Requied explanation for Django views.py code

I'm learning Django and it was going pretty nice until I got confused with given code. Could someone explain me line by line what is happening there?

from .forms import NewsLinkForm
from .models import NewsLink

class NewsLinkUpdate(View):
    form_class = NewsLinkForm
    template_name = 'organizer/newslink_form_update.html'

    def get(self, request, pk):
        newslink = get_object_or_404(NewsLink, pk=pk)
        context = {
            'form':self.form_class(instance=newslink),
            'newslink':newslink,
        }
        return render(request, self.template_name, context)

    def post(self,request,pk):
        newslink = get_object_or_404(NewsLink, pk=pk)
        bound_form = self.form_class(request.POST, instance=newslink)
        if bound_form.is_valid():
            new_newslink = bound_form.save()
            return redirect(new_newslink)
        else:
            context = {
                'form':bound_form,
                'newslink':newslink,
            }
            return render(
                request,
                self.template_name,
                context
             )