Django community: RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
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UnboundLocalError : local variable 'album' referenced before assignment
i need help... im a beginner script display -
django - context processor variables are not being updated
I have several variables within a navbar that are to be displayed on every single template, so I've made a custom context processor to handle the fetching of those variables. Everything is working, except that when the data is changed in the database, the values of the context variables are not refreshed(for example it'll only get updated once I quit runserver and rerun). Here's my basic pseudo code: context_processor.py: foo = db.get('foo') bar = db.get('bar') def default(request): return {'foo': foo, 'bar': bar} base.html: {% block header %} foo value is: {{ foo }}, bar value is {{ bar}} {% endblock %} {% block content %} {% endblock %} some_other_template.html: {% extends "base.html" %} {% block content %} ...blabla {% endblock %} Is there something I am missing or is this normal behavior? Have I used the wrong approach of using a context processor here? -
What happens behind the scenes in 'Q' complex database queries?
I am trying to write a query that is as efficient as possible. Here is my problem: Assume I have 10 teachers objects, and each teacher has a 100 test objects (The test is related to the teacher by OneToOne relation). I have the unique slug of the each test, and so I can just look it up like this: CreateTest.objects.filter(slug__iexact= slug_name) But, this way seems very inefficient because Django will look for every test that has been created, and there is 1000 of them out there because there are 10 teachers. Instead, I am trying to do something like this: teacher=TeacherUser.objects.filter(user__username__iexact=self.request.user) teacher_test = teacher.createtest_set.filter(slug__iexact=slug_name) Now, it is getting all the tests from a specific user, and then it is searching for that test that is needed. I want to write that same thing using 'Q'. I thought about writing this: CreateTest.objects.filter(teacher__user__username=self.request.user, slug__iexact=self.kwargs['slug']) But, for some reason, I think that this is not doing what I want. It is checking if the teacher is the same, and the slug is the same. I want it first to get all the tests for a specific teacher. After that I wanted to query the test from only from that list. Any ideas … -
Django settings.py "psycopg2.OperationalError"
In my django project, I had a sqlite3 database, and I wanted to add another postgresql one, I followed the django docummentation and my settings code is : # Database DATABASES = { 'default': { 'ENGINE': 'django.db.backends.sqlite3', 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'), }, 'users': { 'NAME': 'app_data', 'ENGINE': 'django.db.backends.postgresql_psycopg2', 'USER': 'postgres_user', 'PASSWORD': 'pgdjango', 'HOST': 'localhost' } } and like the docummentation say, I should do a migrate like this : python manage.py migrate --database=users When I do that, I get an error : Traceback (most recent call last): File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\db\backends\base\base.py", line 213, in ensure_connection self.connect() File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\db\backends\base\base.py", line 189, in connect self.connection = self.get_new_connection(conn_params) File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\db\backends\postgresql\base.py", line 176, in get_new_connection connection = Database.connect(**conn_params) File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\psycopg2\__init__.py", line 130, in connect conn = _connect(dsn, connection_factory=connection_factory, **kwasync) psycopg2.OperationalError The above exception was the direct cause of the following exception: Traceback (most recent call last): File "manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\__init__.py", line 363, in execute_from_command_line utility.execute() File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\__init__.py", line 355, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\base.py", line 283, in run_from_argv self.execute(*args, **cmd_options) File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\base.py", line 330, in execute output = self.handle(*args, **options) File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\core\management\commands\migrate.py", line 83, in handle executor = MigrationExecutor(connection, self.migration_progress_callback) File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\db\migrations\executor.py", line 20, in __init__ self.loader = MigrationLoader(self.connection) File "C:\Users\elmou\AppData\Local\Programs\Python\Python36-32\lib\site-packages\django\db\migrations\loader.py", line … -
How do I set the value of a model object's property after using `get_field()`?
I'm making a terminal command for my Django app: from django.core.management.base import BaseCommand, CommandError from django.core.exceptions import FieldDoesNotExist from django.apps import apps class Command(BaseCommand): def add_arguments(self, parser): parser.add_argument( "--app", dest="app", required=True, ) parser.add_argument( "--model", dest="model", required=True, ) parser.add_argument( "--col", dest="col", required=True, ) def handle(self, *args, **options): app_label = options.get('app') model_name = options.get('model') column_name = options.get('col') try: model = apps.get_model(app_label=app_label, model_name=model_name) except LookupError as e: msg = 'The model "%s" under the app "%s" does not exist!' \ % (model_name, app_label) raise CommandError(msg) try: column = model._meta.get_field(column_name) except FieldDoesNotExist as e: msg = 'The column "%s" does not match!' % column_name raise CommandError(msg) else: print(column, type(column)) # Do stuff here with the column, model. Right now, column is <django.db.models.fields.IntegerField: column_name>. I want this instance of model to have column_name set to 100. How can I set and save this instance in this manner? -
django.core.exceptions.FieldError: Unknown field with datetime field in django modelform
I'm using django 1.8. When I use a datetime field, I get an error saying that the field is unknown. I checked many times that the name is spelled right. Any ideas what's going on here? class MyTable(models.Model): origin = models.PositiveIntegerField(null=True, blank=True) last_modified = models.DateTimeField(auto_now=True) class MyTableForm(ModelForm): class Meta: model = MyTable fields = ['origin', 'last_modified'] Traceback (most recent call last): File "manage.py", line 19, in <module> execute_from_command_line(sys.argv) File "/home/user/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 338, in execute_from_command_line utility.execute() File "/home/user/venv/lib/python2.7/site-packages/django/core/management/__init__.py", line 312, in execute django.setup() File "/home/user/venv/lib/python2.7/site-packages/django/__init__.py", line 18, in setup apps.populate(settings.INSTALLED_APPS) File "/home/user/venv/lib/python2.7/site-packages/django/apps/registry.py", line 115, in populate app_config.ready() File "/home/user/venv/lib/python2.7/site-packages/django/contrib/admin/apps.py", line 22, in ready self.module.autodiscover() File "/home/user/venv/lib/python2.7/site-packages/django/contrib/admin/__init__.py", line 24, in autodiscover autodiscover_modules('admin', register_to=site) File "/home/user/venv/lib/python2.7/site-packages/django/utils/module_loading.py", line 74, in autodiscover_modules import_module('%s.%s' % (app_config.name, module_to_search)) File "/usr/lib64/python2.7/importlib/__init__.py", line 37, in import_module __import__(name) File "/home/user/src/biosys/myapp/myapp/admin.py", line 6, in <module> from forms import * File "/home/user/src/biosys/myapp/myapp/forms.py", line 46, in <module> class InterpForm(ModelForm): File "/home/user/venv/lib/python2.7/site-packages/django/forms/models.py", line 295, in __new__ raise FieldError(message) django.core.exceptions.FieldError: Unknown field(s) (last_modified) specified for MyTable -
Mysql error 1049 prevents access to make corrections
I have developed a Django application and now find myself trying to host it on ubuntu 16.04. I'm following the DigitalOcean guides as far as possible. I started a database for a Django application, created a user for the application, granted privileges to that user and then decided to dump the database for some reason (I think I was planning to ensure that the Django model could be migrated from scratch, but this was just before Christmas.) If I try to log in to mysql I get Error 1049 (42000): Unknown database, and kicked back out to the shell - no interactive mysql. How can I fix this? It seems that mysql won't listen to me. -
Testing `CharField(unique=True)` in django with py.test
I'm working to move all tests for a django application over to py.test. One case I have not been able to overcome is testing that uniqueness constraints on model fields are enforced. An example test: # requirements.txt pytest pytest-django ... # myapp/models.py from django.db import models class UniqueModel(models.Model): unique_field = models.CharField(max_length=100, unique=True) # myapp/tests/test_unique_model.py from django.db import IntegrityError import pytest from myapp.models import UniqueModel def test_unique(self, db): unique_1 = UnqiueModel(unique_field='not-unique') unique_1.save() unique_2 = UniqueModel(unique_field='not-unique') with pytest.raises(IntegrityError): unique_2.save() This test fails: ... with pytest.raises(IntegrityError): > unique_2.save() E Failed: DID NOT RAISE <class 'django.db.utils.IntegrityError'> ... Any guidance? Thanks! -
Django Admin, accessing reverse many to many
I would like to have access to reverse many to many relationship on Django Admin (django.contrib.admin). class Company(models.Model): name = models.CharField(max_length=100) status = models.BooleanField() users = models.ManyToManyField(User, related_name='company') Right now I am able to see the User through Company on Django Admin but I cannot access the company through User. What is the correct way to have access to reverse relationship? -
How I can get user group permissions for django-admin fields?
In project, with custom django-admin, I create two groups with permissions, one group name "A" other is "B". My class is: class Card(models.Model): number = models.CharField(max_length=250, blank=True, null=True, default="") I want show to A group number field for only read, to B group for edit. How can I get request.user in my admin.py. for using query like this. from django.contrib.auth.models import Group class Card_Admin(admin.ModelAdmin): if Group.objects.get(name='A').user_set.filter(id=request.user.id).exists(): readonly_fields = ['number'] -
How to return python script response as Http response using Django framwork
I am using Python Django framwork, new to it. I am getting "None" in browser, not sure what is wrong in my code.. from django.http import HttpResponse def index(request): from amazon.api import AmazonAPI AMAZON_ACCESS_KEY = "cant share my key" AMAZON_SECRET_KEY = "cant share my key" AMAZON_ASSOC_TAG = "cant share my tag" REGION = "US" amazon = AmazonAPI(AMAZON_ACCESS_KEY, AMAZON_SECRET_KEY, AMAZON_ASSOC_TAG) products = amazon.search(BrowseNode='3760911', SearchIndex='Beauty', MaximumPrice='30') for i, product in enumerate(products, 1): return HttpResponse(print(str(product))) The code works like a charm when I run in python shell however it doesn't run in browser. -
Testing error: No module named 'app.post'
I'm trying to use Django's unit test feature. I've added a blank test.py under app/post/tests (along with __init__.py). However when I run python manage.py test post it returns ImportError: No module named 'app.post'. Any idea why it says this and how I can fix it? -
Create related field if it does not already exist
I have the following two Django model classes (names have been changed to protect the not-so-innocent): class Foo(models.Model) foo = models.CharField(max_length=25) class Bar(models.Model): foo = models.ForeignKey(Foo) And Django Rest Framework serializers for each model: class FooSerializer(serializers.ModelSerializer): class Meta: model = Foo fields = ('foo',) class BarSerializer(serializers.ModelSerializer): class Meta: model = Bar fields = ('foo',) Routes: urlpatterns = [ url(r'^foo/', ModelListView.as_view(model_class=Foo, serializer_class=FooSerializer), name='foo'), url(r'^bar/', ModelListView.as_view(model_class=Bar, serializer_class=BarSerializer), name='Bar'), ] Views: class ModelListView(ListCreateAPIView): model_class = None serializer_class = None def create(self, request, *args, **kwargs): data = JSONParser().parse(request) serializer = self.serializer_class(data=data, many=True) if serializer.is_valid(): serializer.save() return Response(serializer.data, status=HTTP_201_CREATED) return Response(serializer.errors, status=HTTP_400_BAD_REQUEST) To illustrate usage of the /bar route, the Bar model and its serializer, I wrote a test. I want to be able to specify the string value of the field foo. The POST request should use an existing instance of Foo if one already exists. Otherwise it should create it. class BarTest(UnitTest): def setUp(self): self.model_class = Bar self.fields = [{'foo': 'foo1'}, {'foo': 'foo2'}] self.url = reverse('bar') def test_post(self): data = JSONRenderer().render(self.fields) response = self.client.post(self.url, data=data, content_type='application/json') self.assertEqual(HTTP_201_CREATED, response.status_code) result = response.json() self.assertEqual(self.fields, result) I read Serializer Relations in the Django REST Framework documentation. It seems that either StringRelatedField or SlugRelatedField might fit my … -
How to use "rest_framework" routers with Django 2
I am aware that "Django 2 with router url patterns has changed". I cant manage to work with Router because I am getting an error : 'Specifying a namespace in include() without providing an app_name ' django.core.exceptions.ImproperlyConfigured: Specifying a namespace in include() without providing an app_name is not supported. Set the app_name attribute in the included module, or pass a 2-tuple containing the list of patterns and app_name instead. I have written a basic model and after that I have created an api folder, I have prepared files "views.py": from rest_framework import generics from yogavidya.apps.articles.models import Article from .serializers import ArticleSerializer from rest_framework import routers, serializers, viewsets class ArticleUpdateView(generics.RetrieveUpdateAPIView): lookup_field = 'pk' serializer_class = ArticleSerializer queryset = Article.objects.all() router = routers.DefaultRouter() router.register(r'api/articles', ArticleUpdateView, base_name='api-articles') after I have urls.py : from django.urls import path, include from django.conf.urls.i18n import i18n_patterns from .views import ArticleUpdateView from django.urls import re_path urlpatterns = [ re_path(r'articles/(?:page-(?P<page_number>\d+)/)?$', ArticleUpdateView.as_view(), name='article-update'), ] now I want to add the api to project urls.py from django.urls import path, include from django.conf.urls.i18n import i18n_patterns from django.contrib import admin from django.contrib.auth import views as auth_views from django.conf import settings from django.conf.urls.static import static from yogavidya.apps.articles import views from .views import home,home_files, pricing from … -
Django - how to make a complex math annotation
I have this model: class Image(models.Model): title = models.CharField(max_length=200) image = models.ImageField(upload_to='img/') signature = models.TextField(null = True) The signature is a numpy monodimensional vector encoded in json. In order to make my query, I have to decode each object signature into a nparray, and make a dot product between each object's signature and a given vector, then annotate as a float (named "score") field beside each raw. Lastly I have to order from max to min. I tried this in view.py def image_sorted(request): query_signature = extract_feat(settings.MEDIA_ROOT + "/cache" + "/003_ant_image_0003.jpg") # a NParray object image_list = Image.objects.annotate(score=np.dot( JSONVectConverter.json_to_vect(F('signature')), query_signature.T ).astype(float)).order_by('score') #JSONVectConverter is a class of mine return render(request, 'images/sorted.html', {'image_sorted': image_list}) of course it doesn't work. I think "F()" operator is out of scope... If you're wondering, I'm writing an image retrieval webapp for my university thesis. Thank you. -
Store raw data into .png file in python
>>> def qrcodegenerate(nbr): ... res = requests.get("https://chart.googleapis.com/chart?cht=qr&chs=300x330&choe=UTF-8&chl="+str(nbr)) ... print(res.url) ... data =res.text ... with open("C:\wamp\www\Paymentapi\qrcode\qr_"+str(nbr)+'.png','w',encoding="utf-8") as f: ... f.write(data) ... >>> qrcodegenerate(5697) Here I am calling API to generate qrcode and I want to save into png. Qrcode is generating but it not saving. -
Contactform in footer of page
I have a contactform in the footer of a website. So it is on every page. It works, with one problem: as soon as it is sent, it doesn't show anymore. More specific I guess when my request is no longer empty. @register.inclusion_tag('home/tags/contact.html', takes_context=True) def contact_form(context): request = context['request'] if request.method == 'POST': form = ContactForm(request.POST) if form.is_valid(): subject = form.cleaned_data['naam'] from_email = form.cleaned_data['email'] message = form.cleaned_data['bericht'] messages.success(request, 'Form submission successful') try: send_mail(subject, message, from_email, ['myemailaddress']) except BadHeaderError: return HttpResponse('invalid header found') return context else: form = ContactForm() return {request: 'context.request', 'form': form} Tips would be appreciated. -
Calculate price in models with django v2.1
I need your help about this app I'm making, in those models, I want the price of the topping and the type be calculated automatic in the model Pizza, so when someone record new data, he can choice the type and the topping and the price is calculated and save it in that table Pizza. class Type(models.Model): typeName = models.CharField( max_length = 50 ) priceBase = models.DecimalField( max_digits = 6, decimal_places = 0, default=0 ) obsBase = models.CharField( max_length = 200, null=True ) def __str__(self): return self.typeName class Topping(models.Model): nameTopping = models.CharField( max_length = 200) priceTopping = models.DecimalField( max_digits = 6, decimal_places = 0, default=0 ) obsTopping = models.CharField( max_length = 200, null=True ) def __str__(self): return self.nameTopping class Pizza(models.Model): namePizza = models.CharField(max_length=200) typePizza = models.ForeignKey(Type, on_delete=models.SET_NULL, null=True ) toppingPizza = models.ForeignKey(Topping, on_delete=models.SET_NULL, null=True) obsPizza = models.CharField(max_length = 200, null=True) def __str__(self): return self.namePizza Guys, can I use this logic to save my kind of pizzas in a database so I can retrive the calculated data when someone order a pizza online?, I'm starting with the right foot?, sorry I'm new at django, and I'm trying to learn everything on the web, and your help will be precious for me! … -
Is it possible to limit the number of messages a user can send a day?
I have been using Django Postman for a few weeks now, and in order to limit the number of messages sent by each user, I have been wondering what would be the best way to limit the number of messages a user can send a day, a week... using Django-postman? I have been browsing dedicated documentation for weeks too in order to find an answer for the how, but I think this is not a usecase for now, and I do not really know how to manage that. Of course I am not looking for a well cooked answer, but I would like to avoid writing labyrinthine code, so maybe just a few ideas about it could help me to see clear through that problematic. Many thanks for your help on that topic! -
Display the fruit's name with the same ID as user's in Django
sorry for the weird example. I have 2 apps : accounts & fruits. Let's say that the user can have 1 fruit and it's showed in his class 'Profile' as 'fruit'. (FRUIT_CHOICES is the ID of the fruit). fruit = models.IntegerField(choices=FRUIT_CHOICES) Now that the User got the fruit's ID in possession, I would like to take more informations from this. So, just after, I write this : user_fruit = Fruit.objects.filter(id = fruit) And here's what I get : django.core.exceptions.AppRegistryNotReady: Models aren't loaded yet. How can I fix that ? Thanks ! -
Django how to capture an already changed file name
This is an admin form handler, for example I upload a test.txt file in the django admin panel: def save_model(self, request, obj, form, change): if 'torrent_file' in form.changed_data: print("file has changed: ") print(obj.torrent_file) else: print("file has not changed") super(FileAdmin, self).save_model(request, obj, form, change) here i get the original file name from the upload form, but by fact the file is saved with another name if there is already a file with this name, but in the above code i get only the original name in all cases, how to can I get the changed/updated file name that was saved? -
Error initialising model with UUIDField django
Problem : So, I have been trying to make an object of the model Trade with an initial value to the identifier from my custom function gen_rand_string(). But the problem is when, I am initialising it. If I remove the initializer and set the UUIDField to NULL, it works out to be fine. This is the error, I am getting : TypeError at /admin/account/trade/add/ int() argument must be a string or a number, not 'Trade' My Trade class : class Trade(models.Model): NEW_TRADE = 'N' CANCELLED_TRADE = 'C' PENDING_TRADE = 'P' STATUS_OF_TRADE = ( (NEW_TRADE, "New"), (CANCELLED_TRADE, "Cancelled"), (PENDING_TRADE, "Pending") ) TYPE_BUY = 'B' TYPE_SELL = 'S' TYPE_OF_TRADE = ( (TYPE_BUY, "Buy"), (TYPE_SELL, "Sell") ) user = models.OneToOneField('UserProfile', related_name='trades') identifier = models.UUIDField(null=False, editable=False) created_at = models.DateTimeField(auto_now_add=True, editable=False) finished_at = models.DateTimeField(auto_now_add=True) amount = models.DecimalField(max_digits=19, decimal_places=10, null=False) type = models.CharField(max_length=2, choices=TYPE_OF_TRADE, null=False) status = models.CharField(max_length=2, choices=STATUS_OF_TRADE, default=PENDING_TRADE, null=False) def __init__(self, *args, **kwargs): self.identifier = gen_rand_string() super(Trade, self).__init__(self, *args, **kwargs) class Meta: ordering = ('created_at',) def __unicode__(self): return self.identifier def __str__(self): return self.identifier My gen_rand_string() : def gen_rand_string(purpose=''): if purpose: return purpose + '_' + get_random_string(length=64 - len(purpose)) else: return get_random_string(length=64) Suggestions : I am making a random string for each trade in not … -
Django blog application error
I have just started coding with django module and for now i am just copying a code from lynda. Although i coded correctly, i got tons of error when i tried to run server. I guess it is because of differences between Django 2 and Django 1.8. What exactly should i change? You may find my code and errors below. Thanks. Errors: python manage.py runserver Performing system checks... Unhandled exception in thread started by .wrapper at 0x105a53598> Traceback (most recent call last): File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/urls/conf.py", line 17, in include urlconf_module, app_name = arg ValueError: too many values to unpack (expected 2) During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/utils/autoreload.py", line 225, in wrapper fn(*args, **kwargs) File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/core/management/commands/runserver.py", line 121, in inner_run self.check(display_num_errors=True) File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/core/management/base.py", line 364, in check include_deployment_checks=include_deployment_checks, File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/core/management/base.py", line 351, in _run_checks return checks.run_checks(**kwargs) File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/core/checks/registry.py", line 73, in run_checks new_errors = check(app_configs=app_configs) File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/core/checks/urls.py", line 40, in check_url_namespaces_unique all_namespaces = _load_all_namespaces(resolver) File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/core/checks/urls.py", line 57, in _load_all_namespaces url_patterns = getattr(resolver, 'url_patterns', []) File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/utils/functional.py", line 36, in get res = instance.dict[self.name] = self.func(instance) File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/urls/resolvers.py", line 536, in url_patterns patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) File "/Users/keremkizbaz/anaconda3/lib/python3.6/site-packages/django/utils/functional.py", line 36, in … -
django-ckeditor doesnt save changes IN CKEditor widget
I have integrated django-ckeditor into my admin and everything is working. The only issue I have is when I use googlewebfontsplugin the changes are made to the content, so it is working , but when i reload the admin page the ckeditor widget prepopulates without the changes I just made. I think this is a problem with the googlewebfonts plugin since when I change the font size, type or style, the ckeditor widget prepopulates correctly with any changes I make, but it seems when I use the googlewebfonts plugin the changes arent made and it resets to normal. config.js : CKEDITOR.editorConfig = function( config ) { // Define changes to default configuration here. For example: // config.language = 'fr'; // config.uiColor = '#AADC6E'; config.font_names = 'GoogleWebFonts'; config.extraPlugins = 'ckeditor-gwf-plugin'; 'pbckcode'; config.toolbarGroups = [ {name: 'pbckcode'},] }; settings.py : CKEDITOR_CONFIGS = { 'default': { 'toolbar': 'full', 'height': 300, 'width': 900, }, } Thank you for any help. -
Django upload csv file copt to postgresql table
I am uploading a csv file in Django : $('#import-file-dialog').on('change', function(event) { $('#upload-files').click(); }); <div class="" style="padding-left: 15px;"> <button class="btn btn-primary btn-outline" id="open-file-dialog">Upload Bulk</button> <input type="file" id="import-file-dialog" name="import_file_dialog" style="display: none;" /> <button class="btn btn-primary" id="upload-files" name="upload_import" style="display: none;">Upload Bulk</button> </div> And after in Django View: import_data = request.FILES.get('import_file_dialog') file = import_data.read() Now i want to use psycopg2 copy_from for inserting csv data to Posgresql. I do google for same but unable to get exact answer. I had two problem 1- Remove header from csv data 2-Use copy_from to insert that csv data to postgresql. Thanks for your precious time.