Fixed handling of wers_akap and wers_wciety tags, where the immediate predecessor...

[wolnelektury.git] / apps / catalogue / views.py

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index de75803..b73552e 100644 (file)
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -16,7 +16,6 @@ from django.utils import simplejson
 from django.utils.functional import Promise
 from django.utils.encoding import force_unicode
 from django.views.decorators import cache
-from django.core.servers.basehttp import FileWrapper
 
 from catalogue import models
 from catalogue import forms
@@ -80,7 +79,7 @@ def tagged_object_list(request, tags=''):
     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:
+    if not (theme_is_set or shelf_is_set):
         model=models.Book.objects.filter(parent=None)
     
     return newtagging_views.tagged_object_list(
@@ -120,47 +119,49 @@ def book_text(request, slug):
 # ==========
 # = Search =
 # ==========
-def search(request):
-    query = request.GET.get('q', '')
-    tags = request.GET.get('tags', '')
-    if tags == '':
-        tags = []
-
-    try:
-        tag_list = models.Tag.get_tag_list(tags)
-        tag = models.Tag.objects.get(name=query)
-    except models.Tag.DoesNotExist:
-        try:
-            book = models.Book.objects.get(title=query)
-            return HttpResponseRedirect(book.get_absolute_url())
-        except models.Book.DoesNotExist:
-            return HttpResponseRedirect(reverse('catalogue.views.main_page'))
+def _tags_starting_with(prefix, user):
+    books = models.Book.objects.filter(title__icontains=prefix)
+    tags = models.Tag.objects.filter(name__icontains=prefix)
+    if user.is_authenticated():
+        tags = tags.filter(~Q(category='set') | Q(user=user))
     else:
-        tag_list.append(tag)
-        return HttpResponseRedirect(reverse('catalogue.views.tagged_object_list', 
-            kwargs={'tags': '/'.join(tag.slug for tag in tag_list)}
-        ))
+        tags = tags.filter(~Q(category='set'))
 
+    return list(books) + list(tags)
+        
 
-def tags_starting_with(request):
+def search(request):
+    tags = request.GET.get('tags', '')
+    prefix = request.GET.get('q', '')
+    # Prefix must have at least 2 characters
+    if len(prefix) < 2:
+        return HttpResponse('')
+    
     try:
-        prefix = request.GET['q']
-        if len(prefix) < 2:
-            raise KeyError
-
-        books = models.Book.objects.filter(title__icontains=prefix)
-        tags = models.Tag.objects.filter(name__icontains=prefix)
-        if request.user.is_authenticated():
-            tags = tags.filter(~Q(category='set') | Q(user=request.user))
+        tag_list = models.Tag.get_tag_list(tags)
+    except:
+        tag_list = []
+    
+    result = _tags_starting_with(prefix, request.user)
+    if len(result) > 0:
+        tag = result[0]
+        if isinstance(tag, models.Book):
+            return HttpResponseRedirect(tag.get_absolute_url())
         else:
-            tags = tags.filter(~Q(category='set'))
-
-        completions = [book.title for book in books] + [tag.name for tag in tags]
+            tag_list.append(tag)
+        
+    return HttpResponseRedirect(reverse('catalogue.views.tagged_object_list', 
+        kwargs={'tags': '/'.join(tag.slug for tag in tag_list)}
+    ))
 
-        return HttpResponse('\n'.join(completions))    
 
-    except KeyError:
+def tags_starting_with(request):
+    prefix = request.GET['q']
+    # Prefix must have at least 2 characters
+    if len(prefix) < 2:
         return HttpResponse('')
+    
+    return HttpResponse('\n'.join(tag.name for tag in _tags_starting_with(prefix, request.user)))
 
 
 # ====================
@@ -201,7 +202,7 @@ def book_sets(request, slug):
         context_instance=RequestContext(request))
 
 
-@cache.cache_control(must_revalidate=True, max_age=1800)
+@cache.never_cache
 def download_shelf(request, slug):
     """"
     Create a ZIP archive on disk and transmit it in chunks of 8KB,
@@ -209,20 +210,39 @@ def download_shelf(request, slug):
     be used for large dynamic PDF files.                                        
     """
     shelf = get_object_or_404(models.Tag, slug=slug, category='set')
-    
+            
     # Create a ZIP archive
-    temp = tempfile.TemporaryFile()
-    archive = zipfile.ZipFile(temp, 'w', zipfile.ZIP_DEFLATED)
-    for book in models.Book.tagged.with_all(shelf):
-        filename = book.html_file.path
-        archive.write(filename, str('%s.html' % book.slug))
+    temp = temp = tempfile.TemporaryFile()
+    archive = zipfile.ZipFile(temp, 'w')
+    
+    # Collect all books to include in ZIP archive
+    def collect_books(books):
+        result = []
+        for book in books:
+            if len(book.children.all()) == 0:
+                result.append(book)
+            else:
+                result += collect_books(book.children.all())
+        return result
+    
+    for book in collect_books(models.Book.tagged.with_all(shelf)):
+        if book.pdf_file:
+            filename = book.pdf_file.path
+            archive.write(filename, str('%s.pdf' % book.slug))
+        if book.odt_file:
+            filename = book.odt_file.path
+            archive.write(filename, str('%s.odt' % book.slug))
+        if book.txt_file:
+            filename = book.txt_file.path
+            archive.write(filename, str('%s.txt' % book.slug))
     archive.close()
     
-    wrapper = FileWrapper(temp)
-    response = HttpResponse(wrapper, content_type='application/zip')
-    response['Content-Disposition'] = 'attachment; filename=%s.zip' % shelf.slug
+    response = HttpResponse(content_type='application/zip', mimetype='application/x-zip-compressed')
+    response['Content-Disposition'] = 'attachment; filename=%s.zip' % shelf.sort_key
     response['Content-Length'] = temp.tell()
+    
     temp.seek(0)
+    response.write(temp.read())
     return response