emgauwa/controller
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Add sql transactions

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This commit is contained in:
Tobias Reisinger 2024-05-02 13:30:24 +02:00
parent f4fbc95500
commit 4489b37a3f
Signed by: serguzim
GPG key ID: 13AD60C237A28DFE
3 changed files with 39 additions and 42 deletions
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5
src/app_state.rs
View file

@ -86,9 +86,10 @@ impl Handler<Reload> for AppState {
fn handle(&mut self, _msg: Reload, _ctx: &mut Self::Context) -> Self::Result {
log::debug!("Reloading controller");
let mut pool_conn = block_on(self.pool.acquire())?;
let mut tx = block_on(self.pool.begin())?;
self.this.reload(&mut pool_conn)?;
self.this.reload(&mut tx)?;
block_on(tx.commit())?;
self.notify_controller_change();

29
src/main.rs
View file

@ -6,7 +6,7 @@ use emgauwa_common::models::{Controller, FromDbModel};
use emgauwa_common::types::EmgauwaUid;
use emgauwa_common::utils::{drop_privileges, init_logging};
use rppal_pfd::PiFaceDigital;
use sqlx::pool::PoolConnection;
use sqlx::Transaction;
use sqlx::Sqlite;
use crate::relay_loop::run_relays_loop;
@ -21,11 +21,11 @@ mod utils;
mod ws;
async fn create_this_controller(
conn: &mut PoolConnection<Sqlite>,
tx: &mut Transaction<'_, Sqlite>,
settings: &Settings,
) -> Result<DbController, EmgauwaError> {
DbController::create(
conn,
tx,
&EmgauwaUid::default(),
&settings.name,
settings.relays.len() as i64,
@ -35,12 +35,12 @@ async fn create_this_controller(
}
async fn create_this_relay(
conn: &mut PoolConnection<Sqlite>,
tx: &mut Transaction<'_, Sqlite>,
this_controller: &DbController,
settings_relay: &settings::Relay,
) -> Result<DbRelay, EmgauwaError> {
let relay = DbRelay::create(
conn,
tx,
&settings_relay.name,
settings_relay.number.ok_or(EmgauwaError::Internal(
"Relay number is missing".to_string(),
@ -49,9 +49,9 @@ async fn create_this_relay(
)
.await?;
let off = DbSchedule::get_off(conn).await?;
let off = DbSchedule::get_off(tx).await?;
for weekday in 0..7 {
DbJunctionRelaySchedule::set_schedule(conn, &relay, &off, weekday).await?;
DbJunctionRelaySchedule::set_schedule(tx, &relay, &off, weekday).await?;
}
Ok(relay)
@ -72,20 +72,20 @@ async fn main() -> Result<(), std::io::Error> {
.await
.map_err(EmgauwaError::from)?;
let mut conn = pool.acquire().await.map_err(EmgauwaError::from)?;
let mut tx = pool.begin().await.map_err(EmgauwaError::from)?;
let db_controller = match DbController::get_all(&mut conn)
let db_controller = match DbController::get_all(&mut tx)
.await
.map_err(EmgauwaError::from)?
.pop()
{
None => futures::executor::block_on(create_this_controller(&mut conn, &settings))?,
None => futures::executor::block_on(create_this_controller(&mut tx, &settings))?,
Some(c) => c,
};
for relay in &settings.relays {
if DbRelay::get_by_controller_and_num(
&mut conn,
&mut tx,
&db_controller,
relay.number.ok_or(EmgauwaError::Internal(
"Relay number is missing".to_string(),
@ -95,18 +95,19 @@ async fn main() -> Result<(), std::io::Error> {
.map_err(EmgauwaError::from)?
.is_none()
{
create_this_relay(&mut conn, &db_controller, relay)
create_this_relay(&mut tx, &db_controller, relay)
.await
.map_err(EmgauwaError::from)?;
}
}
let db_controller = db_controller
.update(&mut conn, &db_controller.name, settings.relays.len() as i64)
.update(&mut tx, &db_controller.name, settings.relays.len() as i64)
.await
.map_err(EmgauwaError::from)?;
let this = Controller::from_db_model(&mut conn, db_controller).map_err(EmgauwaError::from)?;
let this = Controller::from_db_model(&mut tx, db_controller).map_err(EmgauwaError::from)?;
tx.commit().await.map_err(EmgauwaError::from)?;
let url = format!(
"ws://{}:{}/api/v1/ws/controllers",

47
src/ws/mod.rs
View file

@ -5,7 +5,7 @@ use emgauwa_common::errors::{DatabaseError, EmgauwaError};
use emgauwa_common::models::{Controller, Relay};
use emgauwa_common::types::{ControllerWsAction, ScheduleUid};
use futures::{future, pin_mut, SinkExt, StreamExt};
use sqlx::pool::PoolConnection;
use sqlx::Transaction;
use sqlx::{Pool, Sqlite};
use tokio::time;
use tokio_tungstenite::tungstenite::Message;
@ -108,14 +108,7 @@ async fn handle_message(
match serde_json::from_str(&text) {
Ok(action) => {
log::debug!("Received action: {:?}", action);
let mut pool_conn = match pool.acquire().await {
Ok(conn) => conn,
Err(err) => {
log::error!("Failed to acquire database connection: {:?}", err);
return;
}
};
let action_res = handle_action(&mut pool_conn, app_state, action).await;
let action_res = handle_action(pool, app_state, action).await;
if let Err(e) = action_res {
log::error!("Error handling action: {:?}", e);
}
@ -128,29 +121,31 @@ async fn handle_message(
}
pub async fn handle_action(
conn: &mut PoolConnection<Sqlite>,
pool: Pool<Sqlite>,
app_state: &Addr<AppState>,
action: ControllerWsAction,
) -> Result<(), EmgauwaError> {
let this = app_state_get_this(app_state).await?;
let mut tx = pool.begin().await?;
match action {
ControllerWsAction::Controller(controller) => {
handle_controller(conn, &this, controller).await?
handle_controller(&mut tx, &this, controller).await?
}
ControllerWsAction::Relays(relays) => handle_relays(conn, &this, relays).await?,
ControllerWsAction::Schedules(schedules) => handle_schedules(conn, schedules).await?,
ControllerWsAction::Relays(relays) => handle_relays(&mut tx, &this, relays).await?,
ControllerWsAction::Schedules(schedules) => handle_schedules(&mut tx, schedules).await?,
ControllerWsAction::RelayPulse((relay_num, duration)) => {
handle_relay_pulse(app_state, relay_num, duration).await?
}
_ => return Ok(()),
};
tx.commit().await?;
utils::app_state_reload(app_state).await
}
async fn handle_controller(
conn: &mut PoolConnection<Sqlite>,
tx: &mut Transaction<'_, Sqlite>,
this: &Controller,
controller: Controller,
) -> Result<(), EmgauwaError> {
@ -159,17 +154,17 @@ async fn handle_controller(
"Controller UID mismatch during update",
)));
}
DbController::get_by_uid(conn, &controller.c.uid)
DbController::get_by_uid(tx, &controller.c.uid)
.await?
.ok_or(DatabaseError::NotFound)?
.update(conn, controller.c.name.as_str(), this.c.relay_count)
.update(tx, controller.c.name.as_str(), this.c.relay_count)
.await?;
Ok(())
}
async fn handle_schedules(
conn: &mut PoolConnection<Sqlite>,
tx: &mut Transaction<'_, Sqlite>,
schedules: Vec<DbSchedule>,
) -> Result<(), EmgauwaError> {
let mut handled_uids = vec![
@ -184,15 +179,15 @@ async fn handle_schedules(
handled_uids.push(schedule.uid.clone());
log::debug!("Handling schedule: {:?}", schedule);
let schedule_db = DbSchedule::get_by_uid(conn, &schedule.uid).await?;
let schedule_db = DbSchedule::get_by_uid(tx, &schedule.uid).await?;
if let Some(schedule_db) = schedule_db {
schedule_db
.update(conn, schedule.name.as_str(), &schedule.periods)
.update(tx, schedule.name.as_str(), &schedule.periods)
.await?;
} else {
DbSchedule::create(
conn,
tx,
schedule.uid.clone(),
schedule.name.as_str(),
&schedule.periods,
@ -205,7 +200,7 @@ async fn handle_schedules(
}
async fn handle_relays(
conn: &mut PoolConnection<Sqlite>,
tx: &mut Transaction<'_, Sqlite>,
this: &Controller,
relays: Vec<Relay>,
) -> Result<(), EmgauwaError> {
@ -215,24 +210,24 @@ async fn handle_relays(
"Controller UID mismatch during relay update",
)));
}
let db_relay = DbRelay::get_by_controller_and_num(conn, &this.c, relay.r.number)
let db_relay = DbRelay::get_by_controller_and_num(tx, &this.c, relay.r.number)
.await?
.ok_or(DatabaseError::NotFound)?;
db_relay.update(conn, relay.r.name.as_str()).await?;
db_relay.update(tx, relay.r.name.as_str()).await?;
handle_schedules(conn, relay.schedules.clone()).await?;
handle_schedules(tx, relay.schedules.clone()).await?;
let mut schedules = Vec::new(); // We need to get the schedules from the database to have the right IDs
for schedule in relay.schedules {
schedules.push(
DbSchedule::get_by_uid(conn, &schedule.uid)
DbSchedule::get_by_uid(tx, &schedule.uid)
.await?
.ok_or(DatabaseError::NotFound)?,
);
}
DbJunctionRelaySchedule::set_schedules(conn, &db_relay, schedules.iter().collect()).await?;
DbJunctionRelaySchedule::set_schedules(tx, &db_relay, schedules.iter().collect()).await?;
}
Ok(())