Update i serch type alghoritm in SerachBookas view

            #try:

            book_id = int(searchterms)

            mbook = Book.objects.get(id=book_id)

            books = Book.objects.filter(title__iexact=mbook.title, authors__in=mbook.authors.all()).exclude(id=book_id).distinct().order_by('-docdate')

            books = Book.objects.filter(title=mbook.title, authors__in=mbook.authors.all()).exclude(id=book_id).distinct().order_by('-docdate')

            args['breadcrumbs'] = [_('Books'),_('Doubles for book'),mbook.title]

            args['searchobject'] = 'title'

        # Поиск книги по ID. Хотел найти еще и дубликаты к книге, но почему-то не работает запрос правильно. Ума не приложу почему.    

        elif searchtype == 'i':

            try:

                book_id = int(searchterms)

                mbook = Book.objects.get(id=book_id)

                #mbook = Book.objects.get(id=book_id)

            except:

                book_id = 0

                mbook = None

            #books = Book.objects.filter(id=book_id) 

            books = Book.objects.filter(title__iexact=mbook.title, authors__in=mbook.authors.all()).distinct().order_by('-docdate')                

                #mbook = None

            books = Book.objects.filter(id=book_id) 

            args['breadcrumbs'] = [_('Books'),mbook.title]

            #books = Book.objects.filter(title=mbook.title, authors__in=mbook.authors.all()).distinct().order_by('-docdate')                

            #args['breadcrumbs'] = [_('Books'),mbook.title]

            args['searchobject'] = 'title'

        # prefetch_related on sqlite on items >999 therow error "too many SQL variables"