From 2ccd83627db9c376ad285c0bcea697cbb21b0e09 Mon Sep 17 00:00:00 2001
From: Michael Elkins <melkins@tislabs.com>
Date: Thu, 21 Feb 2013 18:37:01 +0000
Subject: add support for breaking the route view into multiple pages

svn path=/trunk/; revision=5053
---
 rpkid/rpki/gui/app/templates/app/routes_view.html  |  4 +++
 rpkid/rpki/gui/app/templatetags/bootstrap_pager.py | 39 ++++++++++++++++++++++
 rpkid/rpki/gui/app/views.py                        |  8 ++++-
 3 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 rpkid/rpki/gui/app/templatetags/bootstrap_pager.py

diff --git a/rpkid/rpki/gui/app/templates/app/routes_view.html b/rpkid/rpki/gui/app/templates/app/routes_view.html
index a1406398..f9b0ffad 100644
--- a/rpkid/rpki/gui/app/templates/app/routes_view.html
+++ b/rpkid/rpki/gui/app/templates/app/routes_view.html
@@ -1,5 +1,7 @@
 {% extends "app/app_base.html" %}
 
+{% load bootstrap_pager %}
+
 {% block sidebar_extra %}
 <p>
 BGP data updated<br>
@@ -38,4 +40,6 @@ This view shows currently advertised routes for the prefixes listed in resource
   {% endfor %}
 </table>
 
+{% bootstrap_pager request routes %}
+
 {% endblock %}
diff --git a/rpkid/rpki/gui/app/templatetags/bootstrap_pager.py b/rpkid/rpki/gui/app/templatetags/bootstrap_pager.py
new file mode 100644
index 00000000..be7d7ca3
--- /dev/null
+++ b/rpkid/rpki/gui/app/templatetags/bootstrap_pager.py
@@ -0,0 +1,39 @@
+from django import template
+
+register = template.Library()
+
+
+class BootstrapPagerNode(template.Node):
+    def __init__(self, request, pager_object):
+        self.request = template.Variable(request)
+        self.pager_object = template.Variable(pager_object)
+
+    def render(self, context):
+        request = self.request.resolve(context)
+        pager_object = self.pager_object.resolve(context)
+        r = ['<div class="pagination"><ul>']
+        if pager_object.number == 1:
+            r.append('<li class="disabled"><a>&laquo;</a></li>')
+        else:
+            r.append('<li><a href="%s?page=%d">&laquo;</a></li>' % (request.path, pager_object.number - 1))
+
+        for i in pager_object.paginator.page_range:
+            r.append('<li %s><a href="%s?page=%d">%d</a></li>' % ('' if i != pager_object.number else 'class="active"', request.path, i, i))
+
+
+        if pager_object.number < pager_object.paginator.num_pages:
+            r.append('<li><a href="%s?page=%d">&raquo;</a></li>' % (request.path, pager_object.number + 1))
+        else:
+            r.append('<li class="disabled"><a>&raquo;</a></li>')
+
+        r.append('</ul></div>')
+        return '\n'.join(r)
+
+
+@register.tag
+def bootstrap_pager(parser, token):
+    try:
+        tag_name, request, pager_object = token.split_contents()
+    except ValueError:
+        raise template.TemplateSyntaxError("%r tag requires two arguments" % token.contents.split()[0])
+    return BootstrapPagerNode(request, pager_object)
diff --git a/rpkid/rpki/gui/app/views.py b/rpkid/rpki/gui/app/views.py
index 08e43605..de4ea488 100644
--- a/rpkid/rpki/gui/app/views.py
+++ b/rpkid/rpki/gui/app/views.py
@@ -32,6 +32,7 @@ from django import http
 from django.core.urlresolvers import reverse
 from django.contrib.auth.models import User
 from django.views.generic import DetailView
+from django.core.paginator import Paginator
 
 from rpki.irdb import Zookeeper, ChildASN, ChildNet
 from rpki.gui.app import models, forms, glue, range_list
@@ -716,6 +717,8 @@ def route_view(request):
     """
     conf = request.session['handle']
     log = request.META['wsgi.errors']
+    count = request.GET.get('count', 25)
+    page = request.GET.get('page', 1)
 
     routes = []
     for p in models.ResourceRangeAddressV4.objects.filter(cert__conf=conf):
@@ -727,9 +730,12 @@ def route_view(request):
         print >>log, 'querying for routes matching %s' % r
         routes.extend([validate_route(*x) for x in roa_match(r)])
 
+    paginator = Paginator(routes, count)
+    content = paginator.page(page)
+
     ts = dict((attr['name'], attr['ts']) for attr in models.Timestamp.objects.values())
     return render(request, 'app/routes_view.html',
-                  {'routes': routes, 'timestamp': ts})
+                  {'routes': content, 'timestamp': ts})
 
 
 def route_detail(request, pk):
-- 
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