Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Django, I'm not able to pass a variable from Views to html template
Good day, I'm new to Django and following CS50Web. I've been having a headache for a couple of days trying to understand why this is not working. Basically we have a Flights model and a Passengers model with a many-to-many relationship. here is the views.py code: def flight(request, flight_id): flight = Flight.objects.get(pk=flight_id) passengers = flight.passengers.all() print(passengers) return render(request, "flights/flight.html", { "flight": flight, "passengers:": passengers }) and here is the html: <h2> Passengers </h2> <ul> {% for passenger in passengers %} <li>{{ passenger }}</li> {% empty %} <li>No passengers.</li> {% endfor %} </ul> I know the passengers variable is not empty, the print statement returns: "<QuerySet [<Passenger: Fidel Castro>, <Passenger: James Bond>, <Passenger: Larry Bird>]>" Still, the rendered Html page always shows no passengers! Could a good soul help me understand what I'm I doing wrong? Because I'm out of ideas at this point. Thank you in advance -
Django Upload File to S3
How do I link my form to upload in AWS S3 and display the avatar? (Using views.py) I just need to use my current bucket which works for static files for media after making the media file private and only for authenticated users to use. models.py from django.db import models from django.contrib.auth.models import AbstractUser class Profile(AbstractUser): """ bio = models.TextField(max_length=500, blank=True) phone_number = models.CharField(max_length=12, blank=True) birth_date = models.DateField(null=True, blank=True) """ avatar = models.ImageField(default='default.png', upload_to='users/', null=True, blank=True) pages/forms.py from django import forms from django.core.files.images import get_image_dimensions from pages.models import Profile class UserProfileForm(forms.ModelForm): class Meta: model = Profile def clean_avatar(self): avatar = self.cleaned_data['avatar'] try: w, h = get_image_dimensions(avatar) #validate dimensions max_width = max_height = 100 if w > max_width or h > max_height: raise forms.ValidationError( u'Please use an image that is ' '%s x %s pixels or smaller.' % (max_width, max_height)) #validate content type main, sub = avatar.content_type.split('/') if not (main == 'image' and sub in ['jpeg', 'pjpeg', 'gif', 'png']): raise forms.ValidationError(u'Please use a JPEG, ' 'GIF or PNG image.') #validate file size if len(avatar) > (20 * 1024): raise forms.ValidationError( u'Avatar file size may not exceed 20k.') except AttributeError: """ Handles case when we are updating the user profile and do … -
django video file not playing
I am trying to build a video streaming app with django. class Video(models.Model): author = models.ForeignKey(User, on_delete=models.CASCADE) thumbnail = models.ImageField(upload_to='thumbnail', blank=True, null=True) file = models.FileField(upload_to='video', validators=[FileExtensionValidator(allowed_extensions=['mov', 'MOV','avi','mp4', 'MP4','webm','mkv'])]) list view {% for video in page_obj.object_list %} <video width="400" height="350" controls {% if video.thumbnail %} poster="{{ video.thumbnail.url }}" {% endif %} > <source src= "{{ video.file.url }}" type="video/mov"> </video> {% endfor %} The result is that when I click on play, it stuck at thumbnail and no data displayed on timeline, which video is not loaded. When I goes to the url of the video, there is an error in console Failed to load resource: Plug-in handled load I wonder why this happens, will be grateful for your help. in addition, in html, type attribute of source tag, is there a way I can get meta type definition from FileField? for example, if it is mp4 I want to get video/mp4 in string. >>> from video.models import Video >>> vs = Video.objects.all() >>> v = vs[0] >>> v.video Traceback (most recent call last): File "<console>", line 1, in <module> AttributeError: 'Video' object has no attribute 'video' >>> v.file <FieldFile: video/roc_i9zy5He.mov> >>> v.file.url '/media/video/roc_i9zy5He.mov' >>> v.file.type Traceback (most recent call last): File … -
This page isn’t working , redirected you too many times. django
When I run python manage.py runserver the server runs fine. But the web page show the redirection. I have attached the image link below. how can I resolve the issue? redirected you too many times -
Select a valid choice. 1 is not one of the available choices. django error
I am creating an app that needs value from views.py for filtering data in choice field. So I passes the data from views to init using kwargs. I wrote a query and added that in choice field in init. The data is displaying correctly but when I post the form It throwing the above error. "Select a valid choice. 1 is not one of the available choices." class General(ModelForm): def __init__(self, *args, **kwargs): self.n_data1 = kwargs.pop('data1') super(GeneralPostingForm, self).__init__(*args, **kwargs) CHOICES = Glheads.objects.filter(data=self.n_data1, status=1, acmast=1) new_choices = [ (p.head, f'{p.head}-{p.detail}') for p in CHOICES ] self.fields['head'].choices = new_choices head = forms.ChoiceField(widget=forms.Select(), label='HEAD') -
Request permission not appearing in fcm for django
I am using gitpod to test the push notifications that I have setup in DJnago using firebase. Everything went well but in the end the request permission dialog box didn't appear. I am not sure what is the cause. The link that I followed is this one: https://blog.hipolabs.com/testing-push-notifications-locally-with-firebase-ef052531af03 It was supposed to come like this: But in mine it appears like this: The request permission button is missing on mine. I have done several attempts but the same result. The index.html file looks like this: function requestPermission() { console.log('Requesting permission...'); Notification.requestPermission().then((permission) => { if (permission === 'granted') { console.log('Notification permission granted.'); // TODO(developer): Retrieve a registration token for use with FCM. // In many cases once an app has been granted notification permission, // it should update its UI reflecting this. resetUI(); } else { console.log('Unable to get permission to notify.'); } }); } -
how to sort a query of Django Model by Sub String
there are list of companies like this Google Facebook Arac Curc FkbaOl I put 'a' character param. Then it should return the companies which contains a character. right? currently, it is working well it returns the all companies which has 'a' character. it returns the all companies which has 'a' character. but sorting has. problem Facebook Arac FkbaOl I guess currently, it returns these three which contains 'a' character it should look like this. Arac Facebook FkbaOl which starts with 'a', should be at the top -
Website that generates quotes from my db depens on 365 days
I like to create website that show quotes depends on days(365) for this how can create js function . Example: day 1 : hello day 2 : hi For today 1 : web sites print hello How can I create this for 365 days -
How can I join multiple models in Django into a virtual table?
If I have 3 models, like: class Cow(models.Model): name = number_of_eyes = number_of_feet = color = class Pig(models.Model): name = number_of_eyes = number_of_feet = intelligence = class Horse(models.Model): name = number_of_eyes = number_of_hooves = weight_capacity = speed = And I'm interested in making a single Livestock table in my template that has instances of all 3, but I'm only interested in these columns that all 3 models have: name number_of_eyes number_of_feet (number_of_hooves if Horse) And we can ignore all other columns. How can I join them into a single queryset? The end goal is to get a single virtual table (queryset) that I can do a few other operations on (order_by, slice), and then return the data in just those columns. Is this possible in the Django ORM? -
Django, successful login, but still anonymous user
Being anonymous user even after successful login, here is views.py: class LoginView(views.APIView): def post(self, request): data = serializers.LoginSerializer(data=request.data) print(data.is_valid()) print(data.errors) print(f" HEEERE::: {data}") if self.request.method == 'POST': if data.is_valid(): auth = authenticate( username=data.validated_data['email'], password=data.validated_data['password']) print(f" email check : {data.validated_data['email']}") print(f"auth:: {auth}") if auth is not None: login(request, auth) print("Hello World") return redirect("/somelink") else: return HttpResponse("Invalid Credentials") else: return HttpResponse("Data not being validated :O") class LogoutView(views.APIView): def post(self, request): logout(request) serializers.py class LoginSerializer(serializers.Serializer): email = serializers.EmailField() password = serializers.CharField(write_only=True) def validate(self, data): email = data.get("email") print(f" email here : {email}") password = data.get("password") user = authenticate(username=email, password=password) print(f"{user} username serializer ") print(f"this is data : {data}") if user is not None: return data raise serializers.ValidationError("Incorrect Credentials") in frontend side (React): login component: import React, { useState } from 'react'; import { Link , Redirect} from 'react-router-dom'; import { connect } from 'react-redux'; import { login } from '../actions/auth'; import axios from 'axios'; import Cookies from 'js-cookie'; function Login(){ let [login,setLogin,isLoggedin] = useState({ email: '', password:'' }); let cookie = Cookies.get('csrftoken'); const { email, password } = login; function handleChange(e){ console.log(e.target.value); setLogin({ ...login, [e.target.name]: e.target.value }); } function handleSubmit(e){ e.preventDefault(); axios.post(' http://127.0.0.1:8000/login/',login,{withCredentials:true},{headers: {'Content-Type': 'application/json', 'X-CSRFToken': cookie,'Access-Control-Allow-Origin':'*'}}) .then(res => { console.log(res.data); setLogin({ ...login, … -
Django Rest Framework: saving data into database from a particular input structure
This is my first time with Django Rest Framework. I have two particular models for storing data into the database whose are: class RuleTree(models.Model): ruleId = models.IntegerField(primary_key=True) parentId = models.IntegerField() keyText = models.CharField(max_length=200) class RuletreeExtended(models.Model): rule = models.OneToOneField(RuleTree,on_delete=models.CASCADE,primary_key=True) createdOnUtc = models.TextField(blank=True) bodyRegion = models.CharField(blank=True,max_length=100) isActive = models.BooleanField(blank=True) I need to design an API with the following structured inputs and save them to the pre-defined database model (there are several more fields in this input structure that need to access from views.py and will be useful later). { "Success": true, "Status": "insert", "Data": { "RuleJson": "{\"condition\":\"AND\",\"rules\":[{\"condition\":\"OR\",\"rules\":[{\"id\":\"1206\",\"field\":\"ansid_1206\",\"type\":\"integer\",\"input\":\"checkbox\",\"operator\":\"in\",\"value\":[2620,2621,2622]},{\"id\":\"1383\",\"field\":\"ansid_1383\",\"type\":\"integer\",\"input\":\"checkbox\",\"operator\":\"in\",\"value\":[3058,3059,3060,3061,3062,3063,3064,3065,3066,3067]}]}],\"valid\":true}", "ICD10Codes": "3916", "CreatedOnUtc": "2021-11-01T10:33:13.7145563", "UpdatedOnUtc": "2021-11-09T13:04:01.3089361", "BodyRegion": [ 0, 1, 5 ], "IsDefaultBodyRegionRule": false, "DefaultBodyRegionList": [ 0, 4 ], "IsActive": false, "IsDeleted": false, "Id": 5504, "ParentId": 276, "KeyText": "PFRProv1", "Title": "Plantar Fasciitis Right" } } Please advise me how to access this input data from views.py so that I can store them in my database; And how do I design a suitable serializer for this. -
Django display several foreign key values in template
I have tried dozens of solutions on her to solve this but nothing seems to be working as expected. I'm trying to show a list of Facilites which are connected with several Foreign Keys to additonal models. (FacilityAddress, FacilityInspectionInfo and FacilityComplaints). I can show the facility names but i cannot show the data of the models within the foreign key models like FacilityAddress for example: Model class Facility(models.Model): UUID = models.CharField(max_length=150, null=True, blank=True) Name = models.CharField(max_length=50, null=True, blank=True) admin_uid = models.OneToOneField(User, null=True, blank=True, on_delete=models.SET_NULL) IssuedNumber = models.CharField(max_length=20, null=True, blank=True) mainimage = models.ImageField(null=True, blank=True) Capacity = models.IntegerField(null=True, blank=True) Licensee = models.CharField(max_length=50, null=True, blank=True) Email = models.EmailField(max_length=30, null=True, blank=True) AdministratorName = models.CharField(max_length=30, null=True, blank=True) Status = models.CharField(max_length=10, null=True, blank=True) TelephoneNumber = models.CharField(max_length=20, null=True, blank=True) ClosedTimestamp = models.IntegerField(null=True, blank=True) MostRecentLicenseTimestamp = models.IntegerField(null=True, blank=True) class Meta: verbose_name_plural = "facilities" def __str__(self): return self.Name class FacilityAddress(models.Model): PrimaryAddress = models.CharField(max_length=50, null=True, blank=True) SecondaryAddress = models.CharField(max_length=50, null=True, blank=True) City = models.CharField(max_length=50, null=True, blank=True) RegionOrState = models.CharField(max_length=30, null=True, blank=True) PostalCode = models.CharField(max_length=20, null=True, blank=True) Geolocation = models.CharField(max_length=20, null=True, blank=True) AddressInfo = models.ForeignKey(Facility, null=True, blank=True, on_delete=models.CASCADE) class Meta: verbose_name_plural = "facility addresses" def __str__(self): return f"{self.PrimaryAddress} {self.City}" class FacilityInspectionInfo(models.Model): ComplaintRelatedVisits = models.IntegerField(null=True, blank=True) InspectionRelatedVisits = models.IntegerField(null=True, blank=True) NumberOfVisits = … -
CommandError: 'D:\Python\Project\resume_1' already exists
I am creating a django project. I can successfully create virtual environment and pip install django, but when I try to create project using django-admin startproject resume_1 There is an error that showed CommandError: 'D:\Python\Project\resume_1' already exists I tried uninstalling django twice but it only allowed me to uninstall once, so it is likely not about duplicate django, I also checked the lib\site-packages, there are no duplicated folders or folders either. However, I do have two versions of python right now, one installed along with anaconda, one is separated from anaconda and directly downloaded from python.org. Right now, I am just using the separate python, I even checked the python version, and the pip version, so it should be fine. Still, I could be wrong since I am not that experienced. What should I do? -
How can i fully customize sidebar_menu in django admin panel?
I don't know any way how can I overright sidebar_menu.html or create some progress to customize it. so can i get some hits what can i do for coustomize? -
Converting SQL to something that Django can use
I am working on converting some relatively complex SQL into something that Django can play with. I am trying not to just use the raw SQL, since I think playing with the standard Django toolkit will help me learn more about Django. I have already managed to break up parts of the sql into chunks, and am tackling them piecemeal to make things a little easier. Here is the SQL in question: SELECT i.year, i.brand, i.desc, i.colour, i.size, i.mpn, i.url, COALESCE(DATE_FORMAT(i_eta.eta, '%M %Y'),'Unknown') as eta FROM i JOIN i_eta ON i_eta.mpn = i.mpn WHERE category LIKE 'kids' ORDER BY i.brand, i.desc, i.colour, FIELD(size, 'xxl','xl','l','ml','m','s','xs','xxs') DESC, size+0, size Here is what I have (trying to convert line by line): (grabbed automatically when performing filters) (have to figure out django doc on coalesce for syntax) db alias haven't been able to find yet - it is crucial since there is a db view that requires it already included in the original q .select_related? .filter(category="kids") .objects.order_by('brand','desc','colour') - don't know how to deal with SQL FIELDS Any advice would be appreciated! -
Gunicorn Not Finding Dotenv
I'm in the process of setting up a Digital Ocean Ubuntu VPS with Django following the instructions they supplied. I was able to run: python3 manage.py runserver 0.0.0.0:8000 The application came up and worked. It's a copy from my development machine. The next step is to test Gunicorn. The command given is: gunicorn --bind 0.0.0.0:8000 fosteryouth.wsgi The process exits with the last of the error messages being: File "/var/www/fosteryouth/fosteryouth/settings.py", line 15, in <module> from dotenv import load_dotenv ModuleNotFoundError: No module named 'dotenv' [2021-12-19 00:43:51 +0000] [59490] [INFO] Worker exiting (pid: 59490) [2021-12-19 00:43:51 +0000] [59488] [INFO] Shutting down: Master [2021-12-19 00:43:51 +0000] [59488] [INFO] Reason: Worker failed to boot. The first non-comment lines from my setting file are: from pathlib import Path import os from dotenv import load_dotenv load_dotenv(override=True) Line 15 is "from dotenv import load_dotenv" There was no problem finding it when using runserver above. I'm using virtualenv and it is activated. I've set up number other Django servers on Digital Ocean in the past. At the time, the instructions didn't include this step. You went directly the setting up socket and services files for gunicorn. Any idea what the problem is? Ubuntu 20.04, Django 4.0, Python 3.8 -
Run tests on Heroku Docker container with GitHub Actions
I am successfully deploying to Heroku a dockerized Django app via GitHub Actions. My GitHub Actions workflow: name: Deploy to heroku. on: push: branches: [poet] jobs: build: runs-on: ubuntu-latest steps: # Check-out your repository. - name: Checkout uses: actions/checkout@v2 # Build and deploy - name: Build, push, and release Docker to Heroku. uses: gonuit/heroku-docker-deploy@v1.3.3 with: email: <email> heroku_api_key: ${{ secrets.HEROKU_API_KEY }} heroku_app_name: <app> dockerfile_directory: ./image/app/ dockerfile_name: Dockerfile docker_options: "--no-cache --target prod" process_type: web - name: Test run: python manage.py test # this doesn't work First of all, I'd like to confirm that the test step should be something like what I show above (name: Test). In other words, should testing be another step in the build job? Or should it be it's own job? Running that command as a step within the same job produces the error python: can't open file 'manage.py'. Alternatively, if I were to make it its own job, I suppose I should try with heroku ps:exec. However, to interact with a Docker container in Heroku apparently requires a lot of modifications and I'm not convinced that's the way to go yet. For what it's worth, if I try to run the console in Heroku and in … -
How to unhash a password in Django if you know the Secret Key
I have a simple Django website setup. For a science fair project, i am showing vulnerabilities in Django. I know the secret key of the website, and I have a hashed password. How can I unhash the password using the Secret Key? Also if anyone can do it for me - Here is the hashed password: pbkdf2_sha256$260000$zWIVM50moQjtqcPoX5Fycd$X7Dq6BKX5lHiY9dnBlBdR3OGrJuREX5uSeCSbA4ZdaE= And here is the secret key: django-insecure-vv7oicn&(hj10ds11-b*nus#b%h=xqzyhr&b$&g9+_1gmckd$2 If anyone can unhash it for me, I can paypal you some money, I really need this done. Thanks! -
Summing columns in Django with related fields
I'm trying to do some aggregation on some of my Django columns, but I'm getting an error I can't figure out. Here are my models (the relevant stuff anyways): class Fillup(models.Model): user = models.ForeignKey(settings.AUTH_USER_MODEL,on_delete=models.CASCADE) date = models.DateField(default=date.today) trip_distance = models.FloatField(validators=[MinValueValidator(0.0)]) car = models.ForeignKey('Car',on_delete=models.CASCADE, related_name='fillups') class Car(models.Model): user = models.ForeignKey(settings.AUTH_USER_MODEL,on_delete=models.CASCADE) name = models.CharField(max_length=25) So each Fillup object is essentially a tank of gas in a car, and what I want to do is get the total of the trip_distance column for each car. I've tried several things from various other StackOverFlow pages, but nothing seems to work. My first attempt was this adding this field to the Car Model: @property def distance_driven(self): return self.fillups.aggregate(sum('trip__distance')) But I just get the following error: TypeError: unsupported operand type(s) for +: 'int' and 'str' I also tried adding this to my serializer, but got the same error: distance_driven = serializers.SerializerMethodField() def get_distance_driven(self, ob): return ob.fillups.all().aggregate(sum('trip_distance'))['trip__distance'] Is there something I'm missing here? I don't understand why I'm getting that error when trying to sum a FloatField column. Any help would be greatly appreciated! -
How can I decrypt a Django password?
I have a simple website set up with Django, and I want to know how I can decrypt a password in order to access the Django Admin panel. Assuming I know the username, is it possible to decrypt the password so that I can access the account? Also here is the encryption if anyone wants to help: pbkdf2_sha256$260000$zWIVM50moQjtqcPoX5Fycd$X7Dq6BKX5lHiY9dnBlBdR3OGrJuREX5uSeCSbA4ZdaE= -
Why postgres changes the order after updating record django postgres
I'm updating a record in my Postgres database but I don't know why after updating the record Postgres changes the order of the updated row in the DB, I have attached the example below. views.py @api_view(['GET', 'PATCH']) def tag_detail(request, project_id, tag_id): if request.method == 'PATCH': tag = Tag.objects.get(project_id=project_id, pk=tag_id) tag.ship_date = request.data.get('ship_date', tag.ship_date) tag.save() return Response("ok") before update order: Record 1 Record 2 Record 3 let's assume we have updated "Record 2", so the order will be: Record 1 Record 3 Record 2 -
Sudden trouble connecting to consumer using Celery and CloudAMQP. Error message: BDB0210 celerybeat-schedule.db: metadata page checksum error
I am using CloudAMQP with Celery on Heroku to schedule tasks. When I push my code to Heroku, I am suddenly receiving the following error: BDB0210 celerybeat-schedule.db: metadata page checksum error consumer: Cannot connect to amqps://user:password@bonobo.rmq.cloudamqp.com:port/user: The read operation timed out. The thing is, it worked perfecty fine for like 3 months. The other day I'm suddenly getting this error. I've check the commits on Github, and there have been no adjustments to my settings. What could this error be then? My current Heroku configurations are: CELERY_BROKER_URL = "amqps://user:password@bonobo.rmq.cloudamqp.com:port/user" CELERY_RESULT_BACKEND = "rpc://" CELERY_ACCEPT_CONTENT = ['application/json'] CELERY_TASK_SERIALIZER = 'json' CELERY_RESULT_SERIALIZER = 'json' My Procfile reads: web: gunicorn project_settings.wsgi --log-file - worker: celery -A project_settings worker --beat -
Archive records and re-inserting new records in Django?
I've got a Stock table and a StockArchive table. My Stock table consists of roughly that 10000 stocks that I update daily. The reason I have a StockArchive table is because I still wanna some historic data and not just update existing records. My question is, is this a proper way of doing it? First, my models: class Stock(models.Model): objects = BulkUpdateOrCreateQuerySet.as_manager() stock = models.CharField(max_length=200) ticker = models.CharField(max_length=200) exchange = models.ForeignKey(Exchange, on_delete=models.DO_NOTHING) eod_price = models.DecimalField(max_digits=12, decimal_places=4) currency = models.CharField(max_length=20, blank=True, null=True) last_modified = models.DateTimeField(blank=True, null=True) class Meta: db_table = "stock" class StockArchive(models.Model): objects = BulkUpdateOrCreateQuerySet.as_manager() stock = models.ForeignKey(Stock, on_delete=models.DO_NOTHING) eod_price = models.DecimalField(max_digits=12, decimal_places=4) archive_date = models.DateField() class Meta: db_table = "stock_archive" I proceed on doing the following: @transaction.atomic def my_func(): archive_stocks = [] batch_size = 100 old_stocks = Stock.objects.all() for stock in old_stocks: archive_stocks.append( StockArchive( stock=stock.stock, eod_price = stock.eod_price, archive_date = date.today(), ) ) # insert into stock archive table StockArchive.objects.bulk_create(archive_stocks, batch_size) # delete stock table Stock.objects.all().delete() # proceed to bulk_insert new stocks I also wrapped the function with a @transaction.atomic to make sure that everything is committed and not just one of the transactions. Is my thought process correct, or should I do something differently? Perhaps more efficient? -
Reverse for 'new-quiz' with arguments '(11, '')' not found. 1 pattern(s) tried: ['course/(?P<course_id>[^/]+)/(?P<module_id>[^/]+)/quiz/newquiz$']
here is my code views.py from django.shortcuts import render, redirect, get_object_or_404 from django.contrib.auth.decorators import login_required from django.http import HttpResponseForbidden from quiz.forms import NewQuizForm, NewQuestionForm from quiz.models import Answer, Question, Quizzes, Attempter, Attempt from courses.models import Module from completion.models import Completion # Create your views here. def NewQuiz(request, course_id, module_id): user = request.user module = get_object_or_404(Module, id=module_id) if request.method == 'POST': form = NewQuizForm(request.POST) if form.is_valid(): title = form.cleaned_data.get('title') description = form.cleaned_data.get('description') due = form.cleaned_data.get('due') allowed_attempts = form.cleaned_data.get('allowed_attempts') time_limit_mins = form.cleaned_data.get('time_limit_mins') quiz = Quizzes.objects.create(user=user, title=title, description=description, due=due, allowed_attempts=allowed_attempts, time_limit_mins=time_limit_mins) module.quizzes.add(quiz) module.save() return redirect('new-question', course_id=course_id, module_id=module_id, quiz_id=quiz.id) else: form = NewQuizForm() context = { 'form': form, } return render(request, 'quiz/newquiz.html', context) def NewQuestion(request, course_id, module_id, quiz_id): user = request.user quiz = get_object_or_404(Quizzes, id=quiz_id) if request.method == 'POST': form = NewQuestionForm(request.POST) if form.is_valid(): question_text = form.cleaned_data.get('question_text') points = form.cleaned_data.get('points') answer_text = request.POST.getlist('answer_text') is_correct = request.POST.getlist('is_correct') question = Question.objects.create(question_text=question_text, user=user, points=points) for a, c in zip(answer_text, is_correct): answer = Answer.objects.create(answer_text=a, is_correct=c, user=user) question.answers.add(answer) question.save() quiz.questions.add(question) quiz.save() return redirect('new-question', course_id=course_id, module_id=module_id, quiz_id=quiz.id) else: form = NewQuestionForm() context = { 'form': form, } return render(request, 'quiz/newquestion.html', context) def QuizDetail(request, course_id, module_id, quiz_id): user = request.user quiz = get_object_or_404(Quizzes, id=quiz_id) my_attempts = Attempter.objects.filter(quiz=quiz, user=user) context = { … -
Django smart selects chain 2 models with country list that is not its own model
I have 3 models CompanyRole, Office and extended user model - and have successfully implemented django smart selects package and have created a ChainedForeignKey select from Office to CompanyRole. CompanyRole model having records employee and freelance and Office model having the office name and companyrole field for employee only - this works as expected as in dropdown for companyrole user selects employee then in dropdown for offcies will be populated but if freelance selected from company role dropdown then nothing will be populated in office dropdown. However, I also have a field in user model called location and country field in office model which populates a country list from django_countries package so did not have to create a model for countries. Please see my models.py file below: models.py from django.db import models from django.utils.translation import gettext_lazy as _ from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin, BaseUserManager from django_countries.fields import CountryField from smart_selects.db_fields import ChainedForeignKey class CompanyRole(models.Model): name = models.CharField(max_length=30) def __str__(self): return self.name class Office(models.Model): company_role = models.ForeignKey(CompanyRole, on_delete=models.CASCADE) country = CountryField(null=True) name = models.CharField(max_length=30) def __str__(self): return self.name class User(AbstractBaseUser, PermissionsMixin): email = models.EmailField(_('email address'), unique=True) username = models.CharField(max_length=150, unique=True) first_name = models.CharField(max_length=150) last_name = models.CharField(max_length=150) start_date = models.DateTimeField(default=timezone.now) comments = …
