Django community: Django Q&A RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Is the Gzip Middleware vulnerable to BREACH?
From the Django official documentation I found this. Please explain me how to use GZIP compression safely in my application. GZIP Middleware Warning -
Django: how to capture values in request from form without POST method
I've succesfully created a token using a javascript library called Culqipy. They also have a python library for doing this, called Culqipy. And I would like to use it for creating the payment record. Problem: Their JS code renders a form without "POST" method. So I don't know how to capture it's values in request, and after that calling it's values like: token = request.POST['token'] If it had a POST method I could do something like: if request.method == 'POST': print ("StripToken:") print(request.POST) try: token = request.POST['stripeToken'] email = request.POST['stripeEmail'] print("This is the token: " + token) print("This is the user's email: " + email) customer = stripe.Customer.create( email = email, source = token ) charge = stripe.Charge.create( amount = stripe_total, currency = "pen", description = description, customer = customer.id, ) except stripe.error.CardError as e: return False, e JS that on click renders the form: <script> $('#buyButton').on('click', function (e) { // Abre el formulario con la configuración en Culqi.settings Culqi.open(); e.preventDefault(); }); </script> Form's HTML: <form class="form"> <div class="form-row"> <div class="col col-12"><div class="form-group"> <div class="input"> <input name="cardNumber" autocomplete="cc-number" type="tel" maxlength="19" class="input-card" data-mask="#### #### #### ####" data-previous-value=""> </div> <label for="cardNumber" class="">Número de Tarjeta</label> <div class="brand"></div></div></div></div> <div class="form-row"><div class="col col-6"> <div class="form-group"><div ... -
The 'photo' attribute has no file associated with it?
I have three fields in my model: photo, name and encodings. I get photo and name from form and after proccesing this photo I get encodings. But when I try to edit name using Django admin page I get "The 'photo' attribute has no file associated with it" My model: class Staff(models.Model): photo = models.FileField(blank=True) encodings = JSONField() name = models.CharField() ... def save(self, *args, **kwargs): if self.photo is None: super(Staff, self).save(*args, **kwargs) else: self.encodings = self.get_encodings() self.photo = None super(Staff, self).save(*args, **kwargs) -
django-admin --version syntax error in windows command prompt
I have installed Django latest version i.e 2.1 on my pc and also updated my currently installed python version from 3.5.rc1 to 3.7.1. But still command 'Django-admin --version' giving error- Traceback (most recent call last): File "C:\Python34\lib\runpy.py", line 170, in _run_module_as_main "main", mod_spec) File "C:\Python34\lib\runpy.py", line 85, in _run_code exec(code, run_globals) File "C:\Python34\Scripts\django-admin.exe__main__.py", line 5, in File "C:\Python34\lib\site-packages\django\core\management__init__.py", from django.conf import settings File "C:\Python34\lib\site-packages\django\conf__init__.py", line 18, in from django.utils.functional import LazyObject, empty File "C:\Python34\lib\site-packages\django\utils\functional.py", line 12 return _curried_func(*args, *moreargs, **{**kwargs, **morekwargs}) -
how to open template with button click
I want to open another template like "booking" in following example by clicking. projectforms bookingform urls templates index.html projectforms urls bookingform.urls urlpatterns = [ path('' , views.purchasing_view, name="purchasing"), path('',views.add_model, name="booking"), path('' , views.payment_view, name="payment"), path('' , views.payment_view, name="payroll"), ] projectforms.urls from bookingform.views import add_model, purchasing_view,payment_view,payroll_view,index_view urlpatterns = [ path('admin/', admin.site.urls), path('', index_view), path('booking/',add_model), path('purchasing/', purchasing_view), path('payments/', payment_view), path('payroll/', payroll_view), ] How to call "booking" url with following button. <a class="btn">Booking</a> -
running javascript in a nested component-like django partial template
I would like to make a "component" (several actually, but let us start with one). That is I would like to have a template file, which itself may include javascript. Then I would like to be able to include that "component" in whatever (other) Django template file. Importantly: in the base.html I include utility javascript (like jquery or bootstrap or whatever) and I want those things to be in scope in the component's javascript. Here is a visual of one Django template: and when an item is clicked, it will update the other part of the page, allowing that template and its included JS to run with access to the rest of the page's javascript. Here is some coe to go along with it (i mistyped base to baste, so I went with the theme): models.py class CommonTask(models.Model): ## nothing special name = models.CharField(max_length=30, default='yummy') urls.py app_name = 'food' urlpatterns = [ ## the list view on the left url(r'^edible/?', views.EdibleList.as_view(), name='edible'), ## the partial on the right url(r'^billable/edit/(?P<jid>[a-zA-Z0-9-\w:]+)/?', views.EdibleEdit.as_view(), name='edibleEdit'), views.py class EdibleList(ListView): template_name = 'food/edible-list.html' def get_queryset(self): return Dish.objects.filter('edible'=True) class EdibleEdit(UpdateView): form_class = EdibleForm template_name = 'food/edible-edit.html' def get_initial(self): … # for the form/formset info def get_object(self): return ... -
Python - Django - Heavy lifting in C++
Currently i have to deal with a architectural problem. My task is to solve some big image processing issues and somehow expose the evaluated data, e.g. as json. So what i thought of: Create a application which does the heavy lifting(image processing, c++) and return its evaluated data in json format Create a webapp(e.g. Django) which calls this c++ app and exposes the returned data in json as well. This webapp would kind of act as a gateway to the world(www). In the next step anybody could access the webapp and display the data according to rest api defined in the webapp. What do you think of it in general? Do you know better ways to solve this kind of problems? What are your preferred architectures? Thanks and Greetings! -
Django: passing a foreign key to an admin add form
I have a model that I want to maintain in my admin site only as a child of another model and not directly via its own changelist. It has too many fields to maintain sensibly in an inline, so I'm trying to add new instances via a link to the add form from the parent model's admin. So I have: ### models.py class A(models.Model): # class A's stuff class B(models.Model): fk_a = models.ForeignKey(A) # etc. ### admin.py class BInline(admin.TabularInline): model = AreaMeetingOfficeHeld show_change_link = True extra = 0 max_num = 0 # to suppress inline "add another" fields = (<SUBSET_OF_FIELDS>) # ... etc @admin.register(A) class AAdmin(admin.ModelAdmin): inlines = (BInline,) # ... etc ### templates/admin/myapp/a/change_form.html {% extends "admin/change_form.html" %} {% block object-tools %} {% if has_change_permission %} <a href="{% url 'admin:myapp_b_add'%}?fk_a_id={{original.pk}}"> </i>Add B </a> {% endif %} {% endblock %} ... so far so good. The link is correct, the add form for B is instantiated. As far as I can see from delving through stack traces and debug-by-print-statement it sees fk_a.id in its initial data. But then does nothing with it: the correct instance of A is neither displayed nor saved. What am I missing here? I assume I need ... -
Twiiter, Webhooks, and Django CRC Check --> 'str' object has no attribute 'xframe_options_exempt'
I am using Django for my webapp and have adapted the tutorial @ https://developer.twitter.com/en/docs/accounts-and-users/subscribe-account-activity/guides/securing-webhooks to run in Python 3 however I am running into this problem in my views from django.shortcuts import render from django.http import HttpResponse, HttpRequest import base64, hashlib, hmac, json from django.views.decorators.csrf import csrf_exempt from django.views.decorators.clickjacking import xframe_options_exempt from django.views.decorators.http import require_GET @csrf_exempt @xframe_options_exempt def twitter_webhook(request): msg = request.GET.get('crc_token') msg_bytes = msg.encode() sha256_hash_digest = hmac.new(b'bEfpTIneaRBaVqHiev4S271m1F7mYX9Th9QhzjkCpLeF2Ga6HH', msg_bytes, digestmod=hashlib.sha256).digest() resp = 'sha256=' + str(sha256_hash_digest) twitter_response = { 'response_token': resp } return json.dumps(twitter_response) 'str' object has no attribute 'xframe_options_exempt' Using pycharm I have debugged step by step through my code and it all works fine returning the appropriate hash up until the point it gets caught by clickjacking middleware. Request Method: GET Request URL: http://127.0.0.1:8000/twitter?crc_token=1230983450923485 Django Version: 2.1.4 Exception Type: AttributeError Exception Value: 'str' object has no attribute 'xframe_options_exempt' Exception Location: C:\Users\micha\AppData\Local\Programs\Python\Python37\lib\site- packages\django\views\decorators\clickjacking.py in wrapped_view, line 51 Python Executable: C:\Users\micha\AppData\Local\Programs\Python\Python37\python.exe Python Version: 3.7.1 Python Path: ['C:\\Users\\micha\\Documents\\Projects\\sinclaire_webhooks', 'C:\\Program Files\\JetBrains\\PyCharm 2018.3.1\\helpers\\pydev', 'C:\\Users\\micha\\Documents\\Projects\\sinclaire_webhooks', 'C:\\Program Files\\JetBrains\\PyCharm ' '2018.3.1\\helpers\\third_party\\thriftpy', 'C:\\Program Files\\JetBrains\\PyCharm 2018.3.1\\helpers\\pydev', 'C:\\Users\\micha\\.PyCharm2018.3\\system\\cythonExtensions', 'C:\\Users\\micha\\AppData\\Local\\Programs\\Python\\Python37\\python37.zip', 'C:\\Users\\micha\\AppData\\Local\\Programs\\Python\\Python37\\DLLs', 'C:\\Users\\micha\\AppData\\Local\\Programs\\Python\\Python37\\lib', 'C:\\Users\\micha\\AppData\\Local\\Programs\\Python\\Python37', 'C:\\Users\\micha\\AppData\\Local\\Programs\\Python\\Python37\\lib\\site- packages', 'C:\\Program Files\\JetBrains\\PyCharm ' '2018.3.1\\helpers\\pycharm_matplotlib_backend'] Server time: Sun, 16 Dec 2018 17:58:20 +0000 I have searched and can not find anything definitive to lead me towards a ... -
Django created_at__gt=self.request.user.last_login workinly only on users already signed in.
Intro: I have a 3 models user, post, group. User is able to make posts however each post has to belong to a group. Users have to choose from the existing groups for their posts. Users cannot add, delete, update group's. Furthermore: Users can become a member of groups and when they click on a certain group. They see all the posts in that group. What I want When Users come on the home page they see posts that were added since the last time they logged in My Models class Post(models.Model): user = models.ForeignKey(User, related_name='posts') group = models.ForeignKey(Group, related_name='posts') title = models.CharField(max_length=250, unique=True) message = models.TextField() created_at = models.DateTimeField(auto_now=True) My Views class Homepage(TemplateView): template_name = 'home.html' def get_context_data(self, **kwargs): context = super(Homepage, self).get_context_data(**kwargs) if self.request.user.is_authenticated(): context['object_list'] = Group.objects.filter(members=self.request.user) #What am I doing wrong in the below code new_posts = Post.objects.filter(created_at__gt=self.request.user.last_login).count() context['new_posts'] = new_posts else: context['object_list'] = Group.objects.all() return context In my templates I have <div class="list-group"> {% for group in object_list %} {% if not new_posts %} {{group.post.count}} {% else %} {{new_posts}} {% endif %} {% endfor %} </div> The Issue: Only the users who are already signed in and refresh their page see the new posts example:4 new, ... -
Django model configuration for dynamic attributes
I have been trying to figure out the best way (or correct) way to set up models for our PIM/PriceModel app in Django. Example models (stripped): class ProductItem(models.Model): """ An actual item/product, what it all revolves around. """ part_number = models.CharField(unique=True, max_length=50, help_text='') internal_part_number = models.CharField(primary_key=True, max_length=50, help_text='') # prefilled by partnumber type = models.ForeignKey('Type', null=True, on_delete=models.SET_NULL) attributes = HStoreField(db_index=True) # and more .... class Type(models.Model): """ Product type i.e. camera-dome, camera-bullet, pir, etc. """ pass class Segment(models.Model): """ A segment of the company like Industry, Retail, Guarding etc. """ pass class ProductCategory(models.Model): """ Supposedly a child category of TopCategory. """ pass class InstallPrice(models.Model): """ Product item installation prices based on Type, Product Category and Segment. """ install_price = models.DecimalField(max_digits=8, decimal_places=2, help_text='') type = models.ForeignKey('Type', null=True, on_delete=models.SET_NULL) product_category = models.ForeignKey('ProductCategory', null=True, on_delete=models.SET_NULL) segment = models.ForeignKey('Segment', null=True, on_delete=models.SET_NULL) Take a look at "attributes = HStoreField(db_index=True)" in the ProductItem model. The main thing i need to store in a product item is attributes like how many inputs/outputs/connection-options does it have. I need to store this for testing products against each other further down the line in the price-model app. This to make sure you have the right amount of products with matching ... -
How to send signal from Oracle to Python-django
How can I send signal or execute python script if new record inserted in Oracle DB?Is it possible without triggers? How about Django signals function? -
Tablesorter stickyHeaders not aligning with table column
My table header is not aligning with my table column. On the left side of the table, I have a navigation sidebar that the table header somehow failed to recognize after scrolling past the original header (see pics below): I tried wrapping the table in a parent div with the position set to relative, but the table header still doesn't behave correctly (see codes below): {% load static %} <link rel="stylesheet" href="{% static 'css/theme.default.css' %}" type="text/css" /> <script type="text/javascript" src="{% static 'js/jquery.js' %}"></script> <script type="text/javascript" src="{% static 'js/jquery.tablesorter.js' %}"></script> <script type="text/javascript" src="{% static 'js/jquery.tablesorter.widgets.js' %}"></script> <div id="tableWrap" style="position:relative;"> <table id="myTable" class="tablesorter"> <caption> ... </caption> <thead> <tr> ... </tr> </thead> <tbody> <tr> ... </tr> </tbody> </table> </div> <script> $(document).ready(function(){ $('#myTable').tablesorter({ sortList: [[0,0], [1,0]], widgets: ['zebra', 'filter', 'stickyHeaders'], widgetOptions: { stickyHeaders_attachTo: '#tableWrap' }, }); }); </script> -
how to update two models with a serializer update function
I have teacher and conversation models in my project and a rate function that is a POST API with teacherId and rate as input. Teachers have phone field as an ID. When the rate function called, the teacher's rate and raters fields and the conversation's isRated field must change. how is it possible to update two models in one serializer? here is my Conversation model: class Conversation(models.Model): isRated = models.BooleanField(null=False, default=False) here is my Teacher model: class TeacherUsers(models.Model): phone = models.IntegerField(unique=True, null=False, default=0) rate = models.FloatField(null=True, default=0) raters = models.IntegerField(unique=True, null=False, default=0) and the serializer that updates teacher's rate only: class RateSerializer(serializers.Serializer): teacherId = serializers.IntegerField(required=True) rate = serializers.IntegerField(required=False) def update(self, instance, validated_data): instance.rate = validated_data['rate'] instance.raters = validated_data['raters'] instance.save() return instance -
Changing the ForeignKey based on choices
I'm trying to create a Model that has a field with choices like: MANUFACTURER_CHOICES = ( ('Commscope', 'Commscope'), ('Corning', 'Corning'), ('SOLiD', 'SOLiD'), ('Cisco', 'Cisco'), ('DIGI', 'DIGI') ) manufacturer = models.CharField( max_length=9, choices=MANUFACTURER_CHOICES ) But I want the choice to actually be a ForeignKey, impacting the data and fields that are being referenced. i.e. If Commscope is picked, it attaches the Commscope Model to the Device Model. If Cisco is picked, the Cisco Model and so on and so forth. -
Python send an email passing variable value to html
In my project i have to send an email and pass a value into html code. I try this: l_sender = [] l_sender.append('mario.rossi@test.com') emailsend(l_sender) def emailsend(l_sender): context = { 'news': 'We have good news!' } try: send_html_email(l_sender, 'Get started with Aida', 'email.html', context, sender='wepredict@cathedral.ai') print("Email send") except Exception as e: print(e) in email.html i insert {{ context.news }} but nothing appen. How can i pass my news val value in mail.html? Thanks in advance -
Using list() in my DRF view raises AttributeError
Wanted to convert my dictionary into a list inside of a django rest framework view using the list() built-in, but it raises AttributeError: 'dict_keys' object has no attribute 'META'. Same if I try .values() or .items(). The error persists whether I put the dictionary in the def list method, or overwrite the __init__ and put it there. Identical code outside of django seems to work fine, so what's going on here? Does it have something to do with the DRF method being named 'list'? Here is the simplified version that raises the error: class SomeViewSet(viewsets.ViewSet): some_dict = { 'key1': 'value1', 'key2': 'value2' } def list(self, request, format=None): print(list(self.some_dict.keys())) return Response(some_response()) And this works fine: class SomeViewSet(viewsets.ViewSet): some_dict = { 'key1': 'value1', 'key2': 'value2' } def list(self, request, format=None): print(self.some_dict.keys()) return Response(some_response()) Using [] instead of list() works, but it just puts the view object inside a list instead of converting it into one, so that's no good. Traceback: Traceback (most recent call last): File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\utils\autoreload.py", line 225, in wrapper fn(*args, **kwargs) File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\core\management\commands\runserver.py", line 117, in inner_run self.check(display_num_errors=True) File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\core\management\base.py", line 379, in check include_deployment_checks=include_deployment_checks, File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\core\management\base.py", line 366, in _run_checks return checks.run_checks(**kwargs) File "C:\Users\FluffyAdmin\.virtualenvs\MapPoolApp-gFHC46op\lib\site-packages\django\core\checks\registry.py", line 71, in run_checks new_errors ... -
DRF return token at user registration
I've made a LoginViewSet which returns the token if authentication goes fine but I want to return the token at Registration time also: class TodoUserViewSet(ModelViewSet): http_method_names = ['POST','PUT'] serializer_class = TodoUserSerializer queryset = TodoUser.objects.all() authentication_classes = (TokenAuthentication,) permission_classes = (UpdateOwnProfile,) class LoginViewSet(ViewSet): serializer_class = AuthTokenSerializer def create(self, request): return ObtainAuthToken().post(request) -
no such table: main.auth_user__old
I ran this commnad and there was no problem python manage.py makemigrations python manage.py migrate then I ran and did as username, email and password: python manage.py createsuperuser but when I went to admin panel and try new content and I got this error: OperationalError at /admin/..../..../add/ no such table: main.auth_user__old Django version 2.1.4 Python version 3.7 -
Django doesn't find allauth
Hello Ladies and Gents I have a venv for a project called manager. I installed allauth on venv but I get this error: ImportError: No module named 'allauth' pip freeze: (manager) user@host:~/manager$ pip freeze certifi==2018.11.29 chardet==3.0.4 defusedxml==0.5.0 Django==2.1.4 django-allauth==0.38.0 django-crispy-forms==1.7.2 idna==2.8 oauthlib==2.1.0 python3-openid==3.1.0 pytz==2018.7 requests==2.21.0 requests-oauthlib==1.0.0 urllib3==1.24.1 (manager) reiser@assets:~/manager$ pip freeze certifi==2018.11.29 chardet==3.0.4 defusedxml==0.5.0 Django==2.1.4 django-allauth==0.38.0 django-crispy-forms==1.7.2 idna==2.8 oauthlib==2.1.0 python3-openid==3.1.0 pytz==2018.7 requests==2.21.0 requests-oauthlib==1.0.0 urllib3==1.24.1 settings.py INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'invoices', 'feedback', 'crispy_forms', 'django.contrib.sites', 'allauth', 'allauth.account', 'allauth.socialaccount', ] django runserver error: user@host:~/manager/src$ python manage.py runserver Unhandled exception in thread started by <function check_errors.<locals>.wrapper at 0x7ff29b7c8d08> Traceback (most recent call last): File "/home/reiser/.local/lib/python3.5/site-packages/django/utils/autoreload.py", line 225, in wrapper fn(*args, **kwargs) File "/home/reiser/.local/lib/python3.5/site-packages/django/core/management/commands/runserver.py", line 109, in inner_run autoreload.raise_last_exception() File "/home/reiser/.local/lib/python3.5/site-packages/django/utils/autoreload.py", line 248, in raise_last_exception raise _exception[1] File "/home/reiser/.local/lib/python3.5/site-packages/django/core/management/__init__.py", line 337, in execute autoreload.check_errors(django.setup)() File "/home/reiser/.local/lib/python3.5/site-packages/django/utils/autoreload.py", line 225, in wrapper fn(*args, **kwargs) File "/home/reiser/.local/lib/python3.5/site-packages/django/__init__.py", line 24, in setup apps.populate(settings.INSTALLED_APPS) File "/home/reiser/.local/lib/python3.5/site-packages/django/apps/registry.py", line 89, in populate app_config = AppConfig.create(entry) File "/home/reiser/.local/lib/python3.5/site-packages/django/apps/config.py", line 90, in create module = import_module(entry) File "/usr/lib/python3.5/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 986, in _gcd_import File "<frozen importlib._bootstrap>", line 969, in _find_and_load File "<frozen importlib._bootstrap>", line 956, in _find_and_load_unlocked ImportError: No ... -
Error: navigator.getUserMedia error:NotReadableError: Could not start video source
I am trying to record a video in the web browser with an Android smartphone. I managed to get the code to work on the web browser in the local server but I am unsure why it isn't working when I access it from a smartphone. When accessing the page from my Android phone, I get the following error: navigator.getUserMedia error:NotReadableError: Could not start video source Following is my code: base.html {% load static %} <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"> <meta name="description" content="{% block metadescription %}{% endblock %}"> <link href="https://fonts.googleapis.com/css?family=Roboto" rel="stylesheet"> <title>{% block title %}{% endblock %}</title> </head> <body> <div class="container-fullwidth"> <div class="select"> <label for="audioSource">Audio source: </label><select id="audioSource"></select> </div> <div class="select"> <label for="videoSource">Video source: </label><select id="videoSource"></select> </div> <video id="gum" playsinline autoplay muted></video> <video id="recorded" playsinline loop></video> <div> <button id="start">Start camera</button> <button id="record" disabled>Start Recording</button> <button id="play" disabled>Play</button> <button id="download" disabled>Download</button> </div> <div> <h4>Media Stream Constraints options</h4> <p>Echo cancellation: <input type="checkbox" id="echoCancellation"></p> </div> <div> <span id="errorMsg"></span> </div> </div> <script> 'use strict'; /* globals MediaRecorder */ var audioSelect = document.querySelector('select#audioSource'); var videoSelect = document.querySelector('select#videoSource'); audioSelect.onchange = getStream; videoSelect.onchange = getStream; function gotDevices(deviceInfos) { for (var i = 0; i !== deviceInfos.length; ++i) { var deviceInfo ... -
Showing img in django admin
i was trying to show image in django admin. i try this code admin.py @admin.register(SampleImages) class CategoryAdmin(admin.ModelAdmin): readonly_fields = ['image_tag'] and for models.py class SampleImages(models.Model): image = models.ImageField(upload_to='images/tile_images') def image_tag(self): return mark_safe('<img src="{}" width="150" height="150"/>'.format(self.image)) image_tag.short_description = 'Image' but image is not showing, i inspect html and that fine. <img src="images/tile_images/150x150.gif" width="150" height="150"> in django admin when i click image url it say Sample images with ID "1/change/images/tile_images/150x150.gif" doesn't exist. Perhaps it was deleted? And image is present in my images/tile_images folder. Anyone can help please?. -
Django: Direct assignment to the reverse side of a related set is prohibited. Use username.set() instead
I have some troubles with migrating my database in django Traceback (most recent call last): File "manage.py", line 15, in <module> execute_from_command_line(sys.argv) File "E:\Env\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 381, in execute_from_command_line utility.execute() File "E:\Env\Python\Python37-32\lib\site-packages\django\core\management\__init__.py", line 375, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "E:\Env\Python\Python37-32\lib\site-packages\django\core\management\base.py", line 316, in run_from_argv self.execute(*args, **cmd_options) File "E:\Env\Python\Python37-32\lib\site-packages\django\core\management\base.py", line 350, in execute self.check() File "E:\Env\Python\Python37-32\lib\site-packages\django\core\management\base.py", line 379, in check include_deployment_checks=include_deployment_checks, File "E:\Env\Python\Python37-32\lib\site-packages\django\core\management\base.py", line 366, in _run_checks return checks.run_checks(**kwargs) File "E:\Env\Python\Python37-32\lib\site-packages\django\core\checks\registry.py", line 71, in run_checks new_errors = check(app_configs=app_configs) File "E:\Env\Python\Python37-32\lib\site-packages\django\contrib\auth\checks.py", line 74, in check_user_model if isinstance(cls().is_anonymous, MethodType): File "E:\Env\Python\Python37-32\lib\site-packages\django\db\models\base.py", line 470, in __init__ _setattr(self, field.attname, val) File "E:\Env\Python\Python37-32\lib\site-packages\django\db\models\fields\related_descriptors.py", line 537, in __set__ % self._get_set_deprecation_msg_params(), TypeError: Direct assignment to the reverse side of a related set is prohibited. Use username.set() instead. Here is my models.py: class PostComments(models.Model): post = models.ForeignKey(InfoPost, on_delete=models.CASCADE, related_name='comments') author = models.ForeignKey(User, on_delete=models.CASCADE, related_name="username") text = models.TextField() created_date = models.DateTimeField(default=timezone.now) #approved_comment = models.BooleanField(default=False) reply_to = models.ForeignKey("self", null=True, blank=True, on_delete=models.CASCADE, related_name='replies') #def __str__(self): return 'Comment by {} on {}'.format(self.name, self.post) I am trying to make comments system for post in my website, but there is some error occured. I don't know whats wrong with my model, but if i try to make migrations without my new PostComments model, its migrating pretty fine. -
Django Query: How to find all posts from people you follow
I'm currently building a website with the Django Framework. I want on the homepage of my website to display all posts made by people the user is following. Here are the classes for Profile, Story and Follow: class Profile(AbstractBaseUser, PermissionsMixin): email = models.EmailField(unique=True) first_name = models.CharField(max_length=30, null=True) last_name = models.CharField(max_length=30, null=True) class Follow(models.Model): following = models.ForeignKey('Profile', on_delete=models.CASCADE, related_name="following") follower = models.ForeignKey('Profile', on_delete=models.CASCADE, related_name="follower") follow_time = models.DateTimeField(auto_now=True) class Story(models.Model): author = models.ForeignKey('accounts.Profile', on_delete=models.CASCADE, related_name="author") title = models.CharField(max_length=50) content = models.TextField(max_length=10000) As you can see Follow uses two Foreign Keys to represent the following and the follower. Is there a way to query all stories from people the user is following? I really don't know what to filter. Or is this maybe a job for aggregation? If someone could help me, that would be awesome! following_feed = Story.object.filter(???).order_by('-creation_date') -
Django REST shows non-allowed methods under Allow in the Browser
Goal Is to disable OPTIONS method globally. Background According to the official Django REST docs (https://www.django-rest-framework.org/api-guide/metadata/), the proper way to do it is to set DEFAULT_METADATA_CLASS to None. This resolves the problem. After trying to send the OPTIONS curl request, the server responds with the 405. Problem However the API Browser would still show methods under Allow that are actually not allowed: Question How to hide not-supported methods under Allow in Django API Browser?
