Merge pull request #44 from udacity/merge_small_prs

[osqa.git] / forum / sitemap.py

diff --git a/forum/sitemap.py b/forum/sitemap.py
index 27528a0a16dd4fc1b65a4b2503dd108c44fa1bec..0bf8538ce49b41c6f840d2325d75924f0c9fc0eb 100644 (file)
--- a/forum/sitemap.py
+++ b/forum/sitemap.py
@@ -1,12 +1,84 @@
+import re
+
 from django.contrib.sitemaps import Sitemap
 from forum.models import Question
+from forum.settings import QUESTIONS_SITEMAP_LIMIT, QUESTIONS_SITEMAP_CHANGEFREQ
 from django.conf import settings
+from django.http import HttpResponse, Http404
+from django.template import loader
+from django.core import urlresolvers
+from django.utils.encoding import smart_str
+from django.core.paginator import EmptyPage, PageNotAnInteger
+
+def index(request, sitemaps):
+    sites = []
+    for section, site in sitemaps.items():
+        if callable(site):
+            pages = site().paginator.num_pages
+        else:
+            pages = site.paginator.num_pages
+        sitemap_url = urlresolvers.reverse('sitemap_section_index', kwargs={'section': section})
+
+        # Replace double forward slashes with single ones
+        final_url = '%s%s' % (settings.APP_URL, sitemap_url)
+        final_url = re.sub("/+", "/", final_url)
+        final_url = final_url.replace('http:/', 'http://')
+        final_url = final_url.replace('https:/', 'https://')
+
+        sites.append(final_url)
+
+    xml = loader.render_to_string('sitemap_index.xml', {'sitemaps': sites})
+    return HttpResponse(xml, mimetype='application/xml')
+
+def sitemap_section_index(request, section, sitemaps):
+    try:
+        sitemap = sitemaps[section]()
+    except KeyError:
+        raise Http404("Sitemap doesn't exist")
+
+    paginator = sitemap.paginator
+
+    locations = []
+
+    for page in paginator.page_range:
+        location = urlresolvers.reverse('sitemap_section_page', kwargs={ 'page' : page, 'section' : section })
+        location = '%s%s' % (settings.APP_URL, location)
+        location = re.sub("/+", "/", location)
+        location = location.replace('http:/', 'http://')
+        location = location.replace('https:/', 'https://')
+        locations.append(location)
+
+    xml = loader.render_to_string('sitemap_section_index.xml', { 'locations' : locations, })
+    return HttpResponse(xml, mimetype='application/xml')
+
+def sitemap(request, sitemaps, section=None, page=1):
+    maps, urls = [], []
+    if section is not None:
+        if section not in sitemaps:
+            raise Http404("No sitemap available for section: %r" % section)
+        maps.append(sitemaps[section])
+    else:
+        maps = sitemaps.values()
+    
+    for site in maps:
+        try:
+            if callable(site):
+                urls.extend(site().get_urls(page=page))
+            else:
+                urls.extend(site.get_urls(page=page))
+        except EmptyPage:
+            raise Http404("Page %s empty" % page)
+        except PageNotAnInteger:
+            raise Http404("No page '%s'" % page)
+    xml = smart_str(loader.render_to_string('sitemap.xml', {'urlset': urls}))
+    return HttpResponse(xml, mimetype='application/xml')
 
-class QuestionsSitemap(Sitemap):
-    changefreq = 'daily'
+class OsqaSitemap(Sitemap):
+    limit = QUESTIONS_SITEMAP_LIMIT
+    changefreq = QUESTIONS_SITEMAP_CHANGEFREQ
     priority = 0.5
     def items(self):
-        return Question.objects.filter_state(deleted=False)
+        return Question.objects.filter_state(deleted=False).order_by('id')
 
     def lastmod(self, obj):
         return obj.last_activity_at
@@ -34,4 +106,4 @@ class QuestionsSitemap(Sitemap):
                 'priority':   self.__get('priority', item, None)
             }
             urls.append(url_info)
-        return urls    
\ No newline at end of file
+        return urls