feat: Add initial Prisma schema with data models and configure cascade deletes for restaurant-related entities.

prisma/migrations/20251129124816_cascade_delete_restaurant/migration.sql

@@ -0,0 +1,17 @@
+-- DropForeignKey
+ALTER TABLE "Category" DROP CONSTRAINT "Category_restaurantId_fkey";
+
+-- DropForeignKey
+ALTER TABLE "MenuItem" DROP CONSTRAINT "MenuItem_categoryId_fkey";
+
+-- DropForeignKey
+ALTER TABLE "MenuItem" DROP CONSTRAINT "MenuItem_restaurantId_fkey";
+
+-- AddForeignKey
+ALTER TABLE "Category" ADD CONSTRAINT "Category_restaurantId_fkey" FOREIGN KEY ("restaurantId") REFERENCES "Restaurant"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "MenuItem" ADD CONSTRAINT "MenuItem_categoryId_fkey" FOREIGN KEY ("categoryId") REFERENCES "Category"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "MenuItem" ADD CONSTRAINT "MenuItem_restaurantId_fkey" FOREIGN KEY ("restaurantId") REFERENCES "Restaurant"("id") ON DELETE CASCADE ON UPDATE CASCADE;

prisma/schema.prisma

@@ -99,7 +99,7 @@ model Category {
   name String
 
   restaurantId String
-  restaurant   Restaurant @relation(fields: [restaurantId], references: [id])
+  restaurant   Restaurant @relation(fields: [restaurantId], references: [id], onDelete: Cascade)
 
   items MenuItem[]
 }
@@ -112,10 +112,10 @@ model MenuItem {
   image       String?
 
   categoryId String?
-  category   Category? @relation(fields: [categoryId], references: [id])
+  category   Category? @relation(fields: [categoryId], references: [id], onDelete: Cascade)
 
   restaurantId String
-  restaurant   Restaurant @relation(fields: [restaurantId], references: [id])
+  restaurant   Restaurant @relation(fields: [restaurantId], references: [id], onDelete: Cascade)
 
   createdAt DateTime @default(now())
 }