impls chest content query, still working on the api...

lootalot_db/src/lib.rs

@@ -7,33 +7,42 @@ extern crate serde_derive;
 use diesel::prelude::*;
 use diesel::r2d2::{self, ConnectionManager};
 
-pub fn establish_connection() -> Result<SqliteConnection, String> {
-    dotenv::dotenv().ok();
-    let database_url = std::env::var("DATABASE_URL").expect("DATABASE_URL must be set !");
-    SqliteConnection::establish(&database_url)
-        .map_err(|e| format!("Error connecting to {} : {:?}", database_url, e))
-}
-
 pub mod models;
 pub mod schema;
 
+pub type DbConnection = SqliteConnection;
+pub type Pool = r2d2::Pool<ConnectionManager<DbConnection>>;
+pub type QueryResult<T> = Result<T, diesel::result::Error>;
+
+pub use models::Item;
 pub use models::Player;
 
 impl Player {
-    pub fn fetch_list(
-        conn: &SqliteConnection,
-    ) -> Result<Vec<models::Player>, diesel::result::Error> {
+    pub fn fetch_list(conn: &SqliteConnection) -> QueryResult<Vec<Self>> {
         use schema::players::dsl::*;
-        Ok(players.load::<models::Player>(conn)?)
+        Ok(players.load::<Self>(conn)?)
+    }
+
+    pub fn fetch_chest(player: i32, conn: &SqliteConnection) -> QueryResult<Vec<Item>> {
+        let owned = {
+            use schema::looted::dsl::*;
+            looted.filter(player_id.eq(player)).select(item_id).load::<i32>(conn)?
+        };
+        dbg!(&owned);
+        let chest = {
+            use schema::items::dsl::*;
+            items.filter(id.eq_any(owned)).load::<Item>(conn)?
+        };
+        dbg!(&chest);
+        Ok(chest)
     }
 }
 
-pub type Pool = r2d2::Pool<ConnectionManager<SqliteConnection>>;
 
 pub fn create_pool() -> Pool {
     dotenv::dotenv().ok();
     let connspec = std::env::var("DATABASE_URL").expect("DATABASE_URL");
-    let manager = ConnectionManager::<SqliteConnection>::new(connspec);
+    let manager = ConnectionManager::<DbConnection>::new(connspec);
     r2d2::Pool::builder()
         .build(manager)
         .expect("Failed to create pool.")

lootalot_db/src/models/item.rs

@@ -0,0 +1,8 @@
+use crate::*;
+
+#[derive(Debug, Queryable, Serialize)]
+pub struct Item {
+    id: i32,
+    name: String,
+    base_value: i32,
+}

lootalot_db/src/models/mod.rs

@@ -0,0 +1,5 @@
+mod item;
+mod player;
+
+pub use item::Item;
+pub use player::Player;