Django community: Django Q&A RSS
This page, updated regularly, aggregates Django Q&A from the Django community.
-
The correct way to hide part of fieldsets in django admin, depending on user rights
I want to hide part of fieldsets in django admin, depending on user rights. I have solved this problem by overriding get_fieldsets method, but now have feeling this is not proper way. def get_fieldsets(self, request, obj=None): fieldsets = super(EmployeeAdmin, self).get_fieldsets(request, obj) if not request.user.has_perm('myapp.can_edit_hidden_employee'): return fieldsets return fieldsets + (( _('Hidden fields'), {'fields': ('field1', 'field2')} ), ) models.py class Employee(models.Model): permitted_fields = { '{app_label}.can_edit_hidden_{model_name}': [ 'field1', 'field2'] } first_name = models.CharField(_('First name'), max_length=255) last_name = models.CharField(_('Last name'), max_length=255) field1 = models.CharField(_('Field1'), max_length=255, null=True, blank=True) field2 = models.CharField(_('Field2'), max_length=255, null=True, blank=True) class Meta: permissions = ( ('can_edit_hidden_employee', _('Can edit hidden fields')) ) admin.py class EmployeeAdminForm(ModelForm): field1 = forms.CharField(label=_('field1'), required=False, widget=CustomWidget()) field2 = forms.CharField(label=_('field2'), required=False, widget=CustomWidget()) class EmployeeAdmin(ModelAdmin): list_display = ('last_name', 'first_name') list_display_links = ('last_name', 'first_name') search_fields = ( 'first_name', '^last_name') fieldsets = (( None, {'fields': ( 'last_name', 'first_name')} ), ) form = EmployeeAdminForm def get_fieldsets(self, request, obj=None): fieldsets = super(EmployeeAdmin, self).get_fieldsets(request, obj) if not request.user.has_perm('myapp.can_edit_hidden_employee'): return fieldsets return fieldsets + (( _('Hidden fields'), {'fields': ('field1', 'field2')} ), ) Django 1.11.17, python 3.7 -
Django Generic Based view: not saving html form data to database
I have a Django library application with several books and authors, here is a /author/create html form used by the admin to create/update details of the author (firstname, lastname, dob, profile picture), referring the MDN Library application. I have a Generic Class Based View for this purpose: class AuthorCreate(PermissionRequiredMixin, CreateView): permission_required = 'is_superuser' model = Author fields = '__all__' success_url = reverse_lazy('author-detail') class AuthorUpdate(PermissionRequiredMixin, UpdateView): permission_required = 'is_superuser' model = Author fields = ['first_name', 'last_name', 'date_of_birth', 'date_of_death'] success_url = reverse_lazy('author-detail') class AuthorDelete(PermissionRequiredMixin, DeleteView): permission_required = 'is_superuser' model = Author success_url = reverse_lazy('authors') And these are the url patterns: urlpatterns += [ path('author/create/', views.AuthorCreate.as_view(), name='author_create'), path('author/<int:pk>/update/', views.AuthorUpdate.as_view(), name='author_update'), path('author/<int:pk>/delete/', views.AuthorDelete.as_view(), name='author_delete'), ] And this is the author_form.html for creating/updating author details: <form action="" method="post" class="form-horizontal" enctype="multipart/form-data"> {% csrf_token %} //remaining code... </form> Now, on clicking the submit button in the html form above, it should redirect to author/id page(mentioned in the success_url), however the main concern is that a new author is not getting created in the first place. I am not sure how the html form data is being saved, whether or not it is being saved in the first place, because the page is redirecting to the sucess_url. Please ... -
Django : uploaded image not acessed in the template
I am trying to create a code like facebook image upload in django. My image gets uploaded and it is stored in the media folder under documents , and i like to show that image wherever i want in my template , but the image should be the latest one, to show in the template models.py class ImageUpload(models.Model): image = models.FileField(upload_to='documents/') views.py def ImageUpload(request): #lastimage = ImageUpload.objects.latest() #print(lastimage) if request.method == 'POST': form = ImageUploadForm(request.POST, request.FILES) if form.is_valid(): form.save() return redirect('dashboard.html') else: form = ImageUploadForm() return render(request, 'image_upload.html', { 'form': form }) forms.py from django import forms from chat.models import ImageUpload class ImageUploadForm(forms.ModelForm): class Meta: model = ImageUpload fields = '__all__' image_upload.html {% extends 'base.html' %} {% block content %} <form method="post" enctype="multipart/form-data"> {% csrf_token %} {{ form.as_p }} <button type="submit">Upload</button> </form> <p><a href="{% url 'dashboard' %}">Return to home</a></p> {% endblock %} base.html <div class="row"> <div class="col-lg-1 col-md-0 col-sm-1 col-xs-12"> <div class="menu-switcher-pro"> <button type="button" id="sidebarCollapse" class="btn bar-button-pro header-drl-controller-btn btn-info navbar-btn"> <i class="educate-icon educate-nav"></i> </button> </div> </div> <div class="col-lg-5 col-md-5 col-sm-12 col-xs-12 pull-right"> <div class="header-right-info"> <ul class="nav navbar-nav mai-top-nav header-right-menu"> <li class="nav-item"> <a href="#" data-toggle="dropdown" role="button" aria-expanded="false" class="nav-link dropdown-toggle"> <img src="/static/Chatbot_Dashboard/img/admin.png" alt="Admin-image" /> <span class="admin-name">Admin</span> <i class="fa fa-angle-down edu-icon edu-down-arrow"></i> </a> ... -
Django - How to access the same list on every call to views.py?
I want to create a simple Tic-Tac-Toe game with Python (Django). It will be just a 3x3 table. When user clicks on a cell - Ajax call to a specific url that leads to views.py. Do I need to send values of the all cells to python script every time? Or is there a way to declare a list with all values inside views.py and access it every time when the call is made? -
django dependant select via jquery , does not work with non english
I used these codes: (Django dependent select) to implement django dependent select, it works properly when the names of citys and counties are saved in english in the database but when i want to save non english names in the database it doesnt work ! i also used <head><meta charset="UTF-8" /></head> for html and # -*- coding: utf-8 -*- for python pages the codes are : models.py : from django.db import models class City(models.Model): name = models.CharField(max_length=50) country = models.ForeignKey("Country") def __unicode__(self): return u'%s' % (self.name) class Country(models.Model): name = models.CharField(max_length=50) def __unicode__(self): return u'%s' % (self.name) views.py: from django.shortcuts import render from map.models import * from django.utils import simplejson from django.http import HttpResponse def index(request): countries = Country.objects.all() print countries return render(request, 'index.html', {'countries': countries}) def getdetails(request): country_name = request.GET['cnt'] print "ajax country_name ", country_name result_set = [] all_cities = [] answer = str(country_name[1:-1]) selected_country = Country.objects.get(name=answer) print "selected country name ", selected_country all_cities = selected_country.city_set.all() for city in all_cities: print "city name", city.name result_set.append({'name': city.name}) return HttpResponse(simplejson.dumps(result_set), content_type='application/json') index.html : <html> <head> <script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script> <script type="text/javascript" src="http://yourjavascript.com/7174319415/script.js"></script> <script> $(document).ready(function(){ $('select#selectcountries').change(function () { var optionSelected = $(this).find("option:selected"); var valueSelected = optionSelected.val(); var country_name = optionSelected.text(); data = {'cnt' ... -
Two step object creation in Django Admin
I'm trying to change the implementation of an EAV model using a JSONField to store all the attributes defined by an attribute_set. I already figured out how to build a form to edit the single attributes of the JSON, but I'm currently stuck at implementing the creation of a new object. I think I have to split object creation in two steps, because I need to know the attribute_set to generate the correct form, but I don't know if there's a way to hook in the create action, or any other way to achieve what I need. -
Fetch external data and populate form in django admin
In short: I would like to fill in some form fields in django admin, before I click the save button, based on the input in another field. The longer version: I have 2 models, SteamGame and GameInfo which has a ForeignKey to SteamGame. The SteamGame table gets filled once a day with all the games listed on Steam, by fetching and parsing http://api.steampowered.com/ISteamApps/GetAppList/v0002/, the GameInfo table gets filled manually using the admin site. When adding to GameInfo I select the game from SteamGame. Some of the fields are for info I add myself, some of the fields I want to be populated after selecting the game and fetching https://store.steampowered.com/api/appdetails?appids=GAMEID&l=en for that information. Are there some magic Django functions I can use to accomplish this? Or any other suggestions on how to do this? Thanks! -
Django : Iterate over objects in HTML template doesn't work well
I would like to get your help in order to display objects choosen by user and get some querysets according to each object. I'm working with django 1.11.16 on this project. Context : User has to choice some things : Start date End date One or several publication(s) Then, it returns a table with some querysets applied to this/these publication(s) and display one publication per row with associated data. Forms.py file : class PublicationStatForm(forms.Form): publication_list = forms.ModelMultipleChoiceField(queryset=Publication.objects.all().order_by('pub_id')) # This part doesn't work while it should be # publication_list = forms.ModelMultipleChoiceField( # queryset=Publication.objects.all().order_by('pub_id'), # label=_('Publication Choice'), # widget=ModelSelect2MultipleWidget( # model=Publication, # queryset=Publication.objects.all().order_by('pub_id'), # search_fields=['pub_id__icontains', 'title__icontains'], # ) # ) def __init__(self, *args, **kwargs): super(PublicationStatForm, self).__init__(*args, **kwargs) In this part, I have a ModelMultipleChoiceField because user can select one or several publication(s). The commented part doesn't work while it should do the job. Views.py file : In this part, I create some querysets in order to get informations about selected publication(s) over a selected time period. I will show you only 2-3 querysets but it counts 6 querysets. I pick up the list of publications, get the id and I make a loop over each id in the list. class StatsView(TemplateView): """ ... -
Django filter objects based on the value of a field of the last data in another model
There are 2 models class A(models.Model): name = models.TextField() class B(models.Model): a = models.ForeignKey(A) status = models.BooleanField(default=False) Now I want to filter objects of class A based on the last data in class B status. if there are 2 datas of Model B id | a | status 1 | abc | False 2 | abc | True So if I want to filter objects of Model A which are having status False. In this case it will give me abc. If I wanted to filter objects of Model A which are having status True. In this case it should not return me abc. I want to write a query something like A.objects.filter(b__status__last=True) Is it possible to do using filters? -
register your Django router
when i use route.register(r'codes', SmsCodeViewset) don't add base_name="", this is an error `AssertionError: `basename` argument not specified, and could not automatically determine the name from the viewset, as it does not have a `.queryset` attribute. when i useroute.register(r'codes', SmsCodeViewset, bose_name="")` there is no error ,may i ask why? -
How can I avoid users having to reenter their password when signed in to o365?
I am building a webapp with Django which allows our users to create a meeting in their office365 calendar while also storing the meeting in a database so we can display some information about it on a screen in the office. I am using exchangelib to create the meetings and it works really well. I want to make it so our users do not have to enter their passwords for their o365 account every time they use it, but I would prefer not storing the passwords locally either since they change regularly. Our users are always logged in to sharepoint or owa when they use this app is it possible to get their credentials from there? Or is it possible to link it to our local AD? -
Django 1.11 ManyToMany
I'm having problems with Django 11.1. I added a ManyToMany relation to a file upload but in Admin there is no option to send the files. In this system I have the registration information of a course and I need to send files to download. There may be several files per course, so a ManyToMany interface. Below is the image of how Admin is showing the field. Django Admin input print models.py class PalestraFile(models.Model): file = models.FileField( upload_to=path_and_rename('uploaded_files/palestra/'), blank=True, verbose_name="Arquivo da programação", help_text="(.pdf, .doc, .txt, .png, .jpg)") class Palestra(Programacao): palestrante = models.ForeignKey(Palestrante, null=True, blank=True, limit_choices_to={'ativo': True}) palestrantes = models.ManyToManyField( Palestrante, related_name='palestra_palestrantes', blank=True, limit_choices_to={'ativo': True} ) file = models.ManyToManyField( PalestraFile, related_name='palestra_palestrafiles', blank=True, verbose_name="Arquivos da palestra") class Meta: verbose_name = 'Palestra' verbose_name_plural = 'Palestras' def __str__(self): return '%s | %s ' % (date(self.dia, "d/m"), self.tema) admin.py from django.contrib import admin from .models import Palestrante, Palestra, PalestraFile from .forms import PalestranteFormAdmin @admin.register(Palestrante) class PalestranteAdmin(admin.ModelAdmin): form = PalestranteFormAdmin list_display = ['nome', 'email', 'slug', 'ativo'] prepopulated_fields = {"slug": ("nome",)} # actions = ['compress_uploads'] def compress_uploads(self, request, queryset): for obj in queryset: obj.save() compress_uploads.short_description = "Comprimir Imagens de Uploads" @admin.register(Palestra) class PalestraAdmin(admin.ModelAdmin): search_fields = ( 'tema', 'palestrante__nome', 'dia', 'evento__nome', 'evento__local' ) list_display = [ 'evento', 'palestrante', ... -
Dynamic DOB Year selection in Django
I am using django 1.7.7. I want to make a year selection dropdown using for loop. <option value="0">Year</option> {% for year in 2018|getxrange:1893 %} if year < 10 %} <option value="0{{year}}">0{{year}}</option> {% else %} <option value="{{year}}">{{year}}</option> {% endif %} {% endfor %} Instead of 2018 I want a dynamic year. My Try: {% with now "Y" as name %} {%endwith%} Its not working. please suggest better way to achieve this. -
AWS lambda serverless website (using django ) session maintaining
I developed a website using django. Recently I am trying to make it serverless and deploy to lambda. I haven't figured out how to maintain the session after user logged in when deployed to lambda.any suggestions please. -
Smtp2go Username's account not allowed to send
I seem to be unable to send an email via my smtp server that is integrated with Django. I'm following this tutorial: https://github.com/smtp2go-oss/smtp2go-django/ Error keeps saying that the smtp's username is not allowed to send. I have checked my login password and username in settings.py and with my API key exported. So what am I doing wrong here? Performing system checks... System check identified no issues (0 silenced). December 12, 2018 - 07:36:23 Django version 2.1.3, using settings 'ChatBotWebApp.settings' Starting development server at http://127.0.0.1:8000/ Quit the server with CONTROL-C. ERROR:smtp2go.core:['Message failed - Error: {\'weiyuxin100@gmail.com\': (550, b"that smtp username\'s account is not allowed to send")}'] INFO:smtp2go.core:Success? False INFO:smtp2go.core:Status Code: 200 INFO:smtp2go.core:Request ID: a2679416-fde0-11e8-b8ef-f23c917b36ad Would appreciate any help here, thanks! -
Displaying uploaded file name to python file from django form
I am fairly new to using Django. I successfully upload file and store in one folder in project .Now I want to display uploaded file name in one of the python file in my django project. My project hierarchy is djangoproject //project folder -mysite - mysite - taxonomy //here i stored uploaded files - personal // this app name -venv -requirements.txt mysite/urls.py from django.conf.urls import include, url from django.contrib import admin from django.contrib.staticfiles.urls import staticfiles_urlpatterns urlpatterns = [ url(r'^', include('personal.urls')), url(r'^admin/', include(admin.site.urls)), ] urlpatterns += staticfiles_urlpatterns() personal/urls.py from django.conf.urls import url from personal.views import index,dashboard urlpatterns = [ url(r'^$', index, name='index'), url(r'^dashboard/', dashboard, name='dashboard') ] personal/views.py from django.shortcuts import render, redirect from personal.forms import SignUpForm, StudentForm from personal.functions import handle_uploaded_file from django.http import HttpResponse def dashboard(request): if request.method == 'POST': student = StudentForm(request.POST, request.FILES) if student.is_valid(): handle_uploaded_file(request.FILES['file']) messages.add_message(request, messages.SUCCESS, 'File Uploaded Successfully.') return redirect('dashboard') else: student = StudentForm() return render(request,"registration/dashboard.html",{'form':student}) persona/tampletes/registration/dashboard.html {% if messages %} {% for message in messages %} <div class="alert {% if message.tags %}alert-{{ message.tags }}{% endif %}" role="alert">{{ message }}</div> {% endfor %} {% endif %} <form method="POST" class="post-form" enctype="multipart/form-data"> {% csrf_token %} <div class="form-group"> <div class="col-sm-10"> <div style="padding-bottom:4px; padding-left: 15px; border: 1px solid #d1c9c5;"> {{ ... -
MAC - How do I find and remove postgres server?
I cannot find a way to kill or remove my postgresql server. postgres -V shows the version is 9.5.3 but I cannot find the path file in my mac. I tried lsof -i :5432 and the result comes out as below COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME postgres 1403 jk0819 5u IPv6 0x35013bd948ad16e1 0t0 TCP localhost:postgresql (LISTEN) postgres 1403 jk0819 6u IPv4 0x35013bd9438f8821 0t0 TCP localhost:postgresql (LISTEN) but when I run kill -9 1403 it does nothing. Can anyone help me? Thank you. -
Running a python program which uses concurrent.futures within a celery based web app
I am working on a django application which uses celery for the distributed async processes. Now I have been tasked with integrating a process which was originally written with concurrent.futures in the code. So my question is, can this job with the concurrent futures processing work inside the celery task queue. Would it cause any problems ? If so what would be the best way to go forward. The concurrent process which was written earlier is resource intensive as it is able to avoid the GIL. Also, its very fast due to it. Not only that the process uses concurrent.futures.ProcessPoolExecutor and inside it another few (<5) concurrent.futures.ThreadPoolExecutor jobs. So now the real question is should we extract all the core functions of the process and re-write them by breaking them as celery app tasks or just keep the original code and run it as one big piece of code within the celery queue. As per the design of the system, a user of the system can submit several such celery tasks which would contain the concurrent futures code. Any help will be appreciated. -
Django Reset Serializer loses file
I have a Simple serializer. class MySerializer(serializers.Serializer): file = serializers.FileField() I use this serializser in my view: class MyView(APIView): permission_classes = () parser_classes = (MultiPartParser,) def post(self, request): print(request.data) # <QueryDict: {'file': [<InMemoryUploadedFile: some_file.png (image/png)>]}> serializer = MySerializer(data=request.data) serializer.is_valid() print(serializer.data) # {'file': None} I pass data to serializer, which containts file. After checking serializer.data it says that file is None. What is more If I change the serializer.is_valid() line to serializer.is_valid(raise_exception=True) The view will return message that data are invalid. { "file": [ "This field can not be null." ] } This behaviour is strange to my. The docs says that request.data contains both file and non-file object. We can even see that in my print. The question is why my serialzier can't make use of it? -
Regex exclude numbers (0-9), and negative (-) only if occurs on first index of string
I'm still learning on regex, I need to remove all characters in the string except for the numbers(0-9), dots (.), and negative (-) if occurs on first index of string. so basically if i had a string "-12,3asd45,we-678.90" it should give me "-12345678.90" This is my current code, but the problem is I just want to exclude (-) if it occurs on the first index of the string, currently it excludes in all occurrences of (-): value = val.replace(/[^-0-9.]/g , ''); -
push live updates to client through Django Channels & Websockets when database get updated
I am very new to django channels.I wan't to try out. using django channels, If I added one user through django admin portal then this will be update on live on page where i am displaying users list. Using django post-save is this possible Please help me on this. I have tried one week on this till not get any solution. -
Is it possible to extend a site-wide template in Django / refer to templates in higher directories?
I would like to have a header/footer that follows throughout the entire site. Currently, I have a base.html file sitting within an app (project/app1/templates/app/base.html) and would like to apply an html template that I can use across the entire site. Is this possible or are templates only referanceable within the app templates folder? Can I have a template sitting in a higher directory such as project/template/base.html or project/base.html and call that so I don't have to copy and paste the same template into each app templates folder? -
How to handle sessions in django app when deployed in aws lambda
I want to deploy Django application in aws using Zappa. In my local server sessions are working fine.Is it possible to handle same sessions in aws ? if not is there any method to handle sessions in aws(Zappa)? -TIA -
ModuleNotFoundError: No module named '_sqlite3' python django
I am running simple python manage.py runserver and getting this error.i had tried everything like installing sqlite3,sqlite-devel but nothing works File "/usr/local/lib/python3.6/sqlite3/__init__.py", line 23, in <module> from sqlite3.dbapi2 import * File "/usr/local/lib/python3.6/sqlite3/dbapi2.py", line 27, in from _sqlite3 import * ModuleNotFoundError: No module named '_sqlite3' -
django project deploy with apache, the apache is running, but its shows error and dependency is already install
[Wed Dec 12 10:59:32.115495 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] File "/usr/local/lib/python3.5/dist-packages/django/core/wsgi.py", line 13, i$ [Wed Dec 12 10:59:32.115497 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] django.setup(set_prefix=False), referer: http://13.127.165.50/en/admin/ [Wed Dec 12 10:59:32.115501 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] File "/usr/local/lib/python3.5/dist-packages/django/init.py", line 27, in$ [Wed Dec 12 10:59:32.115503 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] apps.populate(settings.INSTALLED_APPS), referer: http://13.127.165.50/en/ad$ [Wed Dec 12 10:59:32.115507 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] File "/usr/local/lib/python3.5/dist-packages/django/apps/registry.py", line 8$ [Wed Dec 12 10:59:32.115509 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] app_config = AppConfig.create(entry), referer: http://13.127.165.50/en/admi$ [Wed Dec 12 10:59:32.115513 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] File "/usr/local/lib/python3.5/dist-packages/django/apps/config.py", line 94,$ [Wed Dec 12 10:59:32.115515 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] module = import_module(entry), referer: http://13.127.165.50/en/admin/ [Wed Dec 12 10:59:32.115518 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] File "/usr/lib/python3.5/importlib/init.py", line 126, in import_module, $ [Wed Dec 12 10:59:32.115521 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] return _bootstrap._gcd_import(name[level:], package, level), referer: http:$ [Wed Dec 12 10:59:32.115524 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] File "", line 986, in _gcd_import, referer: http$ [Wed Dec 12 10:59:32.115534 2018] [wsgi:error] [pid 20200:tid 140575906928384] [client 103.3.228.58:42384] File "", line 969, in _find_and_load, referer: h$ [Wed Dec 12 10:59:32.115538 2018] ...
