Merge lp:~dylanmccall/harvest/rss-feeds into lp:harvest

[Dylan McCall]

This should cover what we were looking for in bug #247647. It's at least a start on RSS feeds for Harvest :)

Provides two feeds: one for all opportunities in a single package and one for the newest opportunities (arbitrarily limited to 25). Both feeds are linked in HTML metadata and the package-specific one is linked to beside the permalink button.

[Daniel Holbach (dholbach)]

Great work! Thanks a lot!

review: Approve

=== modified file 'harvest/media/css/style.css'
--- harvest/media/css/style.css	2010-10-12 02:55:53 +0000
+++ harvest/media/css/style.css	2011-05-02 04:04:27 +0000
@@ -437,6 +437,9 @@
 	text-align:right;
 	text-transform:lowercase;
 }
+.sourcepackage-details > .extra > .actions > a {
+	margin:0px 0.25em;
+}
 
 
 li.sourcepackage > .sourcepackage-details > .opportunity-list {

=== added file 'harvest/opportunities/feeds.py'
--- harvest/opportunities/feeds.py	1970-01-01 00:00:00 +0000
+++ harvest/opportunities/feeds.py	2011-05-02 04:04:27 +0000
@@ -0,0 +1,61 @@
+from django.contrib.syndication.views import Feed
+from django.core.urlresolvers import reverse
+from django.shortcuts import get_object_or_404
+from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import string_concat
+
+import models
+from wrappers import get_valid_opportunities
+
+class _OpportunitiesFeed(Feed):
+	def item_title(self, opp):
+		return _("%s: %s") % (opp.sourcepackage.name, opp.description)
+	
+	def item_description(self, opp):
+		#this is equivalent to the template opportunities/include/opportunity.html.
+		summary_str = ""
+		if len(opp.summary) > 0:
+			#join the strings so they are translated at the right time (not now)
+			summary_str = opp.summary[0]
+			for s in opp.summary[1:]:
+				summary_str = string_concat(summary_str, _(", "), s)
+		return summary_str
+	
+	def item_link(self, opp):
+		return opp.url
+	
+	def item_guid(self, opp):
+		return opp.url
+
+class NewestOpportunitiesFeed(_OpportunitiesFeed):
+	def title(self):
+		return _("Newest opportunities in Harvest")
+	
+	def link(self):
+		return reverse('filter')
+	
+	def items(self):
+		valid_opps = get_valid_opportunities(models.Opportunity.objects.order_by('-last_updated'))[:25]
+		if (valid_opps):
+			return valid_opps
+		else:
+			return []
+
+class SinglePackageFeed(_OpportunitiesFeed):
+	def get_object(self, request, package_name):
+		return get_object_or_404(models.SourcePackage, name=package_name)
+	
+	def title(self, pkg): 
+		return _("Opportunities for %s in Harvest") % pkg.name
+	
+	def link(self, pkg):
+		return reverse('single_package', args=[pkg.name])
+	
+	def items(self, pkg):
+		return get_valid_opportunities(pkg.opportunity_set.order_by('-last_updated'))
+	
+	def item_title(self, opp):
+		return opp.description
+	
+	def item_guid(self, opp):
+		return opp.url

=== modified file 'harvest/opportunities/urls.py'
--- harvest/opportunities/urls.py	2011-01-14 21:32:09 +0000
+++ harvest/opportunities/urls.py	2011-05-02 04:04:27 +0000
@@ -1,5 +1,7 @@
 from django.conf.urls.defaults import *
 
+import feeds
+
 urlpatterns = patterns('',
     url(r'^$',
         'opportunities.views.filter',
@@ -36,4 +38,12 @@
     
     url(r'^xhr/opportunity/(?P<opportunity_id>[\d]+)/edit/$',
         'opportunities.views.xhr_opportunity_edit'),
+    
+    url(r'^rss/newest25/$',
+        feeds.NewestOpportunitiesFeed(),
+        name='rss_newest_opportunities'),
+    
+    url(r'^rss/package/(?P<package_name>.+)/$',
+        feeds.SinglePackageFeed(),
+        name='rss_single_package'),
 )

=== modified file 'harvest/templates/opportunities/filter.html'
--- harvest/templates/opportunities/filter.html	2010-08-06 20:27:49 +0000
+++ harvest/templates/opportunities/filter.html	2011-05-02 04:04:27 +0000
@@ -1,6 +1,10 @@
 {% extends "base.html" %}
 {% load i18n %}
 
+{% block extrahead %}
+<link rel="alternate" type="application/rss+xml" title="{% blocktrans %}25 newest opportunities{% endblocktrans %}" href="{% url rss_newest_opportunities %}" />
+{% endblock %}
+
 {% block title %}{{ block.super }}{% endblock %}
 
 {% block content %}

=== modified file 'harvest/templates/opportunities/include/package_details.html'
--- harvest/templates/opportunities/include/package_details.html	2010-08-11 23:36:17 +0000
+++ harvest/templates/opportunities/include/package_details.html	2011-05-02 04:04:27 +0000
@@ -20,6 +20,7 @@
 <div class="extra">
 	<div class="actions">
 		<a href="{% url single_package package.real.name %}" target="_blank">{% trans "Permalink" %}</a>
+		<a href="{% url rss_single_package package.real.name %}" target="_blank">{% trans "RSS" %}</a>
 	</div>
 	{% with package.get_hidden_opportunities.count as hidden_count %}
 	{% ifnotequal hidden_count 0 %}

=== modified file 'harvest/templates/opportunities/single_package.html'
--- harvest/templates/opportunities/single_package.html	2010-08-06 03:34:17 +0000
+++ harvest/templates/opportunities/single_package.html	2011-05-02 04:04:27 +0000
@@ -1,6 +1,10 @@
 {% extends "one_column.html" %}
 {% load i18n %}
 
+{% block extrahead %}
+<link rel="alternate" type="application/rss+xml" title="{% blocktrans with package.real.name as name %}Opportunities for {{name}}{% endblocktrans %}" href="{% url rss_single_package package.real.name %}" />
+{% endblock %}
+
 {% block title %}{{ block.super }}: {{ package.real.name }}{% endblock %}
 
 {% block pagetitle %}{{ package.real.name }}{% endblock %}