Set null on user delete.

[wolnelektury.git] / src / wolnelektury / views.py

diff --git a/src/wolnelektury/views.py b/src/wolnelektury/views.py
index 2736acc..2cc0fd7 100644 (file)
--- a/src/wolnelektury/views.py
+++ b/src/wolnelektury/views.py
@@ -27,7 +27,7 @@ from wolnelektury.forms import RegistrationForm, SocialSignupForm
 @never_cache
 def main_page(request):
     ctx = {
-        'last_published': Book.objects.exclude(cover_thumb='').filter(parent=None).order_by('-created_at')[:6],
+        'last_published': Book.objects.exclude(cover_thumb='').filter(findable=True, parent=None).order_by('-created_at')[:6],
         'theme_books': [],
     }
 
@@ -35,7 +35,7 @@ def main_page(request):
     if Fragment.objects.exists():
         while True:
             ctx['theme'] = Tag.objects.filter(category='theme').order_by('?')[:1][0]
-            tf = Fragment.tagged.with_any([ctx['theme']]).select_related('book').order_by('?')[:100]
+            tf = Fragment.tagged.with_any([ctx['theme']]).select_related('book').filter(book__findable=True).order_by('?')[:100]
             if not tf:
                 continue
             ctx['theme_fragment'] = tf[0]
@@ -46,13 +46,24 @@ def main_page(request):
                     break
             break
 
-    # Choose a collection for main.
-    try:
-        ctx['collection'] = Collection.objects.order_by('?')[:1][0]
-    except IndexError:
-        pass
+    # Choose collections for main.
+    ctx['collections'] = Collection.objects.filter(listed=True).order_by('?')[:4]
 
-    ctx['best'] = Book.objects.order_by('?')[:5]
+    best = []
+    best_places = 5
+    for recommended in Collection.objects.filter(listed=True, role='recommend').order_by('?'):
+        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
+    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
 
     return render(request, "main_page.html", ctx)