save match winner in database

planetwars-server/migrations/2022-05-29-085905_add_winner_to_matches/down.sql

@@ -0,0 +1,3 @@
+-- This file should undo anything in `up.sql`
+ALTER TABLE matches
+DROP column winner;

planetwars-server/migrations/2022-05-29-085905_add_winner_to_matches/up.sql

@@ -0,0 +1,3 @@
+-- Your SQL goes here
+ALTER TABLE matches
+ADD COLUMN winner integer;

planetwars-server/src/db/matches.rs

@@ -35,6 +35,7 @@ pub struct MatchBase {
     pub state: MatchState,
     pub log_path: String,
     pub created_at: NaiveDateTime,
+    pub winner: Option<i32>,
 }
 
 #[derive(Queryable, Identifiable, Associations, Clone)]
@@ -158,9 +159,15 @@ pub fn find_match_base(id: i32, conn: &PgConnection) -> QueryResult<MatchBase> {
     matches::table.find(id).get_result::<MatchBase>(conn)
 }
 
-pub fn set_match_state(id: i32, match_state: MatchState, conn: &PgConnection) -> QueryResult<()> {
+pub enum MatchResult {
+    Finished { winner: Option<i32> }
+}
+
+pub fn save_match_result(id: i32, result: MatchResult, conn: &PgConnection) -> QueryResult<()> {
+    let MatchResult::Finished { winner } = result;
+
     diesel::update(matches::table.find(id))
-        .set(matches::state.eq(match_state))
+        .set((matches::winner.eq(winner), matches::state.eq(MatchState::Finished)))
         .execute(conn)?;
     Ok(())
-}
+}

planetwars-server/src/modules/matches.rs

@@ -6,7 +6,10 @@ use runner::MatchOutcome;
 use tokio::task::JoinHandle;
 
 use crate::{
-    db::{self, matches::MatchData},
+    db::{
+        self,
+        matches::{MatchData, MatchResult},
+    },
     util::gen_alphanumeric,
     ConnectionPool, BOTS_DIR, MAPS_DIR, MATCHES_DIR,
 };
@@ -95,8 +98,11 @@ async fn run_match_task(
         .await
         .expect("could not get database connection");
 
-    db::matches::set_match_state(match_id, db::matches::MatchState::Finished, &conn)
-        .expect("could not update match state");
+    let result = MatchResult::Finished {
+        winner: outcome.winner.map(|w| (w - 1) as i32), // player numbers in matchrunner start at 1
+    };
+
+    db::matches::save_match_result(match_id, result, &conn).expect("could not save match result");
 
     return outcome;
 }

planetwars-server/src/schema.rs

@@ -44,6 +44,7 @@ table! {
         state -> Match_state,
         log_path -> Text,
         created_at -> Timestamp,
+        winner -> Nullable<Int4>,
     }
 }