Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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is there any way for using csrf token in rest api without using front end in django?
i am using django framework for making a rest api for registration but when i do that csrf token is not set since front end is not set. So it causes post request not to execute in POSTMAN. i want some way to make my rest api without disabling the csrf in my program. i tried to copy the csrf token into cookie and access those cookie to verify from POSTMAN that but it is not working for POST request also i tried to set header in postman but it also turn up to be GET request only. from django.views.decorators.csrf import ensure_csrf_cookie @ensure_csrf_cookie '''@csrf_exempt''' def addToTable(request): response = HttpResponse('blah') response.set_cookie('csrftoken', get_token(request)) c = get_token(request) response.set_cookie('csrftoken', c) d = request.COOKIES['csrftoken'] if request.method == 'POST': row_data = request.read() data = json.loads(row_data) a = data['MyName'] b = data['MyPassword'] post = Post() post.MyName = a post.MyPassword = b post.save() response.delete_cookie('csrftoken') return JsonResponse({'My Name ':a+ "and " + c + " is added to database and it is a post request."}) else: response.delete_cookie('csrftoken') return JsonResponse({'username ': d + " Data is not added to database and it is a get request." + c}) return 0 i want my rest api work for registration when i … -
Is there any way to run the python script with django project?
I am new to django and python. I have created a django web application, I also have a python script which I have to run at the backend of the web application in real-time(Like it should always check for new updates and tell the web about new responses from the API by generating notifications). I am using an IBM-Qradar API from which I have to display the data on the web application. I have two problems 1) Is there any way I can use the below python code with my django project just like I described above? 2) and use the API response which is in json format to store the data into MySQL database directly from response variable. I could Only find ways to store data into the database by using forms, which is not required for my project. import json import os import sys import importlib sys.path.append(os.path.realpath('../modules')) client_module = importlib.import_module('RestApiClient') SampleUtilities = importlib.import_module('SampleUtilities') def main(): # First we have to create our client client = client_module.RestApiClient(version='9.0') # ------------------------------------------------------------------------- # Basic 'GET' # In this example we'll be using the GET endpoint of siem/offenses without # any parameters. This will print absolutely everything it can find, every # parameter … -
how to fix connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"? error when running bitbucket pipelines
I am trying to run tests using bitbucket pipelines but unfortunately i can not connect with postgresql. So i have trying adding rm -rf /tmp/.s.PGSQL.5432/ to my bitbucket-pipeline.yml but nothing has changed when running my test This is the error that i get + python manage.py test /usr/local/lib/python3.7/site-packages/django/db/backends/postgresql/base.py:265: RuntimeWarning: Normally Django will use a connection to the 'postgres' database to avoid running initialization queries against the production database when it's not needed (for example, when running tests). Django was unable to create a connection to the 'postgres' database and will use the first PostgreSQL database instead. RuntimeWarning nosetests --with-coverage --cover-package=accounts,rest_v1, property --verbosity=1 Creating test database for alias 'default'... Traceback (most recent call last): File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection self.connect() File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 194, in connect self.connection = self.get_new_connection(conn_params) File "/usr/local/lib/python3.7/site-packages/django/db/backends/postgresql/base.py", line 174, in get_new_connection connection = Database.connect(**conn_params) File "/usr/local/lib/python3.7/site-packages/psycopg2/__init__.py", line 130, in connect conn = _connect(dsn, connection_factory=connection_factory, **kwasync) psycopg2.OperationalError: could not connect to server: No such file or directory Is the server running locally and accepting connections on Unix domain socket "/var/run/postgresql/.s.PGSQL.5432"? bitbucket-pipelines.yml image: python:3.6.2 pipelines: default: - step: script: - pip install -r requirements.txt - python manage.py test branches: develop: - step: caches: - node script: - pip … -
Why my contextProcessor doesnt work for all templates? django 2.2.1
As the title says, i have set a input processor but it does not work for all the templates of my page, just for some of them but not for all. I have created the context_processor.py inside of my app. def categories_processor(request): enterprise = enterprisedata.objects.get(id=0) return {'enterprise': enterprise} I heard thats all that i need to do it. But it some templates when i try to call it like for example: {% block title %} <title>{{enterprise.name}} | Carrito</title> {% endblock %} Doesnt work. Any help? something that i am missing? thank you! -
django: redirect to another page after download is triggered
I would like the user to be redirected to another page after the download of his file is triggered. How should I do this? Below is my code on how the download is triggered. Alternatively, how could I parse the data frame created in the first web page to the web page the user is redirected to then trigger the download? Any help is appreciated. Thank you! from django.shortcuts import render from django.http import HttpResponse from .forms import * from .functions import * from . import models def index(request): if request.method == 'POST': # upload file file=request.FILES['excelfile'] df=createDF(file) # write to xlsx and trigger download response = HttpResponse(content_type='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet') response['Content-Disposition'] = 'attachment; filename="somefile.xlsx") df.to_excel(response, index=False) return response # render form for upload return render(request, 'webpage/index.html') -
Use multiple databases in Django having the other database contain tables not created by any model
Here are my questions and if you want to know the details, kindly refer further below (Sorry for the long post, I wanted the inquiry to be as detailed as possible): Questions Is it possible to retrieve data from an external database and use those inside your Django project even if the tables in that database are NOT created as models? If so, what's the basic concept to achieve such. If NOT, then the workaround left is to use the SAME DATABASE as the remote one, and save all models of the django project into a specific schema in that database? So we are trying to forcibly implement Cross-database referencing with a remote database my_remote_db, that contains tables which are not created by a Django model. We've read the Django doc telling it currently cannot handle such referencing method, but the fact we can define multiple databases in settings.py makes us optimistic that there is somehow a workaround. Databases as defined in our settings.py django_project_db - main database (the one used by our Django project for its models) my_remote_db - the remote database. Several applications are using this database e.g. our Scout and PHP applications, etc. What we want to … -
Django Admin Custom Url Path
Hi I would like to create a custom url in my django admin. The default URL when editing an object is. http://localhost:8000/admin/cart/cart_id/change In my admin http://localhost:8000/admin/cart/1/change I have a field called cart unique id. I want to create a custom url that behaves similar to the edit URL in django admin. http://localhost:8000/admin/cart/uniq_id/change http://localhost:8000/admin/cart/H2KPAT/change Is this implemation possible? -
Django Modelform - setting field value to foreign key
I created two models in my app: "Prescription" and "Prescription_status." When a user clicks save on my "Create new prescription" modelform, I need to add a "Prescription_status" to the "Prescription." In the below instance, I'd like to save as a 'Draft' status (PK=1). I don't want to set a default status. I've been trying everything, what am I missing?? Thanks in advance! models.py # Static Prescription Status Types class Prescription_status(models.Model): status = models.CharField(max_length=200) status_definition = models.TextField() def __str__(self): return '%s' % (self.status) # Prescription Model class Prescription(models.Model): order_id = models.AutoField(primary_key=True, unique=True) status = models.ForeignKey(Prescription_status, models.SET_NULL, null=True) I saved the following Prescription_status objects to the database, which I'd like to reference as users save or edit prescriptions: status_id for "Draft" status = 1 status_id for "Ready for Signing" status = 2 status_id for "Signed and Authorized" status = 3 database chart showing PK for each status forms.py class PrescriptionForm(forms.ModelForm): class Meta: model = Prescription fields = ('medication', 'quantity', 'directions', 'refills', 'earliest_permitted_fill_date', 'daw',) widgets = { 'earliest_permitted_fill_date': DatePickerInput(), # default date-format %m/%d/%Y will be used } views.py def new_rx(request): if request.method == "POST": form = PrescriptionForm(request.POST) if form.is_valid(): prescription = form.save(commit=False) prescription.status = Prescription_status.objects.get(pk=form.cleaned_data['1']) prescription.save() return redirect('home') else: form = PrescriptionForm() return … -
How to remove DELETE button from django admin page
I want to remove the Delete button from django admin page as shown below. -
django user fields shown empty in template
cannot access fields in templates model.py: class DSS(models.Model): title = models.CharField(max_length=255, null=True, blank=True, verbose_name='عنوان') usr = models.ForeignKey(User, related_name='owner', verbose_name='کاربر') view.py: def state(request): result = DSS.objects.values('usr').order_by('usr').annotate(count=Count('usr')) context = {'result': result,} return render(request, 'state.html', context) my template: <tr> <td>{{ item.usr }}{{ item.usr.get_username}}{{ item.usr.username}}{{ item.usr.get_full_name}}</td> <td>{% with item.usr.get_username as usrnm %} {{ item.usr.get_full_name|default:usrnm }} {% endwith %}</td> <td>{{ item.usr.first_name }} {{ item.usr.lastname }}</td> <td>{{ item.owner.first_name }}</td> <td>{{ item.count }}</td> </tr> {{ item.count }} work well and {{ item.usr }} just show user id, but I need to display username. -
Python django ImportError: cannot import name (unknown location)
I am starting to use Django and was able to get Django Rest Framework working. Now, I am trying out Elasticsearch using https://django-elasticsearch-dsl-drf.readthedocs.io/en/0.18/ and also following https://github.com/barseghyanartur/django-elasticsearch-dsl-drf/tree/master/examples/simple I followed the examples, built my project along those lines. I am getting the ImportError when I try to start server, could anyone please review and give me pointers on what I may be missing. I am enclosing some details about my environment for reference. Thanks Environment: cmd > pip freeze | find "Django" django-cors-headers==3.0.2 django-elasticsearch-dsl==0.5.1 django-elasticsearch-dsl-drf==0.18 django-filter==2.1.0 django-nine==0.2.2 djangorestframework==3.9.4 Directory structure demosite demosite settings.py [INSTALLED_APPS contains my_rest_app, search_indexes] my_rest_app [which works with http://localhost:8000/my_rest_app/] search_indexes viewsets publisher.py [see below] urls.py [see below] documents publisher.py [see below] search_indexes/url.py --------------------- from django.conf.urls import url, include from rest_framework.routers import DefaultRouter from search_indexes.viewsets import PublisherDocumentViewSet urlpatterns = [ url(r'^', include(router.urls)), ] # ********************************************************** # *********************** Publishers *********************** # ********************************************************** router.register( r'publishers', PublisherDocumentViewSet, basename='publisherdocument' ) search_indexes/viewsets/publisher.py ------------------------------------ from django_elasticsearch_dsl_drf.pagination import LimitOffsetPagination from django_elasticsearch_dsl_drf.viewsets import DocumentViewSet from ..documents import PublisherDocument from ..serializers import PublisherDocumentSerializer __all__ = ( 'PublisherDocumentViewSet', ) class PublisherDocumentViewSet(DocumentViewSet): """The PublisherDocument view.""" document = PublisherDocument serializer_class = PublisherDocumentSerializer search_indexes/documents/publisher.py -------------------------------------- from my_rest_app.models import Publisher __all__ = ('PublisherDocument',) INDEX = Index(settings.ELASTICSEARCH_INDEX_NAMES[__name__]) # See Elasticsearch Indices API reference for … -
How to fix TypeError when using django-restframework-generics
I am learning how to use class-based generic views but I keep getting a type error from invoice.models import Invoice from invoice.serializers import InvoiceSerializer from rest_framework import generics class InvoiceList(generics.ListCreateAPIView): queryset = Invoice.objects.all() serializer_class = InvoiceSerializer class InvoiceDetail(generics.RetrieveUpdateDestroyAPIView): queryset = Invoice.objects.all() serializer_class = InvoiceSerializer I get a type error with the message "init() takes 1 positional argument but 2 were given" -
How to calculate with multiple condition on dictionary python
So I am writing some code in python 3.6, I have a dictionary, I want to sum output_jam and output_ot if jam and cell have same value. this is my code. any one can help me to fix my code data = { 1: {'cell_1': ['13a'], 'jam_1': ['07-08'], 'model_1': ['SUPERSTAR'], 'output_1': ['10'], 'output_jam_1': [''], 'time_1': [''], 'output_ot_1': [''], 'time_ot_1': ['']} , 2: {'cell_2': ['13a'], 'jam_2': ['07-08'], 'model_2': ['SUPERSTAR'], 'output_2': ['20'], 'output_jam_2': [''], 'time_2': [''], 'output_ot_2': [''], 'time_ot_2': ['']} , 3: {'cell_3': ['13a'], 'jam_3': ['07-08'], 'model_3': ['SUPERSTAR'], 'output_3': ['40'], 'output_jam_3': [''], 'time_3': [''], 'output_ot_3': [''], 'time_ot_3': ['']} , 4: {'cell_4': ['13b'], 'jam_4': ['08-09'], 'model_4': ['SUPERSTAR'], 'output_4': ['30'], 'output_jam_4': [''], 'time_4': [''], 'output_ot_4': [''], 'time_ot_4': ['']} , 5: {'cell_5': ['13d'], 'jam_5': ['16-17'], 'model_5': ['SUPERSTAR'], 'output_5': ['40'], 'output_jam_5': [''], 'time_5': [''], 'output_ot_5': [''], 'time_ot_5': ['']} , 6: {'cell_6': ['13d'], 'jam_6': ['16-17'], 'model_6': ['SUPERSTAR'], 'output_6': ['40'], 'output_jam_6': [''], 'time_6': [''], 'output_ot_6': [''], 'time_ot_6': ['']} , 7: {'cell_7': ['13d'], 'jam_7': ['16-17'], 'model_7': ['SUPERSTAR'], 'output_7': ['10'], 'output_jam_7': [''], 'time_7': [''], 'output_ot_7': [''], 'time_ot_7': ['']} , 8: {'cell_8': ['13d'], 'jam_8': ['18-19'], 'model_8': ['SUPERSTAR'], 'output_8': ['60'], 'output_jam_8': [''], 'time_8': [''], 'output_ot_8': [''], 'time_ot_8': ['']} , } output_ = 'output_' output_jam_ = 'output_jam_' output_ot_ = 'output_ot_' time_ = 'time_' … -
What web technology to be used to develop an interactive web app for the Energy Hub model?
I need recommendations regarding the technology to be used in a web app. What the app is about and what I am looking for are described in detail here. I understand that this question is better suited to be asked on https://softwarerecs.stackexchange.com, which is where the link above leads to. Since the StackOverflow community is larger, I felt a need to post it here as well. If this violates any of the community guidelines, feel free to take it down. Please help me out. Mentioning good learning material/tutorials for what you suggest would be a cherry on top. Thanks. -
Django model edit page creates new model instead of editing the current one
I just deployed my first Django app, which is for the small company I work for to track jobs, expenses, and it has a blog for customers to see. After I deployed the site, I realized the page to edit the job model did not show the job's information but a blank form for a new instance. When the edit is submitted it creates a new instance instead of changing the current job that's meant to be edited. Editing works just fine through the admin dashboard, but I just can't figure out why the edit page won't work. I tried tweaking the view function for editing the job, deleting migrations and the database, and re-migrating, all to no avail. views.py def job_edit(request, pk): if request.user.is_authenticated: job = get_object_or_404(Job, pk=pk) if request.method == "POST": form = JobForm(request.POST, request.FILES) if form.is_valid(): job = form.save(commit=False) job.author = request.user job.last_updated = timezone.now() job.image0 = form.cleaned_data['image0'] job.image1 = form.cleaned_data['image1'] job.image2 = form.cleaned_data['image2'] job.image3 = form.cleaned_data['image3'] job.save() messages.success(request, 'Job updated successfully') return redirect('job_detail', pk=job.pk) else: form = JobForm() return render(request, 'job_edit.html', {'form': form}) else: return render(request, 'job_edit.html') forms.py class JobForm(forms.ModelForm): foreman = forms.ChoiceField(choices=FOREMEN, required=True) status = forms.ChoiceField(choices=JOB_STATUS, required=True) zip = forms.IntegerField(validators=[MinValueValidator(00000), MaxValueValidator(99999)]) class Meta: model = … -
How can I structure Django permissions to have multiple categories of permissions groups?
I'd like to have multiples layers of permissions for an API using Django Rest Framework, how can I best achieve this? Specifically the three categories of authorization I have are: Roles: Model level access, such as admin and different customer types. GroupAccess: Per object, group access such as a team of users. Sensitivities: Per object, additional tags for sensitive information. The second two categories apply equally across all models and it would be nice to not need separate permissions for each model. Idea 1: Create a model for each category inheriting from the standard django auth group. Doing these as proxy groups, to be logically different in my code, but as consistent with standard authorization as possible. Then use django-guardian to enable the object level permissions. Idea 2: Use the standard groups for roles and assign model level permissions based on these groups. For the object level permissions write a custom permission classes in Django Rest Framework to check the object level permissions against the user. -
What does base_name do in Django?
router.register(r'my-model/', MyModelView, base_name='MyModel') I don't understand what the base_name is for in the code above. I've read the Django doc: https://www.django-rest-framework.org/api-guide/routers/, and other Stackoverflow questions. But I still don't understand. -
Converting to Django Channels 2.0 how to serve static pages from runserver
Channels 1.0 I was able to serve my http pages in development runserver using: urlpatterns += ( url(r'^$', static_views.serve, kwargs={'path': 'app/index.html'}), ) What would be analogous to this in 2.0? I assume I'd have to override the "http" in my ProtocolTypeRouter, but unclear how to make that happen. -
How to save with django model form multiple data into one table?
I have a model to save the reservation data with a form model and it works very well but only for one person. I would like that when the number of people exceeds a person the form asks the same data for the following people in the same form with the same model (Table). I have tried to create multiple model to save data depending the number of people but it's not what I want because I want to do this with one model I mean one table from the database. This is my model: class BusTicket(models.Model): ''' Class to define a bus ticket ''' vip_types = ( ('Yes', 'Yes'), ('No', 'No'), ) #each indivitual status PENDING = 'Pending' CONFIRMED = 'Confrimed' TICKET_STATUSES = ((PENDING,'Pending'), (CONFIRMED,'Confrimed'), ) vip_booking = models.CharField(max_length=60, choices=vip_types, default="No") gender = models.CharField(max_length=15, choices=gender_choices) first_name = models.CharField(max_length = 255) last_name = models.CharField(max_length = 255) email = models.EmailField(max_length = 254) active = models.BooleanField(default=True) update = models.DateTimeField(auto_now=True) timestamp = models.DateTimeField(auto_now_add=True) bus_id = models.ForeignKey(BusTravels, on_delete=models.CASCADE, blank=True, null=True) phone_number = PhoneNumberField() def __str__(self): return self.first_name + ' ' + self.last_name + ' ' + str(self.phone_number) -
Django OneToOneField allow online one reference
I am trying to create a one to one reference and want to make sure that that reference is not allowed to be used for another model or instance. For example Say I have an address model, Person Model and Company Model Person has a OneToOneField field to Address Company also has a OneToOneField field to Address address=Address(data="some address") company=Company(name="some company",address=address) person=Person(name="my name",address=address) Models: class Address(models.Model): data = models.CharField(max_length=255, blank=True, null=True) class Company(models.Model): name = models.CharField(max_length=255, blank=True, null=True) address=models.OneToOneField(Address,on_delete=models.CASCADE) class Person(models.Model): name = models.CharField(max_length=255, blank=True, null=True) address=models.OneToOneField(Address,on_delete=models.CASCADE) I would like the system to throw an error on this since I am setting the same address to 2 different models. Also this would delete both person and company if I delete address. Usually you catch this with code and not make a stupid mistake like this. But can system catch it since it is one to one ? -
Django bootstrap4 - Parameter "form" should contain a valid Django Form
I am getting the following Bootstrap exception 'Parameter "form" should contain a valid Django Form.' when running the following code from this tutorial: {% load bootstrap4 %} <form action="/url/to/submit/" method="post" class="form"> {% csrf_token %} {% bootstrap_form form %} {% buttons %} <button type="submit" class="btn btn-primary">Submit</button> {% endbuttons %} </form> Is the second'form' in 'bootstrap_form form' supposed to reference/point to something? Is it a variable? What is a valid django form? I checked several posts and answers on this issue, but haven't been able to make sense of this error. -
I am trying to run an endless worker thread (daemon) from within Django
I have a worker thread which only task is to query a list of active users every 10 minutes from the database, and to send them an SMS message if a certain condition is fulfilled (which is checked every minute); also the worker thread does not hinder the main application at all. So far I managed to get the thread up and running and sending SMS works also just fine. However, for some reasons the thread stops/gets killed after some random time (hours). I run a try: except Exception as e: within a while True, to catch occurring errors. Additionally, I print out a messages saying what error occurred. Well, I never see any message and the thread is definitely down. Therefore, I suspect Gunicorn or Django to kill my thread sort of gracefully. I have put log and print statements all over the code but haven't found anything indicating why my thread is getting killed. My wsgi.py function where I call the function to start my thread """ WSGI config for django_web project. It exposes the WSGI callable as a module-level variable named ``application``. For more information on this file, see https://docs.djangoproject.com/en/2.1/howto/deployment/wsgi/ """ import os from django.core.wsgi import get_wsgi_application … -
search non index fields in django vs making them keys
This is a general question about searching on a non-indexed field in Django 2.2 If I have a model with class Policy(models.Model): policy_no = models.PositiveIntegerField() eff_date = models.DateTime(auto_now=False, auto_now_add=False) name_id = models.ForeignKey(InsuredName, on_delete=models.CASCADE) Now when the insured goes to my website and searches for his policy number. I do not have this as the primary key because you can have many policies endorsements(change in coverage) during a policy term. There can be millions of policies. Should I use the following model setup instead to add policy number as an indexed field? class Policy(models.Model): policy_no = models.PositiveIntegerField(db_index=True) eff_date = models.DateTime(auto_now=False, auto_now_add=False) name_id = models.ForeignKey(InsuredName, on_delete=models.CASCADE) Also is it a good practice if you are going to order by, or filter by, it should be indexed. Please let me know if this is the correct way to make a field indexed. Thank you I need to know what approach is better? Nonindex field vs indexed class Policy(models.Model): policy_no = models.PositiveIntegerField() eff_date = models.DateTime(auto_now=False, auto_now_add=False) name_id = models.ForeignKey(InsuredName, on_delete=models.CASCADE) vs class Policy(models.Model): policy_no = models.PositiveIntegerField(db_index=True) eff_date = models.DateTime(auto_now=False, auto_now_add=False) name_id = models.ForeignKey(InsuredName, on_delete=models.CASCADE) Also is it a good practice if you are going to order by, or filter by, it should be indexed. … -
Form not raising ValidationError on creation, only when instance is updated
I have kind of a strange error when I try to clean my instance data. My instance is running a clean method to create a condition where the required stock needs to be less than the actual stock. Even so, the method only works when the instance its updated, and not when the instance is created. Another strange behavior is that I have in console the error printing "validation error raised", but the actual error is not raising ONLY when created. I am not very sure if I am triggering the method in a good way. class SaleItemForm(forms.ModelForm): def __init__(self, *args, **kwargs): super(SaleItemForm, self).__init__(*args, **kwargs) self.fields['client'].queryset = Associate.objects.filter(status="CLIENT") class Meta: model = SaleItem exclude = () # validate clean information def clean(self): cleaned_data = super().clean() print("CLEAN COUNT") product_temp = cleaned_data.get('product') count_temp = cleaned_data.get('count') product_stock = Product.objects.get(id=product_temp.id).stock print("Count:{}".format(count_temp)) print("Stock:{}".format(product_stock)) if count_temp > product_stock: print("validation error raised") self.add_error('count','Not possible to obtain more items than allowed') -
Display profile image in nav bar
I am building my own blog site. I managed to have the users upload their own profile pic and have it displayed beside their post but now i want to have that same image be displayed in the navbar as a profile image but when i do it the same way i did it with the posts it doesnt work and looks like this. For the posts i made a profile image model and accessed the variable from within the html file but the same method does not work for displaying it in the nav bar. I am using python and django for backend. This is my model code for the profile image: from django.db import models from django.contrib.auth.models import User from PIL import Image 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, *args, **kwargs): super().save(*args, **kwargs) img = Image.open(self.image.path) if img.height > 300 or img.width > 300: output_size = (300, 300) img.thumbnail(output_size) img.save(self.image.path) This is how i reference it in my html file for displaying next to posts: <img class="rounded-circle article-img" src="{{ post.author.profile.image.url }}" id="img"> What am I doing wrong?
