I am trying to pass user data from one template inside of another template. For this I use an ajax request, as well explained here How do I integrate Ajax with Django applications?
although no error shows up, nothing gets pulled.
here is what my model formset view look like inside of template 1:
def New_Sales(request):
#context = {}
form = modelformset_factory(historical_recent_data, fields=('id','Id', 'Date','Quantity', 'NetAmount', 'customer_name'))
if request.method == 'GET':
formset = form(queryset= historical_recent_data.objects.none())
#blank_form = formset.empty_form
elif request.method == 'POST':
formset = form(request.POST)
#blank_form = formset.empty_form
if formset.is_valid():
request.session['sale'] = request.POST.get('sale')
for check_form in formset:
check_form.save()
quantity = check_form.cleaned_data.get('Quantity')
id = check_form.cleaned_data.get('Id')
update = replenishment.objects.filter(Id = id).update(StockOnHand = F('StockOnHand') - quantity)
update2 = Item2.objects.filter(reference = id).update(stock_reel = F('stock_reel') - quantity)
return redirect('/invoice/pdf/assembly/')
#else:
#form = form(queryset= historical_recent_data.objects.none())
return render(request, 'new_sale.html', {'formset':formset})
and here is the view to access template 1 data into template 2:
def generate_pdf_assembly(request):
my_company = MyCompany.objects.get(id = 1)
request = request.session.get('sale')
context = {'request' : request, 'my_company' : my_company }
print(context)
and here is the ajax request to access the data from the template (in template 2):
<h3> {{ context }} </h3>
<script>
$.ajax({
method: "GET",
url: "/new_sale.html",
sucess: function(context){
alert(context);
},
failure: function(context){
alert('got an error');
}
});
</script>
I feel like there must be an issue with the request.session in the view since no evident error gets outputed neither in log nor chrome console but I am not competent to debug it further at this point.
UPDATE: after changing context for request in tag template, the value None shows up, definitely an issue with the requesting
def username_exists(request):
data = {'msg':''}
if request.method == 'GET':
username = request.GET.get('username').lower()
exists = Usernames.objects.filter(name=username).exists()
if exists:
data['msg'] = username + ' already exists.'
else:
data['msg'] = username + ' does not exists.'`enter code here`
return JsonResponse(data)
Related
I have two functions in views.py, the first one allows you to display information from tables. The second is to get data from the form and redirect to the page with the result. How can I pass the data received from the form to the first function to display information from the tables based on this very data?
In the first function:
def SuOp(request):
allrooms = Rooms.objects.all()
allfood = Food.objects.all()
alltours = Tours.objects.all()
data = {
'allfood': allfood,
'allrooms': allrooms,
'alltours': alltours,
}
return render(request, './obj.html', data)
in the second function:
def Main(request):
error = ''
if request.method == 'POST':
form = SearchMain(request.POST)
if form.is_valid():
budget = form.cleaned_data.get("budget")
arrival_date = form.cleaned_data.get("arrival_date")
departure_date = form.cleaned_data.get("departure_date")
number_of_people = form.cleaned_data.get("number_of_people")
count_days = (departure_date-arrival_date).days
return redirect('allobject')
else:
error = 'The form has been filled out incorrectly'
form SearchMain()
data = {
'formS': form,
'error': error,
}
return render(request, './main.html', data)
urls.py:
urlpatterns = [
path('', views.Main, name='main'),
path(r'allobject/$', views.SuOp, name='allobject')
]
You can use sessions to pass values from one view to another. First set the session:
if form.is_valid():
budget = form.cleaned_data.get("budget")
request.session['budget'] = budget
...
return redirect('allobject')
Then your other view can get the session variable:
def SuOp(request):
budget = request.session.get('budget')
...
allrooms = Rooms.objects.all()
allfood = Food.objects.all()
alltours = Tours.objects.all()
data = {
'allfood': allfood,
'allrooms': allrooms,
'alltours': alltours,
}
return render(request, './obj.html', data)
The other option is to do all the calculations in the view that receives the budget, arrival_date, departure_date, number_of_people, save the desired results to the Rooms, Food and Tours objects.
I am receiving the following error when submitting a form.
ValueError at /edit_entry/hi/
The view encyclopedia.views.edit_entry didn't return an HttpResponse object. It returned None instead.
Here is the views.py that is triggering the error.
def edit_entry(request, title):
if request.method == "POST":
form = NewEditEntryForm(request.POST)
if form.is_valid():
title = form.cleaned_data["title"]
content = form.cleaned_data["content"]
util.save_entry(title, content)
return HttpResponseRedirect("/wiki/" + title)
else:
form = NewEditEntryForm()
return render(request, "encyclopedia/edit_entry.html",{
"form": NewEditEntryForm(),
"title": title,
"content": util.get_entry(title)
})
What is the issue and how can I fix it?
(I also need help prepopulating the form with already existing data. I have tried using initial, but that has not worked. What is the best way to prepopulate the form with existing data?)
util.save_entry
def save_entry(title, content):
"""
Saves an encyclopedia entry, given its title and Markdown
content. If an existing entry with the same title already exists,
it is replaced.
"""
filename = f"entries/{title}.md"
if default_storage.exists(filename):
default_storage.delete(filename)
default_storage.save(filename, ContentFile(content))
sorry, I thought that you have a model.
# on util.py
def get_entry_content(title):
filename = f"entries/{title}.md"
return default_storage.open(filename).read()
# on views.py
def edit_entry(request, title):
if request.method == "POST":
form = NewEditEntryForm(request.POST)
if form.is_valid():
title = form.cleaned_data["title"]
content = form.cleaned_data["content"]
util.save_entry(title, content)
return HttpResponseRedirect("/wiki/" + instance.title)
else:
content = util.get_entry_content(title)
initial_dict = {
"title" : title,
"content" : content,
}
form = NewEditEntryForm(initial=initial_dict)
return render(request, "encyclopedia/edit_entry.html", {
"form": form,
})
All right, I think if this is not doing what you want, i would test the save_entry function in the console, creating and updating to see if it works or not.
I'm working on a Django project where I want to use ajax jquery to complete my search in my search form.
Tried everything, but it does not seem to work.
Pls, where have I missed it?
used this tutorial
views.py
import json
def search(request):
if request.method == 'POST':
form = SearchForm(request.POST)
if form.is_valid():
query = form.cleaned_data['query']
catid = form.cleaned_data['catid']
if catid == 0:
products = Product.objects.filter(name__icontains=query)
else:
products = Product.objects.filter(name__icontains=query, category_id=catid)
category = Category.objects.all()
context = {
'products': products,
'category': category,
'query': query,
}
return render(request, 'shop/product/search.html', context)
return HttpResponseRedirect('/')
def search_auto(request):
if request.is_ajax():
q = request.GET.get('term', '')
products = Product.objects.filter(name__icontains=q)
results = []
for pl in products:
product_json = {}
product_json = pl.name
results.append(product_json)
data = json.dumps(results)
else:
data = 'fail'
mimetype = 'application/json'
return HttpResponse(data, mimetype)
<script>
$(function() {$("#query").autocomplete({
url: "{% url 'shop:search_auto' %}",
select: function (event, ui) {AutoCompleteSelectHandler(event, ui)},
minLength: 2,
});
});
function AutoCompleteSelectHandler(event, ui)
{var selectedObj = ui.item;}
</script>
path('search', views.search_auto, name='search_auto'),
Thanks.
I have a edit-scholarship.html in which you can search for a scholarship by passing name and type and then select that scholarship and edit it in update-scholarship.html by passing scholarship id from the url.
Now after updating the scholarship, the url becomes
http://127.0.0.1:8000/admin/updatescholarship/50
50 is the scholarship id passed into the url
Now when I try to go to dashboard in my project, the url becomes
http://127.0.0.1:8000/admin/updatescholarship/dashboard
I dont't want the dashboard to get appended after the updatescholarship . The url should be
http://127.0.0.1:8000/admin/dashboard
Here's my edit-scholarship view
def admin_editscholarship(request):
if request.method == 'POST':
name = request.POST['sch_name']
type = request.POST['sch_type']
schdets = ScholarshipDetails.objects.filter(name = name,type = type)
if schdets is not None:
#if something exists in scholarship details, then print it
print('Scholarship found')
else:
schdets = None
return render(request,'admin-editscholarship.html',{'schdets':schdets})
Here's my update-scholarship view
def admin_updatescholarship(request,pk=None):
#can update the new data in the selectd scholarship
if pk:
sch = ScholarshipDetails.objects.get(pk = pk)
if request.method == 'POST':
form = EditScholarshipForm(request.POST,instance=sch)
if form.is_valid():
form.save()
print('\nform saved')
args = {'form' : form}
messages.success(request,'Successfully updated')
return render(request,'admin-editscholarship.html',args)
Here's my urls.py
path('admin/dashboard',views.admin_dash),
path('admin/addscholarship',views.admin_addscholarship),
path('admin/editscholarship',views.admin_editscholarship),
url(r'^admin/updatescholarship/(?P<pk>\d+)$',views.admin_updatescholarship,name =
'updatescholarship'),
path('admin/students',views.admin_students),
path('admin/requests',views.admin_requests)
you can redirect to other url using django redirect
from django.shortcuts import redirect
def fn_test(request):
task here
return redirect('path_to_redirect/')
Here I am trying to redirect to another page if the form is submitted successfully but this code is not working properly .The code saves the form data sends the email , everything is fine but the problem is while redirecting to another page if the form succeed. The error I get is:
Django Version: 2.0.6
Exception Type: ValueError
Exception Value:
dictionary update sequence element #0 has length 0; 2 is required
context_processor.py
def volunteer_page2(request):
volunteer = Volunteer.objects.all().order_by('date')
if request.method == 'POST':
form = VForm(request.POST or None)
if form.is_valid():
name = form.cleaned_data['name']
email = form.cleaned_data['email']
message = "{0} with email address {1} has sent you new message \n\n{2}".format(name, email, form.cleaned_data['message'])
form.save(commit = False)
try:
send_mail(name, message, 'appname <settings.EMAIL_HOST_USER>', ['myemail'])
except:
return HttpResponse('Invalid header found')
form.save()
messages.success(request, 'Success')
return redirect('volunteer_page')
else:
messages.error(request, "Sorry try again")
else:
form = VForm()
return {'volunteer': volunteer, 'form':form}
views.py
def about_page(request):
about = About.objects.all().order_by('date')
banner = Banner.objects.all()
testimonial = Testimonial.objects.order_by('-pk')[0:2]
nav = Nav.objects.all()
footer = Footer.objects.all()
latest_event2 = Events.objects.order_by('-pk')[0:2]
context = {
'about': about,
'testimonial': testimonial,
'footer':footer,
'banner': banner,
'nav': nav,
'latest_event2': latest_event2,
}
return render(request, 'myapp/about.html', context)
settings.py
'myapp.context_processor.volunteer_page2'
Django's context processor should always return dictionary. In your code you are returning HttpResponse also. This is problem.