Adds pagination, as per Issue #82.

Thanks to Christian Klein for the patch.

templates/helpdesk/ticket_list.html

@@ -131,7 +131,7 @@ $(document).ready(function() {
 <table width='100%'>
 <tr class='row_tablehead'><td colspan='8'>{% trans "Tickets" %}</td></tr>
 <tr class='row_columnheads'><th>#</th><th>&nbsp;</th><th>{% trans "Pr" %}</th><th>{% trans "Title" %}</th><th>{% trans "Queue" %}</th><th>{% trans "Status" %}</th><th>{% trans "Created" %}</th><th>{% trans "Owner" %}</th></tr>
-{% if tickets %}{% for ticket in tickets %}
+{% if tickets %}{% for ticket in tickets.object_list %}
 <tr class='row_{% cycle odd,even %} row_hover'>
 <th><a href='{{ ticket.get_absolute_url }}'>{{ ticket.ticket }}</a></th>
 <td><input type='checkbox' name='ticket_id' value='{{ ticket.id }}' class='ticket_multi_select' /></td>
@@ -146,6 +146,21 @@ $(document).ready(function() {
 <tr class='row_odd'><td colspan='5'>{% trans "No Tickets Match Your Selection" %}</td></tr>
 {% endif %}
 </table>
+<div class="pagination">
+    <span class="step-links">
+        {% if tickets.has_previous %}
+            <a href="?{{ query_string }}{% if query_string %}&{% else %}?{% endif %}page={{ tickets.previous_page_number }}">{% trans "Previous" %}</a>
+        {% endif %}
+
+        <span class="current">
+            {% blocktrans with tickets.number as ticket_num and tickets.paginator.num_pages as num_pages %}Page {{ ticket_num }} of {{ num_pages }}.{% endblocktrans %}
+        </span>
+
+        {% if tickets.has_next %}
+            <a href="?{{ query_string }}{% if query_string %}&{% else %}?{% endif %}page={{ tickets.next_page_number }}">{% trans "Next" %}</a>
+        {% endif %}
+    </span>
+</div>
 
 <p><label>Select: </label> <a href='#select_all' id='select_all'>All</a> <a href='#select_none' id='select_none'>None</a> <a href='#select_inverse' id='select_inverse'>Inverse</a></p>
 

views/staff.py

@@ -14,6 +14,7 @@ from django.contrib.auth.models import User
 from django.contrib.auth.decorators import login_required, user_passes_test
 from django.core.files.base import ContentFile
 from django.core.urlresolvers import reverse
+from django.core.paginator import Paginator
 from django.db import connection
 from django.db.models import Q
 from django.http import HttpResponseRedirect, Http404, HttpResponse
@@ -493,7 +494,17 @@ def ticket_list(request):
         sortreverse = request.GET.get('sortreverse', None)
         query_params['sortreverse'] = sortreverse
 
-    tickets = apply_query(Ticket.objects.select_related(), query_params)
+    ticket_qs = apply_query(Ticket.objects.select_related(), query_params)
+    paginator = Paginator(ticket_qs, 20)
+    try:
+        page = int(request.GET.get('page', '1'))
+    except ValueError:
+         page = 1
+
+    try:
+        tickets = paginator.page(page)
+    except (EmptyPage, InvalidPage):
+        tickets = paginator.page(paginator.num_pages)
 
     search_message = ''
     if context.has_key('query') and settings.DATABASE_ENGINE.startswith('sqlite'):
@@ -506,9 +517,15 @@ def ticket_list(request):
 
     user_saved_queries = SavedSearch.objects.filter(Q(user=request.user) | Q(shared__exact=True))
 
+    query_string = []
+    for get_key, get_value in request.GET.iteritems():
+        if get_key != "page":
+            query_string.append("%s=%s" % (get_key, get_value))
+
     return render_to_response('helpdesk/ticket_list.html',
         RequestContext(request, dict(
             context,
+            query_string="&".join(query_string),
             tickets=tickets,
             user_choices=User.objects.filter(is_active=True),
             queue_choices=Queue.objects.all(),