From f6c6ae2af328d6cabbd46120d77671c9abf20e3b Mon Sep 17 00:00:00 2001
From: Daniel Mizyrycki <mzdaniel@gmail.com>
Date: Sun, 13 Sep 2009 03:58:42 +0800
Subject: [PATCH] Add records variable in templatetags, allowing to extend the
 pagination template with the record range displayed in the page.

---
 pagination/templatetags/pagination_tags.py |  6 ++++
 pagination/tests.py                        | 34 ++++++++++++++++++++--
 2 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/pagination/templatetags/pagination_tags.py b/pagination/templatetags/pagination_tags.py
index 3733434..fa87b37 100644
--- a/pagination/templatetags/pagination_tags.py
+++ b/pagination/templatetags/pagination_tags.py
@@ -133,6 +133,11 @@ def paginate(context, window=DEFAULT_WINDOW):
         paginator = context['paginator']
         page_obj = context['page_obj']
         page_range = paginator.page_range
+        # Calculate the record range in the current page for display.
+        records = {'first': 1 + (page_obj.number - 1) * paginator.per_page}
+        records['last'] = records['first'] + paginator.per_page - 1
+        if records['last'] + paginator.orphans >= paginator.count:
+            records['last'] = paginator.count
         # First and last are simply the first *n* pages and the last *n* pages,
         # where *n* is the current window size.
         first = set(page_range[:window])
@@ -201,6 +206,7 @@ def paginate(context, window=DEFAULT_WINDOW):
         to_return = {
             'MEDIA_URL': settings.MEDIA_URL,
             'pages': pages,
+            'records': records,
             'page_obj': page_obj,
             'paginator': paginator,
             'is_paginated': paginator.count > paginator.per_page,
diff --git a/pagination/tests.py b/pagination/tests.py
index a55ef49..31b3301 100644
--- a/pagination/tests.py
+++ b/pagination/tests.py
@@ -4,8 +4,22 @@
 >>> from django.template import Template, Context
 
 >>> p = Paginator(range(15), 2)
->>> paginate({'paginator': p, 'page_obj': p.page(1)})['pages']
+>>> pg = paginate({'paginator': p, 'page_obj': p.page(1)})
+>>> pg['pages']
+[1, 2, 3, 4, 5, 6, 7, 8]
+>>> pg['records']['first']
+1
+>>> pg['records']['last']
+2
+
+>>> p = Paginator(range(15), 2)
+>>> pg = paginate({'paginator': p, 'page_obj': p.page(8)})
+>>> pg['pages']
 [1, 2, 3, 4, 5, 6, 7, 8]
+>>> pg['records']['first']
+15
+>>> pg['records']['last']
+15
 
 >>> p = Paginator(range(17), 2)
 >>> paginate({'paginator': p, 'page_obj': p.page(1)})['pages']
@@ -25,8 +39,22 @@
 [1, 2]
 
 >>> p = Paginator(range(21), 2, 1)
->>> paginate({'paginator': p, 'page_obj': p.page(1)})['pages']
+>>> pg = paginate({'paginator': p, 'page_obj': p.page(1)})
+>>> pg['pages']
 [1, 2, 3, 4, None, 7, 8, 9, 10]
+>>> pg['records']['first']
+1
+>>> pg['records']['last']
+2
+
+>>> p = Paginator(range(21), 2, 1)
+>>> pg = paginate({'paginator': p, 'page_obj': p.page(10)})
+>>> pg['pages']
+[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
+>>> pg['records']['first']
+19
+>>> pg['records']['last']
+21
 
 >>> t = Template("{% load pagination_tags %}{% autopaginate var 2 %}{% paginate %}")
 
@@ -127,4 +155,4 @@ True
 >>> request = WSGIRequest({'REQUEST_METHOD': 'POST', 'CONTENT_TYPE': 'multipart', 'wsgi.input': StringIO()})
 >>> middleware.process_request(request)
 >>> request.upload_handlers.append('asdf')
-"""
\ No newline at end of file
+"""
-- 
2.20.1