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refactor: deduplicate match queries

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This commit is contained in:
Stijn Seghers 2022-10-13 15:09:18 +02:00 committed by iasoon
parent ae57359353
commit ce07419bbc
1 changed files with 21 additions and 35 deletions
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56
planetwars-server/src/db/matches.rs
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@ -1,6 +1,7 @@
pub use crate::db_types::MatchState;
use chrono::NaiveDateTime;
use diesel::associations::BelongsTo;
use diesel::pg::Pg;
use diesel::sql_types::*;
use diesel::{
BelongingToDsl, ExpressionMethods, JoinOnDsl, NullableExpressionMethods, QueryDsl, RunQueryDsl,
@ -164,28 +165,7 @@ pub fn list_public_matches(
conn: &mut PgConnection,
) -> QueryResult<Vec<FullMatchData>> {
conn.transaction(|conn| {
// TODO: how can this common logic be abstracted?
let mut query = matches::table
.filter(matches::state.eq(MatchState::Finished))
.filter(matches::is_public.eq(true))
.into_boxed();
// TODO: how to remove this duplication?
query = match (before, after) {
(None, None) => query.order_by(matches::created_at.desc()),
(Some(before), None) => query
.filter(matches::created_at.lt(before))
.order_by(matches::created_at.desc()),
(None, Some(after)) => query
.filter(matches::created_at.gt(after))
.order_by(matches::created_at.asc()),
(Some(before), Some(after)) => query
.filter(matches::created_at.lt(before))
.filter(matches::created_at.gt(after))
.order_by(matches::created_at.desc()),
};
query = query.limit(amount);
let query = finished_public_matches_query(before, after).limit(amount);
let matches = query.get_results::<MatchBase>(conn)?;
fetch_full_match_data(matches, conn)
})
@ -199,17 +179,13 @@ pub fn list_bot_matches(
after: Option<NaiveDateTime>,
conn: &mut PgConnection,
) -> QueryResult<Vec<FullMatchData>> {
let mut query = matches::table
.filter(matches::state.eq(MatchState::Finished))
.filter(matches::is_public.eq(true))
.order_by(matches::created_at.desc())
let mut query = finished_public_matches_query(before, after)
.inner_join(match_players::table)
.inner_join(
bot_versions::table.on(match_players::bot_version_id.eq(bot_versions::id.nullable())),
)
.filter(bot_versions::bot_id.eq(bot_id))
.select(matches::all_columns)
.into_boxed();
.select(matches::all_columns);
if let Some(outcome) = outcome {
query = match outcome {
@ -223,8 +199,22 @@ pub fn list_bot_matches(
};
}
// TODO: how to remove this duplication?
query = match (before, after) {
query = query.limit(amount);
let matches = query.get_results::<MatchBase>(conn)?;
fetch_full_match_data(matches, conn)
}
fn finished_public_matches_query(
before: Option<NaiveDateTime>,
after: Option<NaiveDateTime>,
) -> matches::BoxedQuery<'static, Pg> {
let query = matches::table
.filter(matches::state.eq(MatchState::Finished))
.filter(matches::is_public.eq(true))
.into_boxed();
match (before, after) {
(None, None) => query.order_by(matches::created_at.desc()),
(Some(before), None) => query
.filter(matches::created_at.lt(before))
@ -236,11 +226,7 @@ pub fn list_bot_matches(
.filter(matches::created_at.lt(before))
.filter(matches::created_at.gt(after))
.order_by(matches::created_at.desc()),
};
query = query.limit(amount);
let matches = query.get_results::<MatchBase>(conn)?;
fetch_full_match_data(matches, conn)
}
}
// TODO: maybe unify this with matchdata?