edit info pages as chunks

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

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index 92aa3e0..b32a310 100644 (file)
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -1,10 +1,15 @@
 # -*- coding: utf-8 -*-
 # -*- 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
 import tempfile
 import zipfile
 import sys
 import pprint
 import traceback

+import re

 
 

+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
 from django.template import RequestContext
 from django.shortcuts import render_to_response, get_object_or_404
 from django.http import HttpResponse, HttpResponseRedirect, Http404


@@ -18,6 +23,7 @@ from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
 from django.utils import simplejson
 from django.utils.functional import Promise
 from django.utils.encoding import force_unicode
 from django.utils import simplejson
 from django.utils.functional import Promise
 from django.utils.encoding import force_unicode

+from django.utils.http import urlquote_plus

 from django.views.decorators import cache
 
 from catalogue import models
 from django.views.decorators import cache
 
 from catalogue import models


@@ -40,10 +46,10 @@ def main_page(request):
     if request.user.is_authenticated():
         shelves = models.Tag.objects.filter(category='set', user=request.user)
         new_set_form = forms.NewSetForm()
     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,
     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()
     categories = split_tags(tags)
     
     form = forms.SearchForm()


@@ -82,10 +88,12 @@ 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
     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)
     
 
     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)
 
     related_tags = models.Tag.objects.related_for_model(tags, model, counts=True, extra={'where': [extra_where]})
     categories = split_tags(related_tags)
 


@@ -101,6 +109,8 @@ def tagged_object_list(request, tags=''):
         extra_context = {
             'categories': categories,
             'shelf_is_set': shelf_is_set,
         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(),
         },
             'user_is_owner': user_is_owner,
             'formats_form': forms.DownloadFormatsForm(),
         },


@@ -119,12 +129,16 @@ def book_fragments(request, book_slug, theme_slug):
 
 
 def book_detail(request, 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')
     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()
     
     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()
     


@@ -133,6 +147,15 @@ def book_detail(request, slug):
         context_instance=RequestContext(request))
 
 
         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 = {}
 def book_text(request, slug):
     book = get_object_or_404(models.Book, slug=slug)
     book_themes = {}


@@ -149,40 +172,109 @@ def book_text(request, slug):
 # ==========
 # = Search =
 # ==========
 # ==========
 # = Search =
 # ==========

+
+def _no_diacritics_regexp(query):
+    """ returns a regexp for searching for a query without diacritics
+    
+    should be locale-aware """
+    names = {'a':u'ą', 'c':u'ć', 'e':u'ę', 'l': u'ł', 'n':u'ń', 'o':u'ó', 's':u'ś', 'z':u'ź|ż'}
+    def repl(m):
+        l = m.group()
+        return "(%s|%s)" % (l, names[l])
+    return re.sub('[%s]'%(''.join(names.keys())), repl, query)
+
+def _word_starts_with(name, prefix):
+    """returns a Q object getting models having `name` contain a word
+    starting with `prefix`
+    """
+    kwargs = {}
+    if settings.DATABASE_ENGINE in ('mysql', 'postgresql_psycopg2', 'postgresql'):
+        prefix = _no_diacritics_regexp(re.escape(prefix))
+        # 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_exact_matches(prefix, user):
+    book_stubs = models.BookStub.objects.filter(title__iexact = prefix)
+    books = models.Book.objects.filter(title__iexact = prefix)
+    book_stubs = filter(lambda x: x not in books, book_stubs)
+    tags = models.Tag.objects.filter(name__iexact = 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) + list(book_stubs)
+
+

 def _tags_starting_with(prefix, user):
 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'))
 
     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 _get_result_link(match, tag_list):
+    if isinstance(match, models.Book) or isinstance(match, models.BookStub):
+        return match.get_absolute_url()
+    else:
+        return reverse('catalogue.views.tagged_object_list', 
+            kwargs={'tags': '/'.join(tag.slug for tag in tag_list + [match])}
+        )
+
+def _get_result_type(match):
+    if isinstance(match, models.Book) or isinstance(match, models.BookStub):
+        type = 'book'
+    else:
+        type = match.category
+    return dict(models.TAG_CATEGORIES)[type]
+    
+
+

 def search(request):
     tags = request.GET.get('tags', '')
     prefix = request.GET.get('q', '')
 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 = []
     
     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_too_short.html', {'tags':tag_list, 'prefix':prefix},
+            context_instance=RequestContext(request))

     
     

-    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:
-            tag_list.append(tag)
-        
-    return HttpResponseRedirect(reverse('catalogue.views.tagged_object_list', 
-        kwargs={'tags': '/'.join(tag.slug for tag in tag_list)}
-    ))
+    result = _tags_exact_matches(prefix, request.user)
+    
+    if len(result) > 1:
+        # multiple exact matches
+        return render_to_response('catalogue/search_multiple_hits.html', 
+            {'tags':tag_list, 'prefix':prefix, 'results':((x, _get_result_link(x, tag_list), _get_result_type(x)) for x in result)},
+            context_instance=RequestContext(request))
+    
+    if not result:
+        # no exact matches
+        result = _tags_starting_with(prefix, request.user)
+    
+    if result:
+        return HttpResponseRedirect(_get_result_link(result[0], tag_list))
+    else:
+        return render_to_response('catalogue/search_no_hits.html', {'tags':tag_list, 'prefix':prefix},
+            context_instance=RequestContext(request))

 
 
 def tags_starting_with(request):
 
 
 def tags_starting_with(request):


@@ -248,12 +340,15 @@ 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)
     
     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):
 
 
 def collect_books(books):


@@ -404,7 +499,7 @@ def register(request):
 @cache.never_cache
 def logout_then_redirect(request):
     auth.logout(request)
 @cache.never_cache
 def logout_then_redirect(request):
     auth.logout(request)

-    return HttpResponseRedirect(request.GET.get('next', '/'))
+    return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))

 
 
 
 
 
 


@@ -426,4 +521,13 @@ def import_book(request):
             return HttpResponse("An error occurred: %s\n\n%s" % (exception, tb), mimetype='text/plain')
         return HttpResponse("Book imported successfully")
     else:
             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'))