opds: added search, moved to separate app

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

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index 47abe63..1180ab2 100644 (file)
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -45,16 +45,27 @@ class LazyEncoder(simplejson.JSONEncoder):
             return force_unicode(obj)
         return obj
 
             return force_unicode(obj)
         return obj
 

+# shortcut for JSON reponses
+class JSONResponse(HttpResponse):
+    def __init__(self, data={}, callback=None, **kwargs):
+        # get rid of mimetype
+        kwargs.pop('mimetype', None)
+        data = simplejson.dumps(data)
+        if callback:
+            data = callback + "(" + data + ");" 
+        super(JSONResponse, self).__init__(data, mimetype="application/json", **kwargs)
+

 
 def main_page(request):
     if request.user.is_authenticated():
         shelves = models.Tag.objects.filter(category='set', user=request.user)
         new_set_form = forms.NewSetForm()
 
 def main_page(request):
     if request.user.is_authenticated():
         shelves = models.Tag.objects.filter(category='set', user=request.user)
         new_set_form = forms.NewSetForm()

-    extra_where = "NOT catalogue_tag.category = 'set'"
-    tags = models.Tag.objects.usage_for_model(models.Book, counts=True, extra={'where': [extra_where]})
-    fragment_tags = models.Tag.objects.usage_for_model(models.Fragment, counts=True,
-        extra={'where': ["catalogue_tag.category = 'theme'"] + [extra_where]})
+
+    tags = models.Tag.objects.exclude(category__in=('set', 'book'))
+    for tag in tags:
+        tag.count = tag.get_count()

     categories = split_tags(tags)
     categories = split_tags(tags)

+    fragment_tags = categories.get('theme', [])

 
     form = forms.SearchForm()
     return render_to_response('catalogue/main_page.html', locals(),
 
     form = forms.SearchForm()
     return render_to_response('catalogue/main_page.html', locals(),


@@ -62,12 +73,29 @@ def main_page(request):
 
 
 def book_list(request):
 
 
 def book_list(request):

-    books = models.Book.objects.all()

     form = forms.SearchForm()
 
     form = forms.SearchForm()
 

-    books_by_first_letter = SortedDict()
-    for book in books:
-        books_by_first_letter.setdefault(book.title[0], []).append(book)
+    books_by_parent = {}
+    for book in models.Book.objects.all().order_by('parent_number'):
+        books_by_parent.setdefault(book.parent, []).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]:
+        authors = list(book.tags.filter(category='author'))
+        if authors:
+            for author in authors:
+                books_by_author[author].append(book)
+        else:
+            orphans.append(book)

 
     return render_to_response('catalogue/book_list.html', locals(),
         context_instance=RequestContext(request))
 
     return render_to_response('catalogue/book_list.html', locals(),
         context_instance=RequestContext(request))


@@ -105,8 +133,9 @@ def tagged_object_list(request, tags=''):
         raise Http404
 
     theme_is_set = [tag for tag in tags if tag.category == 'theme']
         raise Http404
 
     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 == tags[0].user
+    shelf_is_set = [tag for tag in tags if tag.category == 'set']
+    only_shelf = shelf_is_set and len(tags) == 1
+    only_my_shelf = only_shelf and request.user.is_authenticated() and request.user == tags[0].user

 
     objects = only_author = pd_counter = None
     categories = {}
 
     objects = only_author = pd_counter = None
     categories = {}


@@ -118,7 +147,7 @@ def tagged_object_list(request, tags=''):
 
         if shelf_tags:
             books = models.Book.tagged.with_all(shelf_tags).order_by()
 
         if shelf_tags:
             books = models.Book.tagged.with_all(shelf_tags).order_by()

-            l_tags = [book.book_tag() for book in books]
+            l_tags = models.Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in books])

             fragments = models.Fragment.tagged.with_any(l_tags, fragments)
 
         # newtagging goes crazy if we just try:
             fragments = models.Fragment.tagged.with_any(l_tags, fragments)
 
         # newtagging goes crazy if we just try:


@@ -135,12 +164,13 @@ def tagged_object_list(request, tags=''):
             objects = fragments
     else:
         # get relevant books and their tags
             objects = fragments
     else:
         # get relevant books and their tags

-        objects = models.Book.tagged.with_all(tags).order_by()
-        l_tags = [book.book_tag() for book in objects]
-        # eliminate descendants
-        descendants_keys = [book.pk for book in models.Book.tagged.with_any(l_tags)]
-        if descendants_keys:
-            objects = objects.exclude(pk__in=descendants_keys)
+        objects = models.Book.tagged.with_all(tags)
+        if not shelf_is_set:
+            # eliminate descendants
+            l_tags = models.Tag.objects.filter(category='book', slug__in=[book.book_tag_slug() for book in objects])
+            descendants_keys = [book.pk for book in models.Book.tagged.with_any(l_tags)]
+            if descendants_keys:
+                objects = objects.exclude(pk__in=descendants_keys)

 
         # get related tags from `tag_counter` and `theme_counter`
         related_counts = {}
 
         # get related tags from `tag_counter` and `theme_counter`
         related_counts = {}


@@ -169,10 +199,10 @@ def tagged_object_list(request, tags=''):
         template_name='catalogue/tagged_object_list.html',
         extra_context={
             'categories': categories,
         template_name='catalogue/tagged_object_list.html',
         extra_context={
             'categories': categories,

-            'shelf_is_set': shelf_is_set,
+            'only_shelf': only_shelf,

             'only_author': only_author,
             'pd_counter': pd_counter,
             'only_author': only_author,
             'pd_counter': pd_counter,

-            'user_is_owner': my_shelf_is_set,
+            'only_my_shelf': only_my_shelf,

             'formats_form': forms.DownloadFormatsForm(),
 
             'tags': tags,
             'formats_form': forms.DownloadFormatsForm(),
 
             'tags': tags,


@@ -201,8 +231,19 @@ def book_detail(request, slug):
     tags = list(book.tags.filter(~Q(category='set')))
     categories = split_tags(tags)
     book_children = book.children.all().order_by('parent_number')
     tags = list(book.tags.filter(~Q(category='set')))
     categories = split_tags(tags)
     book_children = book.children.all().order_by('parent_number')

-    extra_where = "catalogue_tag.category = 'theme'"
-    book_themes = models.Tag.objects.related_for_model(book_tag, models.Fragment, counts=True, extra={'where': [extra_where]})
+    
+    _book = book
+    parents = []
+    while _book.parent:
+        parents.append(_book.parent)
+        _book = _book.parent
+    parents = reversed(parents)
+
+    theme_counter = book.theme_counter
+    book_themes = models.Tag.objects.filter(pk__in=theme_counter.keys())
+    for tag in book_themes:
+        tag.count = theme_counter[tag.pk]
+

     extra_info = book.get_extra_info_value()
 
     form = forms.SearchForm()
     extra_info = book.get_extra_info_value()
 
     form = forms.SearchForm()


@@ -221,6 +262,8 @@ def book_stub_detail(request, slug):
 
 def book_text(request, slug):
     book = get_object_or_404(models.Book, slug=slug)
 
 def book_text(request, slug):
     book = get_object_or_404(models.Book, slug=slug)

+    if not book.has_html_file():
+        raise Http404

     book_themes = {}
     for fragment in book.fragments.all():
         for theme in fragment.tags.filter(category='theme'):
     book_themes = {}
     for fragment in book.fragments.all():
         for theme in fragment.tags.filter(category='theme'):


@@ -283,7 +326,7 @@ def _sqlite_word_starts_with(name, prefix):
     return Q(**kwargs)
 
 
     return Q(**kwargs)
 
 

-if settings.DATABASE_ENGINE == 'sqlite3':
+if settings.DATABASES['default']['ENGINE'] == 'django.db.backends.sqlite3':

     _word_starts_with = _sqlite_word_starts_with
 
 
     _word_starts_with = _sqlite_word_starts_with
 
 


@@ -297,7 +340,6 @@ def _tags_starting_with(prefix, user=None):
         tags = tags.filter(~Q(category='book') & (~Q(category='set') | Q(user=user)))
     else:
         tags = tags.filter(~Q(category='book') & ~Q(category='set'))
         tags = tags.filter(~Q(category='book') & (~Q(category='set') | Q(user=user)))
     else:
         tags = tags.filter(~Q(category='book') & ~Q(category='set'))

-

     return list(books) + list(tags) + list(book_stubs)
 
 
     return list(books) + list(tags) + list(book_stubs)
 
 


@@ -314,8 +356,12 @@ def _get_result_type(match):
         type = 'book'
     else:
         type = match.category
         type = 'book'
     else:
         type = match.category

-    return dict(models.TAG_CATEGORIES)[type]
+    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):
 
 
 def find_best_matches(query, user=None):


@@ -372,8 +418,29 @@ def tags_starting_with(request):
     # Prefix must have at least 2 characters
     if len(prefix) < 2:
         return HttpResponse('')
     # 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)))
+    tags_list = []
+    result = ""   
+    for tag in _tags_starting_with(prefix, request.user):
+        if not tag.name in tags_list:
+            result += "\n" + tag.name
+            tags_list.append(tag.name)
+    return HttpResponse(result)
+
+def json_tags_starting_with(request, callback=None):
+    # Callback for JSONP
+    prefix = request.GET.get('q', '')
+    callback = request.GET.get('callback', '')
+    # Prefix must have at least 2 characters
+    if len(prefix) < 2:
+        return HttpResponse('')
+    tags_list = []
+    result = ""   
+    for tag in _tags_starting_with(prefix, request.user):
+        if not tag.name in tags_list:
+            result += "\n" + tag.name
+            tags_list.append(tag.name)
+    dict_result = {"matches": tags_list}
+    return JSONResponse(dict_result, callback)

 
 # ====================
 # = Shelf management =
 
 # ====================
 # = Shelf management =


@@ -402,11 +469,11 @@ def book_sets(request, slug):
             new_shelves = [models.Tag.objects.get(pk=id) for id in form.cleaned_data['set_ids']]
 
             for shelf in [shelf for shelf in old_shelves if shelf not in new_shelves]:
             new_shelves = [models.Tag.objects.get(pk=id) for id in form.cleaned_data['set_ids']]
 
             for shelf in [shelf for shelf in old_shelves if shelf not in new_shelves]:

-                shelf.book_count -= 1
+                shelf.book_count = None

                 shelf.save()
 
             for shelf in [shelf for shelf in new_shelves if shelf not in old_shelves]:
                 shelf.save()
 
             for shelf in [shelf for shelf in new_shelves if shelf not in old_shelves]:

-                shelf.book_count += 1
+                shelf.book_count = None

                 shelf.save()
 
             book.tags = new_shelves + list(book.tags.filter(~Q(category='set') | ~Q(user=request.user)))
                 shelf.save()
 
             book.tags = new_shelves + list(book.tags.filter(~Q(category='set') | ~Q(user=request.user)))


@@ -432,7 +499,7 @@ def remove_from_shelf(request, shelf, book):
     if shelf in book.tags:
         models.Tag.objects.remove_tag(book, shelf)
 
     if shelf in book.tags:
         models.Tag.objects.remove_tag(book, shelf)
 

-        shelf.book_count -= 1
+        shelf.book_count = None

         shelf.save()
 
         return HttpResponse(_('Book was successfully removed from the shelf'))
         shelf.save()
 
         return HttpResponse(_('Book was successfully removed from the shelf'))


@@ -473,13 +540,15 @@ def download_shelf(request, slug):
     temp = tempfile.TemporaryFile()
     archive = zipfile.ZipFile(temp, 'w')
 
     temp = tempfile.TemporaryFile()
     archive = zipfile.ZipFile(temp, 'w')
 

+    already = set()

     for book in collect_books(models.Book.tagged.with_all(shelf)):
         if 'pdf' in formats and book.pdf_file:
             filename = book.pdf_file.path
             archive.write(filename, str('%s.pdf' % book.slug))
     for book in collect_books(models.Book.tagged.with_all(shelf)):
         if 'pdf' in formats and book.pdf_file:
             filename = book.pdf_file.path
             archive.write(filename, str('%s.pdf' % book.slug))

-        if 'epub' in formats and book.epub_file:
-            filename = book.epub_file.path
-            archive.write(filename, str('%s.epub' % book.slug))
+        if book.root_ancestor not in already and 'epub' in formats and book.root_ancestor.epub_file:
+            filename = book.root_ancestor.epub_file.path
+            archive.write(filename, str('%s.epub' % book.root_ancestor.slug))
+            already.add(book.root_ancestor)

         if 'odt' in formats and book.odt_file:
             filename = book.odt_file.path
             archive.write(filename, str('%s.odt' % book.slug))
         if 'odt' in formats and book.odt_file:
             filename = book.odt_file.path
             archive.write(filename, str('%s.odt' % book.slug))


@@ -515,7 +584,7 @@ def shelf_book_formats(request, shelf):
     for book in collect_books(models.Book.tagged.with_all(shelf)):
         if book.pdf_file:
             formats['pdf'] = True
     for book in collect_books(models.Book.tagged.with_all(shelf)):
         if book.pdf_file:
             formats['pdf'] = True

-        if book.epub_file:
+        if book.root_ancestor.epub_file:

             formats['epub'] = True
         if book.odt_file:
             formats['odt'] = True
             formats['epub'] = True
         if book.odt_file:
             formats['odt'] = True


@@ -612,7 +681,6 @@ def import_book(request):
             info = sys.exc_info()
             exception = pprint.pformat(info[1])
             tb = '\n'.join(traceback.format_tb(info[2]))
             info = sys.exc_info()
             exception = pprint.pformat(info[1])
             tb = '\n'.join(traceback.format_tb(info[2]))

-            _('Today is %(month)s, %(day)s.') % {'month': m, 'day': d}

             return HttpResponse(_("An error occurred: %(exception)s\n\n%(tb)s") % {'exception':exception, 'tb':tb}, mimetype='text/plain')
         return HttpResponse(_("Book imported successfully"))
     else:
             return HttpResponse(_("An error occurred: %(exception)s\n\n%(tb)s") % {'exception':exception, 'tb':tb}, mimetype='text/plain')
         return HttpResponse(_("Book imported successfully"))
     else: