record meals that were added to list, allow delete with ingredients

src/ports.rs

@@ -2,8 +2,8 @@ use async_trait::async_trait;
 use sqlx::SqliteConnection;
 
 use crate::domain::{
-    Category, DomainResult, GroceryList, Item, Meal, MealCategory, MealIngredient, Passkey,
-    PresenceUser, SessionUser, User,
+    Category, DomainResult, GroceryList, Item, ListMeal, Meal, MealCategory, MealIngredient,
+    Passkey, PresenceUser, SessionUser, User,
 };
 
 /// Repositories take `&mut SqliteConnection` (which a `Transaction` derefs to),
@@ -113,6 +113,9 @@ pub struct NewItem {
     pub quantity: String,
     pub note: String,
     pub category_id: Option<i64>,
+    /// When set, links this item to the `list_meals` row it came from, so the
+    /// item is removed together with that meal instance.
+    pub list_meal_id: Option<i64>,
 }
 
 #[async_trait]
@@ -158,6 +161,28 @@ pub trait ItemRepository: Send + Sync {
     ) -> DomainResult<i64>;
 }
 
+#[async_trait]
+pub trait ListMealRepository: Send + Sync {
+    async fn list_meals(
+        &self,
+        txn: &mut SqliteConnection,
+        list_id: i64,
+    ) -> DomainResult<Vec<ListMeal>>;
+    async fn add_meal(
+        &self,
+        txn: &mut SqliteConnection,
+        list_id: i64,
+        meal_id: i64,
+        name: String,
+    ) -> DomainResult<i64>;
+    async fn remove_meal(
+        &self,
+        txn: &mut SqliteConnection,
+        list_id: i64,
+        list_meal_id: i64,
+    ) -> DomainResult<i64>;
+}
+
 #[async_trait]
 pub trait InvitationRepository: Send + Sync {
     async fn create_invitation(