Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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When I send message using WebSocket to the group, single user receives all the message instances
When some user send a message to some Group, only one (last connected) user receives all the message instances, but others receive nothing. A sends Message to Group with users A,B,C: C gets 3 message instances A gets nothing B gets nothing How can I solve this problem? #consumers.py class ChatConsumer(WebsocketConsumer): def connect(self): room_id = int(self.scope['url_route']['kwargs']['room_id']) room = get_room(room_id) self.chat = get_chat(room) chat_name = str(self.chat.id) self.chat_group_name = 'chat_%s' % chat_name self.user = self.scope['user'] if room_id == 19 or is_user_in_room(self.user, room): # Join room group async_to_sync(self.channel_layer.group_add)( self.chat_group_name, self.channel_name ) self.accept() else: self.close() def disconnect(self, close_code): # Leave room group async_to_sync(self.channel_layer.group_discard)( self.chat_group_name, self.channel_name ) # Receive message from WebSocket def receive(self, text_data): text_data_json = json.loads(text_data) message = text_data_json['message'] message = save_message(self.user, self.chat, message) async_to_sync(self.channel_layer.group_send)( self.chat_group_name, { 'type': 'chat.message', 'message': message } ) # Receive message from room group def chat_message(self, event): message = event['message'] print(self.user, self.channel_name) # prints different users, different channel names # Send message to WebSocket self.send(text_data=json.dumps({ 'message': message })) var ws = new WebSocket("ws://localhost:8000/ws/room_chat/19/"); ws.send(JSON.stringify({ message: this.state.struct })); -
Meaning of 'part%04d' in python
hello I am using python but I am Stuckenter image description hereat this point. where I don't know the meaning of this word "part%04d" in python. that's why I am asking you what is the meaning of this 'part%04d' in python? if you know then plz help me thank you! -
How to use the same connection for two differents consummers in Django Channels?
I use the last version of django channels(V3) and i have two consummers. This is my routing.py application = ProtocolTypeRouter({ "websocket": AuthMiddlewareStack( URLRouter([ url(r"^ws/user/(?P<user_id>\d+)/$", consumers.UserConsumer), url(r"^ws/notification/(?P<room_name>\w+)/$", con.NotificationConsumer), ]) ), }) My first app.consummes.py class UserConsumer(WebsocketConsumer): user_number = 0 def connect(self): self.room_name = self.scope['url_route']['kwargs']['user_id'] self.room_group_name = self.room_name print("connected", self.room_group_name) self.user_number+= 1 print("user_number", self.user_number) # Join room group async_to_sync(self.channel_layer.group_add)( self.room_group_name, self.channel_name ) self.accept() def disconnect(self, close_code): # Leave room group print("deconnected") async_to_sync(self.channel_layer.group_discard)( self.room_group_name, self.channel_name ) # Receive message from WebSocket def receive(self, text_data): text_data_json = json.loads(text_data) proposal_identifiant = text_data_json['proposal_identifiant'] sender = text_data_json['sender'] messages = text_data_json['messages'] owner = text_data_json['owner'] conversator = text_data_json['conversator'] last_sender = text_data_json['last_sender'] type_ad = text_data_json['type_ad'] ad_id = text_data_json['ad_id'] price = text_data_json['price'] sending_by = text_data_json['sending_by'] price_is_changed = text_data_json['price_is_changed'] accepted = text_data_json['accepted'] from_send_message = text_data_json['from_send_message'] users_id = [] users_id.append(owner) users_id.append(conversator) winner_or_looser = text_data_json['winner_or_looser'] try: try: if proposal_identifiant and get_current_proposal(proposal_identifiant): # we create message if proposal exist if accepted == False: update_proposal(proposal_identifiant, last_sender, price, price_is_changed, accepted) create_new_message(proposal_identifiant, sender, messages) else: if from_send_message == True: update_proposal(proposal_identifiant, last_sender, price, price_is_changed, accepted) create_new_message(proposal_identifiant, sender, messages) else: try: create_new_delivery( owner, conversator, proposal_identifiant, type_ad, ad_id, price, accepted, ) create_new_message(proposal_identifiant, sender, messages) winner_or_looser = True except IntegrityError: print("error") return self.send(text_data=json.dumps({ 'error': "IntergyError" })) else: # we create at first … -
Serialize a M-2-M relation with grouping in Django REST framework
I have two models, linked through a separate model as follow: class Project(models.Model): name = models.CharField(max_length=50, unique=True) class Employee(models.Model): name = models.CharField(max_length=50, unique=True) project = models.ManyToManyField( Project, through='Schedule' ) def __str__(self): return self.name class Schedule(models.Model): employee = models.ForeignKey(Employee, on_delete=models.PROTECT) project = models.ForeignKey(Project, on_delete=models.PROTECT) date = models.DateField(null=False) hours = models.IntegerField() Serialized is pretty straight forward: class EmployeeScheduleSerializer(serializers.ModelSerializer): month = serializers.DateField() booked = serializers.IntegerField() class Meta: model = Staff fields = ['id', 'name', 'month', 'booked'] A viewset returns the total number of houses assigned to each employee for different projects, summed over dates: class ScheduleViewSet(viewsets.ReadOnlyModelViewSet): queryset = Employee.objects.all() serializer_class = EmployeeScheduleSerializer lookup_field = 'staff' def get_queryset(self): qs = Employee.objects.values( 'name', month=F('schedule__date') ).annotate( booked=Sum('schedule__hours', distinct=True) ) if self.request.query_params.get('id') is not None: qs = qs.filter(id=self.request.query_params.get('id')) return qs def retrieve(self, request, *args, **kwargs): serializer = self.get_serializer(self.get_queryset(), many=True) return Response(data=serializer.data) In the output we have multiple records for each employee: [ { "name": "John Doe", "month": "10/01/2020", "booked": 100 }, { "name": "John Doe", "month": "11/01/2020", "booked": 120 }, ... ] I want to convert it to a nested list so that the booked hours show up as a list for each employee. I checked multiple threads, but couldn't find a reasonable solution. I think it's … -
No Reverse Match at
I try to redirect to question detailView after answer on question but i get NoReverseMatch at /98afdfc7-df41-416c-aaae-c1014bfbf119/answer after entering my answer models class Question(models.Model): id = models.UUIDField(_("ID"), primary_key=True, default=uuid.uuid4, editable=False) question = models.CharField(_("Question"), max_length=300) def get_absolute_url(self): return reverse('question_detail', args=[str(self.id)]) class Answer(models.Model): question = models.ForeignKey(Question, verbose_name=_( "Answer"), on_delete=models.CASCADE, related_name='answers') answer = models.CharField(max_length=255) def get_absolute_url(self): return reverse('question_detail', args=[str(self.id)]) Urls urlpatterns = [ path('<uuid:pk>/answer', AnswerQuestionView.as_view(), name='answer'), path('questions/<uuid:pk>', QuestionDetailView.as_view(), name='question_detail'), ] Views class AnswerQuestionView(CreateView): model = Answer context_object_name = 'answer' fields = ['answer', 'question'] template_name = "forms/answer.html" class QuestionDetailView(DetailView): model = Question context_object_name = 'question' template_name = "question_detail.html" HTML form <form method="post"> {% csrf_token %} {{form.as_p}} <button value="submit">Post</button> </form> -
django: set default locale for language?
I'm building a multilanguage site using modeltranslate, I can switch between languages no problem. The problem comes with 'en' always being interpreted as 'en-us' which messes up the dates everywhere. It's a European site, I want 'en' to be interpreted as international English, or en-gb at least. I've looked all over but can't see a way to do this. Is there any way to set a default locale for a language in Django? Do I need to set language to en-GB and have en-gb in the url? I really don't want to have to do a lot of coding on every template just to override the US date formatting .... LANGUAGE_CODE = 'en-GB' LANGUAGES = ( ('es', _('Spanish')), ('ca', _('Catalan')), ('en', _('English')), ('fr', _('French')), ) Thanks in advance for your help. -
Create userlist page using Django formsets and display profile image in userlist page
I am just beginner to python and Django Trying to create userlist page using Django formsets and display profile image in userlist page. Not seeing image field in my formset. Models – User (from django.contrib.auth.models) models.py class Profile(models.Model): user = models.OneToOneField(User,on_delete=models.CASCADE) image = models.ImageField(default='default.jpg', upload_to='profile_pics') def __str__(self): return f'{self.user.username} Profile' # def save(self): def save(self, *args, **kwargs): # super().save() super(Profile,self).save(*args, **kwargs) img = Image.open(self.image.path) if img.height > 300 or img.width > 300: output_size = (200,200) img.thumbnail(output_size) img.save(self.image.path) forms.py class UserListForm(forms.ModelForm): image = forms.ImageField() class Meta: model = User fields = ['image','username', 'first_name', 'last_name', 'email', 'is_staff', 'is_active', 'is_superuser', 'date_joined'] def __init__(self, *args, **kwargs): super(UserListForm, self).__init__(*args, **kwargs) Views.py def userlist(request): UserFormSet = modelformset_factory(User,form=UserListForm, extra = 0) userlist_form = UserFormSet(queryset=User.objects.select_related('profile')) context = {'userlist_form': userlist_form} return render(request, 'webapp/user_list.html', context) user_list.html {% load crispy_forms_tags %} {% block content %} <div class = "content-section"> <form method="POST" enctype="multipart/form-data"> {% csrf_token %} <fieldset class="form-group"> <legend class="border-bottom, mb-1 ">User Info</legend> <table id = "usertab" > {% for form in userlist_form %} {% if forloop.first %} <thead> <tr> <th> <label for="id_image"> Image </label> </th> <th> <label for="id_username"> User Name </label> </th> <th> <label for="id_first_name"> First Name </label></th> <th> <label for="id_last_name"> Last Name </label></th> <th> <label for="id_email"> Email Address </label></th> <th> … -
Slack blocks + sending response doesn't work in python, not even when async
Sending block to Slack - it shows on slack correctly. Button is clicked, I am getting the interactive event webhook. webhook returns 200 OK to slack, not before scheduling an async POST to the response_url the return message is posted to response_url AFTER the 200 ack is returned from the webhook function Slack responds 404 to the response_url that same response URL works when curled outside of python.... I don't get why slack rejects the posted return message with 404 when the very same response_url works when used in curl outside of python. my webhook processor: def slack_webhook(request): json_dict = json.loads(request.body.decode('utf-8')) token = json_dict['token'] if 'token' in json_dict else None message = json_dict['message'] if 'message' in json_dict else None trigger_id = json_dict['trigger_id'] if 'trigger_id' in json_dict else None response_url = json_dict['response_url'] if 'response_url' in json_dict else None actions = json_dict['actions'] if 'actions' in json_dict else None for action in actions: print(f"** received action {action['action_id']}") print(f"** response_url: {response_url}") print(f"** trigger_id: {trigger_id}") payload = { "replace_original": True, "text": "Success!", } # async via Celery... send_slack_interactive_response.delay(response_url, payload, trigger_id) return HttpResponse(status=200) the async celery task which sends the @app.task(bind=True, retry_kwargs={'max_retries': 10, 'countdown': 5}) def send_slack_interactive_response(self, response_url, payload, trigger_id): print(f"** -> response_url: {response_url}") print(f"** -> … -
Dynamic choices in model CharField choices
This document shows an example of how to declare a model CharField with choices here class Student(models.Model): FRESHMAN = 'FR' SOPHOMORE = 'SO' JUNIOR = 'JR' SENIOR = 'SR' GRADUATE = 'GR' YEAR_IN_SCHOOL_CHOICES = [ (FRESHMAN, 'Freshman'), (SOPHOMORE, 'Sophomore'), (JUNIOR, 'Junior'), (SENIOR, 'Senior'), (GRADUATE, 'Graduate'), ] year_in_school = models.CharField( max_length=2, choices=YEAR_IN_SCHOOL_CHOICES, default=FRESHMAN, ) The list YEAR_IN_SCHOOL_CHOICES is part of the class Student. Does it mean this list is stored somewhere in the database? If so, can it be accessed and modified during runtime? Suppose I need to make this list dynamic depending on another model class. For eg: class Edu_Level(models.Model) level = models.CharField(max_length = 200) Each time my app creates a new Edu_Level, I want to add that level to the choice list in the other Student model. Assuming that they are both in the same app, is this possible? Thanks. -
can't fix: does not appear to have any patterns in it. If you see valid patterns in the file then the issue is probably caused by a circular import
I am learning django and i was using a video which guides me what to do. I wrote the same code before ,and it worked but now I'm getting this error: django.core.exceptions.ImproperlyConfigured: The included URLconf '<module 'blog.urls' from 'D:\\python\\pishrafte\\twiter\\twiter\\blog\\urls.py'>' does not appear to have any patterns in it. If you see valid patterns in the file then the issue is probably caused by a circular import. and in urls.py in blog app, I wrote the code: from django.urls import path from . import views urlpatterns = [ path('', views.index, name='index') ] What should I do? -
with python django how can i goup by non overlaping 24hour periods starting at first record, where the first record is at least 24huors from the last?
So i am using django and i have Questionnaires, Questions and Responses i need to sort the responses into groups where the session length is up to 24hours (and people are not allowed to answer a question again in 24hours since they started it) I would like response q1 - score 4 - datetime 1/1/20 04:23 response q2 - score 4 response q3 - score 5 - datetime not more than 2/1/20 4:22 then the same questions with a different score at a different time response q1 - score 6 - datetime not before 2/1/20 4:23 response q2 - score 4 response q3 - score 6 - datetiem not more than 24h from first response of second set. -
Django PointField with geography=True can't save data: SQL function error
I have a Django 3.1.2 with GIS extension installed, PostgreSQL 12 and PostGIS 3. In my model I'm trying to use a PointField with geography=True to store real-world coordinates: location = models.PointField(geography=True, srid=4326, blank=False, null=False, verbose_name=_("Lat/Lon coordinates")) In the admin menu I'm using the OSMWidget to enter coordinates: location = forms.PointField(widget=forms.OSMWidget(attrs={'map_width': 800, 'map_height': 500, 'default_zoom': 15})) When this is saved Django runs into the following SQL error: INSERT INTO "challenges_point" ("track_id", "sortkey", "name", "location") VALUES (15, 10, 'Start', ST_Transform(ST_GeogFromWKB('\x...'::bytea), 4326)) RETURNING "challenges_point"."id"; ERROR: function st_transform(geography, integer) does not exist LINE 1: ...", "location") VALUES (15, 10, 'Start', ST_Transfo... ^ HINT: No function matches the given name and argument types. You might need to add explicit type casts. ST_Transform() is used to transform geometry points (which is used as data type if geography=False is used for the PointField). But I'm not sure what's required to make it work with geography. -
Changing the Default Frontend for Django_filters
I was following through the Dennis Ivy Youtube Django Tutorials and came across a question (https://www.youtube.com/watch?v=G-Rct7Na0UQ&list=PL-51WBLyFTg2vW-_6XBoUpE7vpmoR3ztO&index=13) So the views.py is like this: def customer(request, pk_customer): customer = Customer.objects.get(id=pk_customer) orders = customer.order_set.all() order_count = orders.count() myFilter = OrderFilter(request.GET, queryset=orders) orders = myFilter.qs context = {'customer': customer, 'orders':orders, 'order_count':order_count, 'myFilter':myFilter} return render(request, 'accounts/customer.html', context) and the filters.py is like this: import django_filters from django_filters import DateFilter, CharFilter from .models import * class OrderFilter(django_filters.FilterSet): start_date = DateFilter(field_name='date_created', lookup_expr='gte') end_date = DateFilter(field_name='date_created', lookup_expr='lte') class Meta: model = Order fields = "__all__" exclude = ['customer', 'products'] and lastly the template that shows this part has this line of html code: ... <div class="card card-body"> <form method="get"> {{myFilter.form}} <button class="btn btn-primary" type="submit">Search</button> </form> </div> </div> but what I don't really get is that in the frontend: I don't want the "Date created is greater than or equal to" or "Date created is less than or equal to" to show it like that but maybe change it to a different wording, something like for example just GTE or LTE or stuff like that I couldn't seem to find a way, and is there a way?? -
how to loop through django form errors after getting them as json with ajax
my signup form works fine when there are no errors and saves users correctly but i couldn't display errors when there are form field errors after getting them with form.errors.as_json here is the view of the form: if request.is_ajax(): signup_form = SignupForm(request.POST) if signup_form.is_valid(): signup_form.save() full_name = signup_form.cleaned_data.get('full_name') email = signup_form.cleaned_data.get('email') raw_password = signup_form.cleaned_data.get('password1') account = authenticate(email=email, password=raw_password) login(request, account) return JsonResponse({"success" : True}, status=200) else: return JsonResponse({'success': False},signup_form.errors.as_json() , status=400) here are the ajax stuff in my javascript file: var $signupForm = $('#form-signup'); $signupForm.submit(function (event) { event.preventDefault(); var $signupData = $signupForm.serialize(); $.ajax({ url: "http://localhost:8000", method: 'POST', data: $signupData, success: function() { location.reload() }, error: function () { // display form errors in a div or console.log them // by looping through them }, }); }); with this code when there are field inputs errors like "pasword is too short" or somthing like that i get error status code 500 and: 'str' object is not callable in my django server terminal i checked many question about this but none of them helped and most of them were outdated -
How do i add a photo to a template using the admin panel?
consider this my models.py file. from django.db import models class alldets(models.Model): first_name = models.CharField(max_length=50, default ='first name') second_name = models.CharField(max_length=50, default='second name') school = models.CharField(max_length=50, default='school name') county = models.CharField(max_length=50, default='where from') phone = models.CharField(max_length=20, default='phone number') age = models.IntegerField(default='254') def __str__(self): return self.first_name How do i add a photo just to it then parse it to the views.py and then to the template? -
sqlite3.IntegrityError: NOT NULL constraint failed: store_comment.post_id(Implementing Comment functionality.)
I am getting sqlite3.IntegrityError: NOT NULL constraint failed: store_comment.post_id.Please find the below error details. Django version 3.0.2, using settings 'ShaileshShop.settings' Starting development server at http://127.0.0.1:8000/ Quit the server with CONTROL-C. Checking comment post is happening or not:YES Product in comment post: Black Skater Dress Check Check Check Internal Server Error: /details/3 Traceback (most recent call last): File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/db/backends/utils.py", line 86, in _execute return self.cursor.execute(sql, params) File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/db/backends/sqlite3/base.py", line 396, in execute return Database.Cursor.execute(self, query, params) sqlite3.IntegrityError: NOT NULL constraint failed: store_comment.post_id The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/core/handlers/exception.py", line 34, in inner response = get_response(request) File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/core/handlers/base.py", line 115, in _get_response response = self.process_exception_by_middleware(e, request) File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/core/handlers/base.py", line 113, in _get_response response = wrapped_callback(request, *callback_args, **callback_kwargs) File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/views/generic/base.py", line 71, in view return self.dispatch(request, *args, **kwargs) File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/views/generic/base.py", line 97, in dispatch return handler(request, *args, **kwargs) File "/Users/shaileshyadaav/djangoshaileshdurga/ShaileshEcomm/store/views.py", line 295, in post new_comment.save() File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/db/models/base.py", line 746, in save force_update=force_update, update_fields=update_fields) File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/db/models/base.py", line 784, in save_base force_update, using, update_fields, File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/db/models/base.py", line 887, in _save_table results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw) File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/db/models/base.py", line 926, in _do_insert using=using, raw=raw, File "/Users/shaileshyadaav/PycharmProjects/first/venv/lib/python3.7/site-packages/django/db/models/manager.py", line 82, in manager_method return getattr(self.get_queryset(), … -
Page not found error on django when try to upload image
In my Django project, I am trying to register a student. When I submit the registration form on the live server I got a Page not found (404) error. But it working perfectly on my local server. I think I got this problem for upload image because when I try to submit another form without any image it saves on the database perfectly. This is the exact error I got. Page not found (404) Request Method: POST Request URL: https://xxxxx.com/accounts/registration/student/ Raised by: accounts.views.register_student Using the URLconf defined in coaching.urls, Django tried these URL patterns, in this order: ad/ accounts/ students/ teachers/ admin/ vedios/ [name='landingpage'] error [name='error_page'] ^media\/(?P<path>.*)$ The current path, registration/student/, didn't match any of these. This is the URL patterns related to this problem from django.urls import path,include from accounts import views from django.conf import settings from django.conf.urls.static import static urlpatterns = [ path('registration/student/', views.register_student, name='student_registration'), path('registration/teacher/', views.register_teacher, name='teacher_registration'), path('login/', views.login_view, name='login'), path('logout/',views.logout_view,name="logout") ] And this the view's method for that I got this error. def register_student(request): context={} if request.POST: form = RegistrationForm(request.POST,request.FILES) if form.is_valid(): user = form.save(commit=False) user.is_student = True user.save() # login(self.request, user) return redirect('login') else: context['form'] = form else: form = RegistrationForm() context['form'] = form return … -
djangocms custom apphook with multilanguage
I am using djangoCMS with some custom App hook with models. Everything is working fine for English. Now I need the app in Arabic. But when I change the content for Arabic, the same is getting reflected in English page also. How to deal with the same. I am very new to django cms. Please help. App hook Model from django.db import models from filer.fields.image import FilerImageField from django.urls import reverse from cms.models.fields import PlaceholderField from cms.models import CMSPlugin from djangocms_text_ckeditor.fields import HTMLField # Create your models here. class Services(models.Model): class Meta: app_label= 'voxservices' service_name = models.CharField( blank=False, unique=True, help_text="Please enter the Service you are providing", max_length=100 ) slug = models.SlugField( blank=False, default='', help_text='Provide a unique slug for this service', max_length=100, ) photo = FilerImageField( blank=True, null=True, on_delete=models.SET_NULL, help_text='Add the photo for the service' ) font_awesome_class = models.CharField( max_length=100, null=True, blank=True ) service_intro = models.TextField() service_description = HTMLField(blank=True) is_featured = models.BooleanField() def get_absolute_url(self): return reverse("voxservices:services_detail", kwargs={"slug": self.slug}) def __str__(self): return self.service_name # For plugin class FeaturedServicesPluginModel(CMSPlugin): featured_services = Services.objects.all().filter(is_featured=True) def __str__(self): return "{selected} Selected articles".format(selected=self.featured_services.all()) def copy_relations(self, oldinstance): self.featured_services = oldinstance.featured_services.all() views from django.shortcuts import render from django.views.generic import DetailView,ListView from .models import Services # Create your views here. class … -
Netbox Management IP Address
I have installed netbox on an Ubuntu Server. I have tested the netbox out using this command python3 manage.py runserver 0.0.0.0:8000 --insecure This works and I have left it running as a task in the background for now. It's not a permanent solution. I was able to get the service running, as I am able to access it using wget 127.0.0.1:8000 This is a local loopback address and I wanted to know how I can change this to the ip address of the server. I have tried to change the Server Address in the config but no luck This is what the systemctl status looks like: Nov 02 12:05:29 l systemd[1]: Started NetBox WSGI Service. Nov 02 12:05:29 l gunicorn[2330166]: !!! Nov 02 12:05:29 l gunicorn[2330166]: !!! WARNING: configuration file should have a valid Python extension. Nov 02 12:05:29 l gunicorn[2330166]: !!! Nov 02 12:05:29 l gunicorn[2330166]: [2020-11-02 12:05:29 +0000] [2330166] [INFO] Starting gunicorn 20.0.4 Nov 02 12:05:29 l gunicorn[2330166]: [2020-11-02 12:05:29 +0000] [2330166] [INFO] Listening at: http://127.0.0.1:8000 (2330166) Nov 02 12:05:29 l gunicorn[2330166]: [2020-11-02 12:05:29 +0000] [2330166] [INFO] Using worker: sync Nov 02 12:05:29 l gunicorn[2330195]: [2020-11-02 12:05:29 +0000] [2330195] [INFO] Booting worker with pid: 2330195 If someone could … -
The virtual environment is made in my user s folder
No matter what folder am I'm, command 'pipenv shell' creat virtualenvironment named by my username, doesn't create virtualenvironment named by my project(folder's name). Could you please help me with that? -
How to write submit method for shopping in django models?
In the code below, i want to write submit method for the shopping, i don't know what i have written is correct or not, and i don't know how to stop customer from adding new items after the order is submitted.( when we submit an order, shopping is done.) please help me or give me some points to write cancel and send methods of Order class too. Thanks. class OrderRow(models.Model): product = models.ForeignKey('Product') order = models.ForeignKey('Order', on_delete=models.CASCADE) amount = models.IntegerField() class Order(models.Model): # Status values. DO NOT EDIT STATUS_SHOPPING = 1 STATUS_SUBMITTED = 2 STATUS_CANCELED = 3 STATUS_SENT = 4 status_choices = ( STATUS_SHOPPING, STATUS_SUBMITTED, STATUS_CANCELED, STATUS_SENT, ) customer = models.ForeignKey('Customer') order_time = models.TimeField(auto_now_add=True) total_price = sum(F('OrderRow.product__price') * F('OrderRow.amount')) status = models.IntegerField(choices=status_choices) @staticmethod def initiate(self, customer): self.customer = customer self.status = 1 def add_product(self, product, amount): self.status = 1 if self.orderrow_set.filter(product=product).exists(): preexisting_order_row = OrderRow.objects.get(product=product, order=self) preexisting_order_row.amount += amount preexisting_order_row.save() else: # new_order_row = OrderRow(product=product, order=self) # new_order_row.amount += amount # new_order_row.save() new_order_row = OrderRow.objects.create( order=self, product=product, amount=amount ) # create saves already def remove_product(self, product, amount=None): pass def submit(self): if self.customer.balance >= self.total_price: order_products = OrderRow.objects.filter(order=self) for p in order_products: if p.amount <= p.product.inventory: self.status=2 def cancel(self): self.status = 3 … -
How can I make Django Query Return Nothing When Subquery Is Empty
I have Django query with sub-query like this cust_order = TOrder.objects \ .select_related('user') \ .annotate(category_name=Subquery(TOrderDetail.objects .filter(t_order=OuterRef('id'), deleted_at__isnull=True, deleted_by__isnull=True) .values_list('product__product_category__name', flat=True)[:1]) cust_feedback=Subquery(TOrderFeedback.objects .filter(t_order=OuterRef('id'), deleted_at__isnull=True, deleted_by__isnull=True, .values_list('message', flat=True)[:1]), The problem is, some times the sub-query of cust_feedback will empty, and how can I do filter if the cust_feedback is empty then the parent query should return nothing ? Thanks -
Using Django without ORM and be able to create users
I am a beginner when it comes to django. I have a database project in which we design a database (MySQL) with a frontend without using an ORM (it will be car rental project), so without using the model classes that are available in django, because the tutor assumes that we should learn making queries. I know that it's possible to use django without orm by yourself creating queries, but I don't know how it looks when it comes to create a user account. Is it possible to create a user (through user registration page) and simultaneously have access to him in the admin panel and be able to create relationships with him in the database without using model classes? -
Best practice for passing data to JavaScript in Django
When writing a view in Django, there are several ways to pass a list of data to javascript. Some of the methods I found are: Passing the data in the response text by serializing into JSON and assigning into a JavaScript variable, Passing the data via an AJAX request after the page is loaded. There are also two ways for this: Sending a POST request to the same URL, Sending a request to another URL Which method is the most reliable one? -
-vps- better than webhostting to deploy?
i have django app and there is a lot of site who provide hostserver i see a lot of them give the same hardwear -ram-cpu-hdd-..etc for VPS and Share hosting web but big different on the price what vps give me more to spend more money for !??
