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dbquerries: Fix the is_populated() querries.

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Thanks a lot to the diesel gittrer channel!
This commit is contained in:
Jordan Petridis 2018-04-19 14:45:00 +03:00
parent 736a993284
commit 37a408e58a
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GPG Key ID: CEABAD9F5683B9A6
1 changed files with 7 additions and 34 deletions
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41
hammond-data/src/dbqueries.rs
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@ -5,6 +5,7 @@ use diesel::prelude::*;
use diesel; use diesel;
use diesel::dsl::exists; use diesel::dsl::exists;
use diesel::query_builder::AsQuery;
use diesel::select; use diesel::select;
use database::connection; use database::connection;
@ -349,59 +350,31 @@ pub(crate) fn episode_exists(title_: &str, podcast_id_: i32) -> Result<bool, Dat
.map_err(From::from) .map_err(From::from)
} }
/// Check `episode` table empty /// Check if the `episode table contains any rows
/// ///
// FIXME: Return true if `episode` table is populated. /// Return true if `episode` table is populated.
pub fn is_episodes_populated() -> Result<bool, DataError> { pub fn is_episodes_populated() -> Result<bool, DataError> {
use schema::episode::dsl::*; use schema::episode::dsl::*;
let db = connection(); let db = connection();
let con = db.get()?; let con = db.get()?;
// FIXME select(exists(episode.as_query()))
// select(exists(select(episode)))
// .get_result(&con)
// .map_err(From::from)
episode
.count()
.get_result(&con) .get_result(&con)
// FIXME: fix the diesel querry
.map(|b: i64| {
if b == 0 {
false
} else {
true
}
})
.map_err(From::from) .map_err(From::from)
} }
/// Check `episode` table empty /// Check if the `podcast` table contains any rows
/// ///
// FIXME: Return true if `episode` table is populated. /// Return true if `podcast table is populated.
pub fn is_podcasts_populated() -> Result<bool, DataError> { pub fn is_podcasts_populated() -> Result<bool, DataError> {
use schema::podcast::dsl::*; use schema::podcast::dsl::*;
let db = connection(); let db = connection();
let con = db.get()?; let con = db.get()?;
// FIXME select(exists(podcast.as_query()))
// select(exists(select(podcast)))
// .get_result(&con)
// .map_err(From::from)
podcast
.count()
.get_result(&con) .get_result(&con)
// FIXME: fix the diesel querry
.map(|b: i64| {
if b == 0 {
false
} else {
true
}
})
.map_err(From::from) .map_err(From::from)
} }