Add redirect demo

backend/right_tree/api/data/fixtures/006_zones.json

@@ -690,7 +690,7 @@
             "name": "SPRAY ZONE",
             "variant": "Coastal",
             "refined_variant": "Bush Edge",
-            "redirect_habitat": null,
+            "redirect_habitat": 2,
             "ignore_soil_order_filter": false,
             "ignore_location_filter": false
         }

backend/right_tree/api/data/fixtures/007_sample_habitat_images.json

@@ -16,5 +16,14 @@
             "name": "Salt Marsh",
             "image_filename": "03-coastal-grass-reeds-scrub.png"
         }
+    },
+    {
+        "model": "api.habitatimage",
+        "pk": 3,
+        "fields": {
+            "habitat": 2,
+            "name": "Bush Hillsides",
+            "image_filename": "07-riparian-bush-hillsides.png"
+        }
     }
 ]

backend/right_tree/api/migrations/0008_alter_zone_redirect_habitat.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.2.8 on 2021-11-10 22:02
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0007_alter_zoneimagesegment_segment_percentage_width'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='zone',
+            name='redirect_habitat',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='zone_redirects', to='api.habitat'),
+        ),
+    ]

backend/right_tree/api/models.py

@@ -75,7 +75,7 @@ class Zone(models.Model):
     variant = models.CharField(null=True, blank=True, max_length=50)
     refined_variant = models.CharField(null=True, blank=True, max_length=100)
     redirect_habitat = models.ForeignKey(
-        HabitatImage, blank=True, null=True, on_delete=models.CASCADE,  related_name='zone_redirects')
+        Habitat, blank=True, null=True, on_delete=models.CASCADE,  related_name='zone_redirects')
     ignore_soil_order_filter = models.BooleanField(default=False)
     ignore_location_filter = models.BooleanField(default=False)
 

backend/right_tree/api/serializers.py

@@ -39,18 +39,25 @@ class SoilVariantSerializer(serializers.HyperlinkedModelSerializer):
         model = SoilVariant
         fields = ['name']
 
-
 class SimpleHabitatImageSerializer(serializers.HyperlinkedModelSerializer):
     id = serializers.ReadOnlyField()
 
     class Meta:
         model = HabitatImage
-        fields = ['id', 'name', 'image_filename']
+        fields = ['id']
+
+class SimpleHabitatSerializer(serializers.HyperlinkedModelSerializer):
+    id = serializers.ReadOnlyField()
+    images = SimpleHabitatImageSerializer(many=True)
+
+    class Meta:
+        model = Habitat
+        fields = ['id', 'name', 'images']
 
 
 class ZoneSerializer(serializers.HyperlinkedModelSerializer):
     id = serializers.ReadOnlyField()
-    redirect_habitat = SimpleHabitatImageSerializer()
+    redirect_habitat = SimpleHabitatSerializer()
 
     class Meta:
         model = Zone