Support Facility logos to be served through the api

- It's a URLField
- Depends on trusting the admins not to insert dirty images to be sent to clients
- pls

Closes #37

whats-open/api/admin.py

@@ -27,7 +27,7 @@ class FacilityAdmin(admin.ModelAdmin):
     # We are basically reordering things to look nicer to the user here
     fieldsets = (
         (None, {
-            'fields': ('facility_name', 'facility_category', 'facility_location',
+            'fields': ('facility_name', 'logo', 'facility_category', 'facility_location',
                        'main_schedule', 'special_schedules', 
                        'facility_product_tags', 'tapingo_url', 'owners'),
         }),

whats-open/api/models.py

@@ -106,6 +106,11 @@ class Facility(TimeStampedModel):
     facility_location = models.ForeignKey('Location',
                                           related_name="facilities")
 
+    # A link to the logo image for this Facility
+    logo = models.URLField('Logo URL', blank=True,
+                           default="https://imgur.com/q2Phkn9.png",
+                           help_text="The absolute URL to the logo image for this Facility.")
+
     # The User(s) that claim ownership over this facility
     owners = models.ManyToManyField(User)
 

whats-open/api/serializers.py

@@ -94,7 +94,7 @@ class FacilitySerializer(serializers.HyperlinkedModelSerializer):
         # Choose the model to be serialized
         model = Facility
         # List the fields that we are serializing
-        fields = ('slug', 'facility_name', 'facility_location', 'facility_category',
+        fields = ('slug', 'facility_name', 'logo', 'facility_location', 'facility_category',
                   'facility_product_tags', 'tapingo_url',
                   'main_schedule', 'special_schedules',
                   'modified', )

whats-open/api/views.py

@@ -363,13 +363,14 @@ class FacilityViewSet(viewsets.ReadOnlyModelViewSet):
     FILTER_FIELDS = (
         # Facility fields
         'facility_name',
+        'logo',
         'tapingo_url',
         'facility_product_tags__name',
         # Category fields
         'facility_category__name',
         # Location fields
         'facility_location__building',
-        'facility_location_friendly_building',
+        'facility_location__friendly_building',
         'facility_location__address',
         'facility_location__on_campus',
         'facility_location__campus_region',