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Moved a batch update into a db transaction.

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This commit is contained in:
Jordan Petridis 2017-10-31 13:10:36 +02:00
parent 893218346d
commit c942e357b7
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GPG Key ID: CEABAD9F5683B9A6
1 changed files with 9 additions and 13 deletions
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22
hammond-data/src/dbqueries.rs
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@ -7,7 +7,9 @@ use index_feed::Database;
use errors::*;
use chrono::prelude::*;
// TODO: Needs cleanup.
/// Random db querries helper functions.
/// Probably needs cleanup.
pub fn get_sources(con: &SqliteConnection) -> QueryResult<Vec<Source>> {
use schema::source::dsl::*;
@ -23,14 +25,6 @@ pub fn get_podcasts(con: &SqliteConnection) -> QueryResult<Vec<Podcast>> {
pds
}
// Maybe later.
// pub fn get_podcasts_ids(con: &SqliteConnection) -> QueryResult<Vec<i32>> {
// use schema::podcast::dsl::*;
// let pds = podcast.select(id).load::<i32>(con);
// pds
// }
pub fn get_episodes(con: &SqliteConnection) -> QueryResult<Vec<Episode>> {
use schema::episode::dsl::*;
@ -177,14 +171,16 @@ pub fn delete_podcast_episodes(connection: &SqliteConnection, parent_id: i32) ->
Ok(())
}
// TODO: make it transaction.
pub fn update_none_to_played_now(connection: &SqliteConnection, parent: &Podcast) -> Result<()> {
use schema::episode::dsl::*;
let epoch_now = Utc::now().timestamp() as i32;
diesel::update(Episode::belonging_to(parent).filter(played.is_null()))
.set(played.eq(Some(epoch_now)))
.execute(connection)?;
connection.transaction(|| -> Result<()> {
diesel::update(Episode::belonging_to(parent).filter(played.is_null()))
.set(played.eq(Some(epoch_now)))
.execute(connection)?;
Ok(())
})?;
Ok(())
}