Add data migrations to populate locations

temba/locations/migrations/0034_populate_locations.py

@@ -0,0 +1,55 @@
+# Generated by Django 5.1.4 on 2025-01-09 10:50
+import geojson
+
+from django.db import migrations
+
+
+def populate_locations(apps, schema_editor):
+    Org = apps.get_model("orgs", "Org")
+    AdminBoundary = apps.get_model("locations", "AdminBoundary")
+    BoundaryAlias = apps.get_model("locations", "BoundaryAlias")
+    Location = apps.get_model("locations", "Location")
+    LocationAlias = apps.get_model("locations", "LocationAlias")
+
+    location_id_by_boundary_id = {}
+    location_id_by_country_id = {}
+
+    boundaries = AdminBoundary.objects.all().order_by("level", "osm_id").select_related("parent")
+    for boundary in boundaries:
+        geometry = geojson.loads(boundary.simplified_geometry.geojson)
+        obj = Location.objects.create(
+            osm_id=boundary.osm_id,
+            name=boundary.name,
+            level=boundary.level,
+            parent_id=None if not boundary.parent else location_id_by_boundary_id[boundary.parent_id],
+            path=boundary.path,
+            simplified_geometry=geometry,
+            lft=boundary.lft,
+            rght=boundary.rght,
+            tree_id=boundary.tree_id,
+        )
+        location_id_by_boundary_id[boundary.id] = obj.id
+        if boundary.level == 0:
+            location_id_by_country_id[boundary.id] = obj.id
+
+    orgs = Org.objects.all().exclude(country=None)
+    for org in orgs:
+        org.location_id = location_id_by_country_id[org.country_id]
+        org.save(update_fields=("location_id",))
+
+        aliases = BoundaryAlias.objects.filter(org=org)
+        for alias in aliases:
+            LocationAlias.objects.create(
+                org=org,
+                location_id=location_id_by_boundary_id[alias.boundary_id],
+                name=alias.name,
+            )
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("locations", "0033_location_locationalias_location_locations_by_name_and_more"),
+    ]
+
+    operations = [migrations.RunPython(populate_locations, migrations.RunPython.noop)]