euscanwww: Created a feed for scan world with packages in GET

Note: Check if passing parameters in GET is good, there's the risk of
looong urls

Signed-off-by: volpino <fox91@anche.no>

TODO

@@ -52,7 +52,6 @@ euscanwww
 ---------
 
 - Add an /about/config page that describe the current config (overlays, stuff in make.conf, euscan default settings, etc..)
-- Create a rss for "scan world" + packages in GET
 - Always keep in db all found versions (when using an API only?). But don't display them if older than current packaged version, except maybe in the "upstream_version" column.
 
 ### packages

euscanwww/djeuscan/feeds.py

@@ -229,9 +229,32 @@ class UserFeed(BaseFeed):
         }
 
     def _items(self, data):
-        user, options = data["user"], data["options"]
+        user = data["user"]
 
         profile = get_profile(user)
         vlogs = get_account_versionlogs(profile)
 
         return vlogs, 100
+
+
+class WorldScanFeed(BaseFeed):
+    link = "/"
+
+    def get_object(self, request):
+        return {
+            "options": request.GET,
+        }
+
+    def _items(self, data):
+        packages = []
+        for pkg_name in data["options"].getlist("package", []):
+            if "/" in pkg_name:
+                cat, name = pkg_name.split("/", 1)
+                pkg = Package.objects.filter(name=name, category=cat)
+            else:
+                pkg = Package.objects.filter(name=pkg_name)
+            packages.extend(pkg)
+
+        vlogs = VersionLog.objects.filter(package__in=packages)
+
+        return vlogs, 100

euscanwww/djeuscan/templates/euscan/world_scan.html

@@ -7,6 +7,18 @@
 {{ block.super }} - World Scan
 {% endblock %}
 
+{% block menu_feed %}
+{{ block.super }}
+<li>
+  <img src="{{ STATIC_URL }}/img/feed.png" alt="feed" />
+  <a title="World scan Feed"
+     href="{% url "world_scan_feed" %}?package={{ packages|join:"&package=" }}">
+    World scan feed
+  </a>
+</li>
+{% endblock %}
+
+
 {% block content %}
 <h2>
   World scan:

euscanwww/djeuscan/urls.py

@@ -8,7 +8,7 @@ from djcelery.views import apply as apply_task
 from djeuscan.views import registered_tasks
 
 from djeuscan.feeds import PackageFeed, CategoryFeed, HerdFeed, \
-    MaintainerFeed, GlobalFeed, UserFeed
+    MaintainerFeed, GlobalFeed, UserFeed, WorldScanFeed
 
 
 admin_required = user_passes_test(lambda u: u.is_superuser)
@@ -117,6 +117,7 @@ urlpatterns = patterns('djeuscan.views',
     url(r'^statistics/charts/(?P<chart>[\w\-]+).png$', 'chart', name="chart"),
     url(r'^world/$', 'world', name="world"),
     url(r'^world/scan/$', 'world_scan', name="world_scan"),
+    url(r'^world/scan/feed$', WorldScanFeed(), name="world_scan_feed"),
     url(r'^world/favourite/$', 'favourite_world', name="favourite_world"),
     url(r'^world/unfavourite/$', 'unfavourite_world',
         name="unfavourite_world"),