Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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Mixing public and private FileField uploads to the same S3 bucket
I use django-storages' S3Boto3StorageBackend with an implicit AWS_DEFAULT_ACL of public-read. That is the desired value for 90% of my uploads. However, I want one FileField in one model to upload with an ACL of bucket-owner-read. What would be the best way to achieve this? Is there an option to override the default ACL on field level? Is there an alternative to django-storages that does support it? -
Django query slow relative to raw SQL
I use matches.query.__format__('') to print the raw SQL that a Django query will execute. If I execute that query directly in psql it takes 5-10ms, while the Django query as timed below can take up 100ms the first time it's executed. Losing 100ms is a lot (will have to run a second query - so that's 2 x 100ms - add in latency and users easily notice). Is this normal? Am I missing something? def api(request): tag = request.GET.get('q', '') matches = Relationship.objects.filter(keyword=tag, count__gte=3).order_by('-count')[:30] print(matches.query.__format__('')) # get raw SQL query here start_time = time.time() print(matches) # lazy query executed here print("Time elapsed {0:0.1f}ms".format((time.time() - start_time) * 1000)) mydict = serialize_matches(matches, tag) return JsonResponse(mydict) -
Scrapy works on local, but does not on production
I have deployed my Django+Scrapy project, have running scrapyd. But when I try to run the spider, it finishes without actually scrapping info with those stats: {'memusage/startup': 92348416, 'scheduler/enqueued': 1, 'scheduler/dequeued': 1, 'downloader/request_bytes': 628, 'httperror/response_ignored_status_count/403': 1, 'finish_time': datetime.datetime(2018, 5, 21, 22, 6, 38, 333018), 'downloader/response_status_count/403': 2, 'downloader/request_method_count/GET': 2, 'downloader/response_bytes': 4992, 'downloader/response_count': 2, 'start_time': datetime.datetime(2018, 5, 21, 22, 6, 33, 894037), 'response_received_count': 2, 'memusage/max': 92348416, 'scheduler/dequeued/disk': 1, 'httperror/response_ignored_count': 1, 'downloader/request_count': 2, 'finish_reason': 'finished', 'scheduler/enqueued/disk': 1} Does that mean that my first request got rejected with 403 error? Why that might work on local, but does not on production? As I have read that might be caused by wrong USER_AGENT setting, but i have already set this like: USER_AGENT='Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.36 Safari/' As I said - it works on local, not on production. P.S. Here are stats from the same spider running on local: { "start_time": "2018-05-22 14:25:45.857504", "scheduler/enqueued/disk": "89", "scheduler/enqueued": "89", "scheduler/dequeued/disk": "89", "scheduler/dequeued": "89", "downloader/request_count": "101", "downloader/request_method_count/GET": "101", "downloader/request_bytes": "39724", "downloader/response_count": "101", "downloader/response_status_count/200": "101", "downloader/response_bytes": "1901849", "response_received_count": "101", "request_depth_max": "1", "file_count": "88", "file_status_count/uptodate": "77", "item_scraped_count": "88", "file_status_count/downloaded": "11", "finish_time": "2018-05-22 14:26:31.596248", "finish_reason": "finished", } -
django stream json - invalid json output
I use Django to stream a response. The streaming part is currently working fine, but I am having problems in producing a valid JSON response with this stream. So I have a class object with an attribute called "solutions", which i want to return at different times, since, in the background, this object is being updated by other functions. So I have a generator which, periodically, yields this solution object. Upon returning the object for the first time, it works fine. I get something like {"data_1": ...}. After the second yield however, the json content is not valid, because it becomes something like {"data_1": ...} {"data_1": ...}. Basically, after the first stream, adding more data to the return stream will make the json content invalid. Any ideas on how to overcome this problem? -
Postman post urlencode chinese characters, Django tastypie cant get it
I have a issue to get chinese characters in postman, which submit urlencode to my django tastypie server. In APIs, i cant get chinese character. any code can be used to handle that ? I am using Django 1.8 and Python 2.7 Thanks, ThanhTruong -
Local development with Django
I am using dnsmasq on my mac in order to force the domain I'm developing for (example.com) to resolve to localhost. This means that if I go to http://example.com:8000, it uses the local development server, which is what I want. But it also means that if I try and go to the real example.com, that doesn't resolve to the real site, obviously - it's using localhost. Is there a way for me to develop locally with port 8000 but also be able to view the real site (without a port - or port 80)? -
Django drowpdown list check which item is selected
I have a drowpdown list field in my model. I want to verify which item the user has selected in the list and display different contents according. In My model.py class Post(models.Models): select=(('item1','item1'),('item2','item2')) name=models.CharField(max_length=100,null=True) items=models.CharField(max_length=100, choices=select,null=True) Assuming my view is alright . With a dictionary {'item':item} pass to the template . My template i tried this {% for itemall in item %} {% for selected in item.items %} <!to loop through all the items--> {% if selected == item1%} <!-- display content {% else %} <!-- display content--> {% endif %} {% endfor %} {% endfor %} But this is not working . Please i need help . -
django.db.utils.operationalError: (2059,"Authentication Plugin 'caching_sha2_password'")
I am trying to connect my django project 'mysite' to mysql. I made a user in mysql and granted it all privileges to access the project. These are the changes I made to settings.py : DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'mysitedb', 'USER': 'username', 'PASSWORD': 'password', 'HOST': 'localhost', 'PORT': '', } } Now when I try to migrate the database using python3 manage.py makemigrations, I get the following error: django.db.utils.OperationalError: (2059, "Authentication plugin 'caching_sha2_password' cannot be loaded: /usr/lib/mysql/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory")</code></pre> The complete stack trace is as follows: Traceback (most recent call last): File "/home/prabhjeet/.local/lib/python3.5/site-packages/django/db/backends/base/base.py", line 216, in ensure_connection self.connect() File "/home/prabhjeet/.local/lib/python3.5/site-packages/django/db/backends/base/base.py", line 194, in connect self.connection = self.get_new_connection(conn_params) File "/home/prabhjeet/.local/lib/python3.5/site-packages/django/db/backends/mysql/base.py", line 236, in get_new_connection return Database.connect(**conn_params) File "/usr/lib/python3/dist-packages/MySQLdb/__init__.py", line 81, in Connect return Connection(*args, **kwargs) File "/usr/lib/python3/dist-packages/MySQLdb/connections.py", line 204, in __init__ super(Connection, self).__init__(*args, **kwargs2) _mysql_exceptions.OperationalError: (2059, "Authentication plugin 'caching_sha2_password' cannot be loaded: /usr/lib/mysql/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory") The above exception was the direct cause of the following exception: Traceback (most recent call last): File "manage.py", line 15, in <module> execute_from_command_line(sys.argv) File "/home/prabhjeet/.local/lib/python3.5/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line utility.execute() File "/home/prabhjeet/.local/lib/python3.5/site-packages/django/core/management/__init__.py", line 365, in execute self.fetch_command(subcommand).run_from_argv(self.argv) … -
Why do I get a 404?
I am trying to follow this tutorial https://simpleisbetterthancomplex.com/tutorial/2017/03/13/how-to-create-infinite-scroll-with-django.html but for some reason when I try to load the page I get django.template.exceptions.TemplateSyntaxError: Invalid block tag on line 1: 'static'. Did you forget to register or load this tag? "GET / HTTP/1.1" 500 141448`` "GET / HTTP/1.1" 200 167 "GET /static/js/jquery-3.1.1.min.js HTTP/1.1" 404 1690 "GET /static/js/jquery.waypoints.min.js HTTP/1.1" 404 1702 "GET /static/js/infinite.min.js HTTP/1.1" 404 1678 "GET /static/js/jquery.waypoints.min.js HTTP/1.1" 404 1702 "GET /static/js/infinite.min.js HTTP/1.1" 404 1678 base.html {% load static from staticfiles %} <script src="{% static 'js/jquery-3.1.1.min.js' %}"></script> <script src="{% static 'js/jquery.waypoints.min.js' %}"></script> <script src="{% static 'js/infinite.min.js' %}"></script> home.html {% extends 'base.html' %} {% block content %} <div class="infinite-container"> {% for number in numbers %} <div class="infinite-item">{{ number }}</div> {% endfor %} </div> {% if numbers.has_next %} <a class="infinite-more-link" href="?page={{ numbers.next_page_number }}">More</a> {% endif %} <script> var infinite = new Waypoint.Infinite({ element: $('.infinite-container')[0] }); </script> {% endblock %} views.py from django.shortcuts import render from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger def home(request): numbers_list = range(1, 1000) page = request.GET.get('page', 1) paginator = Paginator(numbers_list, 20) try: numbers = paginator.page(page) except PageNotAnInteger: numbers = paginator.page(1) except EmptyPage: numbers = paginator.page(paginator.num_pages) return render(request, 'home.html', {'numbers': numbers}) settings.py INSTALLED_APPS = [ 'jquery', 'feedApp', 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', … -
drop down with multiselect django
How can I create a drop down list for category with multiselect in django. I want the list to be populated from the model Category. And also if the user doesnt find the desired category he should be able to add it to the list. Thanks. -
How to order Django queryset by an attribute of the parent model?
I have a Profile model that extends the Django User model, class Profile(models.Model): user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, null=False, blank=True) weight = models.DecimalField(max_digits=5, decimal_places=2, null=True, blank=True) height = models.DecimalField(max_digits=5, decimal_places=2, null=True, blank=True) activity_level = models.DecimalField(max_digits=2, decimal_places=1, null=True, blank=True) tdee = models.IntegerField(null=True, blank=True) def __str__(self): return self.get_username() and when I try to access the queryset: queryset = Profile.objects.all().order_by('-date_joined') it says FieldError at /users/ Cannot resolve keyword 'date_joined' into field. Choices are: activity_level, height, id, set, sex, tdee, user, user_id, weight How do I order my queryset by the attribute from the parent model of the Profile class, which in this case is the User model? Thanks in advance. -
ModuleNotFoundError: No module named 'django.contrib.registration'
django version 2.0 urls.py from django.contrib import admin from django.urls import path from django.contrib.auth import views as auth_views urlpatterns = [ path('admin/', admin.site.urls), path('login/',auth_views.login,{'template_name': 'registration/login.html'},name ='login'), path('logout/',auth_views.logout,name = 'logout') ] template/registration/login.html {% block content %} <h2>Login</h2> <form method="post"> {% csrf_token %} {{ form.as_p }} <button type="submit">Login</button> </form> {% endblock %} but its showing error no module named django.contrib.resitration what am i doing wrong thank you -
Basic Questions for Django ACH with Stripe
I'm wanting to set up ACH payments in my django app. I see that stripe does it, however, I'm not sure how to implement it. According to the documentation you can use stripe.js to collect the customer's bank account. I need help with the flow. Do I first use html page to collect the bank info, use stripe.js to add that to Stripe and acquire a token which I then attach it to a Customer? Does anyone know of any django stripe ach guides? I've been looking around and it seems so new that there isn't really anything out there. -
django_cron doesn't seem to lock task
I'm using django 1.10 and the django_cron package (0.5.0). That package suppose to lock the task while it's running by default, so it won't be running on other servers. Seems like in our project (that hosted on 3 servers) - it runs 3 times every hour (that's the schedule) I didn't change anything in the configuration as I understand it should lock tasks by default. This is the task: class CreateMissingItems(CronJobBase): RUN_EVERY_MINS = 60 schedule = Schedule(run_every_mins=RUN_EVERY_MINS) code = 'CreateMissingItems' # a unique id def do(self): MyLog().info(message="Starting scheduled task of creating missing items") call_command('create_missing_items') crontab task is running basically every 20 minutes. Am I missing anything? -
changing method for @property within Django model
I have a property specified within a model as follows: @property def full_address(self): lines = filter(None, [self.address1, self.address2, self.city, self.region) return ', '.join(lines) My understand was/is that the @property decorator allowed me to call a method like a field so that it would calculate the and return the new address. Since I want to include the postcode, which is already a field within the model, I simply did the following, which I naively thought would work: @property def full_address(self): lines = filter(None, [self.address1, self.address2, self.city, self.region, self.postcode]) return ', '.join(lines) This is a Django 1.4 application. It doesn't work. Could anyone advise what I am doing incorrectly. -
Django REST Framework -- Serializing many-to-many table relationships
I'm creating an API for a website for which I have a table with Books, another with Hashtags (which basically is a catalog of hashtags, e.g. "#traveling" ) and an intermediate table to establish many-to-many relationships between Books and Hashtags. My models are: # models.py class Books(models.Model): id_books = models.AutoField(primary_key=True) title = models.CharField(max_length=150) class Hashtags(models.Model): id_hashtags = models.AutoField(primary_key=True) hashtag = models.CharField(max_length=150) class Books_Hashtags(models.Model): id_books_hashtags = models.AutoField(primary_key=True) id_books = models.ForeignKey(Books, on_delete=models.CASCADE) id_hashtags = models.ForeignKey(Hashtags, on_delete=models.CASCADE) class Meta: unique_together = ("id_books", "id_hashtags") I'd like to have an API that provides an output like this: [ { "id_books": 1, "title": "The Hobbit", "hashtags": [ { "id_hashtags": 1, "hashtag": "fantasy" }, { "id_hashtags": 2, "hashtag": "fiction" }, { "id_hashtags": 3, "hashtag": "middle earth" }, ] } ] For this purpose I've serialized the models above using DRF following some examples that I've found online: #serializers.py from rest_framework import serializers from app.models import Books, Books_Hashtags, Hashtags class HashtagsSerializer(serializers.ModelSerializer): hashtags = serializers.CharField() class Meta: model = Hashtags fields = ('hashtag',) class Books_HashtagsSerializer(serializers.ModelSerializer): id_hashtag = HashtagsSerializer(many=True, read_only=True) class Meta: model = Books_Hashtags fields = ('id_hashtags',) class BooksSerializer(serializers.ModelSerializer): id_books = serializers.IntegerField() id_books_hashtags = Books_HashtagsSerializer(many=True, read_only=True) title = serializers.CharField() class Meta: model = Books fields = ('id_books', 'title', 'id_books_hashtags',) … -
Django Service Worker Not Responding With Cache
I am trying to implement a simple service worker for my django app. Once I can get this right I know I can move forward with more interesting implementations. The Application bit in the Chrome inspector shows the service worker registered successfully and the cache storage also shows that the files have been cached successfully. When I reload the console log shows the fetch event is indeed firing. However, when i make it offline it gives a network error?? It doesn't return with the cache response? Why Not? Code: I have a simple html template: <head> <link rel="stylesheet" href="/static/css/animate.css"> </head> <body> <h1 class="animated bounce">Checking</h1> <script> if('serviceWorker' in navigator) { navigator.serviceWorker .register('/service-worker.js') .then(function() { console.log("Service Worker Registered"); }); } </script> </body> My service-worker.js is in my root using the known method for doing this (for django): url(r'^service-worker.js', (TemplateView.as_view( template_name="areacheck/service-worker.js", content_type='text/javascript', )), name='service-worker.js'), My service-worker.js var CACHE_NAME = 'qhive-v1'; var urlsToCache = [ '/', '/static/css/animate.css' ]; console.log('starting install'); self.addEventListener('install', function(event) { // Perform install steps event.waitUntil( caches.open(CACHE_NAME) .then(function(cache) { console.log('Opened cache'); return cache.addAll(urlsToCache); }) ); }); self.addEventListener('fetch', function(event) { console.log('fetching'); event.respondWith( caches.match(event.request).then(function(response) { return response || fetch(event.request); }) ); }); -
Why is this django form not valid?
Why is this form not validating. It is not even calling the clean() method? forms.py: class SingleSampleForm(forms.Form): sample_id = forms.CharField(label='Sample ID:') class Meta: fields = ('sample_id',) def __init__(self, *args, **kwargs): super(SingleSampleForm, self).__init__() self.helper = FormHelper() self.helper.layout = Layout( Field('sample_id', css_class="search-form-label",), Submit('submit', 'Search sample', css_class='upload-btn') ) self.helper.form_method = 'POST' def clean(self): print('CLEAN') sample_id = self.cleaned_data['sample_id'] if sample_id: return sample_id raise ValidationError('This field is required') views.py: class SampleView(View): sample_form = SingleSampleForm def get(self, request, *args, **kwargs): sample_form = self.sample_form() self.context = {'sample_form': sample_form,} return render(request, 'results/single_sample_search.html', self.context) def post(self, request, *args, **kwargs): self.sample_form = self.sample_form(request.POST) if self.sample_form.is_valid(): print('Valid') else: print('not valid') self.context = { 'sample_form': self.sample_form, } return render(request, 'results/single_sample_search.html', self.context) I dont understand why it is not even calling the clean() method. I have another form which is almost identical which validates. When i print dir(self.sample_form) after I have passed the request.POST dict - it states that validation=unknown. Why is this? How do I check the reason it is not validating? -
Creating generic view decorator with an extra parameter
While trying creating a decorator to wrap my application views, I couldn't passing a parameter to my decorator. my views looks like this: @api_view(['GET', 'POST']) @permission_classes((IsAuthenticated,)) def some_view(request): the problem is, that in addition of the request, I want to pass an extra argument to my generic view. I tried this: @api_view(['GET', 'POST']) @permission_classes((IsAuthenticated,)) @generic_view("some argument") def some_view(request): with this generic_view: def generic_view(argument): def _method_wrapper(func): def decorator(request, *args, **kwargs): do something with argument return func(request) return decorator return _method_wrapper Ideas? btw i'm using django 1.8, python 2.7. -
how to do a nested multi select tree in django
How can I do a nested multi select tree using django model form and the select tree will have more than 400 items I've been searching on the internet but I didn't find something suitable for this problem, Does anyone has a tutorial that I can read ? thanks in advance. -
Django, access html form field value sent from JQuery AJAX
forms: class TransactionForm(forms.ModelForm): CHOICES = ((1, 'Buy'), (2, 'Sell'),) coin = forms.ModelChoiceField(queryset = Coin.objects.all()) buysell = forms.ChoiceField(choices = CHOICES) field_order = ['buysell', 'coin', 'amount', 'trade_price'] class Meta: model = Transaction fields = {'buysell', 'coin', 'amount', 'trade_price'} def __init__(self, coin_price = None, user = None, *args, **kwargs): super(TransactionForm, self).__init__(*args, **kwargs) print("Transaction form init: ", user, coin_price) if user: self.user = user qs_coin = Portfolio.objects.filter(user = self.user).values('coin').distinct() print("qs_coin test: {}".format(qs_coin)) self.fields['coin'].queryset = qs_coin if coin_price: print("coin price test") self.coin_price = coin_price self.fields['price'] = self.coin_price jquery snippet: $('#id_buysell').on('change', function(){ console.log("buysell"); console.log($('#id_buysell').val()); var $formData = $(this).attr("id_buysell"); console.log($formData.val()); $.ajax({ method: "GET", url: "/myportfolio/add_transaction", data: $formData, }); }); $('#id_coin').on('change', function(){ console.log("coin change") var $formData = $(this).attr("id_coin"); console.log($formData.val()); $.ajax({ method: "GET", url: "/myportfolio/add_transaction", data: $formData, }); }); views snippet def add_transaction(request): print(request.method) print("test1") print(request.GET) if request.method == "GET": if request.is_ajax(): print("ajax test") data = { 'test': "test1" } form = TransactionForm(user = request.user, coin_price = GetCoin("Bitcoin").price) return JsonResponse(data) In my jquery functions I declare var $formData = $(this).attr("id_coin"); and then pass it to the view with GET. However I'm not sure how to actually get this data in my view. So how can I access this value? If I wanted to print it to see this value … -
IIS execute Django app in multiple python cells
I have a Django web application which make some predictions and I host it in a Windows VM with 2 CPU Cores and 8GB RAM. When my app starts and every 1 hour go to a local folder and read a variable file (2.5GB) in order to make the predictions I want. All works great in case of response time and the performance but when I am running a Load Balance test in task manager appears 4 python cells instead of 1 and all of them have the loaded file (2.5GB each) in memory, as a result RAM and CPU usage 90+% and it automatically restarts without response to the requests. Is the IIS the problem ? Is there any way to prevent that ? -
Django: Unable To Replace The Default User Model With Custom User Model
I am unable to replace default django user model with my own custom user model. yes, i have AUTH_USER_MODEL = 'appName.modelName' set in settings.py here's my code settings.py INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'userProfile', 'user_authorisation', ] AUTH_USER_MODEl = 'userProfile.myUser' userProfile/models.py https://dpaste.de/Aerm userProfile.forms.py https://dpaste.de/0eOO userProfile/admin.py https://dpaste.de/Rm5S After all this, Default user model is still showing in django admin and also, when creating super user via the command python manage.py createsuperuser , it is creating the super user of the default user model. -
How to connect mysql database in python django using MySQL ODBC Driver
I have a very old MySQL 4.0 server. We have a database, and the required table, on the basis of which I want to create a model in Django. Trying to connect like this: DATABASES = { 'default': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'DjangoSite', 'USER': 'DjangoUser', 'PASSWORD': 'DjangoUserPassword', 'HOST': 'localhost', 'PORT': '3306', }, 'OldDB': { 'ENGINE': 'django.db.backends.mysql', 'NAME': 'name', 'USER': 'User', 'PASSWORD': 'Password', 'HOST': '192.168.0.1', 'PORT': '3306', } } ... i get: Traceback (most recent call last): File "manage.py", line 15, in <module> ... File "/mnt/LinuxShare/ll_env/lib/python3.5/site-packages/MySQLdb/__init__.py", line 86, in Connect return Connection(*args, **kwargs) File "/mnt/LinuxShare/ll_env/lib/python3.5/site-packages/MySQLdb/connections.py", line 204, in __init__ super(Connection, self).__init__(*args, **kwargs2 django.db.utils.OperationalError: (2027, 'Malformed packet') The same problem when using MySQL Workbench 8.0 (2027, 'Malformed packet') If I use a script using import pyodbc connection = pyodbc.connect('Driver={MySQL ODBC 3.51 Driver}; Server=192.168.0.1; Port=3306; DataBase=name; UID=User; PWD=Password') cursor = connection.cursor() #Sample select query cursor.execute("SELECT @@version;") row = cursor.fetchone() while row: print (row[0] ) row = cursor.fetchone() it works.. 4.0.12-nt ------------------ (program exited with code: 0) How to configure in this case DATABASES = { or is there another way to get a model? Thanks. -
python-Django Multi-users signups
I spent quite some time trying to find the right solution to my problem but nothing worked, I will appreciate your help. My Goal is to have 2 users with common signup / login (working fine up to here) the problem starts when I try to add an other Form To define the new user type and update its profile. For my project I need -- a Seeker and a Provider (where provider can be both seeker and Provider ). thanks in advance: My model : class CustomUser(AbstractUser): phone_number = models.CharField(max_length=50, blank=False) is_provider = models.BooleanField(default=False) is_seeker = models.BooleanField(default=True) def __str__(self): return '%s , %s' %('username', 'email') class Seeker(models.Model): user = models.ForeignKey(CustomUser, on_delete=models.CASCADE) avatar = models.ImageField(upload_to='profiles/avatar' , name='avatar') birth_date = models.DateField() location = models.CharField(max_length=300) credit_card = models.BigIntegerField(max_length=None) company_name = models.CharField(max_length=100) address1 = models.CharField(max_length=100, blank=True ) address2 = models.CharField(max_length=100, blank=True) city = models.CharField(max_length=100, blank=False) country = CountryField def __str__(self): return '%s / %s' %('user.username', 'country') class Provider(models.Model): user = models.ForeignKey(Seeker, on_delete=models.PROTECT) service = models.ManyToManyField(Service) price = models.IntegerField(null=True) photo_id = models.FileField(storage=fs, blank=True) bank_account = models.FileField(storage=bk, blank=True) iban = models.CharField(max_length=200, name='iban') self_presentation = models.TextField(max_length=1000) is_available = models.BooleanField(default=True) availability = models.DurationField(null=True) joined_as_provider = models.DateTimeField(auto_now_add=True) def __str__(self): return '%s , %s , %s -- %s' % …
