- # Choose a collection for main.
- try:
- ctx['collection'] = Collection.objects.order_by('?')[:1][0]
- except IndexError:
- pass
-
- ctx['best'] = Book.objects.order_by('?')[:5]
+ # Choose collections for main.
+ ctx['collections'] = Collection.objects.filter(listed=True).order_by('?')[:4]
+
+ best = []
+ best_places = 5
+ recommended_collection = None
+ for recommended in Collection.objects.filter(listed=True, role='recommend').order_by('?'):
+ if recommended_collection is None:
+ recommended_collection = recommended
+ books = list(recommended.get_books().exclude(id__in=[b.id for b in best]).order_by('?')[:best_places])
+ best.extend(books)
+ best_places -= len(books)
+ if not best_places:
+ break
+ ctx['recommended_collection'] = recommended_collection
+ if best_places:
+ best.extend(
+ list(
+ Book.objects.filter(findable=True).exclude(id__in=[b.id for b in best]).order_by('?')[:best_places]
+ )
+ )
+ ctx['best'] = best