Shelf sharing (#301)

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

diff --git a/apps/catalogue/views.py b/apps/catalogue/views.py
index 6de5a26..cf1461f 100644 (file)
--- a/apps/catalogue/views.py
+++ b/apps/catalogue/views.py
@@ -7,6 +7,7 @@ import zipfile
 import sys
 import pprint
 import traceback
 import sys
 import pprint
 import traceback

+import re

 
 from django.conf import settings
 from django.template import RequestContext
 
 from django.conf import settings
 from django.template import RequestContext


@@ -22,7 +23,9 @@ 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 django.views.decorators import cache

+from django.utils.translation import ugettext as _

 
 from catalogue import models
 from catalogue import forms
 
 from catalogue import models
 from catalogue import forms


@@ -170,16 +173,24 @@ 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):
 def _word_starts_with(name, prefix):

-    """returns a Q object gettings models having `name` contain a word
+    """returns a Q object getting models having `name` contain a word

     starting with `prefix`
     """
     kwargs = {}
     if settings.DATABASE_ENGINE in ('mysql', 'postgresql_psycopg2', 'postgresql'):
     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)
-        
+        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
         # we could use a [[:<:]] (word start), 
         # but we want both `xy` and `(xy` to catch `(xyz)`
         kwargs['%s__iregex' % name] = u"(^|[^[:alpha:]])%s" % prefix


@@ -190,6 +201,19 @@ def _word_starts_with(name, prefix):
     return Q(**kwargs)
 
 
     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):
     book_stubs = models.BookStub.objects.filter(_word_starts_with('title', prefix))
     books = models.Book.objects.filter(_word_starts_with('title', prefix))
 def _tags_starting_with(prefix, user):
     book_stubs = models.BookStub.objects.filter(_word_starts_with('title', prefix))
     books = models.Book.objects.filter(_word_starts_with('title', prefix))


@@ -203,31 +227,54 @@ def _tags_starting_with(prefix, user):
     return list(books) + list(tags) + list(book_stubs)
         
 
     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) 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)}
-            ))
+    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:
     else:

-        return render_to_response('catalogue/search_no_hits.html', {'query':prefix, 'tags':tag_list},
+        return render_to_response('catalogue/search_no_hits.html', {'tags':tag_list, 'prefix':prefix},

             context_instance=RequestContext(request))
 
 
             context_instance=RequestContext(request))
 
 


@@ -258,7 +305,7 @@ def book_sets(request, slug):
     book_sets = book.tags.filter(category='set', user=request.user)
     
     if not request.user.is_authenticated():
     book_sets = book.tags.filter(category='set', user=request.user)
     
     if not request.user.is_authenticated():

-        return HttpResponse('<p>Aby zarządzać swoimi półkami, musisz się zalogować.</p>')
+        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 request.method == 'POST':
         form = forms.ObjectSetsForm(book, request.user, request.POST)


@@ -276,7 +323,7 @@ def book_sets(request, slug):
             
             book.tags = new_shelves + list(book.tags.filter(~Q(category='set') | ~Q(user=request.user)))
             if request.is_ajax():
             
             book.tags = new_shelves + list(book.tags.filter(~Q(category='set') | ~Q(user=request.user)))
             if request.is_ajax():

-                return HttpResponse('<p>Półki zostały zapisane.</p>')
+                return HttpResponse(_('<p>Shelves were sucessfully saved.</p>'))

             else:
                 return HttpResponseRedirect('/')
     else:
             else:
                 return HttpResponseRedirect('/')
     else:


@@ -294,12 +341,15 @@ 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(_('Book was successfully removed from the shelf'))
+    else:
+        return HttpResponse(_('This book is not on the shelf'))

 
 
 def collect_books(books):
 
 
 def collect_books(books):


@@ -332,7 +382,7 @@ def download_shelf(request, slug):
         formats = ['pdf', 'odt', 'txt', 'mp3', 'ogg']
     
     # Create a ZIP archive
         formats = ['pdf', 'odt', 'txt', 'mp3', 'ogg']
     
     # Create a ZIP archive

-    temp = temp = tempfile.TemporaryFile()
+    temp = tempfile.TemporaryFile()

     archive = zipfile.ZipFile(temp, 'w')
     
     for book in collect_books(models.Book.tagged.with_all(shelf)):
     archive = zipfile.ZipFile(temp, 'w')
     
     for book in collect_books(models.Book.tagged.with_all(shelf)):


@@ -395,7 +445,7 @@ def new_set(request):
         new_set = new_set_form.save(request.user)
 
         if request.is_ajax():
         new_set = new_set_form.save(request.user)
 
         if request.is_ajax():

-            return HttpResponse(u'<p>Półka <strong>%s</strong> została utworzona</p>' % new_set)
+            return HttpResponse(_('<p>Shelf <strong>%s</strong> was successfully created</p>') % new_set)

         else:
             return HttpResponseRedirect('/')
 
         else:
             return HttpResponseRedirect('/')
 


@@ -410,7 +460,7 @@ def delete_shelf(request, slug):
     user_set.delete()
 
     if request.is_ajax():
     user_set.delete()
 
     if request.is_ajax():

-        return HttpResponse(u'<p>Półka <strong>%s</strong> została usunięta</p>' % user_set.name)
+        return HttpResponse(_('<p>Shelf <strong>%s</strong> was successfully removed</p>') % user_set.name)

     else:
         return HttpResponseRedirect('/')
 
     else:
         return HttpResponseRedirect('/')
 


@@ -450,7 +500,7 @@ 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='/?='))

 
 
 
 
 
 


@@ -469,10 +519,11 @@ 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]))

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

-        return HttpResponse("Error importing file: %r" % book_import_form.errors)
+        return HttpResponse(_("Error importing file: %r") % book_import_form.errors)

 
 
 
 
 
 


@@ -481,4 +532,4 @@ def clock(request):
     in a format suitable for Date.parse()
     """
     from datetime import datetime
     in a format suitable for Date.parse()
     """
     from datetime import datetime

-    return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S'))
+    return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S'))
\ No newline at end of file