projections.rs 100.0%

9 of 9 lines run, 2 of 4 functions · run #5 on main · run missed

//! Projections (spec §9.3): tables kept from the ledger in the same
//! transaction as each append, and rebuilt from it by `spectra admin
//! rebuild`. Every table here must be a function of the events alone; the
//! test harness and `spectra admin check` hold them to it.

use crate::event::Event;
use sqlx::SqliteConnection;

/// The projection tables, in the order they are cleared and compared.
pub const TABLES: &[&str] = &["event_counts", "identities", "agents"];

/// Apply one event to every projection.
pub async fn apply(conn: &mut SqliteConnection, e: &Event) -> sqlx::Result<()> {
    sqlx::query("INSERT INTO event_counts (kind, n) VALUES (?, 1) ON CONFLICT(kind) DO UPDATE SET n = n + 1")
        .bind(&e.kind)
        .execute(&mut *conn)
        .await?;
    crate::principals::project(conn, e).await?;
    Ok(())
}

1		//! Projections (spec §9.3): tables kept from the ledger in the same
2		//! transaction as each append, and rebuilt from it by `spectra admin
3		//! rebuild`. Every table here must be a function of the events alone; the
4		//! test harness and `spectra admin check` hold them to it.
5
6		use crate::event::Event;
7		use sqlx::SqliteConnection;
8
9		/// The projection tables, in the order they are cleared and compared.
10		pub const TABLES: &[&str] = &["event_counts", "identities", "agents"];
11
12		/// Apply one event to every projection.
13	41741×	pub async fn apply(conn: &mut SqliteConnection, e: &Event) -> sqlx::Result<()> {
14	41741×	sqlx::query("INSERT INTO event_counts (kind, n) VALUES (?, 1) ON CONFLICT(kind) DO UPDATE SET n = n + 1")
15	41741×	.bind(&e.kind)
16	41741×	.execute(&mut *conn)
17	41741×	.await?;
18	41741×	crate::principals::project(conn, e).await?;
19	41741×	Ok(())
20	41741×	}

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Coverage / crates/spectra-core/src/projections.rs 100.0%

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