Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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if and elif doesn't work in template django
if and elif doesn't work in my template django index.html <a style="{% if show.Ages == 19 %}background:#ff3636;{% elif show.Ages == 17 %}background:#fb9c92;{% elif show.Ages == 13 %}background:#ffb466;{% else %}background:#4aff68;{% endif %};border-radius: 15px;width: 140px;height: 42;margin-right: 831px;margin-top: -200;" class="button">رده سنی:+{{ show.Ages }}</a> views.py def index(request): shows = show.objects.all() context = { 'shows':shows } return render(request,'index.html', context) models.py class show(models.Model): Ages = models.CharField(max_length=10,default='',null=True) what is the problem? -
Correctly wiring volumes for serving static files using nginx and Django
I am having issues correctly linking up the different parts of the application to correctly serve static files to users. This is the scenario: I have an existing Django website that I want to "dockerize". My problem is probably that I'm very confused as to how volumes/containers work, and I've tried to read up about it but I cannot get it working. I have created the following directory structure: project/ nginx/ Dockerfile nginx.conf web/ << django website >> Dockerfile docker-compose.yml project/docker-compose.yml deploys the Django application and, via Gunicorn, makes it available at 0.0.0.0:8080, albeit without being able to load static files. The project/web/Dockerfile runs a collectstatic operation on the Django app and collects all static files in /usr/src/app/static_files. By running a bash shell on the web container I have confirmed that these files are indeed here. version: '3.3' services: web: restart: always build: ./web expose: - "8080" ports: - "8080:8080" volumes: ## something goes here? command: /usr/local/bin/gunicorn wsgi:application --workers 2 --bind 0.0.0.0:8080 depends_on: - postgres nginx: restart: always build: ./nginx ports: - "80:80" volumes: ### something goes here? depends_on: - web postgres: image: postgres:9.2 restart: always volumes: - pgdata:/var/lib/postgresql/data ports: - "5432:5432" volumes: pgdata: How do I modify the docker-compose … -
creating relationship between two apps in django
I have a post and a category app in my django project. I have user authentication and users can create categories as well as posts. I am at a point where I am out of ideas and help would be appreciated. I want users to be able to reference only their own category and create posts in their categories not in another persons own. That is if a user creates more that one category he should be able to select from the list of his created category and not see another persons own. category model class Category(models.Model): name = models.CharField(max_length = 120) slug = models.SlugField(unique= True) timestamp = models.DateTimeField(auto_now=False, auto_now_add=True) post model class Post(models.Model): user = models.ForeignKey(settings.AUTH_USER_MODEL, default=1,related_name='posts_created') #blank=True, null=True) title = models.CharField(max_length = 120) slug = models.SlugField(unique= True) category = models.ForeignKey(Category, on_delete=models.CASCADE, related_name='category_created', null= True) addition codes would be provided immediately on request. Thanks -
How to insert data into database overwriting the header in Django
Not sure whether the title is correct but I'll show you an example: I have the django model: class testDb(models.Model): date = models.DateField(verbose_name="Date") hour_1 = models.CharField( max_length=5, verbose_name="Hour_1" ) hour_2 = models.CharField( max_length=5, verbose_name="Hour_2" ) hour_3 = models.CharField( max_length=5, verbose_name="Hour_3" ) hour_4 = models.CharField( max_length=5, verbose_name="Hour_4" ) hour_5 = models.CharField( max_length=5, verbose_name="Hour_5" ) def __str__(self): return str( self.date ) And all what I want to do is insert data into this table based on current hour, for an instance: currentHour = '4' b = testDb(data=Today, hour_currentHour='23') b.save() Was trying to find solution using Google but unsuccessfully. Thanks in advance, -
custom Django Rest Framework json output format(CBV)
What do I want? For Success: { "data": { "id": 123, "name": "Django" } } For Errors (serializer errors or other exceptions): { "error": { "name": ["this field is required"] } } My Code: renderer_classes = [CustomJSONRenderer] # adds 'data' key def get_exception_handler(self) return custom_exception # adds 'error' key to output for errors My Output: for Success: (Good) { "data": { "id": 123, "name": "Django" } } For Error: (Wrong) { "data": { # Remove this key "error": { # this should be first key for output "name": ["This field required"] } } } -
Twisted-Python run python application with twistd -y chatserver.py, error occurs
when running this command-line twistd -y chatserver.py I get this error Traceback (most recent call last): File "/usr/local/bin/twistd", line 7, in <module> import _preamble ImportError: No module named '_preamble' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/usr/local/bin/twistd", line 9, in <module> sys.exc_clear() AttributeError: module 'sys' has no attribute 'exc_clear' what should I do. -
Django pre_save is not triggered
I'm creating an instance of a model (Container), and it seems like the pre_save function is not triggered. This is the class in the 'signals': class ContainerCreatedMixin(object): @staticmethod @receiver(pre_save, sender=Container) def container_pre_save(sender, instance, **kwargs): # create container folder if not created yet if instance.folder_created_at is None: is_folder_created = ContainerCreatedMixin().create_folder(instance) if is_folder_created: instance.folder_created_at = now() def create_virtual_folder(self, container): try: ...... -
Askbot - a Django Q&A forum platform
export var UserSchema: Schema = new mongoose.Schema( { createdAt: Date, email: { type: String, required: true, trim: true, unique: false, }, firstName: { type: String, required: false, trim: true }, lastName: { type: String, required: false, trim: true }, password: { type: String, trim: true, minlength: 6 }, tokens: [{ access: { type: String, required: true }, token: { type: String, required: true } }] }); and I've a instance method like: UserSchema.methods.generateAuthToken = () => { console.log("generateAuthToken"); var user = this; console.log(user); var access = 'auth'; console.log(user._id); }; Askbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a Django Q&A forum platformAskbot - a … -
Redirection issue using django
I have an issue, I do not know why it is happening and how to solve it; My app ask a user to create a project and is redirect directly to the project detail page. On that detail page if a team_id is empty I ask the user to create a team and when the team is created the user is redirected again to the project detail page to now be able to populate his team. I used the code {% if Project.team_id == None %} when the user is redirected after creating his team but it is not working .. could you please help ? my html: {% extends 'base.html' %} {% block body %} <div class="container"> <div class="jumbotron"> <h2>Welcome to your Project {{ project.name }} Detail page</h2> </div> {% if Project.team_id == None %} <div class="invite-team"> <div class="jumbotron"> <div class="jumbo-text"> <h3>It is time to link a team to your project now create a new team and add team members</h3> </div> <div class="jumbo-button"> <a href="{% url 'website:add_team' %}" class="btn btn-success" role="button"><span class="glyphicon glyphicon-plus"></span> Create a new team</a> </div> </div> {% else %} <div class="invite-teammembers"> <div class="jumbotron"> <div class="jumbo-text"> <h3>The team {{ project.team_id }} has beed created, we now need … -
How to over ride save button to get inline object in django admin?
I am quite new.How to over ride save button to get inline object in django admin, just like in normal model save button in models.py file? -
How to prevent download of media(Videos, Photos) from a AWS s3 signed url?
I want to display photos and videos in my mobile/web app. I have used short lived signed urls to serve content privately. I want that a person should be able to only view the video in my apps and is not able to download the media even if he sniffs the signed url. -
Tables referencing each other with One-To-Many relationship
I have these 2 models in my django app. It's basically clone of IMDB. I have title and it has type field that defines if it's a film or TV Series. And if it's TV series it has many seasons. And many seasons have many titles as well. So I came up with this solution and it's working for the moment. But I don't know if it's the way to approach this. My models are here: class Title(models.Model): FILM = 'FL' TV_SERIES = 'TV' SHORT_FILM = 'SH' EPISODE = 'EP' name = models.CharField(max_length=255) description = models.TextField() release_date = models.DateField() duration = models.PositiveSmallIntegerField(blank=True, null=True) genres = models.ManyToManyField(Genre) type = models.CharField(max_length=2, choices=( (FILM, 'Film'), (TV_SERIES, 'TV Series'), (SHORT_FILM, 'Short Film'), (EPISODE, 'Episode')), default='FL') poster = models.ImageField(upload_to='posters/%Y/%m/%d', default='posters/Placeholder.png') cast = models.ManyToManyField(Person, through='crew') season = models.ForeignKey('Season', related_name='episodes', on_delete=models.CASCADE, blank=True, null=True) episode = models.PositiveSmallIntegerField(null=True, blank=True) @property def rating(self): return self.reviews.all().aggregate(Avg('rating'))['rating__avg'] or "0" @property def release_year(self): return self.release_date.year @property def genre_list(self): return ', '.join([genre.name for genre in self.genres.all()]) def __str__(self): return self.name class Meta: verbose_name_plural = 'Media' class Season(models.Model): name = models.CharField(max_length=100, null=True, blank=True) release_date = models.DateField() number = models.PositiveSmallIntegerField() title = models.ForeignKey(Media, related_name='seasons', on_delete=models.CASCADE, blank=True, null=True) def __str__(self): return "%s - Season %s" % (self.media.name, … -
client.send(channel_name, message) throw exception (Django, centrifugo)
@receiver(models.signals.post_save, sender=Order) def on_bonus_balance_updating(sender, instance, *args, **kwargs): if kwargs.get('created'): try: from core.serializers import OrderSerializer channel_name = "public:bonus_balance#" + str(instance.payer.pk) serializer = OrderSerializer(instance) message = serializer.data if instance.payment_method == 1: client = Client() client.publish(channel_name, message) print("lololo") response = client.send() print('sent to channel {}, got response from centrifugo: {}' .format(instance.get_cent_channel_name(), response)) except BaseException: print("Error in on_bonus_balance_updating payer!") In logs I see "lololo" and "Error in on_bonus_balance_updating payer!" So, only client.send() doesn't work. Message and channel_name are normal, I have checked it. I have not get idea what's is wrong. If you help me I will be very happy! -
how to serialize django.conf.settings to json
I am getting this error... Object of type 'Settings' is not JSON serializable Here is my code from django.conf import settings import json def get_settings(request): responce = settings.__dict__ return HttpResponse(json.dumps(responce),content_type='application/json') -
Django Rest Framework JWT "Authentication credentials were not provided."}
I am trying to write a simple API that uses JWT tokens to authenticate. My settings.py: INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'rest_framework', ] REST_FRAMEWORK = { 'DEFAULT_PERMISSION_CLASSES': ( 'rest_framework.permissions.IsAuthenticated', 'rest_framework.permissions.IsAdminUser' ), 'DEFAULT_AUTHENTICATION_CLASSES': ( 'rest_framework_jwt.authentication.JSONWebTokenAuthentication', 'rest_framework.authentication.SessionAuthentication', 'rest_framework.authentication.BasicAuthentication', ), 'PAGE_SIZE': 10 } And my View looks like this: class ExampleView(APIView): permission_classes = (IsAuthenticated,) authentication_classes = (JSONWebTokenAuthentication,) def get(self, request, format=None): return JsonResponse({"username":str(request.user)}) Which really does nothing, but I don't even get there. I have registered the JWT Token provider as in the documentation with url(r'^api-token-auth/', obtain_jwt_token) and I receive a token when I call this endpoint. However, when I then make a request against my APIView (which contains the header Authorization: JWT <my_token> I always receive the following error: [Response]: 403 [Data]: {"detail":"Authentication credentials were not provided."} What am I missing? Thanks in advance! -
Django ModelForm: Exclude a field which is not in Model
I am having hard time debugging this. I want to exclude confirm_password of RegModelForm in an extended modelform UpdateRegModelForm. I have tried to use exclude in the Meta class of UpdateRegModelForm but it seems to show confirm_password while rendering UpdateRegModelForm anyways. Not sure how to move forward. class RegModelForm(forms.ModelForm): org_admin_email = forms.CharField( label='If you know who should be the Admin, please add their email address below.' ' We\'ll send them an email inviting them to join the platform as the organization admin.', required=False, widget=forms.EmailInput(attrs=({'placeholder': 'Email'})) ) organization_name = forms.CharField( max_length=255, label='Organization Name', widget=forms.TextInput( attrs={'placeholder': 'Organization Name'} ) ) confirm_password = forms.CharField( label='Confirm Password', widget=forms.PasswordInput(attrs={'placeholder': 'Confirm Password'}) ) class Meta: model = ExtendedProfile fields = ( 'confirm_password', 'first_name', 'last_name', 'organization_name', 'is_currently_employed', 'is_poc', 'org_admin_email', ) labels = { 'is_currently_employed': "Check here if you're currently not employed.", 'is_poc': 'Are you the Admin of your organization?' } widgets = { 'first_name': forms.TextInput(attrs={'placeholder': 'First Name'}), 'last_name': forms.TextInput(attrs={'placeholder': 'Last Name'}), 'is_poc': forms.RadioSelect() } class UpdateRegModelForm(RegModelForm): class Meta(RegModelForm.Meta): exclude = ('confirm_password',) -
django uwsgi no module named site
First of all, I'm aware many related question exists but non of them solved my problem. I installed uwsgi using sudo pip3 install uwsgi on centOs 7 when my virtualenv is activated. I try to run it with command uwsgi --http :8000 --module ashpazi.wsgi --ini ../ini_files/ashpazi.ini I get this error ImportError: No module named site this is my ashpazi.ini file [uwsgi] chdir = /root/projects/ashpazi home = /root/projects/venv module = ashpazi.wsgi:application master = true processes = 5 uid = root gid = nginx env = DJANGO_SETTINGS_MODULE=ashpazi.settings plugin = python3.6 socket = /root/projects/sockets/ashapazi.sock chmod-socket = 777 vacuum = true Running which uwsgi returns /usr/bin/uwsgi which is not in virtualenv directory And running sudo pip3 show uwsgi will return this. Name: uWSGI Version: 2.0.15 Summary: The uWSGI server Home-page: https://uwsgi-docs.readthedocs.io/en/latest/ Author: Unbit Author-email: info@unbit.it License: GPL2 Location: /usr/lib/python2.7/site-packages which states that uwsgi is in python2.7 folder and not python3.6 I'm using in my django project. how can i solve this? -
data table pagination with django rest post api
I have a rest api generated by django rest framework which in fact a simple date range search api , given below, @api_view(['POST']) @permission_classes((StaffOnly,)) def ledger_detail(request): if request.method == 'POST': paginator = PageNumberPagination() paginator.page_size = 10 account = Account.objects.get(id=request.data['account']) transactions = account.transaction.filter( account=account, date_created__gte=request.data['start_date'], date_created__lte=request.data['end_date'], deleted=False ).order_by('date_created') result_page = paginator.paginate_queryset(transactions, request) serializer = TransactionSerializer(result_page, many=True) return paginator.get_paginated_response(serializer.data) and api generate below given data within a certain date range {"count":4,"next":null,"previous":null,"results":[{"id":5574,"account":"Cash","account_type":"0","transaction_type":"0","description":"Advance Unearned (Revenue)","amount":"1500.00","transaction_reference":null,"approved":true,"date_created":"2017-09-17T05:16:58Z","realized":false,"reference_id":"17090044","deleted":false,"deleted_by":null},{"id":5576,"account":"Cash","account_type":"0","transaction_type":"0","description":"Advance Unearned (Revenue)","amount":"100.00","transaction_reference":null,"approved":true,"date_created":"2017-09-17T05:18:18Z","realized":false,"reference_id":"17090044","deleted":false,"deleted_by":null},{"id":5593,"account":"Cash","account_type":"0","transaction_type":"0","description":"Room Sales Revenue","amount":"377.00","transaction_reference":null,"approved":true,"date_created":"2017-09-17T05:48:30Z","realized":false,"reference_id":"17090044","deleted":false,"deleted_by":null},{"id":5596,"account":"Cash","account_type":"0","transaction_type":"0","description":"Advance Unearned (Revenue)","amount":"3000.00","transaction_reference":null,"approved":true,"date_created":"2017-09-17T05:58:12Z","realized":false,"reference_id":"17090045","deleted":false,"deleted_by":null}]} and below is my jquery data table code which works fine if i remove pagination code part in my api <script type="text/javascript"> $(document).ready(function () { $("#question_form").off('submit').on('submit', function (e) { e.preventDefault(); var dtOption = { "columns": [ {"title": "Transaction Id", "data": "id"}, {"title": "Reference Id", "data": "reference_id"}, {"title": "Transaction Type", "data": "transaction_type"}, {"title": "Transaction Ref ID", "data": "transaction_reference"}, {"title": "Accounting Head", "data": "account"}, {"title": "description", "data": "description"}, {"title": "Amount", "data": "amount"}, {"title": "Balance", "data": "balance"}, {"title": "Date Created", "data": "date_created"} ], "destroy": true, "columnDefs": [ { render: function (data) { return (data == 0) ? "Debit" : "Credit" }, targets: 2 }, { targets: 8, render: function (data, a, b) { console.log(data); return moment(data).format('YYYY-MM-DD hh:mm A'); } } ] }; var table = $('#journal_list').DataTable(dtOption); … -
Changing Django login validation
I want to alter the login_required method but I do not get the method I have done, someone could help me, I try to validate because I have different types of users. Python 3.6.1 & Django 1.11 def login_dece(function): def _inner(request, *args, **kwargs): u = request.user actual_decorator = user_passes_test( u.is_authenticated and Dece.objects.filter(id=u.id).exists(), login_url=settings.LOGIN_URL, redirect_field_name=REDIRECT_FIELD_NAME ) if function: return actual_decorator(request, *args, **kwargs) return function(request, *args, **kwargs) return _inner url(r'^sgd$', login_dece(sys.sgd), name='sgd'), -
Django - get related objects
I have these models where one book can have many contents in different languages: class Book(models.Model): id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False) title = models.CharField(max_length=255) class BookContent(models.Model): id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False) book = models.ForeignKey(Book, on_delete=models.CASCADE) content = models.TextField() language = models.TextField() How should i fetch Book and its related BookContent? -
I am getting 'attribute error': 'module' object has no attribute 'split_stopwords' in django-python application
Please do not mark this question as 'duplicate'. I have tried all other solutions but still I am getting this error. Hello friends, I am developing a sms spam checker web application using django-python in Pycharm. I am getting 'attribute error'. When I run this program on Terminal it's working fine, but when I run this program on pycharm I am getting this error. Can anyone answer to this ? SmsSpamCheck.py file import nltk from nltk.corpus import stopwords from nltk.tokenize import wordpunct_tokenize import cPickle import csv import os import pandas as pd from django.shortcuts import render from sklearn.cross_validation import StratifiedKFold, train_test_split from sklearn.feature_extraction.text import CountVectorizer, TfidfTransformer from sklearn.grid_search import GridSearchCV from sklearn.metrics import classification_report, confusion_matrix from sklearn.naive_bayes import MultinomialNB from sklearn.pipeline import Pipeline from sklearn.svm import SVC from textblob import TextBlob from spamchecker.models import TextEntry # add path to NLTK file #STOP = set(stopwords.words('english')) nltk.data.path.append('nltk_data') # load stopwords stopwords = set(stopwords.words('english')) SPAMMESSAGES = pd.read_csv('/home/gaurav/PycharmProjects/spamchecker/spamchecker/SMSSpamCollection', sep='\t',quoting=csv.QUOTE_NONE, names=["label", "message"]) # Preprocessing def split_tokens(message): message = unicode(message, 'utf8') return TextBlob(message).words def split_lemmas(message): message = unicode(message, 'utf8').lower() words = TextBlob(message).words return [word.lemma for word in words] def split_stopwords(message): message = unicode(message, 'utf8').lower() words = TextBlob(message).words return [word.lemma for word in words if word not … -
flow based visualization - drag and drop elements for workflow with ports and nodes
Can web apps like the below ( Azure ML studio ) be created if using flask/django with Python. -
Using Django "now" template tag to compare dates
I have a template tag that returns a date from a model field. If the date is today, I want to render some other content. Using the "now" builtin-templatetag: https://docs.djangoproject.com/en/1.11/ref/templates/builtins/#now, I used logic similar to the answer in this previously posted answer: https://stackoverflow.com/a/34959070/5616606 {% now "Y-m-d" as todays %} {% if self.date|date:"Y-m-d" == todays %} ...add some content {% endif %} I am trying to do this without creating a custom filter, context processor or edit the view. The problem, I believe, is with the timezone. This works until later in the evening when "now" returns the next day, instead of the current day. I researched Django's date and timezone documentation but am not sure how make the timezone returned from "now" match the timezone of the model field without having to create a context processor or edit the view -
Prevent the Repetition of Data in Database
Here's the code in view, def index(request): data = Model.objects.create(user=request.user, timestamp=timezone.now()) Whenever the view is requested i'm saving the user requesting it & the timestamp at which user has requested the page. But, It's repeating the same data in database with updated timestamp. How can I prevent the repetition by updating the same model when the view in requested? Please helpme! -
Django filter choices in ForeignKey field in a ModelForm
How can I filter the options shown for a ForeignKey field in a Model Form? I tried to follow this thread How do I filter ForeignKey choices in a Django ModelForm? but I'm pretty new to Django and I got very confused. I have an app for Users (with a UserManager/AbstractUser models, not relevant) Another app for: Products, with product_id and product name, Purchases, with product_id and user_id. Another app for Tickets, with a form to open a ticket. In that form I want to show only the products that the user has bought, so the user can only open a ticket for the products he has. Code below, I've removed non relevant fields, etc. Ticket Model class Ticket(models.Model): ... user = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='tickets') product = models.ForeignKey('products.Product', related_name='tickets') Ticket ModelForm class TicketForm(forms.ModelForm): class Meta: model = Ticket fields = ['subject', 'reason', 'product'] Product & Purchase Models class Product(models.Model): name = models.CharField(max_length=100, default="") ... class Purchase (models.Model): user = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='purchases') product = models.ForeignKey(Product) ... New Ticket Form view def new_ticket(request): if request.method=='POST': ticket_form = TicketForm(request.POST) ... if ticket_form.is_valid() and comment_form.is_valid(): ticket = ticket_form.save(False) ticket.user = request.user ticket.save() ... return redirect(reverse('ticket-detail', args={ticket.pk})) else: ticket_form = TicketForm() args={'ticket_form':ticket_form} args.update(csrf(request)) return render(request, 'tickets/ticket_form.html',args) …
