Implemented pagination for meetings and blog entries

i2p2www/helpers.py

@@ -0,0 +1,32 @@
+from math import ceil
+
+class Pagination(object):
+    def __init__(self, page, per_page, total_count):
+        self.page = page
+        self.per_page = per_page
+        self.total_count = total_count
+
+    @property
+    def pages(self):
+        return int(ceil(self.total_count / float(self.per_page)))
+
+    @property
+    def has_prev(self):
+        return self.page > 1
+
+    @property
+    def has_next(self):
+        return self.page < self.pages
+
+    def iter_pages(self, left_edge=2, left_current=2,
+                   right_current=5, right_edge=2):
+        last = 0
+        for num in xrange(1, self.pages + 1):
+            if num <= left_edge or \
+               (num > self.page - left_current - 1 and \
+                num < self.page + right_current) or \
+               num > self.pages - right_edge:
+                if last + 1 != num:
+                    yield None
+                yield num
+                last = num