Module 10 create and delete review functions

from share.models import Script, Problem, Coder, Review

def create_review(request,script_id):
    if request.method == "POST":
        user = request.user
        if not user.is_authenticated:
            return redirect("share:login")

        script = get_object_or_404(Script, pk=script_id)
        problem = get_object_or_404(Problem, pk=script.problem.id)

        coder = user.coder
        feedback = request.POST["feedback"]

        stars = request.POST.get('stars', False)
        print('************************')
        print(stars)

        if stars == 'Confusing':
            stars = 1
        elif stars ==  "Clear":
            stars = 2
        else:
            stars = 3

        try:
            review = Review.objects.create(coder=coder, script=script, feedback=feedback, stars=stars)
            review.save()
            # script.html  needs user, script, problem, reviews, user_review
            reviews = Review.objects.filter(script=script_id)
            user_review = Review.objects.filter(coder=user.id).filter(script=script.id)

            return render(request, "share/script.html",
            {"user":user, "problem":problem, "script": script, "reviews":reviews, "user_review":user_review})

        except:
            return render(request, "share/script.html", {"error":"Can't create the script"})

    else:
        # the user enteing    http://127.0.0.1:8000/problem/8/create
        user = request.user
        all_problems = Problem.objects.all()
        return render(request, "share/index.html", {"user":user, "all_problems": all_problems, "error":"Can't create review!"})

def delete_review(request, review_id):
    if request.method == "POST":
        user = request.user
        if not user.is_authenticated:
            return HttpResponse(status=500)

        review = get_object_or_404(Review, pk=review_id)

        # script.html needs user, script, problem, reviews, user_review
        script = get_object_or_404(Script, pk=review.script.id)
        problem = get_object_or_404(Problem, pk=script.problem.id)


        if review.coder.user.id == user.id:
            Review.objects.get(pk=review_id).delete()

            reviews = Review.objects.filter(script=script.id)
            user_review = Review.objects.filter(coder=user.id).filter(script=script.id)  # should retrive no obj

            return render(request, "share/script.html",
            {"user":user, "problem": problem, "script":script, "reviews":reviews, "user_review":user_review,
            "error":"Review deleted!"})

        else:
            user_review = Review.objects.filter(coder=user.id).filter(script=script.id)  # should retrive no obj

            return render(request, "share/script.html",
            {"user":user, "problem": problem, "script":script, "reviews":reviews, "user_review":user_review, "error":"Can't delete the review!"})

    else:
        return HttpResponse(status=500)