fix member deletion: property delete on cascade

lib/membership/member.ex

@@ -9,7 +9,7 @@ defmodule Mv.Membership.Member do
   end
 
   actions do
-    defaults [:read, :destroy]
+    defaults [:read]
 
     create :create_member do
       primary? true
@@ -34,6 +34,11 @@ defmodule Mv.Membership.Member do
       change manage_relationship(:properties, type: :create)
     end
 
+    destroy :destroy do
+      primary? true
+      change Ash.Resource.Change.Builtins.cascade_destroy(:properties)
+    end
+
     update :update_member do
       primary? true
       require_atomic? false
@@ -211,6 +216,6 @@ defmodule Mv.Membership.Member do
   end
 
   relationships do
-    has_many :properties, Mv.Membership.Property
+    has_many :properties, Mv.Membership.Property, destination_attribute: :member_id
   end
 end

lib/membership/property.ex

@@ -6,6 +6,10 @@ defmodule Mv.Membership.Property do
   postgres do
     table "properties"
     repo Mv.Repo
+
+    references do
+      reference :member, on_delete: :delete
+    end
   end
 
   actions do

priv/repo/migrations/20250617132424_member_delete.exs

@@ -0,0 +1,38 @@
+defmodule Mv.Repo.Migrations.MemberDelete do
+  @moduledoc """
+  Updates resources based on their most recent snapshots.
+
+  This file was autogenerated with `mix ash_postgres.generate_migrations`
+  """
+
+  use Ecto.Migration
+
+  def up do
+    drop constraint(:properties, "properties_member_id_fkey")
+
+    alter table(:properties) do
+      modify :member_id,
+             references(:members,
+               column: :id,
+               name: "properties_member_id_fkey",
+               type: :uuid,
+               prefix: "public",
+               on_delete: :delete_all
+             )
+    end
+  end
+
+  def down do
+    drop constraint(:properties, "properties_member_id_fkey")
+
+    alter table(:properties) do
+      modify :member_id,
+             references(:members,
+               column: :id,
+               name: "properties_member_id_fkey",
+               type: :uuid,
+               prefix: "public"
+             )
+    end
+  end
+end

priv/resource_snapshots/repo/properties/20250617132424.json

@@ -0,0 +1,105 @@
+{
+  "attributes": [
+    {
+      "allow_nil?": false,
+      "default": "fragment(\"gen_random_uuid()\")",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": true,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "id",
+      "type": "uuid"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": null,
+      "scale": null,
+      "size": null,
+      "source": "value",
+      "type": "map"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": {
+        "deferrable": false,
+        "destination_attribute": "id",
+        "destination_attribute_default": null,
+        "destination_attribute_generated": null,
+        "index?": false,
+        "match_type": null,
+        "match_with": null,
+        "multitenancy": {
+          "attribute": null,
+          "global": null,
+          "strategy": null
+        },
+        "name": "properties_member_id_fkey",
+        "on_delete": "delete",
+        "on_update": null,
+        "primary_key?": true,
+        "schema": "public",
+        "table": "members"
+      },
+      "scale": null,
+      "size": null,
+      "source": "member_id",
+      "type": "uuid"
+    },
+    {
+      "allow_nil?": true,
+      "default": "nil",
+      "generated?": false,
+      "precision": null,
+      "primary_key?": false,
+      "references": {
+        "deferrable": false,
+        "destination_attribute": "id",
+        "destination_attribute_default": null,
+        "destination_attribute_generated": null,
+        "index?": false,
+        "match_type": null,
+        "match_with": null,
+        "multitenancy": {
+          "attribute": null,
+          "global": null,
+          "strategy": null
+        },
+        "name": "properties_property_type_id_fkey",
+        "on_delete": null,
+        "on_update": null,
+        "primary_key?": true,
+        "schema": "public",
+        "table": "property_types"
+      },
+      "scale": null,
+      "size": null,
+      "source": "property_type_id",
+      "type": "uuid"
+    }
+  ],
+  "base_filter": null,
+  "check_constraints": [],
+  "custom_indexes": [],
+  "custom_statements": [],
+  "has_create_action": true,
+  "hash": "4F17BE0106435A1D75D46A3ABDE6A3DA20FC9B1C43D101B6C310009279DD7CBA",
+  "identities": [],
+  "multitenancy": {
+    "attribute": null,
+    "global": null,
+    "strategy": null
+  },
+  "repo": "Elixir.Mv.Repo",
+  "schema": null,
+  "table": "properties"
+}