Ufdjrw

There are many similar questions to mine on Stack Overflow, but none which solve my problem.

I have a class-based view which accepts files, and once a valid file is found, I would like the website to redirect the user to a template inside a different app, passing in some parameters.

I've seen others put an extra path in 'urlpatterns' and get the view from there. But doing this only makes a GET signal on my command prompt, but not actually changing the web url.

views.py

from django.shortcuts import render, redirect # used to render templates
from django.http import JsonResponse
from django.views import View

from .forms import UploadForm
from .models import FileUpload

class UploadView(View):
 def get(self, request):
 files_list = FileUpload.objects.all()
 return render(self.request, 'upload/upload.html', 'csv_files': files_list)

def post(self, request):
 form = UploadForm(self.request.POST, self.request.FILES)
 if form.is_valid():
 csv_file = form.save()
 data = 'is_valid': True,
 'name': csv_file.file.name,
 'url': csv_file.file.url,
 'date': csv_file.uploaded_at
 # REDIRECT USER TO VIEW PASSING 'data' IN CONTEXT
 return redirect('graph:chart', file_url=csv_file.file.url)
 else:
 data = 'is_valid': False
 return JsonResponse(data)

urls.py

from django.urls import path
from . import views

app_name = "upload"

urlpatterns = [
 path('', views.UploadView.as_view(), name='drag_and_drop'),
]

urls.py (of other app)

from django.urls import path
from . import views

app_name = "graph"

urlpatterns = [
 path('', views.page, name='chart'),
]

You can specify an app name and use exactly the redirect shortcut as you started:
https://docs.djangoproject.com/en/2.1/topics/http/urls/#naming-url-patterns

in the other app urls.py define app_name = 'other_app', and then use redirect(other_app:url_name', parameter1=p1, parameter2 = p2)

you can name easily your parameters either using path (Django >=2.0) or url (re_path for Django >=2.0), for instance:

from django.urls import path

from . import views

urlpatterns = [
 path('articles/<int:year>/<int:month>/<slug:slug>/', views.article_detail),
 re_path(r'^articles/(?P<year>[0-9]4)/$', views.year_archive),
]