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Prevent duplicated posts in 'all' timeline

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Kitaiti Makoto 2021-03-29 23:33:57 +09:00
parent dd932e1f15
commit 4c2cd92f0d
1 changed files with 13 additions and 0 deletions
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13
plume-models/src/timeline/mod.rs
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@ -223,6 +223,9 @@ impl Timeline {
}
pub fn add_post(&self, conn: &Connection, post: &Post) -> Result<()> {
if self.includes_post(conn, post)? {
return Ok(());
}
diesel::insert_into(timeline::table)
.values(TimelineEntry {
post_id: post.id,
@ -236,6 +239,16 @@ impl Timeline {
let query = TimelineQuery::parse(&self.query)?;
query.matches(conn, self, post, kind)
}
fn includes_post(&self, conn: &Connection, post: &Post) -> Result<bool> {
diesel::dsl::select(diesel::dsl::exists(
timeline::table
.filter(timeline::timeline_id.eq(self.id))
.filter(timeline::post_id.eq(post.id)),
))
.get_result(conn)
.map_err(Error::from)
}
}
#[cfg(test)]