Как сделать мультимедийные типы для общего и частного медиа

Question

В настоящее время я хочу создавать медиа-типы, которые являются общими и приватными. Для media shared все проекты могут просматривать медиа, в то время как для media private его может просматривать только определенный проект. Я не почему его не работает. Это мое кодирование

views.py

def CONprojectnewknowledgecenter(request, id):
project_dat = get_object_or_404(project_db, pk=id)
if request.method == 'GET':
    all_format = Format.objects.all()
    all_category = Category.objects.all()
    all_mediatype = MediaType.objects.all()

    return render(request, 'dashboard/CONprojectnewknowledgecenter.html',
                  {'all_format': all_format, 'all_category': all_category, 'all_mediatype': all_mediatype, 'project_dat': project_dat})

if request.method == 'POST':
    print("Creating new Kc, format: ", request.POST.get('format_id'))
    formatinstance = get_object_or_404(Format, pk=request.POST.get('format_id'))

    print("Creating new Kc, category: ", request.POST.get('category_id'))
    categorylist = get_object_or_404(Category, pk=request.POST.get('category_id'))

    print("Creating new Kc, media type: ", request.POST.get('mediatype_id'))
    mediatypes = get_object_or_404(MediaType, pk=request.POST.get('mediatype_id'))

    kc_submission = Kc.objects.create()
    image = None
    try:
        print("Checking for Kc Image ... ")
        image = request.FILES['image']
    except:
        print("Error: No Kc Images Found. Revert to NULL value.")
    finally:
        print("Checking for Kc Filetype ... ")
        if formatinstance.filetype == 'File':
            print("Filetype:File")
            if categorylist.category == 'Category':
                print("Category selected")
                if mediatypes.mediatype == 'Media':
                    print("Media Type selected")

            try:
                print("Checking for Kc Filesource ... ")
                my_uploaded_file = request.FILES['inputmediafile']
            except:
                print("Error: No Kc Filesource Found. Redirecting back to input page.")
                return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))

            inputmedia = my_uploaded_file.name
            status = gcp("write", file_path="project/" + str(kc_submission.id) + "/" + inputmedia,
                         item=my_uploaded_file.read())
        else:
            print("Filetype:Link --- ", request.POST.get('inputmedialink'))
            inputmedia = request.POST.get('inputmedialink') if request.POST.get('inputmedialink') else "https://www.youtube.com/"

        kc_submission.__dict__.update(project_db_id=id, title=request.POST.get('title'), category_id=categorylist.id, mediatype_id=mediatypes.id,
                                      date=request.POST.get('date'), format_id=formatinstance.id, image=image,
                                      inputmedia=inputmedia)
        kc_submission.save()

    return HttpResponseRedirect(reverse('dashboard:CONprojectdetails', kwargs={'id': id}))

CONprojectnewknowledgecenter. html

        <div class="form-group row">
        <label class="col-sm-4 col-form-label">Media Type :</label>
        <div class="col-md-6">
        <select id="mediatype_id" name="mediatype_id" class="select2 form-control custom select"style="width: 100%; height:36px;" >
                 <option>Choose one</option>
                 <option value="1">Shared</option>
                 <option value="2">Private</option>
                 <option value="{{mediatype.name}}">{{mediatype.name}}</option>
        </select>
        </div>
        </div>

projects / models.py

class Kc(models.Model):
project_db = models.ForeignKey(project_db, on_delete=models.CASCADE, related_name='kc_project',null=True)
# project_db = models.ForeignKey(project_db, on_delete=models.CASCADE, related_name='kc_project', null=True)
image = models.ImageField(upload_to='kcpic_folder/', blank=True, null=True)
title = models.TextField(blank=True)
date = models.TextField(blank=True)
format = models.ForeignKey(Format, on_delete=models.CASCADE, related_name='kc_format', null=True)
inputmedia = models.TextField(blank=True)
view = models.TextField(blank=True)
category = models.ForeignKey(Category, on_delete=models.CASCADE, related_name='kc_category', null=True)
mediatype = models.ForeignKey(MediaType, on_delete=models.CASCADE, related_name='kc_mediatype', null=True)

панель инструментов / models.py

class MediaType(models.Model):
mediatype = models.TextField(blank=True)