Update breadcrumbs generation

        if searchtype == 'm':

            books = Book.objects.extra(where=["upper(title) like %s"], params=["%%%s%%"%searchterms.upper()]).order_by('title','authors','-docdate')

            args['breadcrumbs'] = ['Books','Search by title',searchterms]

        elif searchtype == 'a':

            try:

                author_id = int(searchterms)

                author = Author.objects.get(id=author_id)

                aname = "%s %s"%(author.last_name,author.first_name)

            except:

                author_id = 0

                aname = ""                  

            books = Book.objects.filter(authors=author_id).order_by('title','authors','-docdate')  

            args['breadcrumbs'] = ['Books','Search by Author',aname]    

        # Поиск книг по серии

        elif searchtype == 's':

            try:

                ser_id = int(searchterms)

                ser = Series.objects.get(id=ser_id).ser

            except:

                ser_id = 0

            books = Book.objects.filter(series=ser_id).order_by('title','authors','-docdate')    

                ser = ""

            books = Book.objects.filter(series=ser_id).order_by('title','series','-docdate')    

            args['breadcrumbs'] = ['Books','Search by Series',ser]

        # Поиск книг на книжной полке            

        elif searchtype == 'u':

            if AUTH:

                books = Book.objects.filter(bookshelf__user=request.user).order_by('-bookshelf__readtime')

                args['breadcrumbs'] = ['Books','Bookshelf',request.user.username]

                #books = bookshelf.objects.filter(user=request.user).select_related('book')              

            else:

                books={}        

                args['breadcrumbs'] = ['Books', 'Bookshelf'] 

        # Поиск дубликатов для книги            

        elif searchtype == 'd':

            #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).order_by('-docdate')

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

        elif searchtype == 'i':

            try:

                book_id = int(searchterms)

                btitle = Book.objects.get(id=book_id).title

            except:

                book_id = 0

                btitle = ""

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

            args['breadcrumbs'] = ['Books',btitle]

        if len(books)>0:

            books = books.prefetch_related('authors','genres','series')

        args['page_range']= [ i for i in range(firstpage,lastpage+1)]  

        args['searchobject'] = 'title'   

        args['current'] = 'search'  

        args['breadcrumbs'] = ['Search','Books',searchterms]

    return render(request,'sopds_books.html', args)

        args['page_range']= [ i for i in range(firstpage,lastpage+1)]       

        args['searchobject'] = 'series'

        args['current'] = 'search'        

        args['breadcrumbs'] = ['Search','Series',searchterms]

        args['breadcrumbs'] = ['Series','Search',searchterms]

    return render(request,'sopds_series.html', args)

        args['page_range']= [ i for i in range(firstpage,lastpage+1)]       

        args['searchobject'] = 'author'

        args['current'] = 'search'       

        args['breadcrumbs'] = ['Search','Authors',searchterms]

        args['breadcrumbs'] = ['Authors','Search',searchterms]

    return render(request,'sopds_authors.html', args)