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Storage::get_parameterized_replaceable_event()

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This commit is contained in:
Mike Dilger 2023-08-13 12:30:59 +12:00
parent c0451cd757
commit e1d6b18c22
1 changed files with 25 additions and 1 deletions
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26
src/storage/mod.rs
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@ -15,7 +15,8 @@ use lmdb::{
Transaction, WriteFlags,
};
use nostr_types::{
EncryptedPrivateKey, Event, EventKind, Id, MilliSatoshi, PublicKey, RelayUrl, Unixtime,
EncryptedPrivateKey, Event, EventAddr, EventKind, Id, MilliSatoshi, PublicKey, RelayUrl,
Unixtime,
};
use speedy::{Readable, Writable};
use std::collections::{HashMap, HashSet};
@ -936,6 +937,29 @@ impl Storage {
Ok(true)
}
pub fn get_parameterized_replaceable_event(
&self,
event_addr: &EventAddr,
) -> Result<Option<Event>, Error> {
if !event_addr.kind.is_parameterized_replaceable() {
return Err(ErrorKind::General(
"Invalid EventAddr, kind is not parameterized replaceable.".to_owned(),
)
.into());
}
let mut events = self.find_events(
&[event_addr.kind],
&[event_addr.author],
None, // any time
|e| e.parameter().as_ref() == Some(&event_addr.d),
true, // sorted in reverse time order
)?;
let maybe_event = events.drain(..).take(1).next();
Ok(maybe_event)
}
pub fn replace_parameterized_event<'a>(
&'a self,
event: &Event,