add cascade delete constraints on agency-related tables

Author: celineung

back/src/config/pg/migrations/1781790712181_add-cascade-delete-on-agency-convention-drafts-and-templates.ts

@@ -0,0 +1,84 @@
+import type { MigrationBuilder } from "node-pg-migrate";
+
+export async function up(pgm: MigrationBuilder): Promise<void> {
+  pgm.dropConstraint("convention_drafts", "convention_drafts_agency_id_fk");
+  pgm.addConstraint("convention_drafts", "convention_drafts_agency_id_fk", {
+    foreignKeys: {
+      columns: "agency_id",
+      references: "agencies(id)",
+      onDelete: "CASCADE",
+    },
+  });
+
+  pgm.dropConstraint(
+    "convention_templates",
+    "convention_templates_agency_id_fk",
+  );
+  pgm.addConstraint(
+    "convention_templates",
+    "convention_templates_agency_id_fk",
+    {
+      foreignKeys: {
+        columns: "agency_id",
+        references: "agencies(id)",
+        onDelete: "CASCADE",
+      },
+    },
+  );
+
+  pgm.dropConstraint(
+    "agency_groups__agencies",
+    "agency_groups__agencies_agency_id_fkey",
+  );
+  pgm.addConstraint(
+    "agency_groups__agencies",
+    "agency_groups__agencies_agency_id_fkey",
+    {
+      foreignKeys: {
+        columns: "agency_id",
+        references: "agencies(id)",
+        onDelete: "CASCADE",
+      },
+    },
+  );
+}
+
+export async function down(pgm: MigrationBuilder): Promise<void> {
+  pgm.dropConstraint(
+    "agency_groups__agencies",
+    "agency_groups__agencies_agency_id_fkey",
+  );
+  pgm.addConstraint(
+    "agency_groups__agencies",
+    "agency_groups__agencies_agency_id_fkey",
+    {
+      foreignKeys: {
+        columns: "agency_id",
+        references: "agencies(id)",
+      },
+    },
+  );
+
+  pgm.dropConstraint(
+    "convention_templates",
+    "convention_templates_agency_id_fk",
+  );
+  pgm.addConstraint(
+    "convention_templates",
+    "convention_templates_agency_id_fk",
+    {
+      foreignKeys: {
+        columns: "agency_id",
+        references: "agencies(id)",
+      },
+    },
+  );
+
+  pgm.dropConstraint("convention_drafts", "convention_drafts_agency_id_fk");
+  pgm.addConstraint("convention_drafts", "convention_drafts_agency_id_fk", {
+    foreignKeys: {
+      columns: "agency_id",
+      references: "agencies(id)",
+    },
+  });
+}