Сделал фильтрацию по колонкам

devapp/templates/devapp/devices.html

@@ -14,9 +14,24 @@
         <table class="table table-striped table-bordered">
             <thead>
             <tr>
-                <th>{% trans 'Ip address' %}</th>
-                <th>{% trans 'Comment' %}</th>
-                <th width="250">{% trans 'Device type' %}</th>
+                <th>
+                    <a href="{% url 'devapp:devs' %}?order_by=ip_address&dir={{ dir|default:"down" }}">
+                        {% trans 'Ip address' %}
+                    </a>
+                    {% if order_by == 'ip_address' %}<span class="glyphicon glyphicon-filter"></span>{% endif %}
+                </th>
+                <th>
+                    <a href="{% url 'devapp:devs' %}?order_by=comment&dir={{ dir|default:"down" }}">
+                        {% trans 'Comment' %}
+                    </a>
+                    {% if order_by == 'comment' %}<span class="glyphicon glyphicon-filter"></span>{% endif %}
+                </th>
+                <th width="250">
+                    <a href="{% url 'devapp:devs' %}?order_by=devtype&dir={{ dir|default:"down" }}">
+                        {% trans 'Device type' %}
+                    </a>
+                    {% if order_by == 'devtype' %}<span class="glyphicon glyphicon-filter"></span>{% endif %}
+                </th>
                 <th width="100">Do</th>
             </tr>
             </thead>

devapp/views.py

@@ -7,7 +7,7 @@ from django.utils.translation import ugettext as _
 from easysnmp import EasySNMPTimeoutError
 
 from .models import Device
-from mydefs import pag_mn, res_success, res_error, only_admins, ping
+from mydefs import pag_mn, res_success, res_error, only_admins, ping, order_helper
 from .forms import DeviceForm
 
 
@@ -15,10 +15,20 @@ from .forms import DeviceForm
 @only_admins
 def devices(request):
     devs = Device.objects.all()
+
+    # фильтр
+    dr, field = order_helper(request)
+    if field:
+        devs = devs.order_by(field)
+    print(type(request.GET), request.GET)
+    import django.http.request
+
     devs = pag_mn(request, devs)
 
     return render(request, 'devapp/devices.html', {
-        'devices': devs
+        'devices': devs,
+        'dir': dr,
+        'order_by': request.GET.get('order_by')
     })