Reorganized site and blog views and helpers to use LazyView

This increases the speed of the site by not requiring the site and blog code to
be imported on every request - just those that are relevant. It also splits the
code into modules which are easier to work with.

i2p2www/blog/views.py

@@ -0,0 +1,44 @@
+from flask import request, abort, render_template
+from werkzeug.contrib.atom import AtomFeed
+
+from i2p2www import BLOG_ENTRIES_PER_PAGE
+from i2p2www.blog.helpers import get_blog_entries, get_blog_feed_items, render_blog_entry
+from i2p2www.helpers import Pagination, get_for_page
+
+
+############
+# Blog views
+
+def blog_index(page):
+    all_entries = get_blog_entries()
+    entries = get_for_page(all_entries, page, BLOG_ENTRIES_PER_PAGE)
+    if not entries and page != 1:
+        abort(404)
+    pagination = Pagination(page, BLOG_ENTRIES_PER_PAGE, len(all_entries))
+    return render_template('blog/index.html', pagination=pagination, entries=entries)
+
+def blog_entry(slug):
+    # try to render that blog entry.. throws 404 if it does not exist
+    parts = render_blog_entry(slug)
+
+    if parts:
+        # now just pass to simple template file and we are done
+        return render_template('blog/entry.html', parts=parts, title=parts['title'], body=parts['fragment'], slug=slug)
+    else:
+        abort(404)
+
+def blog_rss():
+    # TODO: implement
+    pass
+
+def blog_atom():
+    # TODO: Only output beginning of each blog entry
+    feed = AtomFeed('I2P Blog', feed_url=request.url, url=request.url_root)
+    items = get_blog_feed_items(10)
+    for item in items:
+        feed.add(item['title'],
+                 item['content'],
+                 content_type='html',
+                 url=item['url'],
+                 updated=item['updated'])
+    return feed.get_response()