Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
-
How to I return JsonResponse from Paginator's page? Object of type Page is not JSON serializable
(this is my first stackoverflow question ever) I want to return JsonResponse from the dictionary "context" (seems to be a paginator Page) as coded below: myposts = userposts.all().values() myfollowers = userfollowers.ffollowers.all() myfollowings = userfollowers.ffollowings.all() context = {"posts": page_obj, "loops": range(1, totalpages + 1), "user": uprofile.username, "myposts": list(myposts), "mypostsnum": len(userposts.all()), "myfollowers": list(myfollowers), "myfollowersnum": len(userfollowers.ffollowers.all()), "myfollowings": list(myfollowings), "myfollowingsnum": len(userfollowers.ffollowings.all()) } this is the return I use: return JsonResponse(context, safe=False) Result I get: Object of type Page is not JSON serializable My question is how do I get JsonResponse from 'context'? -
Refused to apply style because its MIME type ('text/html') in django and next js
hello i did everything with integration but nothing seems working,its again saying the same error all next js files are default no changes settings.py STATIC_URL = '/static/' STATIC_ROOT = os.path.join(BASE_DIR,'frontend/.next/static/css') DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField' MEDIA_URL = '/media/' MEDIA_ROOT = os.path.join(BASE_DIR, 'media') pls help me find a solution to this problem i have done everything that i can do with this integration -
docker django django.db.utils.OperationalError: could not translate host name "thinkcentre" to address: No address associated with hostname
I am trying to create a docker, that run a django app which uses a Postgresql database on the same computer where I will be running the App . The database runs in current OS (Windows 10 Pro on that computer) and the docker accesses it but do not contains it. When I create my docker file and run it from another computer it works. When I create this same docker file on the computer that host the database I get thssi error: django django.db.utils.OperationalError: could not translate host name "thinkcentre" to address: No address associated with hostname My docker file is as followed: # For more information, please refer to https://aka.ms/vscode-docker-python # FROM python:3.7.10-slim-buster => couldn't install psygo2 dependencies FROM python:3.7.10 EXPOSE 7000 EXPOSE 5432 # Keeps Python from generating .pyc files in the container ENV PYTHONDONTWRITEBYTECODE=1 # Turns off buffering for easier container logging ENV PYTHONUNBUFFERED=1 # set up a venv ENV VIRTUAL_ENV=/opt/venv RUN python3 -m venv $VIRTUAL_ENV ENV PATH="$VIRTUAL_ENV/bin:$PATH" # install psycopg2 dependencies # RUN apk update # RUN apk add postgresql-dev gcc python3-dev musl-dev RUN apt update # \ # && apt add postgresql-dev gcc python3-dev musl-dev # Install pip requirements RUN pip install --upgrade pip … -
Django: Calculate avrage recipe rating
I am creating a website that lets users post recipes. When the user clicks on a recipe they can see more details about it and they can also comment and give a rating. My question is how can I calculate the average recipe rating**enter code here Models.py class Recept(models.Model): class NewManager(models.Manager): def get_queryset(self): return super().get_queryset() naslov = models.CharField(max_length=100) sestavine = models.CharField(max_length=100) priprava = models.TextField() rec_img = models.ImageField(upload_to='rec_pics', default='default2.jpg') datum = models.DateTimeField(default=timezone.now) avtor = models.ForeignKey(User, on_delete=models.CASCADE) category = models.ForeignKey(Category, on_delete=models.PROTECT, default=1) likes = models.ManyToManyField( User, related_name="blog_recept", blank=True) favorites = models.ManyToManyField( User, related_name='favorite', default=None, blank=True) newmanager = NewManager() CHOICES = ( (1, '1 stars'), (2, '2 stars'), (3, '3 stars'), (4, '4 stars'), (5, '5 stars'), ) class Reviews(models.Model): recept = models.ForeignKey( Recept, related_name="reviews", on_delete=models.CASCADE) user = models.ForeignKey( User, related_name="reviews", on_delete=models.CASCADE) content = models.TextField(blank=True, null=True) stars = models.IntegerField(choices=CHOICES) datum = models.DateTimeField(default=timezone.now) Views.py class PostDetailView(FormMixin, DetailView): model = Recept form_class = CommentForm def get_success_url(self): return reverse('recept-detail', kwargs={'pk': self.object.id}) def get_context_data(self, **kwargs): context = super(PostDetailView, self).get_context_data(**kwargs) get_recept = get_object_or_404(Recept, id=self.kwargs['pk']) fav = bool if get_recept.favorites.filter(id=self.request.user.id).exists(): fav = True total_sestavine = get_recept.vejice() total_likes = get_recept.total_likes() total_likes2 = get_recept.total_likes2() # pokliče functions liked = False if get_recept.likes.filter(id=self.request.user.id).exists(): liked = True if get_recept.likes.exists(): last_like = get_recept.last_like() context['last_like'] … -
Django and Css Link
I have Made A Project of website Django I want To Link It With css & html How I can Do That? I Want To Use Django Just Like Search Engine For Front-End -
django_crontab is adding my jobs, but they don't seem to execute. Anu solution?
I got a django project running with django-crontab (github) on Ubuntu 20. in <my_django_app> directory I added a cron.py file: from .models import <my_model> from datetime import datetime def remove_stamps(): for stamp in <my_model>.objects.order_by('-stop_date'): if stamp.can_be_removed(): stamp.delete() else: break def close_stamps(): for stamp in <my_model>.objects.filter(stop_date=None): stamp.stop_date = datetime.now() stamp.save() in settings: CRONJOBS = [ ('*/4 * * * *', '<my_django_app>.cron.remove_stamps'), ... ] CRONTAB_LOCK_JOBS = True I deployed the project as follows: First created a <new_user> in the command line with @root like this: adduser --system --home=/var/opt/<project_name> --no-create-home --disabled-password --group --shell=/bin/bash <new_user> Using Nginx I ran the virtual environment with this <new_user> using gunicorn like this: [Unit] Description=<project_name> [Service] User=<new_user> Group=<new_user> Environment="PYTHONPATH=/etc/opt/<project_name>:/opt/<project_name>" Environment="DJANGO_SETTINGS_MODULE=settings" ExecStart=/opt/<project_name>/venv/bin/gunicorn \ --workers=4 \ --log-file=/var/log/<project_name>/gunicorn.log \ --bind=127.0.0.1:8000 --bind=[::1]:8000 \ <project_name>.wsgi:application [Install] WantedBy=multi-user.target Next I added the django_crontab jobs using: PYTHONPATH=/etc/opt/<project_name>:/opt/<project_name> DJANGO_SETTINGS_MODULE=settings su <new_user> -c "/opt/<project_name>/venv/bin/python3 /opt/<project_name>/manage.py crontab add" Checking the crontab jobs with .... crontab show gives: <HASH KEY> -> ('*/4 * * * *', '<my_django_app>.cron.remove_stamps') <HASH KEY> -> ('*/5 * * * *', '<my_django_app>.cron.close_stamps') Using journalctl _COMM=cron --since="2021-5-1 14:00" to check if the job runs, gives following: May 01 17:00:01 ubuntu-2gb-hel1-2 CRON[276942]: pam_unix(cron:session): session opened for user <new_user> by (uid=0) May 01 17:00:01 ubuntu-2gb-hel1-2 CRON[276940]: pam_unix(cron:session): session … -
django CreateView forms not loading in html
I have found a lots of similar problems on this topics. None of them has proper solution. CreateView form from models not loading. models.py from django.db import models from django.contrib.auth.models import User # Create your models here. class Blog(models.Model): author: models.ForeignKey( User, on_delete=models.CASCADE, related_name='post_author') blog_title: models.CharField(max_length=264, verbose_name="Title") slug: models.SlugField(max_length=264, unique=True) blog_content: models.TextField(verbose_name="What is on your mind?") blog_image: models.ImageField( upload_to='blog_images', verbose_name='images') publish_date: models.DateField(auto_now_add=True) updated_date: models.DateTimeField(auto_now=True) def __str__(self): return self.blog_title views.py from django.shortcuts import render, HttpResponseRedirect from django.views.generic import CreateView, DeleteView, UpdateView, ListView, DetailView, View, TemplateView from App_Blog.models import Blog, Comment, Likes from django.urls import reverse, reverse_lazy from django.contrib.auth.decorators import login_required from django.contrib.auth.mixins import LoginRequiredMixin # Create your views here. def blog_list(request): return render(request, 'App_Blog/blog_list.html', context={}) class CreateBlog(LoginRequiredMixin, CreateView): model = Blog template_name = 'App_Blog/create_blog.html' fields = '__all__' urls.py from django.urls import path from App_Blog import views app_name = 'App_Blog' urlpatterns = [ path('', views.blog_list, name='blog_list'), path('write/', views.CreateBlog.as_view(), name='create_blog'), ] I am trying to load the form in this html page: create_blog.html {% extends 'base.html' %} {% load crispy_forms_tags %} {% block title_block %} Write a Blog {% endblock title_block %} {% block body_block %} <h2>Start Writing:</h2> <form method="POST" enctype="multipart/form-data"> {{ form | crispy }} {% csrf_token %} <button type="button" class="btn btn-success … -
AttributeError after POST request in Django
I am making a post request to a Django server I am running locally. I am sending the request to http://127.0.0.1/login/. Here is the view @csrf_exempt def login(request): json_data = json.loads(request.body.decode('utf-8')) print(json_data) return request.body I have @csrf_exempt for now only just so that I won't have to make a view to get the csrf token. When I send the POST request it works and prints out the json I sent with the request yet it also prints out this error. Internal Server Error: /login/ Traceback (most recent call last): File "C:\Users\Moham\AppData\Local\Programs\Python\Python37\lib\site-packages\django\core\handlers\exception.py", line 47, in inner response = get_response(request) File "C:\Users\Moham\AppData\Local\Programs\Python\Python37\lib\site-packages\django\utils\deprecation.py", line 119, in __call__ response = self.process_response(request, response) File "C:\Users\Moham\AppData\Local\Programs\Python\Python37\lib\site-packages\django\middleware\clickjacking.py", line 26, in process_response if response.get('X-Frame-Options') is not None: AttributeError: 'bytes' object has no attribute 'get' The reason this is confusing me is because I have made no reference to any object called "bytes" or any attribute called "get". Anyone know what is going on here? -
Can't see custom field in Django Admin page
I'm trying to create my own User class called Customer which extends the AbstractUser model and has an additional field called address. When I register, I see the user has been created in Django admin and all the fields (username,first name, last name and email) are seen in the django admin scrren but I see no value in the "address" field. How do I know if the address is being saved and how can I display it in the admin site? Below is my code for the models.py class Customer(AbstractUser): username = models.CharField(unique=True, max_length=20) deladdress = models.CharField(max_length=100) views.py def signupPage(request): signForm = CreateCustomer() if request.method=='POST': signForm = CreateCustomer(request.POST) if signForm.is_valid(): signForm.save() return render(request, 'trial_app/signup.html', {'signForm':signForm}) forms.py class CreateCustomer(UserCreationForm): address = forms.CharField(widget=forms.Textarea) class Meta: model = Customer fields = ['username','first_name','last_name','email','address','password1','password2'] def save(self, commit=True): user = super(CreateCustomer, self).save(commit=False) user.address = self.cleaned_data["address"] if commit: user.save() return user Here are some pictures that are the input to my html form and the value in the admin site -
How can i get username insted of userid?
model.py class Review(models.Model): user = models.ForeignKey(User,on_delete=models.CASCADE) product = models.ForeignKey(Product,on_delete=models.CASCADE) review = models.CharField(max_length=500) date_reviewed = models.DateTimeField(auto_now_add=True) views.py def review(request): if request.method=="POST": if request.user.is_authenticated: sender = request.user review=request.POST['review'] pid = request.POST['pid'] product=Product.objects.get(id=pid) print(user) rev = Review(user=sender,product=product,review=review) rev.save() reviews = Review.objects.filter(product=pid).values() da=list(reviews) print(da) return JsonResponse({'reviews':da}) Expected output: [{'id': 6, 'user_name': sandeep, 'product_id': 2, 'review': 'lknkk', 'date_reviewed': datetime.datetime(2021, 5, 1, 13, 2, 12, 404779, tzinfo=<UTC>)}] I am trying send this data to my frontend using jsonresponse to create a product review table but in the output i am getting user_id insted of user_name .is there any way to pass user_name? Here is actual output: [{'id': 6, 'user_id': 2, 'product_id': 2, 'review': 'lknkk', 'date_reviewed': datetime.datetime(2021, 5, 1, 13, 2, 12, 404779, tzinfo=<UTC>)}] -
Django:django.db.utils.IntegrityError: FOREIGN KEY constraint failed
What I m trying to do is when a user return cylinder then the record of that user in the issue cylinder will be deleted and if the availability of the return cylinder is yes then update the cylinder Availability will be updated as "available" else the cylinder entry will be deleted. But when I try to do so it displays the following error : Traceback (most recent call last): File "C:\python3.9\lib\site-packages\django\db\backends\utils.py", line 86, in _execute return self.cursor.execute(sql, params) File "C:\python3.9\lib\site-packages\django\db\backends\sqlite3\base.py", line 396, in execute return Database.Cursor.execute(self, query, params) sqlite3.IntegrityError: FOREIGN KEY constraint failed It was working fine until unless I have set the return Availability "no". here is models: from django.db import models from django.utils import timezone from django.urls import reverse # Create your models here. class CylinderEntry(models.Model): stachoice=[ ('Fill','fill'), ('Empty','empty') ] substachoice=[ ('Available','availabe'), ] cylinderId=models.CharField(max_length=50,unique=True) gasName=models.CharField(max_length=200) cylinderSize=models.CharField(max_length=30) Status=models.CharField(max_length=40,choices=stachoice,default='fill') Availability=models.CharField(max_length=40,choices=substachoice,default="available") EntryDate=models.DateTimeField(default=timezone.now) def get_absolute_url(self): return reverse('cylinderDetail',args=[(self.id)]) def __str__(self): return self.cylinderId class IssueCylinder(models.Model): cylinder=models.OneToOneField('CylinderEntry',on_delete=models.CASCADE) userName=models.CharField(max_length=60) issueDate=models.DateTimeField(default=timezone.now) def save(self,*args,**kwargs): if not self.pk: CylinderEntry.objects.filter(cylinderId=self.cylinder.cylinderId).update(Availability=('issued')) super().save(*args,**kwargs) def __str__(self): return self.userName class ReturnCylinder(models.Model): rechoice=[ ('fill','Fill'), ('empty','Empty') ] reav=[ ('Yes','yes'), ('No','no') ] Cylinder=models.OneToOneField('CylinderEntry',on_delete=models.CASCADE) user=models.ForeignKey('IssueCylinder',on_delete=models.CASCADE) status=models.CharField(max_length=20,choices=rechoice) returnDate=models.DateTimeField(default=timezone.now) Availability=models.CharField(max_length=5,choices=reav) def save(self,*args,**kwargs): if not self.pk: IssueCylinder.objects.filter(userName=self.user.userName).delete() if self.status=='yes'or self.status=='Yes': CylinderEntry.objects.filter(cylinderId=self.Cylinder.cylinderId).update(Availability=('available')) else: CylinderEntry.objects.filter(cylinderId=self.Cylinder.cylinderId).delete() super().save(*args,**kwargs) def __str__(self): return self.user.userName+" returned "+self.cylinder.cylinderId … -
How to write Case query in raw sql
I want to write a view using raw sql(I know that it's better to use ORM, I just need to use only SQL in my work). However, CASE does not work in a query. Does RAW support case or no? Here is my view: def profile(request): cursor = connection.cursor() cursor.execute('SELECT * from Lesson ' 'WHERE CASE WHEN(LName = %s) THEN (LName = %s) END', ['Algebra', 'English']) objects = dictfetchall(cursor) return render(request,'personal.html', {'objects':objects}) It returns the following error Invalid syntax around '=' -
Django: extra_content for class based view not displaying any data
I am trying to make a site that displays all of the items in a "case", and at the top I want to display the total value of all of the items in the "case". To get this number you would get all of the items in the case, multiply their value and quantity and add them all up. However when I pass this to my extra_content nothing is displayed.Any help would be awesome! My View: class CaseHome(ListView): model = CaseItem template_name = 'mycase/casehome.html' total = CaseItem.objects.all().aggregate(total=Sum(F('Item_Price')*F('Item_Quantity')))['total'] extra_content = {'my_total': total} My Model: class CaseItem(models.Model): Item_Title = models.CharField(max_length=200) Item_Price = models.DecimalField(default=0, max_digits=10, decimal_places=2) Item_Quantity = models.DecimalField(default=0, max_digits=10, decimal_places=2) def __str__(self): return self.Item_Title + ' | ' + str(self.Item_Quantity) + ' * $' + str(self.Item_Price) def get_absolute_url(self): return reverse('home') My Template: {% block content %} <p>{{my_total}}</p> {% for item in object_list %} <div class="container"> <div class="item" style="border: 2px solid black; margin: 3px; padding: 3px"> <a href="{% url 'item-editor' item.pk %} "><h3 style="display: inline-block">{{ item.Item_Title }}</h3><h5 style="float: right"><span class="badge bg-info text-dark">Quantity:{{ item.Item_Quantity}}</span> <span class="badge bg-info text-dark" style="margin-left: 15px;"> Price: ${{item.Item_Price}} </span> </div> </h5></a> <hr> </div> {% endfor %} {% endblock %} -
which of the framework is good for a dating website?
I want to find out which of this frame work is good for a dating website, Node.js, Laravel ,flask and Django. This adult dating does not have video feature for now but will be added in the feature. Note, I will start in a shared hosting before dedicated IP -
Django Channels: How to pass incoming messages to external script which is running outside of django?
I have started a private project with Django and Channels to build a web-based UI to control the music player daemon (mpd) on raspberry pi. I know that there are other projects like Volumio or moode audio etc. out of the box that is doing the same, but my intension is to learn something new! Up to now I have managed to setup a nginx server on the pi that communicates with my devices like mobile phone or pc. In the background nginx communicates with an uWSGI server for http requests to Django and a daphne server as asgi for ws connection to Django Channels. As well there is a redis server installed as backend because the Channels Layer needs this. So, on client request a simple html page as UI is served and a websocket connection is established so far. In parallel I have a separate script as a mpd handler which is wrapped in a while loop to keep it alive, and which does all the stuff with mpd using the python module python-mpd2. The mpd handler shall get its commands via websocket from the clients/consumers like play, stop etc. and reacts on that. At the same time, … -
i can't load DOM elements in multiple html files in the same js file
I am working with Django and using base.html, I have tried putting js file in base.html it didn't worked and after that one in main.html file, still its not working ,I am trying to implement a darkmode functionality in my webapp but this hinders the process.the darkmode button is in navbar in base.html, let darkmodebtn=document.querySelector(".darkmodebtn") let cardark=document.querySelectorAll(".cardtotoggle") console.log(cardark) darkmodebtn.addEventListener('click', function(e) { e.preventDefault() body=document.body body.classList.toggle("dark"); cardark.forEach(function(node){ var superToggle = function(element, class0, class1,class2) { element.classList.toggle(class0); element.classList.toggle(class1); element.classList.toggle(class2); } superToggle(node,'bg-dark','text-light'); console.log(node.className); }); }); this is the JavaScript code I am trying to implement, i was using bootstrap and was to able to implement bg-color to the card background so used foreach and the cards are formed using {%for%} template tag. Can someone explain what is the proper method to use JavaScript to include multiple html-files DOM elements -
apply a css class to all fields and one more class to two different fields
I have this __init__ inside a ModelForm class that I am using to apply CSS to all fields but want to apply another class to two different fields. So, I want all fields to have class-a but, field1 and field2 should also have class-b def __init__(self, *args, **kwargs): super(MyModelForm, self).__init__(*args, **kwargs) for i, f in self.fields.items(): f.widget.attrs['class'] = "class-a" if f in ['field1', 'field2']: f.widget.attrs['class'] = "class-a class-b" class-a is added to all input fields, but class-b is not added to field1 and field2 -
Why I am getting 500 internal error on django-template?
I am trying this view on ubuntu v20.04 and apache2 with Django WSGI. I have an ajax post function on my Django template. $.post({ method: 'POST', url: "{% url 'Bot:retroactive' %}", data: {'market': market_name, 'date' : date.value, 'deletecheck':deletecheck.checked, csrfmiddlewaretoken: '{{ csrf_token }}' }, success: function (data) { toastr.success( market_name+" botu "+date.value+" tarihli veriyi başarıyla çalıştırdı.", { onHidden: function () { window.location.reload(); } } ); }, error: function (data) { console.log(data) console.log('error') } }); And my view is : if request.POST: market = request.POST.get('market') date = request.POST.get('date') deletecheck = request.POST.get('deletecheck') print(market,date,deletecheck) return HttpResponse(status=200) There is no problem when I run this view on localhost or on a server with manuel port (0.0.0.0:3939) When I run on the apache2 ubuntu server I am getting the following error: POST https://xxx.xxx.com/xxx/xxx/ 500 (Internal Server Error) send @ vendor-all.min.js:3 ajax @ vendor-all.min.js:3 xe.<computed> @ vendor-all.min.js:3 (anonymous) @ (index):379 Do you have any suggestion to fix it? -
problems when installing django-inventory
that's what shows when i'm trying to install django-inventory {python version 3.9} {pillow version 8.2.0} at the beginning of the Error : Running setup.py install for Pillow ... error ERROR: Command errored out with exit status 1: at the end of the Error : Rolling back uninstall of pillow because of the length of the Error i couldn't write it all. so please can anybody help me :( -
How do I reorder a list of objects manually using Django, Python, (and possibly Javascript)?
Here is my code. models.py from django.db import models class Photo(models.Model): file = models.ImageField(upload_to='media/images') class Album(models.Model): title = models.CharField(max_length=100) photos = models.ManyToManyField(Photo,related_name="photos",blank=True) admin.py from django.contrib import admin from .models import Photo, Album # Register your models here. class AlbumAdmin(admin.ModelAdmin): list_display = ("title","published") filter_horizontal = ("photos",) def formfield_for_manytomany(self, db_field, request, **kwargs): if db_field.name == "photos": kwargs["queryset"] = Photo.objects.order_by("-id") return super(AlbumAdmin, self).formfield_for_manytomany(db_field, request, **kwargs) admin.site.register(Photo) admin.site.register(Album, AlbumAdmin) views.py from django.shortcuts import render from django.conf import settings from .models import Photo, Album # Create your views here. def album(request, album_title): album = Album.objects.get(title=album_title) context = { "album":album, } return render(request, "photos/album.html", context) I am trying to achieve a page that shows the photos in each album and has a drag-and-drop function that allows a manual re-ordering of the photos in each album. Then I wish to save the order of the album. The only problem is, I have no clue to how to do this. -
trying to implement stripe "AttributeError: sources"
i am getting an error when submiting Credit Card information Saying ("AttributeError at /API/CheckOut/" sources) i think it's comming from here but i don't know what the problem is views.py class PaymentView(APIView): def post(self, request, *args, **kwargs): order = Order.objects.get(user=self.request.user, ordered=False) userprofile = UserProfile.objects.get(user=self.request.user) token = request.data.get('stripeToken') if userprofile.stripe_customer_id != '' and userprofile.stripe_customer_id is not None: customer = stripe.Customer.retrieve( userprofile.stripe_customer_id) customer.sources.create(source=token) else: customer = stripe.Customer.create( email=self.request.user.email, ) customer.sources.create(source=token) userprofile.stripe_customer_id = customer['id'] userprofile.one_click_purchasing = True userprofile.save() i am using React on the frontend and Posting the Token like this const {error, paymentMethod} = await stripe.createPaymentMethod({ type: 'card', card: cardElement, }); const stoken=paymentMethod.id if (error) { seterror(error) setloading(false); } else { seterror(null) axios .post(checkoutURL, { stoken, selectedBillingAddress, selectedShippingAddress }) -
PyCharm - Django shell/shell_plus in Debug mode - autocomplete
I've created a configuration in PyCharm that allows me to debug Django shell/shell_plus. It works correctly but I would like it also to autocomplete methods and attributes like it does when executed this way: python manage.py shell_plus It probably needs to use iPython which I installed but I don't know where to set this up. Do you know what to do? -
Why does not date input does not return None if nothing is passed?
Here is my html code <form method="GET" class="container mb-5"> <label for="inputDate">Enter the date:</label> <div class="row"> <div class="col-3"> <div class="row"> <div class="col-1 mr-2">С:</div> <input class="col-10" type="date" class="form-control" name="searchdate" value="{{ value1 }}"> </div> </div> <div class="col-3 ml-3"> <div class="row"> <div class="col-1 mr-3">До:</div> <input class="col-10" type="date" class="form-control" name="searchto" value="{{ value_3 }}"> </div> </div> </div> <button type="submit" class="btn btn-outline-primary px-5" >Search</button> </form> {{ value1 }} {{ value_3 }} and here is my views: def profile(request): value_one = request.GET.get("searchdate", None) value_three = request.GET.get("searchto", None) return render(request,'personal.html',{'value1':value_one,'value3':value_three}) The date appears in html only if I input something, but when I don't set any date it is just blank page, however on the website should be displyed 'None None', shouldn't it? -
Reorder django core functionality
I faced with the problem of Django multi site project. Each site can handle multiple languages. Project handle languages by url and we don’t use default language prefix. For example Site one: root / specify russian language and /en specify english version of site (default language is russian) Site two: root / specify english language and /ru specify russian version of site (default language is english) Django has a problem. Framework cache resolver and store prefixes for some sites. When I begin to use different default languages for different domains I was confuse with wrong prefixes. I must change behavior of django get_resolver() function becouse of hist @functools.lru_cache decorator (this is django file): def get_resolver(urlconf=None): if urlconf is None: urlconf = settings.ROOT_URLCONF return _get_cached_resolver(urlconf) @functools.lru_cache(maxsize=None) def _get_cached_resolver(urlconf=None): return URLResolver(RegexPattern(r'^/'), urlconf) Can I do something to disable cache? Or make cache depend of site? I tried to reorder function in django core module My solution is: from django.urls.resolvers import URLResolver, RegexPattern @functools.lru_cache(maxsize=None) def get_resolver_for_site(site_id, urlconf): return URLResolver(RegexPattern(r'^/'), urlconf) def _get_cached_resolver_for_site(urlconf=None): return get_resolver_for_site(get_site().id, urlconf) @receiver(post_save, sender=SiteSettings) def clear_url_resolver_cache(sender, **kwargs): get_resolver_for_site.cache_clear() resolvers._get_cached_resolver = _get_cached_resolver_for_site So I defined custom function, that return url resolver and cache it depend of site. I think this is … -
Django Template - If both IF statements are empty
I know how to use an if statement in django, and if the if is empty. Like this: {% if results %} <!-- True --> {% else %} <!-- False --> {% endif %} Now how do I do this if I have more than on if statement like this: {% if users %} <!-- Users is true --> {% endif %} {% if results %} <!-- Results is true --> {% endif %} <!-- Problem: --> {% if results and users %} <!-- Both are true --> {% else %} <!-- Do only if both are false --> {% endif %} So I tried using if and but it didn't work, even if one existed it still ran the stuff in the else. So how do I make sure it checks if both statements are false, and only if they are both false, to run the else. Any suggestions?
