update this to all users if one change that? <input type="checkbox" class="form-check-input" id="customSwitch1" checked> I test update that every 5 seconds using sockets and this work. But i don't know if exist other method to do that directly with django. Any suggestion? -
can I go to a new section after submitting a form in Django
My template is coposed by section and div tags, and I want to know is there a way make me go to a new section <section> </section> on the same template-page only when my form is submitted , if yes, how i can force that on html template what i should put as a condition before the section tag!!. -
User attributes in settings.py for Okta authentication
I am currently using the following attributes in my settings.py in Django for user authentication: 'ATTRIBUTES_MAP': { 'email': 'email', 'username': 'UserName', 'first_name': 'FirstName', 'last_name': 'LastName' } Now, I want to add an attribute for the group received for the users, what format should I add for the group attribute here? -
Not being able to send emails on a django backend from a React frontend
On a form submission from my React frontend, my django backend sends emails to multiple user. I am not using any sort of backend queue for the job scheduling (for now), so the request should take little time to complete. Its important to note that I am using axios interceptors for refreshing tokens on a 401 response. Now, the thing is, everytime someone submits the form and there is more than 1 user to send an email to, I get a 401 response to my axios interceptor and it fails. But when there is only 1 user they send an email to, it works fine. I understand this might be hard to visualize without code context, but would really appreciate if someone has any idea as to why this might happen? -
Query of coordinate data in Folium (ClickForMarker)
everyone, I am currently creating a small project with python / django. I would like to develop a tool in which the user can mark a point on a map - and then send it off using the "Remember address" button. This data should then be stored in the database. I use Folium / Leaflet for this. With the function "ClickForMarker" I can already mark points on the map. Now to my question :) Currently, a new marker is placed with each click - however, I would like that if a user clicks several times, the marker is always updated. How can I read out the data (coordinates). Or do I have a "Send data" button below the map - can I process the post request with the data? I don't think I have to mention that I'm still a beginner - with Javascript, for example, I only know very little. I'm happy about any help :) -
Django generic views with form_class and model attributes
In a note about generic views in Django's docs, it says that even if form_class is set, the model attribute should be set too. But I've seen many examples (some on Django docs itself) that only the form_class was specified. Also, inside the ModelFormMixin class (generic views inherit from it) you can find this: if self.form_class: return self.form_class else: if self.model is not None: # If a model has been explicitly provided, use it model = self.model It's in the 'else' that it would look for the model. So for views that inherit from generic views like FormView or CreateView, is it necessary that I set the model attribute if I've set the form_class? If not, then what is that note talking about? -
Django admin LogEntry error with remote authentication
I'm using Central Authentication System (CAS) with my Django services. User is authenticated by remote server and not Django auth itself. I have also changed Authentication Backend as follows : class CASBackend(BaseBackend): def authenticate(self, request, username=None, password=None): payload = get_cas_payload(request) user, _ = User.objects.get_or_create(username=payload['username']) def get_user(self, user_id): try: return User.objects.get(pk=user_id) except User.DoesNotExist: return None When creating a new object in admin, I got the following error : django.db.utils.IntegrityError: null value in column "user_id" violates not-null constraint Which is related to LogEntry. Is there anything I have missed? -
How to Serialize ManyToManyfield in django rest framework
Sorry to ask a repetitive question which is already have been asked a lot of times. I have seen alot of answers on this topic. But I can't reproduce the solution of my problem. Basically I want to serialize a field name partner which is in quote model Quote(models.Model): #... partner = models.ManyToManyField( Partner, blank=True, related_name='quote_partners') and this is the Partner models in the accounts app class Partner(models.Model): id = models.UUIDField(primary_key=True, unique=True, default=uuid.uuid4, editable=False) name = models.CharField(max_length=100, blank=True, null=True) group = models.OneToOneField( Group, on_delete=models.DO_NOTHING, blank=True, null=True) def __str__(self): return self.name And this is how the serializer looks class QuoteListSerializer(serializers.Serializer): """ For the List views """ #... id = serializers.UUIDField(read_only=True) partner = serializers.CharField(read_only=True) I'm getting all other fields properly but not the partner field. This is the end results looks : { "id": "cbf64980-1637-4d0d-ad1f-4eb6421df5a1", "partner": "accounts.Partner.None", }, However I can see the partners field is filled for this specific entry in the admin page but not showing in the serialized data. In the Partner Model In the Quote [][2 Anybody knows why this is happening and how to fix this issue. -
DJANGO IF STATEMENT FOR CONTEXT USAGE IN TEMPLATE
What i am trying to achieve: i am getting data from an API, i want to display that data in my template only if the conditions are met. What i tried #1: i added a boolean in my model that is linked to the API called "accessconfirmed" and then in my views i added a if statement saying if access is confirmed then display this context and if not then display this other context. i dont get an error but my data from the API is no longer displaying, i get nothing. here is the code in the views.py VIEWS: def projectdetailscoins(request, pk): coin = Coin.objects.get(id=pk) notifications = Notification.objects.all() accessconfirmed = Coin.is_api_access api_coin_number_variable = coin.api_coin_number url = 'XXX' parameters = { 'slug': coin.api_slug, 'convert': 'USD', } headers = { 'Accepts': 'application/json', 'X-CMC_PRO_API_KEY': 'XXX' } session = Session() session.headers.update(headers) response = session.get(url, params=parameters) api_price = response.json() if accessconfirmed == True: context = {'coin':coin, 'notifications':notifications, 'gimmeprice':api_price['data'][api_coin_number_variable]['quote']['USD']['price'], 'gimme24h':api_price['data'][api_coin_number_variable]['quote']['USD']['percent_change_24h'], 'accessconfirmed':accessconfirmed, } else: context = {'coin':coin, 'notifications':notifications,} return render(request, 'blog/project_details_coin.html', context) What i tried #2: i also tried changing the if statement from if accessconfirmed == True: to if accessconfirmed: the data displays correctly on my template if i do that, but when i go … -
How to get provider of user in django which registered with django allauth
I am going to get provider of user in django I tried to loop through queryset user.socialaccount_set but got only username of user. Is there are any solution to get provider? -
Using Filter or Q in Aggregation
class Streamer(models.Model): name = models.CharField(max_length=50, null=True) is_working_with_us = models.BooleanField(default=False) class Account(models.Model): streamer = models.ForeignKey(Streamer, on_delete=models.CASCADE) salary= models.Decimalfield(decimal_places=2, max_digits=7) cost= models.Decimalfield(decimal_places=2, max_digits=7) Can I make two different aggregations that depend on attributes in a single query? like below. streamer_salary_stats = Streamer.objects.filter(is_working_with_us=True).aggregate( expensive_streamers_sum=Sum(Q(cost__gt=10000.0),'salary'), # with Q or cheap_streamers_sum=Sum(cost__lte=10000.0,'salary'), # without Q ) I know it can be done this way but want to achieve this in a single query. expensive_streamers_sum = Streamer.objects.filter( is_working_with_us=True, cost__gt=10000.0 ).aggregate(s=Sum('salary'))['s'] cheap_streamers_sum = Streamer.objects.filter( is_working_with_us=True, cost__lte=10000.0 ).aggregate(s=Sum('salary'))['s'] -
Error on Flask request api builtins:ValueError: dictionary update sequence element #0 has length 1; 2 is required
Error when make a request to an Flask Api, this error occurs just sometimes, and the structure of the body it's right Stack trace generated by New Relic **builtins:ValueError: dictionary update sequence element #0 has length 1; 2 is required** File "/venv/lib/python3.9/site-packages/flask/app.py", line 1936, in dispatch_request File "/venv/lib/python3.9/site-packages/newrelic/hooks/framework_flask.py", line 60, in _nr_wrapper_handler_ File "/venv/lib/python3.9/site-packages/maas_security/keycloak.py", line 203, in wrapper File "/venv/lib/python3.9/site-packages/webargs/core.py", line 452, in wrapper File "/venv/lib/python3.9/site-packages/flask_smorest/arguments.py", line 77, in wrapper File "/venv/lib/python3.9/site-packages/flask_smorest/response.py", line 90, in wrapper File "/venv/lib/python3.9/site-packages/marshmallow/schema.py", line 559, in dump File "/venv/lib/python3.9/site-packages/marshmallow/schema.py", line 523, in _serialize File "/venv/lib/python3.9/site-packages/marshmallow/fields.py", line 320, in serialize File "/venv/lib/python3.9/site-packages/marshmallow/fields.py", line 1508, in _serialize -
Django - UserEditView is missing a QuerySet?
trying to create an edit profile for users and i keep getting this error what should i add or change ? is my models right for UserEditView this is my views.py from django.urls import reverse_lazy from django.views import generic from django.contrib.auth.forms import UserCreationForm , UserChangeForm class UserEditView(generic.UpdateView): models = UserChangeForm form_class = UserChangeForm template_name = 'vendor/edit_profile.html' seccess_url = reverse_lazy('vendor_admin') def get_object(self): return self.request.user urls.py from django.urls import path from .import views from .views import UserEditView from django.contrib import admin from django.contrib.auth import views as auth_views urlpattern =[ path('signup/', views.become_vendor, name='become_vendor'), path('profile/', views.vendor_admin, name='vendor_admin'), path("logout/", auth_views.LogoutView.as_view(), name="logout"), path('login/', auth_views.LoginView.as_view(template_name='vendor/login.html'), name='login'), path('edit_profile/', UserEditView.as_view(template_name='vendor/edit_profile.html'), name='edit_profile'), ] edit_profile.html (where the error pops up) {% extends "base.html"%} {% load static %} {% block content %} <title>title</title> <div class="section pt-9 pb-9"> <div class="container"> <div class="row"> <div class="col-md-12"> <div class="section-title"> <div class="wrap-title"> <h3 class="title"> <span class="first-word"></span> </h3> <br> <form method="post" > {% csrf_token %} <table> {{ form.as_p }} </table> <button class='button'>Update</button> </form> </div> <hr> {% endblock content %} -
Django URLs not working properly in template
I am making social network website where user can post and like the post. On one of my templates, image of heart (which represents if post is liked or not) is not loading because of incorrect path: this is the incorrect one: other_profile/static/network/nolike.png. It should be: static/network/nolike.png. other_profile is the name and path of my template. Same happens in case of other API fetch calls on my website. URL should not begin with other_profile. And this happens only on other_profile HTML page. The code: urls.py from django.urls import path from . import views urlpatterns = [ path("", views.index, name="index"), path("profile", views.profile, name="profile"), path("login", views.login_view, name="login"), path("logout", views.logout_view, name="logout"), path("register", views.register, name="register"), path("Post/<str:post_id>", views.likes, name="likes"), path("follows/<str:user_id>", views.follows, name="follows"), path("following", views.following, name="following"), path("other_profile/<str:user_id>", views.other_profile, name="other_profile") ] views.py snippet import json from urllib.request import Request from django.contrib.auth import authenticate, login, logout from django.db import IntegrityError from django.http import HttpResponse, HttpResponseRedirect from django.shortcuts import redirect, render from django.urls import reverse from .forms import NewPostForm, likeForm, followForm from .models import User, Post, Likes, Follows from django.contrib.auth.decorators import login_required from django.http import JsonResponse from django.core.exceptions import ObjectDoesNotExist from datetime import datetime def other_profile(request, user_id): followform = followForm(request.POST or None) if request.method == "POST": try: Follows.objects.filter(following__in=[user_id]).get(following=request.user).delete() except … -
Django Rest Framework AuthToken being created without a key
I have a data migration indended to create a couple accounts in django, along with a token for authentication. class Migration(migrations.Migration): initial = True dependencies = [ migrations.swappable_dependency(settings.AUTH_USER_MODEL), ('api', '0001_initial'), ('authtoken', '0001_initial'), ] operations = [ migrations.RunPython(api.models.user.create_service_accounts, api.models.user.delete_service_accounts), ] And the create method: def create_service_accounts(apps, schema_editor): User = apps.get_model('api', 'User') Token = apps.get_model('authtoken', 'Token') db_alias = schema_editor.connection.alias new_user = User.objects.using(db_alias).create(username='sa', is_superuser=True, is_staff=True) token = Token.objects.using(db_alias).create(user=new_user) After this migration is run, a token is created. But the token does not have a key. Therefore it is useless. Why is it getting created without a key? If I manually create a token it works fine, but through this migration it provides a blank key.
