logs view adds paging ability

settings.LOGS_PER_PAGE controls logs count per page

logs/templates/paging.html

@@ -0,0 +1,12 @@
+<center>
+    {% if page > 1 %}
+        <a href="{% url 'showlogspage' page|add:"-1" %}">&larr;</a>
+    {% else %}
+        &nbsp;
+    {% endif %}
+    {% if has_next_page %}
+    <a href="{% url 'showlogspage' page|add:"1" %}">&rarr;</a>
+    {% else %}
+        &nbsp;
+    {% endif %}
+</center>

logs/templates/showlogs.html

@@ -22,31 +22,33 @@
                             </div>
                         </div>
                     {% else %}
+                        {% include "paging.html" %}
                         <div class="table-responsive">
                             <table class="table table-bordered table-hover">
                                 <thead>
                                     <tr>
                                         <th>#</th>
+                                        <th>{% trans "Date" %}</th>
                                         <th>{% trans "User" %}</th>
                                         <th>{% trans "Instance" %}</th>
                                         <th>{% trans "Message" %}</th>
-                                        <th>{% trans "Date" %}</th>
                                         </tr>
                                 </thead>
                                 <tbody>
                                     {% for log in logs %}
                                         <tr>
-                                            <td>{{ forloop.counter }}</td>
+                                            <td>{{ log.id }}</td>
+                                            <td style="width:130px;">{{ log.date|date:"M d H:i:s" }}</td>
                                             <td>{{ log.user }}</a></td>
                                             <td>{{ log.instance }}</a></td>
                                             <td>{{ log.message }}</td>
-                                            <td style="width:130px;">{{ log.date|date:"M d H:i:s" }}</td>
                                         </tr>
                                     {% endfor %}
                                 </tbody>
                             </table>
                         </div>
+                        {% include "paging.html" %}
                     {% endif %}
                 </div>
             </div>
-{% endblock %}
+{% endblock %}

logs/urls.py

@@ -0,0 +1,7 @@
+from django.conf.urls import url
+from . import views
+
+urlpatterns = [
+    url(r'^$', views.showlogs, name='showlogs'),
+    url(r'^(?P<page>[0-9]+)/$', views.showlogs, name='showlogspage'),
+]

logs/views.py

@@ -2,6 +2,7 @@ from django.shortcuts import render
 from django.http import HttpResponseRedirect
 from django.core.urlresolvers import reverse
 from logs.models import Logs
+from django.conf import settings
 
 
 def addlogmsg(user, instance, message):
@@ -13,7 +14,7 @@ def addlogmsg(user, instance, message):
     add_log_msg.save()
 
 
-def showlogs(request):
+def showlogs(request, page=1):
     """
     :param request:
     :return:
@@ -25,6 +26,11 @@ def showlogs(request):
     if not request.user.is_superuser:
         return HttpResponseRedirect(reverse('index'))
 
-    logs = Logs.objects.all()
+    page = int(page)
+    limit_from = (page-1)*settings.LOGS_PER_PAGE
+    limit_to = page*settings.LOGS_PER_PAGE
+    logs = Logs.objects.all().order_by('-date')[limit_from:limit_to+1]
+    has_next_page = logs.count() > settings.LOGS_PER_PAGE
+    # TODO: remove last element from queryset, but do not affect database
 
     return render(request, 'showlogs.html', locals())