phone: display previous phone calls

welco/sources/phone/models.py

@@ -66,6 +66,16 @@ class PhoneCall(models.Model):
             'channel': 'phone',
         }
 
+    def previous_calls(self):
+        return PhoneCall.objects.filter(caller=self.caller).exclude(
+                id=self.id).order_by('-start')[:5]
+
+    @property
+    def duration(self):
+        if not self.stop:
+            return 'n.a.'
+        seconds = (self.stop - self.start).seconds
+        return '%02d:%02d' % (seconds//60, seconds%60)
 
 class PhoneLine(models.Model):
     callee = models.CharField(_('Callee'), unique=True, max_length=20)

welco/sources/phone/templates/welco/phone_home.html

@@ -35,6 +35,17 @@
 <div class="phonecall active" data-source-pk="{{phonecall.id}}"
      data-active-call-url="{% url 'phone-active-call' pk=phonecall.id %}">
 <h1>{% trans 'Current Call:' %} <strong>{{phonecall.caller}}</strong></h1>
+
+{% if phonecall.previous_calls %}
+<div class="previous-calls">
+<h2>{% trans 'Previous calls from same number' %}</h2>
+<ul>
+  {% for call in phonecall.previous_calls %}
+    <li>{{ call.start }} ({{ call.duration }})</li>
+  {% endfor %}
+</ul>
+</div>
+{% endif %}
 </div>
 {% endfor %}
 </div>