Handle observations with deleted stations

network/api/serializers.py

@@ -41,13 +41,22 @@ class ObservationSerializer(serializers.ModelSerializer):
         return obj.satellite.norad_cat_id
 
     def get_station_name(self, obj):
-        return obj.ground_station.name
+        try:
+            return obj.ground_station.name
+        except:
+            return None
 
     def get_station_lat(self, obj):
-        return obj.ground_station.lat
+        try:
+            return obj.ground_station.lat
+        except:
+            return None
 
     def get_station_lng(self, obj):
-        return obj.ground_station.lng
+        try:
+            return obj.ground_station.lng
+        except:
+            return None
 
 
 class JobSerializer(serializers.ModelSerializer):

network/base/views.py

@@ -428,9 +428,13 @@ def observation_view(request, id):
     if request.user.is_authenticated():
         if observation.author == request.user or request.user.is_staff:
             is_vetting_user = True
-        if Station.objects.filter(owner=request.user). \
-           filter(id=observation.ground_station.id).count():
-            is_vetting_user = True
+        # Hadle exception for deleted station
+        try:
+            if Station.objects.filter(owner=request.user). \
+               filter(id=observation.ground_station.id).count():
+                is_vetting_user = True
+        except:
+            pass
 
     # This context flag will determine if a delete button appears for the observation.
     # That includes observer, superusers and people with certain permission.

network/templates/base/home.html

@@ -192,9 +192,11 @@
                         <span class="datetime-time">{{ observation.end|date:"H:i:s" }}</span>
                       </td>
                       <td>
-                        <a href="{% url 'base:station_view' id=observation.ground_station.id %}">
-                          {{ observation.ground_station }}
-                        </a>
+                        {% if observation.ground_station %}
+                          <a href="{% url 'base:station_view' id=observation.ground_station.id %}">
+                            {{ observation.ground_station }}
+                          </a>
+                        {% endif %}
                       </td>
                     </tr>
                   {% endfor %}

network/templates/base/observation_view.html

@@ -65,9 +65,11 @@
       <div class="front-line">
         <span class="label label-default">Station</span>
         <span class="front-data">
-          <a href="{% url 'base:station_view' id=observation.ground_station.id %}">
-            {{ observation.ground_station.name }}
-          </a>
+          {% if observation.ground_station %}
+            <a href="{% url 'base:station_view' id=observation.ground_station.id %}">
+              {{ observation.ground_station.name }}
+            </a>
+          {% endif %}
         </span>
       </div>
       <div class="front-line">

network/templates/base/observations.html

@@ -101,9 +101,11 @@
                 </a>
               </td>
               <td>
-                <a href="{% url 'base:station_view' id=observation.ground_station.id %}">
-                  {{ observation.ground_station }}
-                </a>
+                {% if observation.ground_station %}
+                  <a href="{% url 'base:station_view' id=observation.ground_station.id %}">
+                    {{ observation.ground_station }}
+                  </a>
+                {% endif %}
               </td>
             </tr>
           {% endfor %}

network/templates/users/user_detail.html

@@ -146,9 +146,11 @@
                   <span class="datetime-time">{{ observation.end|date:"H:i:s" }}</span>
                 </td>
                 <td>
-                  <a href="{% url 'base:station_view' id=observation.ground_station.id %}">
-                    {{ observation.ground_station }}
-                  </a>
+                  {% if observation.ground_station %}
+                    <a href="{% url 'base:station_view' id=observation.ground_station.id %}">
+                      {{ observation.ground_station }}
+                    </a>
+                  {% endif %}
                 </td>
               </tr>
             {% endfor %}