X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/94bfc24e8c353a678b72f37c86adf9a4a7a78ffd..47f8090f9e8c6e91ae95578ca43664b6b18fe795:/apps/catalogue/views.py

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index b61d5e803..b4fb0924c 100644
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -1,7 +1,14 @@
 # -*- coding: utf-8 -*-
+# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
 import tempfile
 import zipfile
+import sys
+import pprint
+import traceback
 
+from django.conf import settings
 from django.template import RequestContext
 from django.shortcuts import render_to_response, get_object_or_404
 from django.http import HttpResponse, HttpResponseRedirect, Http404
@@ -37,10 +44,10 @@ 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"'
+    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]})
+        extra={'where': ["catalogue_tag.category = 'theme'"] + [extra_where]})
     categories = split_tags(tags)
     
     form = forms.SearchForm()
@@ -79,10 +86,12 @@ def tagged_object_list(request, tags=''):
     theme_is_set = len([tag for tag in tags if tag.category == 'theme']) > 0
     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)
     
-    extra_where = 'catalogue_tag.category NOT IN ("set", "book")'
+    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)
 
@@ -95,7 +104,14 @@ def tagged_object_list(request, tags=''):
         queryset_or_model=model,
         tags=tags,
         template_name='catalogue/tagged_object_list.html',
-        extra_context = {'categories': categories, 'shelf_is_set': shelf_is_set, 'user_is_owner': user_is_owner },
+        extra_context = {
+            'categories': categories,
+            'shelf_is_set': shelf_is_set,
+            'only_author': only_author,
+            'pd_counter': pd_counter,
+            'user_is_owner': user_is_owner,
+            'formats_form': forms.DownloadFormatsForm(),
+        },
     )
 
 
@@ -111,12 +127,16 @@ def book_fragments(request, book_slug, theme_slug):
 
 
 def book_detail(request, slug):
-    book = get_object_or_404(models.Book, slug=slug)
+    try:
+        book = models.Book.objects.get(slug=slug)
+    except models.Book.DoesNotExist:
+        return book_stub_detail(request, slug)
+
     book_tag = get_object_or_404(models.Tag, slug = 'l-' + slug)
     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"'
+    extra_where = "catalogue_tag.category = 'theme'"
     book_themes = models.Tag.objects.related_for_model(book_tag, models.Fragment, counts=True, extra={'where': [extra_where]})
     extra_info = book.get_extra_info_value()
     
@@ -125,6 +145,15 @@ def book_detail(request, slug):
         context_instance=RequestContext(request))
 
 
+def book_stub_detail(request, slug):
+    book = get_object_or_404(models.BookStub, slug=slug)
+    pd_counter = book.pd
+    form = forms.SearchForm()
+    
+    return render_to_response('catalogue/book_stub_detail.html', locals(),
+        context_instance=RequestContext(request))
+    
+
 def book_text(request, slug):
     book = get_object_or_404(models.Book, slug=slug)
     book_themes = {}
@@ -141,40 +170,67 @@ def book_text(request, slug):
 # ==========
 # = Search =
 # ==========
+def _word_starts_with(name, prefix):
+    """returns a Q object gettings models having `name` contain a word
+    starting with `prefix`
+    """
+    kwargs = {}
+    if settings.DATABASE_ENGINE in ('mysql', 'postgresql_psycopg2', 'postgresql'):
+        # we must escape `prefix` so that it only matches literally
+        for special in r'\^$.*+?|(){}[]':
+            prefix = prefix.replace(special, '\\' + special)
+        
+        # we could use a [[:<:]] (word start), 
+        # but we want both `xy` and `(xy` to catch `(xyz)`
+        kwargs['%s__iregex' % name] = u"(^|[^[:alpha:]])%s" % prefix
+    else:
+        # don't know how to do a generic regex
+        # checking for simple icontain instead
+        kwargs['%s__icontains' % name] = prefix
+    return Q(**kwargs)
+
+
 def _tags_starting_with(prefix, user):
-    books = models.Book.objects.filter(title__icontains=prefix)
-    tags = models.Tag.objects.filter(name__icontains=prefix)
+    book_stubs = models.BookStub.objects.filter(_word_starts_with('title', prefix))
+    books = models.Book.objects.filter(_word_starts_with('title', prefix))
+    book_stubs = filter(lambda x: x not in books, book_stubs)
+    tags = models.Tag.objects.filter(_word_starts_with('name', prefix))
     if user.is_authenticated():
         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)
+    return list(books) + list(tags) + list(book_stubs)
         
 
 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:
         tag_list = models.Tag.get_tag_list(tags)
     except:
         tag_list = []
+
+    # Prefix must have at least 2 characters
+    if len(prefix) < 2:
+        return render_to_response('catalogue/search_no_hits.html', {'query':prefix, 'tags':tag_list},
+            context_instance=RequestContext(request))
     
     result = _tags_starting_with(prefix, request.user)
     if len(result) > 0:
         tag = result[0]
-        if isinstance(tag, models.Book):
+        if isinstance(tag, models.Book) or isinstance(tag, models.BookStub):
             return HttpResponseRedirect(tag.get_absolute_url())
         else:
             tag_list.append(tag)
-        
-    return HttpResponseRedirect(reverse('catalogue.views.tagged_object_list', 
-        kwargs={'tags': '/'.join(tag.slug for tag in tag_list)}
-    ))
+            
+            return HttpResponseRedirect(reverse('catalogue.views.tagged_object_list', 
+                kwargs={'tags': '/'.join(tag.slug for tag in tag_list)}
+            ))
+    else:
+        return render_to_response('catalogue/search_no_hits.html', {'query':prefix, 'tags':tag_list},
+            context_instance=RequestContext(request))
 
 
 def tags_starting_with(request):
@@ -240,12 +296,28 @@ def remove_from_shelf(request, shelf, book):
     book = get_object_or_404(models.Book, slug=book)
     shelf = get_object_or_404(models.Tag, slug=shelf, category='set', user=request.user)
     
-    models.Tag.objects.remove_tag(book, shelf)
-    
-    shelf.book_count -= 1
-    shelf.save()
-    
-    return HttpResponse('Usunieto')
+    if shelf in book.tags:
+        models.Tag.objects.remove_tag(book, shelf)
+
+        shelf.book_count -= 1
+        shelf.save()
+
+        return HttpResponse('Usunięto')
+    else:
+        return HttpResponse('Książki nie ma na półce')
+
+
+def collect_books(books):
+    """
+    Returns all real books in collection.
+    """
+    result = []
+    for book in books:
+        if len(book.children.all()) == 0:
+            result.append(book)
+        else:
+            result += collect_books(book.children.all())
+    return result
 
 
 @cache.never_cache
@@ -256,31 +328,34 @@ def download_shelf(request, slug):
     be used for large dynamic PDF files.                                        
     """
     shelf = get_object_or_404(models.Tag, slug=slug, category='set')
-            
+    
+    formats = []
+    form = forms.DownloadFormatsForm(request.GET)
+    if form.is_valid():
+        formats = form.cleaned_data['formats']
+    if len(formats) == 0:
+        formats = ['pdf', 'odt', 'txt', 'mp3', 'ogg']
+    
     # Create a ZIP archive
     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:
+        if 'pdf' in formats and book.pdf_file:
             filename = book.pdf_file.path
             archive.write(filename, str('%s.pdf' % book.slug))
-        if book.odt_file:
+        if 'odt' in formats and book.odt_file:
             filename = book.odt_file.path
             archive.write(filename, str('%s.odt' % book.slug))
-        if book.txt_file:
+        if 'txt' in formats and book.txt_file:
             filename = book.txt_file.path
             archive.write(filename, str('%s.txt' % book.slug))
+        if 'mp3' in formats and book.mp3_file:
+            filename = book.mp3_file.path
+            archive.write(filename, str('%s.mp3' % book.slug))
+        if 'ogg' in formats and book.ogg_file:
+            filename = book.ogg_file.path
+            archive.write(filename, str('%s.ogg' % book.slug))
     archive.close()
     
     response = HttpResponse(content_type='application/zip', mimetype='application/x-zip-compressed')
@@ -292,6 +367,30 @@ def download_shelf(request, slug):
     return response
 
 
+@cache.never_cache
+def shelf_book_formats(request, shelf):
+    """"
+    Returns a list of formats of books in shelf.
+    """
+    shelf = get_object_or_404(models.Tag, slug=shelf, category='set')
+
+    formats = {'pdf': False, 'odt': False, 'txt': False, 'mp3': False, 'ogg': False}
+    
+    for book in collect_books(models.Book.tagged.with_all(shelf)):
+        if book.pdf_file:
+            formats['pdf'] = True
+        if book.odt_file:
+            formats['odt'] = True
+        if book.txt_file:
+            formats['txt'] = True
+        if book.mp3_file:
+            formats['mp3'] = True
+        if book.ogg_file:
+            formats['ogg'] = True
+
+    return HttpResponse(LazyEncoder().encode(formats))
+
+
 @login_required
 @require_POST
 @cache.never_cache
@@ -369,10 +468,22 @@ def import_book(request):
     """docstring for import_book"""
     book_import_form = forms.BookImportForm(request.POST, request.FILES)
     if book_import_form.is_valid():
-        # try:
-        book_import_form.save()
-        # except:
-            # return HttpResponse("Error importing book: %r" % (sys.exc_info(),))
+        try:
+            book_import_form.save()
+        except:
+            info = sys.exc_info()
+            exception = pprint.pformat(info[1])
+            tb = '\n'.join(traceback.format_tb(info[2]))
+            return HttpResponse("An error occurred: %s\n\n%s" % (exception, tb), mimetype='text/plain')
         return HttpResponse("Book imported successfully")
     else:
-        return HttpResponse("Error importing file: %r" % book_import_form.errors)
\ No newline at end of file
+        return HttpResponse("Error importing file: %r" % book_import_form.errors)
+
+
+
+def clock(request):
+    """ Provides server time for jquery.countdown,
+    in a format suitable for Date.parse()
+    """
+    from datetime import datetime
+    return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S'))