Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Custom validation error message in django rest framework ImageField
I'm trying to create my custom validation error messages in django rest framework. I have a productSerializer like the below code: class ProductSerializer(serializers.ModelSerializer): # validation name = serializers.CharField(error_messages={'blank': 'Please fillout the product name!'}) price = serializers.FloatField(error_messages={'blank': 'Please fillout the product price!'}) slug = serializers.SlugField(error_messages={'blank': 'Please fillout the product slug!'}) size = serializers.CharField(error_messages={'blank': 'Please fillout the product size!'}) description = serializers.CharField(error_messages={'blank': 'Please fillout the description!'}) image = serializers.ImageField(error_messages={'blank': 'Please upload a photo image!'}) # validation category = serializers.StringRelatedField(read_only=False) productType = serializers.StringRelatedField() user = serializers.StringRelatedField() class Meta: model = Product fields = "__all__" and my views.py be like: class ProductsList(APIView): authentication_classes = [TokenAuthentication] permission_classes = [IsAuthenticated] def post(self, request): serializer = ProductSerializer(data=request.data) category = Category.objects.get(name=request.data['category']) productType = ProductType.objects.get(name=request.data['productType']) user = User.objects.get(username= request.user.username) if serializer.is_valid(): serializer.save(category=category, productType=productType, user=user) return Response("SUCCESS!!!!!!", status=200) else: return Response(serializer.errors, status=400) The problem: I want the image field error message to be what I've written, when it's blank. But I always face the message "No file was submitted." Question: How can I validate the image field being blank? -
How to change success url?
Url File. Here a red mark where I want to put my success url. what should change in my code ? views.py -
Django ipware environment variable for proxy_trusted_ips
I want to make an environment variable for a list of IP addresses for django-ipware's proxy_trusted_ips. I am testing on localhost before going to production. Whatever IP address I put inside of proxy_trusted_ips, it returns None plus the traceback below. Example change get_client_ip(request, proxy_trusted_ips=['177.139.233.133']) to get_client_ip(request, proxy_trusted_ips=settings.PROXY_TRUSTED_IPS) JSON file of environment variables: "PROXY_TRUSTED_IPS":"127.0.0.1,127.0.0.1", settings.py: PROXY_TRUSTED_IPS = config['PROXY_TRUSTED_IPS'].strip('"').split(',') views.py: ip, is_routable = get_client_ip(request, proxy_trusted_ips=settings.PROXY_TRUSTED_IPS) print(ip) if (ContactSpamModel.objects.filter(email=contact_email).exists() or ContactSpamModel.objects.filter(ip_address=ip).exists()) and ContactSpamModel.objects.filter(inserted__gt=timezone.now() - timezone.timedelta(seconds=int(settings.SPAM_TIMEOUT_SECONDS))): current_time = datetime.datetime.now() diff = current_time.timestamp() - time.mktime(datetime.datetime.fromisoformat(ContactSpamModel.objects.filter(ip_address=ip).values(result=Cast('inserted', TextField())).first()['result']).timetuple()) seconds_diff = divmod(diff, int(settings.SPAM_TIMEOUT_SECONDS)) x,seconds_remaining = divmod(diff, int(settings.SPAM_TIMEOUT_SECONDS)) remaining = (int(settings.SPAM_TIMEOUT_SECONDS) + 60 - seconds_remaining) // 60 if seconds_diff[0] < 1: if str(int(remaining)) == '1': messages.info(request, "We received a contact message from you recently. Please wait " + str(int(remaining)) + " minute and try again.") return HttpResponseRedirect(request.path_info) else: messages.info(request, "We received a contact message from you recently. Please wait " + str(int(remaining)) + " minutes and try again.") return HttpResponseRedirect(request.path_info) else: ContactSpamModel.objects.filter(inserted__lt=timezone.now() - timezone.timedelta(minutes=1)).delete() ContactSpamModel(email=contact_email,ip_address=ip).save() Models.py: class ContactSpamModel(models.Model): email = models.EmailField() inserted = models.DateTimeField(auto_now_add=True) ip_address = models. GenericIPAddressField() Traceback: Traceback (most recent call last): File "/home/name/.local/share/virtualenvs/project_name/lib/python3.8/site-packages/django/db/backends/utils.py", line 84, in _execute return self.cursor.execute(sql, params) File "/home/name/.local/share/virtualenvs/project_name/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 423, in execute return Database.Cursor.execute(self, query, params) sqlite3.IntegrityError: NOT NULL … -
I am getting an error while using Django ManyToManyField
in view.py def watchlist(request, item_id): list=get_object_or_404(Listing, id=item_id) wc=WatchCount(user=request.user) if WatchCount.objects.filter(user=request.user, listing=list).exists(): wc.listing.remove(list) else: wc.listing.add(list) return HttpResponseRedirect(wc.get_absolute_url()) in models.py class WatchCount(models.Model): user = models.ForeignKey(User, on_delete=models.CASCADE, null=True) listing = models.ManyToManyField(Listing, blank=True, related_name="watchcount") def __str__(self): return f"{self.user.username}" def count(self): return self.listing.count() def get_absolute_url(self): return reverse('list', kwargs={'item_id': self.pk}) ERROR: "<WatchCount: jeelen>" needs to have a value for field "id" before this many-to-many relationship can be used. -
How to set the time out in Django Rest Framework?
How to set the time out in Django Rest Framework. is it from the settings file. -
Token based authentication using Authentication header giving 403 forbidden error
I have the following code in my react app: I am sending an update request to rest backed which requires a user to be authenticated to perform PUT/POST/DELETE requests. const update = (e) => { e.preventDefault() const formData = new FormData(form.current); console.log('Token ' + localStorage.getItem("token")) // valid token const requestOptions = { method: 'PUT', headers : { // 'Authorization': 'Basic ' + btoa('user:password') // basic authentication works "Authorization": 'Token ' + localStorage.getItem("token"), }, body: formData }; fetch(url, requestOptions) .then(async response => { const data = await response.json(); if(!response.ok){ const error = (data && data.message ) || response.status; return Promise.reject(error) } alert('member updated') history.push("/members") }) .catch(error => console.error('Some error ', error)) } Unfortunately, I'm getting these in console logs: PUT http://localhost:8000/uskindia/56/ 403 (Forbidden) Some error 403 And this in backed logs: Forbidden: /uskindia/56/ [... *:*:*] "PUT /uskindia/56/ HTTP/1.1" 403 58 ``` Trying to solve this for the last 24 hours but not getting it right. -
How to add two more Columns in the USER model in djan
How to add these columns(dob, and one more) in User Model, and if we want to add one or more field like a phone number so can id add to the User model or not ?? views.py def register(request): if request.method == "POST": # Get the post parameters username = request.POST['username'] email = request.POST['email'] fname = request.POST['fname'] lname = request.POST['lname'] dob = request.POST['dob'] pass1 = request.POST['pass1'] pass2 = request.POST['pass2'] # check for errorneous input if User.objects.filter(username=username).exists(): messages.error(request, 'This Aadhaar is Already Used') return redirect('home') if User.objects.filter(email=email).exists(): messages.error(request, 'This Email is already Used') return redirect('home') if (pass1 != pass2): messages.error(request, " Passwords do not match") return redirect('home') # Create the user myuser = User.objects.create_user(username, email, pass1) myuser.first_name = fname myuser.last_name = lname myuser.dob = dob myuser.save() messages.success(request, "You are successfully registered") return redirect('home') else: return HttpResponse("404 - Not found") -
How to create a view for a model
How do I build a function for this model to display team.name for members in my team on page and list my teams.members for members in my team ? class Team(models.Model): name = models.CharField(max_length=255) members = models.ManyToManyField(User, related_name='teams') created_by = models.ForeignKey(User, related_name='created_teams', on_delete=models.CASCADE) created_at = models.DateTimeField(auto_now_add=True) plan = models.ForeignKey(Plan, related_name='teams', on_delete=models.SET_NULL, null=True, blank=True) -
how to use OpenCV lib on a python host cpanel?
I have django project that I need to use OpenCV lib in it. I have no error or problem as long as I run the project on a localhost on my computer. However, when I push my project on a real host on internet (The host uses Linux as OS) I face some errors that I cannot solve them. at the first level this error shows up when I import cv2 (I have already installed numpy lib): OpenBLAS blas_thread_init: pthread_create failed for thread 30 of 46: Resource temporarily unavailable OpenBLAS blas_thread_init: RLIMIT_NPROC 35 current, 35 max OpenBLAS blas_thread_init: pthread_create failed for thread 31 of 46: Resource temporarily unavailable OpenBLAS blas_thread_init: RLIMIT_NPROC 35 current, 35 max OpenBLAS blas_thread_init: pthread_create failed for thread 32 of 46: Resource temporarily unavailable OpenBLAS blas_thread_init: RLIMIT_NPROC 35 current, 35 max OpenBLAS blas_thread_init: pthread_create failed for thread 33 of 46: Resource temporarily unavailable OpenBLAS blas_thread_init: RLIMIT_NPROC 35 current, 35 max OpenBLAS blas_thread_init: pthread_create failed for thread 34 of 46: Resource temporarily unavailable OpenBLAS blas_thread_init: RLIMIT_NPROC 35 current, 35 max OpenBLAS blas_thread_init: pthread_create failed for thread 35 of 46: Resource temporarily unavailable OpenBLAS blas_thread_init: RLIMIT_NPROC 35 current, 35 max OpenBLAS blas_thread_init: pthread_create failed for thread 36 of 46: … -
Why does this hacky way of specifying installed_apps in Django work, but not the proper way?
My file structure is like this: and the INSTALLED_APPS in settings.py looks like this: INSTALLED_APPS = [ "django.contrib.admin", "django.contrib.auth", "django.contrib.contenttypes", "django.contrib.sessions", "django.contrib.messages", "django.contrib.staticfiles", "nstv_fe", "django_tables2", ] With this setup, running a script that imports a model from nstv_fe (from nstv_fe.nstv_fe.models import Show), I get the following error: # If "not ready" is due to unconfigured settings, accessing # INSTALLED_APPS raises a more helpful ImproperlyConfigured # exception. settings.INSTALLED_APPS > raise AppRegistryNotReady("Apps aren't loaded yet.") E django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet. ../../venv/lib/python3.8/site-packages/django/apps/registry.py:135: AppRegistryNotReady Most of the stackoverflow questions about this are answered by setting the DJANGO_SETTINGS_MODULE environment variable to the settings file - so I tried setting it to nstv_fe.nstv_fe.settings and nstv_fe.settings, but neither worked. What I find odd is that if I go into django/apps/registry.py and manually create a list: installed_apps = ['nstv_fe'] in the Apps class, it'll run the test for the script that imports the model no problem. But if I don't manually add that line, it'll give me the AppRegistryNotReady error. This leads me to believe that nstv_fe isn't getting picked up properly in the installed apps somehow, but I'm not sure where I'm going wrong because I have it in the INSTALLED_APPS list in settings.py. How can … -
How to give an object multiple ratings (on different aspects) with django-star-ratings app?
The django-star-ratings is a nice package that can add ratings to any Django model with just a few lines of code in an existing project. However, the default app only supports 1 rating on an object by a specific user. Considering giving multiple ratings to an object in various aspects, such as 1. Ease of use; 2. Value; 3. Quality etc., do anyone know what's the easiest way to accomplish this? -
Usar múltiplas database no DJANGO
Bem, comecei estudar django esse ano e veio uma dúvida e não consegui arrumar. O problema é que tenho várias database no mysql e algumas possuem relações entre elas. Quando quero mapear uma única database, por exemplo: DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'DatabaseName1', 'USER': 'DatabaseUserName', 'PASSWORD': 'DatabaseUserpassword', 'HOST': 'localhost', 'PORT': '5432', }, é facinho, uso python manage.py inspectdb tab1 tab2 > my_app/models.py e vai. Ai tenho outra database que faz relação com essa DatabaseName1, mas já deu ruim :( kk Já tentei: DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'DatabaseName1', 'USER': 'DatabaseUserName', 'PASSWORD': 'DatabaseUserpassword', 'HOST': 'localhost', 'PORT': '5432', }, 'segunda': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'DatabaseName2', 'USER': 'DatabaseUserName', 'PASSWORD': 'DatabaseUserpassword', 'HOST': 'localhost', 'PORT': '5432', } } O user, password, host e port são os mesmo, isso é possível? -
Wagtail upgrade from 2.12 to 2.13 -- migrations not applying
I have a Wagtail project using the following: Wagtail 2.12.4 Django 3.1.11 Python 3.8.5 Postgres 12.6 I tried to upgrade Wagtail to version 2.13. When I run python manage.py migrate after the upgrade, the migrations appear to complete successfully, and they show as having completed when I run python manage.py showmigrations. However, the database tables targeted by the migrations remain unchanged, and the migrations do not appear in the django_migrations table of the database. This problem persists even if I run the specific migration with python manage.py migrate wagtailusers 0010. I have looked online for similar issues, but I haven't been able to find anything. Any advice on how I can find what is causing this issue to happen? -
User account activation url not found in Django
I'm trying to activate a user account in django but I'm getting 404 error, and the error is due to the fact that django is unable to get the activation url. urls.py urlpatterns = [ path('activate/<slug:uidb64>/<slug:token>)/', views.account_activate, name='activate'), ] views.py def account_activate(request, uidb64, token): try: uid = force_text(urlsafe_base64_decode(uidb64)) user = UserBase.objects.get(pk=uid) except(TypeError, ValueError, OverflowError, user.DoesNotExist): user = None if user is not None and account_activation_token.check_token(user, token): user.is_active = True user.save() login(request, user) return redirect('account:dashboard') else: return render(request, 'account/registration/activation_invalid.html') template {% autoescape off %} Great {{ user.user_name }}! Please click on the link below to activate your account http://{{ domain }}{% url 'account:activate' uidb64=uid token=token %} {% endautoescape %} I have spent a couple of hours trying to figure out where my mistake is but I haven't been able. Please I want some insight on this. -
Stripe integration with Django rest and Angular/Cli
I want to create a stripe payment integration using Django Rest Framework as backend and Angular/Cli as frontend. And also I want to confirm the payment using stripe webhooks. I could not able to find Angular documentation just for the only frontend. And also the Stripe docs are generally has written for flask and not for the rest framework. Any help will be appreciated. Thank you in advance. -
Read More js in django for loop
I tried to apply this post to integrate read more/read less JS into a django template. I want to limit my post app. 200 characters and providing the user the option to Read More. This script seems to work fine... not so much in my case. It displays the Read More option but once clicked no event it triggered. That is, it doesn't open the entire text. It displays a colored test 'Read More' but noting else happens. Here's the answer provided in that post: {% for post in posts %} {% if post.content|length > 150 %} <p class="half-content" id="half-{{post.id}}">{{ post.content|truncatechars:150 }}<a data-id="{{post.id}}" href="javascript:void();" class="show-hide-btn">read more</a></p> <p class="full-content" id="full-{{post.id}}" style="display: none;">{{ post.content }}</p></div> {% else %} <p>{{ post.content }}</p> {% endif %} {% endfor %} <script> $(document).ready(function(){ $(".show-hide-btn").click(function(){ var id = $(this).data("id"); $("#half-"+id).hide(); Any input is highly appreciated. -
Django convert Date of Birth model field to Age
I have a Django class to convert the date of birth (dob) field in my model to age and annotate the result to a queryset. class CalculateAge(Case): def __init__(self, model, field, condition=None, then=None, **lookups): today = date.today() obj = model.objects.first() field_object = model._meta.get_field(field) field_value = field_object.value_from_object(obj) bornyear = field_value.year bornmonth = field_value.month bornday = field_value.day # something is wrong with the next two lines age = [today.year - bornyear - ((today.month, today.day) < (bornmonth, bornday))] return super().__init__(*age, output_field=IntegerField()) however when I try to pass the result to my queryset queryset = Person.objects.all().annotate(age=CalculateAge(Person, 'dob') I get the error Positional arguments must all be When objects. How can I get this to work? -
Getting ERROR... {readyState: 4, getResponseHeader: ƒ, getAllResponseHeaders: ƒ, setRequestHeader: ƒ, overrideMimeType: ƒ, …} django
I have created a ajax function to accept the request for my project but when i am trying to accept it is giving me 200 but does nothing and goes to error in my ajax. here is my ajax function acceptMatchRequest(match_request_id, uiUpdateFunction){ var url = "{% url 'accept-match-request' match_request_id=53252623623632623 %}".replace("53252623623632623", match_request_id) $.ajax({ type: 'GET', dataType: "json", url: url, timeout: 5000, success: function(data) { console.log("SUCCESS", data) if(data['response'] == "Match request accepted."){ // ui is updated } else if(data['response'] != null){ alert(data['response']) } }, error: function(data) { console.error("ERROR...", data) // console.log(data) alert("Something went wrong.") }, complete: function(data){ uiUpdateFunction() console.log(data) } }); } Here is my JS function onMatchRequestAccepted(){ location.reload(); } function triggerAcceptMatchRequest(match_request_id){ acceptMatchRequest(match_request_id, onMatchRequestAccepted) } My views.py def accept_match_request(request, *args, **kwargs): user = request.user print(user) payload = {} if request.method == "GET" and user.is_authenticated: match_request_id = kwargs.get("match_request_id") if match_request_id: match_request = MatchRequest.objects.get(id=match_request_id) # confirm that is the correct request if match_request.receiver == user: print(match_request) if match_request: # found the request. Now accept it match_request.accept() payload['response'] = "Match request accepted." else: payload['response'] = "Something went wrong." else: payload['response'] = "That is not your request to accept." else: payload['response'] = "Unable to accept that Match request." else: # should never happen payload['response'] = "You … -
Display Item requested by user in template (django)
I have a simple borrowing items request app, which the user would log in and fill out a form with the following: Item Location Start date End date This is stored in a database Record stored in database Then I have a return page where the user will confirm that has returned the item by just clicking return. I want to show the only the related items with the user logged in to the page, (so just the request the user made: the current item and the previous ones.) I have the following model for the Request Table: class Request(models.Model): shootkit_id = models.ForeignKey(Shootkit, on_delete=models.CASCADE) username = models.ForeignKey(User, on_delete=models.CASCADE, null=True, blank=True) request_start_date = models.DateField('Start Date') request_end_date = models.DateField('End Date') location = models.ForeignKey(Location, on_delete=models.CASCADE) The following def in views: def return_form(request): form = shootkitForm request_db = Request.objects.all return render(request, 'return_form.html', {'form':form, 'request_db':request_db}) And the following on the template return: {% for shootkit in request_db %} <div class="callout-info">Hi {{ user }}, you currently have the {{ shootkit.shootkit_id }}</div> {% endfor %} Obviously this is showing every single record on the table (if I ahve more that one record). I would like to only display the item (in this case a shootkit #5) linked … -
How to get clicked item in view
I am relatively beginner in django. In one of my template, I am creating list of items stored in database. With following template.html code: <ul> {% for item in items %} <li> {{ item.name }} </li> {% endfor %} </ul> Rendring from view.py code: def category_view(request): list = Category.objects.order_by('name') context = {'items': list} return render(request, "template.html", context=context) Now, I want to get name of the list item (category) on which user has clicked, so I can show user sub-categories on next page depending upon selected one in previous page. Kindly, share idea how to get clicked item and flow to send dependent list to next page. -
Django Rest Framework & Vue.js; login via Google account; "User is already registered with this e-mail address."
I have some trubbles with loggin to my web site via Google account. I created registarion via Google (using vue-google-login then sending that data to my backend to dj-rest-auth/google/) and thats work fine. But if I'm trying to log in user I get a response from my backend server "user is already registered with this email address". What can I do to make users sign in into my web app via Google account? How can I log in user but not register? I would be grateful if somebody give answers because I loose too much time debuging and searching the answers. I'll put my code below. If you need more info - just let me know. Thank you! # authenticate.views from allauth.socialaccount.providers.google.views import GoogleOAuth2Adapter from dj_rest_auth.registration.views import SocialLoginView class GoogleLogin(SocialLoginView): adapter_class = GoogleOAuth2Adapter #authenticate.urls from django.urls import path from . import views urlpatterns = [ path('google/', views.GoogleLogin.as_view(), name='google_login') ] #backend_main.urls from django.contrib import admin from django.urls import path, include from django.conf.urls import url from authentication.views import GoogleLogin from backend_main.api_views import get_router_urls urlpatterns = [ path('admin/', admin.site.urls), path('hr-api/', include(get_router_urls())), path('demo-hr-api/', include('backend_main.urls')), path('accounts/', include('allauth.urls'), name='socialaccount_signup'), path('dj-rest-auth/', include('dj_rest_auth.urls')), path('dj-rest-auth/registration/', include('dj_rest_auth.registration.urls')), path('dj-rest-auth/google/', GoogleLogin.as_view(), name='google_login'), ] -
Django get model datefield value
la = model._meta.get_field(field).__str__ returns <bound method Field.__str__ of <django.db.models.fields.DateField: date>> How do I get the value of the date field specifically the year? -
Django DRF works, but gives error back to AJAX call
I have kind of successfully implemented an AJAX request for to PUT in DRF. Everything is working fine, but the error callback in AJAX is triggered: drf part: class ProductDataViewSet(viewsets.ViewSet): authentication_classes = [SessionAuthentication,] permission_classes = [IsAuthenticated,] serializer_class = ProductSerializer def put(self, request): ... return Response(data = "OK", status = status.HTTP_200_OK) AJAX part: let write2db = function ( data ) { let csrf_token = $('[name="csrfmiddlewaretoken"]').attr('value'); $.ajax({ url: "api/products/", type: "PUT", data: JSON.stringify(data), dataType: "string", headers: { 'X-CSRFTOKEN': csrf_token, "Content-type": "application/json" }, success: function (request, status, error) { console.log(request, "--", status, "---", error) window.location = "/pe/?message=success&status=success"; }, error: function ( request, status, error ) { window.location = `/pe/?message=${error} - ${request.responseText}&status=danger`; } }); }; when using this JSON: data = {'number': '2', 'data': {'name': 'brand new', 'price': '2.4'}} in the console I get: "GET /pe/?message=No%20conversion%20from%20text%20to%20string%20-%20%22product%20updated%22&status=danger HTTP/1.1" 200 8188 short: No conversion from text to string. -
how to save search input query from url
I'm trying to implement a way to have my url search value carried over from one view to another. For example. if I have the url http://127.0.0.1:8000/post/search_result/posts?search=harry It would use my SearchPostView view to display all filtered posts with the authors name being harry. However on that same page I want users to be able to click a button that would take them to a page where it would show all users on the site with the name harry. My problem stems from when I try to use redirect the user to the page of filtered users, I dont understand how I could carry over the ?search=harry url value to my SearchUserView view. A good visual example is how github implements this. in the url they have search?q=harry where it would show the filtered repo page with harry in the name. If I were the click on Users button on the side navbar, it would then show the url being search?q=harry&type=users with the filtered users page Although I'm not trying to completely copy github, I essentially just want to know how to keep that url query in different views. Thanks! -
How to Implement Dependent/Chained Dropdown List with Django
I followed this tutorial on [How to Implement Dependent/Chained Dropdown List with Django][1]. But for some reason it does not work. I can get to the point that the dropdown menu's show the right list that i want. But when i try to save my form it gives me an error that the fields are requiered even if i fill them in. I keep my project on [github][2] I hope someone can have a look at my code up untill now and can point me in the right direction. Tanx in advance. [1]: https://simpleisbetterthancomplex.com/tutorial/2018/01/29/how-to-implement-dependent-or-chained-dropdown-list-with-django.html [2]: https://github.com/JeroenSchwab/Beamtime.git
