unable to update pdf and edit category.

[Israr Hussain Rao]

my code is not giving an error but it is not performing edit action. and it uploads pdf but not shown in the html page.

*****************View.py****************

def Upload_Charter(request):

    Category_List= Category.objects.all().order_by("Category_name")# for viewing all catogories

    if request.method == 'POST':

        Remove_Category_List = request.POST.getlist('Category_Uuid_delete')

        if Remove_Category_List:

            Category.objects.filter(uuid=Remove_Category_List).delete()# removing the category

            messages.add_message(request, messages.INFO, _("Category Delete Operation Successfully Completed")) 

        else:

            pass

        action = request.POST.get('action')

        Category_Names = request.POST.getlist('Category')

        Category_Uuids = request.POST.getlist('Category_Uuid') 

        for index, Category_Name in enumerate(Category_Names): 

            if Category_Name=='':

                continue

            elif not Category_Name in Remove_Category_List:

                if action=='save':

                    if  not Category.objects.filter(Category_name=Category_Name).exists():

                        Category(Category_name=Category_Name).save() # createing a new category

                elif action=='update':

                    Category.objects.filter(uuid=Category_Uuids[index]).update(Category_name=Category_Name)#UPDATE

        return redirect(reverse('Upload-Charters')) 

    return render(request, 'Upload-Charters.html',{'Category_List': Category_List})  

@login_required

def Upload_Charter_file(request):

    if request.method == 'POST' and request.FILES.get('charters_files'):

        charters_files = request.FILES.get('charters_files')

        fs = FileSystemStorage()

        filename = fs.save(charters_files.name,charters_files)

        uploaded_file_url = fs.get_available_name(filename)

    return render(request, 'Upload-Charters.html', {

             'uploaded_file_url': uploaded_file_url, 'Category_List': Category_List})