Quick and dirty random_book getting

from random import randint

from django.shortcuts import render, render_to_response, redirect, Http404

from django.template.context_processors import csrf

from django.core.paginator import Paginator, InvalidPage

from opds_catalog.models import Book, Author, Series, bookshelf

from opds_catalog import models

from opds_catalog.models import Book, Author, Series, bookshelf, Counter

from opds_catalog.settings import MAXITEMS, DOUBLES_HIDE, AUTH, VERSION

from sopds_web_backend.settings import HALF_PAGES_LINKS

    user=request.user

    if user.is_authenticated():

        result=[]

        for i,row in enumerate(bookshelf.objects.filter(user=user).order_by('-readtime')[:8]):

        for row in bookshelf.objects.filter(user=user).order_by('-readtime')[:8]:

            book = Book.objects.get(id=row.book_id)

            p = {'id':row.id, 'readtime': row.readtime, 'book_id': row.book_id, 'title': book.title, 'authors':book.authors.values()}       

            result.append(p)    

        args['bookshelf']=result

#        random_book = Book.objects.all().order_by('?')[:1].get()

#        args['random_book'] = random_book

        random_id = randint(1,Counter.objects.get_counter(models.counter_allbooks))

        try:

            random_book = Book.objects.get(id=random_id)

        except Book.DoesNotExist:

            random_book= None

        args['random_book'] = random_book

    return args