feat: make pantry items and meal plan entries user-scoped; update related services and controllers

backend/prisma/migrations/20260422130000_user_scope_pantry_meal_plan/migration.sql

@@ -0,0 +1,25 @@
+-- PantryItem: make user-scoped
+ALTER TABLE `PantryItem` ADD COLUMN `userId` INTEGER NULL;
+
+UPDATE `PantryItem`
+SET `userId` = (SELECT `id` FROM `User` ORDER BY `id` ASC LIMIT 1)
+WHERE `userId` IS NULL;
+
+ALTER TABLE `PantryItem` DROP INDEX `PantryItem_productId_key`;
+ALTER TABLE `PantryItem` MODIFY `userId` INTEGER NOT NULL;
+ALTER TABLE `PantryItem` ADD INDEX `PantryItem_userId_idx`(`userId`);
+ALTER TABLE `PantryItem` ADD UNIQUE INDEX `PantryItem_userId_productId_key`(`userId`, `productId`);
+ALTER TABLE `PantryItem` ADD CONSTRAINT `PantryItem_userId_fkey` FOREIGN KEY (`userId`) REFERENCES `User`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- MealPlanEntry: make user-scoped
+ALTER TABLE `MealPlanEntry` ADD COLUMN `userId` INTEGER NULL;
+
+UPDATE `MealPlanEntry`
+SET `userId` = (SELECT `id` FROM `User` ORDER BY `id` ASC LIMIT 1)
+WHERE `userId` IS NULL;
+
+ALTER TABLE `MealPlanEntry` DROP INDEX `MealPlanEntry_date_key`;
+ALTER TABLE `MealPlanEntry` MODIFY `userId` INTEGER NOT NULL;
+ALTER TABLE `MealPlanEntry` ADD INDEX `MealPlanEntry_userId_idx`(`userId`);
+ALTER TABLE `MealPlanEntry` ADD UNIQUE INDEX `MealPlanEntry_userId_date_key`(`userId`, `date`);
+ALTER TABLE `MealPlanEntry` ADD CONSTRAINT `MealPlanEntry_userId_fkey` FOREIGN KEY (`userId`) REFERENCES `User`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;

backend/prisma/schema.prisma

@@ -23,6 +23,8 @@ model User {
   ownedRecipes Recipe[]      @relation("RecipeOwner")
   sharedRecipes RecipeShare[]
   ownedProducts Product[]
+  pantryItems PantryItem[]
+  mealPlanEntries MealPlanEntry[]
 }
 
 model Product {
@@ -160,10 +162,15 @@ model RecipeIngredient {
 
 model PantryItem {
   id        Int      @id @default(autoincrement())
-  productId Int      @unique
+  userId    Int
+  productId Int
+  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)
   product   Product  @relation(fields: [productId], references: [id], onDelete: Cascade)
   createdAt DateTime @default(now())
   updatedAt DateTime @updatedAt
+
+  @@unique([userId, productId])
+  @@index([userId])
 }
 
 model ReceiptAlias {
@@ -176,14 +183,17 @@ model ReceiptAlias {
 
 model MealPlanEntry {
   id        Int      @id @default(autoincrement())
+  userId    Int
   date      DateTime @db.Date
   recipe    Recipe   @relation(fields: [recipeId], references: [id], onDelete: Cascade)
   recipeId  Int
+  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)
   servings  Int?
   createdAt DateTime @default(now())
   updatedAt DateTime @updatedAt
 
-  @@unique([date])
+  @@unique([userId, date])   # Bara ett recept per dag och användare
+  @@index([userId])
   @@index([date])
 }