add function 'get_all_feeds' to FeedList, FeedCategory

libearth/feedlist.py

@@ -174,6 +174,16 @@ def __init__(self, title, type=None, text=None, category=None,
         self.children = []
         self.urls = []  # to avoid duplication of feeds for the same category
 
+    def get_all_feeds(self):
+        res = []
+        for obj in self.children:
+            if isinstance(obj, FeedCategory):
+                res += obj.get_all_feeds()
+            else:
+                res.append(obj)
+
+        return list(set(res))
+
     def insert(self, index, value):
         if not isinstance(value, FeedTree):
             raise TypeError('expected an instance of {0.__module__}.'
@@ -473,6 +483,9 @@ def make_feed(self, type, title, xml_url, html_url=None, text=None,
 
         return feed
 
+    def get_all_feeds(self):
+        return self.feedlist.get_all_feeds()
+
     def convert_from_outline(self, outline_obj):
         if outline_obj.children:
             title = outline_obj.title or outline_obj.text

tests/feedlist_test.py

@@ -224,3 +224,30 @@ def test_feedCategory():
 
     #Or valid rfc822 string.
     feedCategory = FeedCategory('title', 'Mon, 23 Sep 2013 11:49:28 +0900')
+
+
+def test_get_all_feeds():
+    feed1 = Feed('rss2', 'feed1', 'http://xmlurl1.com/rss')
+    feed2 = Feed('rss2', 'feed2', 'http://xmlurl2.com/rss')
+    feed3 = Feed('rss2', 'feed3', 'http://xmlurl3.com/rss')
+
+    cate1 = FeedCategory('category1')
+    cate2 = FeedCategory('category2')
+
+    #feeds can be placed on multi category
+    cate1.append(feed1)
+    cate1.append(feed2)
+    cate2.append(feed2)
+    cate2.append(feed3)
+
+    feedlist = FeedList()
+    feedlist.append(cate1)
+    feedlist.append(cate2)
+    feedlist.append(feed3)
+
+    all_feeds = feedlist.get_all_feeds()
+
+    assert feed1 in all_feeds
+    assert feed2 in all_feeds
+    assert feed3 in all_feeds
+    assert len(all_feeds) == 3