#817: audiobooks, daisy collections

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

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index d74ca75..de2c17b 100644 (file)
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -72,24 +72,32 @@ def main_page(request):
         context_instance=RequestContext(request))
 
 
-def book_list(request):
+def book_list(request, filter=None, template_name='catalogue/book_list.html'):
+    """ generates a listing of all books, optionally filtered with a test function """
+
     form = forms.SearchForm()
 
     books_by_parent = {}
-    for book in models.Book.objects.all().order_by('parent_number'):
-        books_by_parent.setdefault(book.parent, []).append(book)
+    books = models.Book.objects.all().order_by('parent_number', 'title').only('title', 'parent', 'slug')
+    if filter:
+        books = books.filter(filter)
+        book_ids = set((book.pk for book in books))
+        for book in books:
+            parent = book.parent_id
+            if parent not in book_ids:
+                parent = None
+            books_by_parent.setdefault(parent, []).append(book)
+    else:
+        for book in books:
+            books_by_parent.setdefault(book.parent_id, []).append(book)
 
     orphans = []
     books_by_author = SortedDict()
     books_nav = SortedDict()
     for tag in models.Tag.objects.filter(category='author'):
         books_by_author[tag] = []
-        if books_nav.has_key(tag.sort_key[0]):
-            books_nav[tag.sort_key[0]].append(tag)
-        else:
-            books_nav[tag.sort_key[0]] = [tag]
 
-    for book in books_by_parent[None]:
+    for book in books_by_parent.get(None,()):
         authors = list(book.tags.filter(category='author'))
         if authors:
             for author in authors:
@@ -97,10 +105,24 @@ def book_list(request):
         else:
             orphans.append(book)
 
-    return render_to_response('catalogue/book_list.html', locals(),
+    for tag in books_by_author:
+        if books_by_author[tag]:
+            books_nav.setdefault(tag.sort_key[0], []).append(tag)
+
+    return render_to_response(template_name, locals(),
         context_instance=RequestContext(request))
 
 
+def audiobook_list(request):
+    return book_list(request, ~Q(mp3_file='') | ~Q(ogg_file=''),
+                     template_name='catalogue/audiobook_list.html')
+
+
+def daisy_list(request):
+    return book_list(request, ~Q(daisy_file=''),
+                     template_name='catalogue/daisy_list.html')
+
+
 def differentiate_tags(request, tags, ambiguous_slugs):
     beginning = '/'.join(tag.url_chunk for tag in tags)
     unparsed = '/'.join(ambiguous_slugs[1:])
@@ -359,6 +381,10 @@ def _get_result_type(match):
     return type
 
 
+def books_starting_with(prefix):
+    prefix = prefix.lower()
+    return models.Book.objects.filter(_word_starts_with('title', prefix))
+
 
 def find_best_matches(query, user=None):
     """ Finds a Book, Tag or Bookstub best matching a query.
@@ -451,13 +477,13 @@ def user_shelves(request):
 
 @cache.never_cache
 def book_sets(request, slug):
+    if not request.user.is_authenticated():
+        return HttpResponse(_('<p>To maintain your shelves you need to be logged in.</p>'))
+
     book = get_object_or_404(models.Book, slug=slug)
     user_sets = models.Tag.objects.filter(category='set', user=request.user)
     book_sets = book.tags.filter(category='set', user=request.user)
 
-    if not request.user.is_authenticated():
-        return HttpResponse(_('<p>To maintain your shelves you need to be logged in.</p>'))
-
     if request.method == 'POST':
         form = forms.ObjectSetsForm(book, request.user, request.POST)
         if form.is_valid():
@@ -530,7 +556,7 @@ def download_shelf(request, slug):
     if form.is_valid():
         formats = form.cleaned_data['formats']
     if len(formats) == 0:
-        formats = ['pdf', 'epub', 'odt', 'txt', 'mp3', 'ogg']
+        formats = ['pdf', 'epub', 'odt', 'txt', 'mp3', 'ogg', 'daisy']
 
     # Create a ZIP archive
     temp = tempfile.TemporaryFile()
@@ -557,6 +583,9 @@ def download_shelf(request, slug):
         if 'ogg' in formats and book.ogg_file:
             filename = book.ogg_file.path
             archive.write(filename, str('%s.ogg' % book.slug))
+        if 'daisy' in formats and book.daisy_file:
+            filename = book.daisy_file.path
+            archive.write(filename, str('%s.daisy.zip' % book.slug))
     archive.close()
 
     response = HttpResponse(content_type='application/zip', mimetype='application/x-zip-compressed')
@@ -575,7 +604,7 @@ def shelf_book_formats(request, shelf):
     """
     shelf = get_object_or_404(models.Tag, slug=shelf, category='set')
 
-    formats = {'pdf': False, 'epub': False, 'odt': False, 'txt': False, 'mp3': False, 'ogg': False}
+    formats = {'pdf': False, 'epub': False, 'odt': False, 'txt': False, 'mp3': False, 'ogg': False, 'daisy': False}
 
     for book in collect_books(models.Book.tagged.with_all(shelf)):
         if book.pdf_file:
@@ -590,6 +619,8 @@ def shelf_book_formats(request, shelf):
             formats['mp3'] = True
         if book.ogg_file:
             formats['ogg'] = True
+        if book.daisy_file:
+            formats['daisy'] = True
 
     return HttpResponse(LazyEncoder().encode(formats))