Add Christchurch Zone model and shapefile ingestion

README.md

@@ -47,6 +47,17 @@ backend/right_tree/api/data/resources/fundamental_soil_layers/
 - fundamental-soil-layers-new-zealand-soil-classification.shp
 - fundamental-soil-layers-new-zealand-soil-classification.shx
 - fundamental-soil-layers-new-zealand-soil-classification.xml
+```
+
+**Christchurch Zone Shapefile:**
+```
+backend/right_tree/api/data/resources/chch_zone/
+- Greater_Christchurch_Area.cpg  
+- Greater_Christchurch_Area.shp
+- Greater_Christchurch_Area.dbf  
+- Greater_Christchurch_Area.shx
+- Greater_Christchurch_Area.prj
+
 ```
 ### Add spreadsheet data for database population
 

backend/right_tree/api/admin.py

@@ -22,3 +22,4 @@ admin.site.register(models.HabitatImage)
 admin.site.register(models.Habitat)
 admin.site.register(models.Zone, ZoneAdmin)
 admin.site.register(models.ZoneImageSegment, ZoneImageSegmentAdmin)
+admin.site.register(models.ChristchurchZone)

backend/right_tree/api/management/commands/loadshapefiles.py

@@ -4,7 +4,7 @@ from django.contrib.gis.utils import LayerMapping
 from pathlib import Path
 
 import right_tree.api.data
-from right_tree.api.models import SoilLayer, EcologicalDistrictLayer
+from right_tree.api.models import SoilLayer, EcologicalDistrictLayer, ChristchurchZone
 
 # Auto-generated `LayerMapping` dictionary for SoilLayers model
 soillayer_mapping = {
@@ -25,9 +25,17 @@ ecologicaldistrictlayer_mapping = {
     'geom': 'POLYGON',
 }
 
+# Auto-generated `LayerMapping` dictionary for ChristchurchZone model
+christchurchzone_mapping = {
+    'objectid': 'OBJECTID',
+    'name': 'NAME',
+    'geom': 'MULTIPOLYGON',
+}
+
 # Shapefiles
 soillayer_shp = Path(right_tree.api.data.__file__).resolve().parent / 'resources' / 'fundamental_soil_layers' / 'fundamental-soil-layers-new-zealand-soil-classification.shp'
 ecologicaldistrictlayer_shp = Path(right_tree.api.data.__file__).resolve().parent / 'resources' / 'ecological_districts' / 'DOC_EcologicalDistricts_2021_08_02.shp'
+christchurchzone_shp = Path(right_tree.api.data.__file__).resolve().parent / 'resources' / 'chch_zone' / 'Greater_Christchurch_Area.shp'
 
 class Command(BaseCommand):
     help = 'Ingests the shapefile data for ecological regions and soil layers.'
@@ -42,3 +50,8 @@ class Command(BaseCommand):
         ecologicaldistrictlayer_lm = LayerMapping(EcologicalDistrictLayer, ecologicaldistrictlayer_shp, ecologicaldistrictlayer_mapping, transform=False)
         ecologicaldistrictlayer_lm.save(strict=True)
         self.stdout.write(self.style.SUCCESS('Ecological district layers loaded succesfully.'))
+
+        self.stdout.write('Loading christchurch zone layer...')
+        christchurchzonelayer_lm = LayerMapping(ChristchurchZone, christchurchzone_shp, christchurchzone_mapping, transform=False)
+        christchurchzonelayer_lm.save(strict=True)
+        self.stdout.write(self.style.SUCCESS(' Christchurch zone layer loaded succesfully.'))

backend/right_tree/api/migrations/0010_christchurchzone.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.2.8 on 2021-11-30 00:40
+
+import django.contrib.gis.db.models.fields
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0009_alter_plant_options'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ChristchurchZone',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('objectid', models.IntegerField()),
+                ('name', models.CharField(max_length=25)),
+                ('geom', django.contrib.gis.db.models.fields.MultiPolygonField(srid=2193)),
+            ],
+        ),
+    ]

backend/right_tree/api/models.py

@@ -46,6 +46,12 @@ class EcologicalDistrictLayer(models.Model):
         return f"{self.ecologic_1} ({self.ecologic_2})"
 
 
+class ChristchurchZone(models.Model):
+    objectid = models.IntegerField()
+    name = models.CharField(max_length=25)
+    geom = models.MultiPolygonField(srid=2193)
+
+
 class ToleranceLevel(models.Model):
     level = models.CharField(max_length=1)