Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Error installation custom django app package
I'm trying to install in a Django project my own package but when add the app to INSTALLED_APPS through the next error: ModuleNotFoundError: No module named 'django_dashboards_app' Code pypi Anybody could help me please ? Thanks in advance. -
ModuleNotFoundError: No module named 'xmltodict' - getting this error in python shell
I am getting this error even though I installed the python package. ` from django import forms from xmlform.models import MultiLookupValue, MultiLookup import json import xmltodict with open("C:/Users/Adithyas/Desktop/copy/xmlinvoice/xmlform/Supplier.xml") as xml_file: data_dict = xmltodict.parse(xml_file.read()) json_data = json.dumps(data_dict) y = json.loads(json_data) def importx(): i = [] for i in range(1, 48950): record = y['objects']['record'][i] x = MultiLookupValue.objects.create(value=record) x.save() ` This is my code. I am trying to run this code on python shell but getting this error. This is my code. I am trying to run this code on python shell but getting this error. -
How to pass params query string in django GET request?
My path: path('<str:link>/', ListUserSearchView.as_view()), My View: class ListUserSearchView(APIView): def get(self, request, link): url = "baseurl" querystring = {"track_url": f'{link}'} headers = { "X-RapidAPI-Key": "apikey", "X-RapidAPI-Host": "apihost" } response = requests.request("GET", url, headers=headers, params=querystring) data = response.text return Response(data) I would like to pass the link from params but this does not work, any help ? -
How do i store connections to other website on a server?
I am currently trying to write an application, which collects data from various websites using their APIs. How would i store/manage connections to those websites, so that the users do not have to log in every time they use the application? -
Add one year license to my Django project made by me for a pathology lab
So I have made a project for a pathology Lab. They will be using it in localhost. I now have hand it over to them. But I want to a one year expiry license to it. so one year later I will have to offer them another license. so is it possible I can do that? I tried searching for it over the internet but found nothing! -
AttributeError: 'coroutine' object has no attribute 'all'
I'm running Django 4.1 and for ModelChoiceField I need to pass a queryset, but async function passes coroutine. So, is there any way to handle this? async def get_currency_queryset(): return await sync_to_async(Currency.objects.all)() class AddOfferForm(forms.ModelForm): currency_to_sell = forms.ModelChoiceField( queryset=get_currency_queryset(), empty_label="Choose currency", widget=forms.Select(attrs={"class": "form-select"}), ) -
Docker server on Django [closed]
I was using docker in my Django project. But due to some issue, I uninstalled docker from my system. But now I am trying to run the server(localhost). But the server name is showing 'kubernetes.docker.internal'. Could anyone help to resolve this problem? -
Django restAPI: How to split up frontend and backend
I have the following setup: I have a django-project containing of a frontend and a backend. The frontend is the portal, where the user can login, manage their account and create/delete API-keys used in the backend. The backend is a restAPI for which the an API key (created by the user) is required. I use djangorestframework and djangorestframework-api-key. So far so good. The problem now is: How to separate frontend and backend properly? Ideally, frontend and backend should have as little dependencies on each other as possible, Of course, both need access to the API-keys which right now is done via a Django-model. This however leads to code-duplication (same model required in both frontend and backend). This feels a little shady to me.... What is the best way to achieve that? Is there something fundamentally wrong in the setup? I have tried "separating" the two by defining only the table-layout, but this then simply leads to two "independent" implementations of the model in front- and backend. Feels like the same thing as described above. Any suggestions are appreciated! -
in Django, I use sweetalert2
I have used sweetalert2 to pop up messages, it works great when page return render but when I used return redirect not works there is something I need to add it. any helps Thanks I want a sweetalert2 to pop up when the user submit forms in Django views messages.success(request, 'yes') return render(request, 'app/home.html') Not pop up messages.success(request, 'yes') return redirect('app:home') in html page {% for message in messages %} <script src="//cdn.jsdelivr.net/npm/sweetalert2@11"></script> {% if message.tags == 'success' %} <script> Swal.fire( 'good', '{{message}}', 'success' ) </script> {% endif %} {% endfor %} -
How to upload multiple images to a django product model using DRF
Currently I am able to upload only 1 image per product. My Model class Product(models.Model): user = models.ForeignKey(User, on_delete=models.SET_NULL, null=True) name = models.CharField(max_length=200, null=True, blank=True) image = models.ImageField(null=True, blank=True, default='/placeholder.png') brand = models.CharField(max_length=200, null=True, blank=True) category = models.CharField(max_length=200, null=True, blank=True) description = models.TextField(null=True, blank=True) rating = models.DecimalField( max_digits=7, decimal_places=2, null=True, blank=True) numReviews = models.IntegerField(null=True, blank=True, default=0) price = models.DecimalField( max_digits=7, decimal_places=2, null=True, blank=True) countInStock = models.IntegerField(null=True, blank=True, default=0) createdAt = models.DateTimeField(auto_now_add=True) _id = models.AutoField(primary_key=True, editable=False) This is my serializer class ProductSerializer(serializers.ModelSerializer): reviews = serializers.SerializerMethodField(read_only=True) class Meta: model = Product fields = '__all__' def get_reviews(self, obj): reviews = obj.review_set.all() serializer = ReviewSerializer(reviews, many=True) return serializer.data This is the views file @api_view(['GET']) def getProduct(request, pk): product = Product.objects.get(_id=pk) serializer = ProductSerializer(product, many=False) return Response(serializer.data) I am trying to also upload the images to a folder which has same product name if possible. -
Implement hmset in python with dictionary of list and nested dictionary
I was trying to implement below redis code into python django application hmset test_template:TEMPLATE_ID test_tags "[{\"key\":\"test_manual_entry_1\",\"value\":\"Some_value_1\"},{\"key\":\"test_manual_entry_2\",\"value\":\"Some_value_2\"}]" I have tried hset and hmset functions but both are giving the error. Below is sample of my code looks like this class RedisUtil: def hset(self, key_name, data): key_name = "test_template:TEMPLATE_ID" list_data = [{"key": "test_manual_entry_1", "value": "Some_value1"}, {"key": "test_manual_entry_2", "value": "Some_value2"}] data = {"test_tags": [json.dumps(d) for d in list_data]} # output list: ['{"key": "test_manual_entry_1", "value": "Some_value1"}', '{"key": "test_manual_entry_2", "value": "Some_value2"}'] I have tried below methods to save but all methods are giving me error # Method 1 self.redis_client.hset(key_name, data) # Exception: redis.exceptions.DataError: Invalid input of type: 'dict'. Convert to a bytes, string, int or float first. #Method 2 self.redis_client.hset(key_name, "test_tag", data["test_tags"]) # Exception: redis.exceptions.DataError: Invalid input of type: 'list'. Convert to a bytes, string, int or float first. Also, I would like add there that there may be case where my list will be empty, this could be an edge case. Thanks in advance for any help. -
How to add new site language in Django admin
I work on a project where we want to have multilingual site. We start with two languages defined in settings.py LANGUAGES = ( ("en-us", _("United States")), ("cs", _("Czech Republic")), ) Could someone tell me how we can control ( add or remove or disable ) languages from Django admin? I checked these but did not find the answer Adding new site language in Django admin How to manage system languages from django admin site? https://djangowaves.com/tutorial/multiple-languages-in-Django/ -
Page 404 error on clicking at the image link in django admins site
We have a django project in which we are storing images in the backend using image field.The image link is being stored on django admin site.However ,when I click on the link ,I get an error page.Here's my code. models.py images=models.ImageField(upload_to=upload_to,null=True) def upload_to(instance, filename): return 'images/{filename}'.format(filename=filename) urls.py urlpatterns = [ path('admin/', admin.site.urls), path('app/',include('firstapp.urls')), path('',include('firstapp.api.urls')), ]+ static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT) settings.py MEDIA_ROOT = os.path.join(os.path.dirname(BASE_DIR), 'media') # URL used to access the media MEDIA_URL = '/media/' I have created a folder named media but the images are not being stored there.Please help. -
Django template tag URL is not working in JavaScript
I want to add an edit button and delete image dynamically to table, but it is showing error Page Not Found at Request URL: http://127.0.0.1:8000/%7B%25%20url%20'expense-edit'%20expense.id%20%25%7D here is js file const searchField = document.querySelector("#searchField"); const tableOutput = document.querySelector(".table-output"); const appTable = document.querySelector(".app-table"); const paginationContainer = document.querySelector(".pagination-container"); tableOutput.style.display = 'none'; const noResults = document.querySelector(".no-results"); const tbody = document.querySelector(".table-body"); searchField.addEventListener('keyup', (e) => { const searchValue = e.target.value; if (searchValue.trim().length > 0) { paginationContainer.style.display = "none"; tbody.innerHTML = ""; fetch("http://127.0.0.1:8000/search-expenses", { body: JSON.stringify({ searchText: searchValue }), method: "POST", }) .then((res) => res.json()) .then((data) => { console.log("data", data); appTable.style.display = "none"; tableOutput.style.display = "block"; console.log("data.length", data.length); if (data.length === 0) { noResults.style.display = "block"; tableOutput.style.display = "none"; } else { noResults.style.display = "none"; data.forEach((item) => { tbody.innerHTML += ` <tr> <td>${item.amount}</td> <td>${item.category}</td> <td>${item.description}</td> <td>${item.date}</td> <td><a href="{% url 'expense-edit' expense.id %}" class="btn btn-secondary btn-sm">Edit</a><a href="{% url 'expense-delete' expense.id %}"><img src="{% static 'img/delete.png' %}" width="35" height="35"/></a></td> </tr>`; }); } }); } else { noResults.style.display = "none"; tableOutput.style.display = "none"; appTable.style.display = "block"; paginationContainer.style.display = "block"; } }); urls.py from django.urls import path from . import views from django.views.decorators.csrf import csrf_exempt urlpatterns = [ path('', views.home, name="home"), path('expenses', views.index, name='expenses'), path('add-expenses', views.add_expenses, name='add-expenses'), path('edit-expense/<int:id>', views.expense_edit, name='expense-edit'), path('expense-delete/<int:id>', views.delete_expense, … -
How to using order_by with custom function in model
In model MemberProduct I have a function get_member_rating where User can rating for the of their product So in views, I want to sort product ratings of that User by using the function in MemberProduct or any way can do the queryset then order_by member_rating. MemberProduct model class MemberProduct(TimeStampedModel): member = models.ForeignKey( "accounts.Member", related_name="member_product", on_delete=models.CASCADE, ) product = models.ForeignKey( Product, related_name="member_product", on_delete=models.CASCADE ) <some other fields> class Meta: unique_together = ( "member", "product", ) def get_member_rating(self): try: vote = Vote.objects.get(member=self.member, product=self.product) except Vote.DoesNotExist: return None else: return vote.rating Vote model class Vote(models.Model): rating = models.FloatField( validators=[MinValueValidator(0), MaxValueValidator(10)] ) product = models.ForeignKey( Product, related_name="votes", on_delete=models.CASCADE ) member = models.ForeignKey("accounts.Member", on_delete=models.CASCADE) class Meta: unique_together = ["product", "member"] -
django.urls.exceptions.NoReverseMatch | Django is working fine until I created custom signup page. In that specific page, django raises url tag error
I'm building my custom signup page using built-in django authentication. For some reason, my navbar is raising error that it can't read <li><a href="{% url 'jobs:job_list' %}">Browse Job</a></li> and that NoReverseMatch, knowingly that django only throws this error on that particular signup page. Other pages, this url tag is being read by django and it is working completely fine. I tried to delete the HTML page, nothing working. I'm looking for a solution in which my signup page get rendered successfully without being stopped by the NoReverseMatch error while reading my navbar url tag successfully. <li><a href="{% url 'jobs:job_list' %}">Browse Job</a></li> -
Update multiple Postgres timestamps
I am attempting to update timestamps for 100s of objects in Postgres 12 using the following query: UPDATE foo_bar AS c SET created_at = c2.created_at FROM (VALUES (101, '2021-09-27 14:54:00.0+00'), (153, '2021-06-02 14:54:00.0+00') ) as c2(id, created_at) WHERE c.id = c2.id; Where created_at represents a dateTimeField: created_at = models.DateTimeField(auto_now_add=True) I am receiving the following error: ERROR: column "created_at" is of type timestamp with time zone but expression is of type text I have tried many variations of the created_at values to no avail. Any idea why this is not working? -
How do you use v-for and/or v-if to show objects from a Django Postgres backend?
I'm trying to build something like a hierarchy tree in Vue3 that is pulling data from a Django Postgres backend. I've setup all of the models and have it all displaying in the frontend using Django Rest and Axios. The problem is it's showing everything in every branch of my hierarchy tree instead of just the "children" of that branch because I can't figure out how to filter it based on the foreign keys of my Django models. Basically, in the tree I have 4 Grandparents, each with 2 Parents under them, each with 2 Children under them. So 1 branch of the tree should be 1 Grandparent, then 2 Parents, then each with 2 Children. I can only get it to show each branch with 1 Grandparant with 4 Parents and 16 Children. The models look like this: class Grandparent(models.Model): grandparent_id = models.AutoField(primary_key=True) grandparent_name = models.CharField(max_length=40) class Parent(models.Model): parent_id = models.AutoField(primary_key=True) parent_name = models.CharField(max_length=40) grandparent_id = models.ForeignKey(Grandparent, on_delete=models.CASCADE) class Child(models.Model): child_id = models.AutoField(primary_key=True) child_name = models.CharField(max_length=40) parent_id = models.ForeignKey(Parent, on_delete=models.CASCADE) The hopefully relevant parts from my vue file look like this: created () { this.getGrandparents(), this.getParents(), this.getChildren(), }, data () { return { grandparents: [], parents: [], children: [] … -
Copy edx-platform in local system
I applyed bellow cammand but it's not working. docker cp -L edx.devstack.lms:/edx/app/edxapp/edx-platform/ /vscode-platform It gives this error in powershell. symlink ....\common\static\common c:\users\gautamrathore\desktop\vscode-platform\edx-platform\cms\static\common: a required privilege is not held by the client. I want to copy edx-platform in local system. -
Exception in thread django-main-thread Traceback
I am getting this error while trying to run a Django project. This happened when I cloned the project and run it for this first time, I am running it using a virtual environment (env1) C:\Users\Chiam\Desktop\fyp\odyera>python manage.py runserver Watching for file changes with StatReloader Performing system checks... Exception in thread django-main-thread: Traceback (most recent call last): File "C:\Users\Chiam\AppData\Local\Programs\Python\Python311\Lib\threading.py", line 1038, in _bootstrap_inner self.run() File "C:\Users\Chiam\AppData\Local\Programs\Python\Python311\Lib\threading.py", line 975, in run self._target(*self._args, **self._kwargs) File "C:\Users\Chiam\Desktop\fyp\odyera\env1\Lib\site-packages\django\utils\autoreload.py", line 64, in wrapper fn(*args, **kwargs) File "C:\Users\Chiam\Desktop\fyp\odyera\env1\Lib\site-packages\django\core\management\commands\runserver.py", line 134, in inner_run self.check(display_num_errors=True) File "C:\Users\Chiam\Desktop\fyp\odyera\env1\Lib\site-packages\django\core\management\base.py", line 475, in check all_issues = checks.run_checks( ^^^^^^^^^^^^^^^^^^ File "C:\Users\Chiam\Desktop\fyp\odyera\env1\Lib\site-packages\django\core\checks\registry.py", line 88, in run_checks new_errors = check(app_configs=app_configs, databases=databases) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\Chiam\Desktop\fyp\odyera\env1\Lib\site-packages\django\core\checks\urls.py", line 42, in check_url_namespaces_unique all_namespaces = _load_all_namespaces(resolver) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\Chiam\Desktop\fyp\odyera\env1\Lib\site-packages\django\core\checks\urls.py", line 61, in _load_all_namespaces url_patterns = getattr(resolver, "url_patterns", []) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\Chiam\Desktop\fyp\odyera\env1\Lib\site-packages\django\utils\functional.py", line 57, in __get__ res = instance.__dict__[self.name] = self.func(instance) ^^^^^^^^^^^^^^^^^^^ File "C:\Users\Chiam\Desktop\fyp\odyera\env1\Lib\site-packages\django\urls\resolvers.py", line 715, in url_patterns patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) ^^^^^^^^^^^^^^^^^^^ File "C:\Users\Chiam\Desktop\fyp\odyera\env1\Lib\site-packages\django\utils\functional.py", line 57, in __get__ res = instance.__dict__[self.name] = self.func(instance) ^^^^^^^^^^^^^^^^^^^ File "C:\Users\Chiam\Desktop\fyp\odyera\env1\Lib\site-packages\django\urls\resolvers.py", line 708, in urlconf_module return import_module(self.urlconf_name) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\Chiam\AppData\Local\Programs\Python\Python311\Lib\importlib\__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "C:\Users\Chiam\Desktop\fyp\odyera\client\views.py", line 3, in <module> import pyrebase ModuleNotFoundError: No module named 'pyrebase' Searched a … -
Calculate Business Days in Django Annotate
I wanted to calculate business days in Django annotate. For example, if an event was generated 7 days back, and I wanted to know how many business days had passed. As per the example, 7 days includes [Monday - Sunday], and I only wanted to include [Monday - Friday], which means 5 business days. I've done this logic via some pythonic hack, but I wanted to do this in Django annotate() method. So I can filter the results based on business days. Here is an example of what I've done so far: table_values = Table.objects.all().annotate(issue_severity=datetime.utcnow() - Max("event__created")) for table in table_values: date = datetime.now(timezone.utc) - table.issue_severity dates = (date + timedelta(x + 1) for x in range(table.issue_severity.days)) table.business_days = sum(day.weekday() < 5 for day in dates) -
Where should validation logic go in this DJANGO project
I have an existing python program which verifies coordinates are correct - by that I mean they are in the correct place, not a simple range check. In my Django project I want someone to be able to send these coordinates in, and use my existing code to verify they are correct before saving them to the model. My question is, where does this logic go? Do I put it in the view and reject the HTTP request, if the coordinates are invalid? - this seems simplest to me? Or does this go in the model somewhere, and I prevent invalid coordinates from being saved to the database? I'm new to Django, so not sure what is a good practice / idea. An issue I see with writing a custom validator(?) is these coordinates come in pairs. -
Django pass url context via function
I have a urlpattern in the urls.py file defined as path('profile/<str:uname>/', views.UserProfile, name='UserProfile'), I need to do the following at the return of my function in my views.py file, return render(request, 'UserProfile') How do I pass the 'uname' parameter in this return correctly? P.S. I don't know if this is even possible. -
Prevent people from seeing other user profile pictures
I created a field to allow a user to upload a profile picture. In the template I check if the user is logged in and there is a profile image, otherwise I display a generic one. How can you prevent someone from guessing other filenames to see another users profile picture? {% if user.is_authenticated and user.profile.image %} <span class="avatar avatar-sm" style="background-image: url({{ user.profile.image.url }})"></span> {% else %} <span class="avatar avatar-sm" style="background-image: url('/media/profile_pics/default.png)')"></span> {% endif %} -
Django - Programatically access property of model class (getattr throws Attribute Error)
I am overriding a Model's save method so I can log changes made to certain fields: class Model(models.Model): name = ... price = ... ... __original_name = None __original_price = None def save(self, force_insert=False, force_update=False, *args, **kwargs): for field in [ 'name', 'price', ]: print(self.__original_name) # works original_value = getattr(self, f"__original_{field}") # throws Attribute Error # other logic ... self.__original_name = self.name self.__original_price = self.price super(Model, self).save(force_insert, force_update, *args, **kwargs) Error thrown: AttributeError: 'Model' object has no attribute '__original_name' The method works correctly if I don't loop over the fields and access each field independently with self.__original_field, but I am trying to refactor the code so I can easily start tracking other fields as needed. Is there a different built in method I can use to access the value programatically? (cant use self[f"__original_{field}"] cause it is not subscriptable)
