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Improve database errors (NotFound -> Option)

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This commit is contained in:
Tobias Reisinger 2023-11-27 13:33:04 +01:00
parent be7f31906c
commit 8dab4b9a50
Signed by: serguzim
GPG key ID: 13AD60C237A28DFE
9 changed files with 96 additions and 78 deletions
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11
emgauwa-controller/src/main.rs
View file

@ -2,7 +2,6 @@ use std::str;
use crate::relay_loop::run_relay_loop;
use crate::settings::Settings;
use emgauwa_lib::db::errors::DatabaseError;
use emgauwa_lib::db::{DbController, DbRelay};
use emgauwa_lib::types::ControllerUid;
use emgauwa_lib::{db, models};
@ -75,14 +74,10 @@ async fn main() {
relay.number.unwrap(),
)
.await
.expect("Failed to get relay from database")
{
Ok(relay) => relay,
Err(err) => match err {
DatabaseError::NotFound => {
create_this_relay(&mut conn, &db_controller, relay).await
}
_ => panic!("Failed to get relay from database"),
},
None => create_this_relay(&mut conn, &db_controller, relay).await,
Some(relay) => relay,
}
})
})

22
emgauwa-lib/src/db/controllers.rs
View file

@ -21,25 +21,26 @@ impl DbController {
pub async fn get_all(
conn: &mut PoolConnection<Sqlite>,
) -> Result<Vec<DbController>, DatabaseError> {
Ok(sqlx::query_as!(DbController, "SELECT * FROM controllers")
sqlx::query_as!(DbController, "SELECT * FROM controllers")
.fetch_all(conn.deref_mut())
.await?)
.await
.map_err(DatabaseError::from)
}
pub async fn get(
conn: &mut PoolConnection<Sqlite>,
id: i64,
) -> Result<DbController, DatabaseError> {
) -> Result<Option<DbController>, DatabaseError> {
sqlx::query_as!(DbController, "SELECT * FROM controllers WHERE id = ?", id)
.fetch_optional(conn.deref_mut())
.await
.map(|s| s.ok_or(DatabaseError::NotFound))?
.map_err(DatabaseError::from)
}
pub async fn get_by_uid(
conn: &mut PoolConnection<Sqlite>,
filter_uid: &ControllerUid,
) -> Result<DbController, DatabaseError> {
) -> Result<Option<DbController>, DatabaseError> {
sqlx::query_as!(
DbController,
"SELECT * FROM controllers WHERE uid = ?",
@ -47,16 +48,17 @@ impl DbController {
)
.fetch_optional(conn.deref_mut())
.await
.map(|s| s.ok_or(DatabaseError::NotFound))?
.map_err(DatabaseError::from)
}
pub async fn get_by_tag(
conn: &mut PoolConnection<Sqlite>,
tag: &DbTag,
) -> Result<Vec<DbController>, DatabaseError> {
Ok(sqlx::query_as!(DbController, "SELECT schedule.* FROM controllers AS schedule INNER JOIN junction_tag ON junction_tag.schedule_id = schedule.id WHERE junction_tag.tag_id = ?", tag.id)
sqlx::query_as!(DbController, "SELECT schedule.* FROM controllers AS schedule INNER JOIN junction_tag ON junction_tag.schedule_id = schedule.id WHERE junction_tag.tag_id = ?", tag.id)
.fetch_all(conn.deref_mut())
.await?)
.await
.map_err(DatabaseError::from)
}
pub async fn delete_by_uid(
@ -109,6 +111,8 @@ impl DbController {
.execute(conn.deref_mut())
.await?;
Self::get(conn, self.id).await
Self::get(conn, self.id)
.await?
.ok_or(DatabaseError::UpdateGetError)
}
}

20
emgauwa-lib/src/db/errors.rs
View file

@ -12,6 +12,7 @@ pub enum DatabaseError {
NotFound,
Protected,
UpdateError,
UpdateGetError,
Unknown,
}
@ -40,17 +41,20 @@ impl Serialize for DatabaseError {
impl From<&DatabaseError> for String {
fn from(err: &DatabaseError) -> Self {
match err {
DatabaseError::InsertError => String::from("error on inserting into database"),
String::from(match err {
DatabaseError::InsertError => "error on inserting into database",
DatabaseError::InsertGetError => {
String::from("error on retrieving new entry from database (your entry was saved)")
"error on retrieving new entry from database (your entry was saved)"
}
DatabaseError::NotFound => String::from("model was not found in database"),
DatabaseError::DeleteError => String::from("error on deleting from database"),
DatabaseError::Protected => String::from("model is protected"),
DatabaseError::UpdateError => String::from("error on updating the model"),
DatabaseError::Unknown => String::from("unknown error"),
DatabaseError::NotFound => "model was not found in database",
DatabaseError::DeleteError => "error on deleting from database",
DatabaseError::Protected => "model is protected",
DatabaseError::UpdateError => "error on updating the model",
DatabaseError::UpdateGetError => {
"error on retrieving updated model from database (your entry was saved)"
}
DatabaseError::Unknown => "unknown error",
})
}
}

9
emgauwa-lib/src/db/mod.rs
View file

@ -34,10 +34,9 @@ async fn init_schedule(
periods: DbPeriods,
) -> Result<(), DatabaseError> {
trace!("Initializing schedule {:?}", name);
match DbSchedule::get_by_uid(&mut pool.acquire().await.unwrap(), uid).await {
Ok(_) => Ok(()),
Err(err) => match err {
DatabaseError::NotFound => {
match DbSchedule::get_by_uid(&mut pool.acquire().await.unwrap(), uid).await? {
Some(_) => Ok(()),
None => {
trace!("Schedule {:?} not found, inserting", name);
sqlx::query_as!(
DbSchedule,
@ -51,8 +50,6 @@ async fn init_schedule(
.ok_or(DatabaseError::InsertGetError)
.map(|_| ())
}
_ => Err(err),
},
}
}

25
emgauwa-lib/src/db/relays.rs
View file

@ -25,27 +25,30 @@ impl DbRelay {
.await?)
}
pub async fn get(conn: &mut PoolConnection<Sqlite>, id: i64) -> Result<DbRelay, DatabaseError> {
pub async fn get(
conn: &mut PoolConnection<Sqlite>,
id: i64,
) -> Result<Option<DbRelay>, DatabaseError> {
Ok(
sqlx::query_as!(DbRelay, "SELECT * FROM relays WHERE id = ?", id)
.fetch_optional(conn.deref_mut())
.await
.map(|s| s.ok_or(DatabaseError::NotFound))?
.await?,
)
}
pub async fn get_by_controller_and_num(
conn: &mut PoolConnection<Sqlite>,
controller: &DbController,
number: i64,
) -> Result<DbRelay, DatabaseError> {
sqlx::query_as!(
) -> Result<Option<DbRelay>, DatabaseError> {
Ok(sqlx::query_as!(
DbRelay,
"SELECT * FROM relays WHERE controller_id = ? AND number = ?",
controller.id,
number
)
.fetch_optional(conn.deref_mut())
.await
.map(|s| s.ok_or(DatabaseError::NotFound))?
.await?)
}
pub async fn get_by_tag(
@ -102,14 +105,18 @@ impl DbRelay {
.execute(conn.deref_mut())
.await?;
DbRelay::get(conn, self.id).await
DbRelay::get(conn, self.id)
.await?
.ok_or(DatabaseError::UpdateGetError)
}
pub async fn get_controller(
&self,
conn: &mut PoolConnection<Sqlite>,
) -> Result<DbController, DatabaseError> {
DbController::get(conn, self.controller_id).await
DbController::get(conn, self.controller_id)
.await?
.ok_or(DatabaseError::NotFound)
}
pub async fn get_tags(

22
emgauwa-lib/src/db/schedules.rs
View file

@ -27,25 +27,26 @@ impl DbSchedule {
pub async fn get_all(
conn: &mut PoolConnection<Sqlite>,
) -> Result<Vec<DbSchedule>, DatabaseError> {
Ok(sqlx::query_as!(DbSchedule, "SELECT * FROM schedules")
sqlx::query_as!(DbSchedule, "SELECT * FROM schedules")
.fetch_all(conn.deref_mut())
.await?)
.await
.map_err(DatabaseError::from)
}
pub async fn get(
conn: &mut PoolConnection<Sqlite>,
id: i64,
) -> Result<DbSchedule, DatabaseError> {
) -> Result<Option<DbSchedule>, DatabaseError> {
sqlx::query_as!(DbSchedule, "SELECT * FROM schedules WHERE id = ?", id)
.fetch_optional(conn.deref_mut())
.await
.map(|s| s.ok_or(DatabaseError::NotFound))?
.map_err(DatabaseError::from)
}
pub async fn get_by_uid(
conn: &mut PoolConnection<Sqlite>,
filter_uid: &ScheduleUid,
) -> Result<DbSchedule, DatabaseError> {
) -> Result<Option<DbSchedule>, DatabaseError> {
sqlx::query_as!(
DbSchedule,
"SELECT * FROM schedules WHERE uid = ?",
@ -53,16 +54,17 @@ impl DbSchedule {
)
.fetch_optional(conn.deref_mut())
.await
.map(|s| s.ok_or(DatabaseError::NotFound))?
.map_err(DatabaseError::from)
}
pub async fn get_by_tag(
conn: &mut PoolConnection<Sqlite>,
tag: &DbTag,
) -> Result<Vec<DbSchedule>, DatabaseError> {
Ok(sqlx::query_as!(DbSchedule, "SELECT schedule.* FROM schedules AS schedule INNER JOIN junction_tag ON junction_tag.schedule_id = schedule.id WHERE junction_tag.tag_id = ?", tag.id)
sqlx::query_as!(DbSchedule, "SELECT schedule.* FROM schedules AS schedule INNER JOIN junction_tag ON junction_tag.schedule_id = schedule.id WHERE junction_tag.tag_id = ?", tag.id)
.fetch_all(conn.deref_mut())
.await?)
.await
.map_err(DatabaseError::from)
}
pub async fn delete_by_uid(
@ -123,7 +125,9 @@ impl DbSchedule {
.execute(conn.deref_mut())
.await?;
DbSchedule::get(conn, self.id).await
DbSchedule::get(conn, self.id)
.await?
.ok_or(DatabaseError::UpdateGetError)
}
pub async fn get_tags(

18
emgauwa-lib/src/db/tag.rs
View file

@ -35,32 +35,34 @@ impl DbTag {
.ok_or(DatabaseError::InsertGetError)
}
pub async fn get(conn: &mut PoolConnection<Sqlite>, id: i64) -> Result<DbTag, DatabaseError> {
pub async fn get(
conn: &mut PoolConnection<Sqlite>,
id: i64,
) -> Result<Option<DbTag>, DatabaseError> {
sqlx::query_as!(DbTag, "SELECT * FROM tags WHERE id = ?", id)
.fetch_optional(conn.deref_mut())
.await
.map(|t| t.ok_or(DatabaseError::NotFound))?
.map_err(DatabaseError::from)
}
pub async fn get_by_tag_or_create(
conn: &mut PoolConnection<Sqlite>,
target_tag: &str,
) -> Result<DbTag, DatabaseError> {
match DbTag::get_by_tag(conn, target_tag).await {
Ok(tag) => Ok(tag),
Err(DatabaseError::NotFound) => DbTag::create(conn, target_tag).await,
Err(e) => Err(e),
match DbTag::get_by_tag(conn, target_tag).await? {
Some(tag) => Ok(tag),
None => DbTag::create(conn, target_tag).await,
}
}
pub async fn get_by_tag(
conn: &mut PoolConnection<Sqlite>,
target_tag: &str,
) -> Result<DbTag, DatabaseError> {
) -> Result<Option<DbTag>, DatabaseError> {
sqlx::query_as!(DbTag, "SELECT * FROM tags WHERE tag = ?", target_tag)
.fetch_optional(conn.deref_mut())
.await
.map(|t| t.ok_or(DatabaseError::NotFound))?
.map_err(DatabaseError::from)
}
pub async fn link_relay(

12
emgauwa-lib/src/handlers/v1/schedules.rs
View file

@ -39,7 +39,9 @@ pub async fn tagged(
let mut pool_conn = pool.acquire().await?;
let (tag,) = path.into_inner();
let tag_db = DbTag::get_by_tag(&mut pool_conn, &tag).await?;
let tag_db = DbTag::get_by_tag(&mut pool_conn, &tag)
.await?
.ok_or(DatabaseError::NotFound)?;
let schedules = DbSchedule::get_by_tag(&mut pool_conn, &tag_db).await?;
@ -61,7 +63,9 @@ pub async fn show(
let (schedule_uid,) = path.into_inner();
let uid = ScheduleUid::try_from(schedule_uid.as_str()).or(Err(ApiError::BadUid))?;
let schedule = DbSchedule::get_by_uid(&mut pool_conn, &uid).await?;
let schedule = DbSchedule::get_by_uid(&mut pool_conn, &uid)
.await?
.ok_or(DatabaseError::NotFound)?;
let return_schedule = Schedule::from_schedule(schedule, &mut pool_conn);
Ok(HttpResponse::Ok().json(return_schedule))
@ -136,7 +140,9 @@ pub async fn update(
let (schedule_uid,) = path.into_inner();
let uid = ScheduleUid::try_from(schedule_uid.as_str()).or(Err(ApiError::BadUid))?;
let schedule = DbSchedule::get_by_uid(&mut pool_conn, &uid).await?;
let schedule = DbSchedule::get_by_uid(&mut pool_conn, &uid)
.await?
.ok_or(DatabaseError::NotFound)?;
let schedule = schedule
.update(&mut pool_conn, data.name.as_str(), &data.periods)

3
emgauwa-lib/src/models/mod.rs
View file

@ -38,8 +38,7 @@ impl Schedule {
impl Relay {
pub fn from_db_relay(relay: db::DbRelay, conn: &mut PoolConnection<Sqlite>) -> Self {
let relay = relay.clone();
let controller =
executor::block_on(db::DbController::get(conn, relay.controller_id)).unwrap();
let controller = executor::block_on(relay.get_controller(conn)).unwrap();
let tags = executor::block_on(relay.get_tags(conn)).unwrap();
Relay {