From d467f1fa349730919e9fe906287e63563c888063 Mon Sep 17 00:00:00 2001
From: Radek Czajka <radoslaw.czajka@nowoczesnapolska.org.pl>
Date: Tue, 25 May 2010 10:48:12 +0200
Subject: [PATCH] fixed theme counts (#318, #319)

---
 apps/catalogue/views.py | 67 ++++++++++++++++++++++++++++++-----------
 1 file changed, 49 insertions(+), 18 deletions(-)

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index cf1461feb..de72b046a 100644
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -83,28 +83,59 @@ def tagged_object_list(request, tags=''):
     if len([tag for tag in tags if tag.category == 'book']):
         raise Http404
     
-    model = models.Book
-    shelf = [tag for tag in tags if tag.category == 'set']
-    shelf_is_set = (len(tags) == 1 and tags[0].category == 'set')
-    theme_is_set = len([tag for tag in tags if tag.category == 'theme']) > 0
+    theme_is_set = [tag for tag in tags if tag.category == 'theme']
+    shelf_is_set = len(tags) == 1 and tags[0].category == 'set'
+    my_shelf_is_set = shelf_is_set and request.user.is_authenticated() and request.user == shelf[0].user
+    
+    objects = only_author = pd_counter = categories = None
+    
     if theme_is_set:
-        model = models.Fragment
-    only_author = len(tags) == 1 and tags[0].category == 'author'
-    pd_counter = only_author and tags[0].goes_to_pd()
-
-    user_is_owner = (len(shelf) and request.user.is_authenticated() and request.user == shelf[0].user)
+        shelf_tags = [tag for tag in tags if tag.category == 'set']
+        fragment_tags = [tag for tag in tags if tag.category != 'set']
+        fragments = models.Fragment.tagged.with_all(fragment_tags)
+        
+        if shelf_tags:
+            books = models.Book.tagged.with_all(shelf_tags)
+            l_tags = [models.Tag.objects.get(slug = 'l-' + book.slug) for book in books]
+            fragments = (fragment for fragment in models.Fragment.tagged.with_any(l_tags) if fragment in fragments)
+        
+        fragment_keys = (fragment.pk for fragment in fragments)
+        if fragment_keys:
+            related_tags = models.Fragment.tags.usage(counts=True,
+                                filters={'pk__in': fragment_keys}, 
+                                extra={'where': ["catalogue_tag.category != 'book'"]})
+            related_tags = (tag for tag in related_tags if tag not in fragment_tags)
+            categories = split_tags(related_tags)
+            
+            objects = fragments
+    else:
+        books = models.Book.tagged.with_all(tags)
+        l_tags = [models.Tag.objects.get(slug = 'l-' + book.slug) for book in books]
+        book_keys = [book.pk for book in books]
+        if book_keys:
+            related_tags = models.Book.tags.usage(counts=True,
+                                filters={'pk__in': book_keys}, 
+                                extra={'where': ["catalogue_tag.category NOT IN ('set', 'book', 'theme')"]})
+            categories = split_tags(related_tags)
     
-    extra_where = "catalogue_tag.category NOT IN ('set', 'book')"
-    related_tags = models.Tag.objects.related_for_model(tags, model, counts=True, extra={'where': [extra_where]})
-    categories = split_tags(related_tags)
-
-    if not (theme_is_set or shelf_is_set):
-        model=models.Book.objects.filter(parent=None)
+            fragment_keys = [fragment.pk for fragment in models.Fragment.tagged.with_any(l_tags)]
+            if fragment_keys:
+                categories['theme'] = models.Fragment.tags.usage(counts=True,
+                                    filters={'pk__in': fragment_keys}, 
+                                    extra={'where': ["catalogue_tag.category = 'theme'"]})
+                
+            books = books.exclude(parent__in = book_keys)
+            objects = books
+        
+    if not objects:
+        only_author = len(tags) == 1 and tags[0].category == 'author'
+        pd_counter = only_author and tags[0].goes_to_pd()
+        objects = models.Book.objects.none()
     
     return newtagging_views.tagged_object_list(
         request,
         tag_model=models.Tag,
-        queryset_or_model=model,
+        queryset_or_model=objects,
         tags=tags,
         template_name='catalogue/tagged_object_list.html',
         extra_context = {
@@ -112,7 +143,7 @@ def tagged_object_list(request, tags=''):
             'shelf_is_set': shelf_is_set,
             'only_author': only_author,
             'pd_counter': pd_counter,
-            'user_is_owner': user_is_owner,
+            'user_is_owner': my_shelf_is_set,
             'formats_form': forms.DownloadFormatsForm(),
         },
     )
@@ -532,4 +563,4 @@ def clock(request):
     in a format suitable for Date.parse()
     """
     from datetime import datetime
-    return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S'))
\ No newline at end of file
+    return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S'))
-- 
2.20.1