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Get previous_interval from LastRevlogInfo

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user1823 2025-09-25 19:34:05 +05:30 committed by GitHub
parent dd78285785
commit 624b59690c
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1 changed files with 13 additions and 5 deletions
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18
rslib/src/scheduler/fsrs/memory_state.rs
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@ -136,11 +136,10 @@ impl Collection {
let deckconfig_id = deck.config_id().unwrap();
// reschedule it
let original_interval = card.interval;
// This should ideally use lastIvl from latest revlog.
// days_elapsed is used for performance reasons.
let greater_than_last = |interval: u32| {
if interval > days_elapsed as u32 {
days_elapsed as u32 + 1
let previous_interval = last_info.previous_interval as u32
if interval > previous_interval {
previous_interval + 1
} else {
0
}
@ -319,6 +318,9 @@ pub(crate) struct LastRevlogInfo {
/// reviewed the card and now, so that we can determine an accurate period
/// when the card has subsequently been rescheduled to a different day.
pub(crate) last_reviewed_at: Option<TimestampSecs>,
/// The interval before the latest review. Used to prevent fuzz from going
/// backwards when rescheduling the card
pub(crate) previous_interval: Option<u32>,
}
/// Return a map of cards to info about last review.
@ -330,14 +332,20 @@ pub(crate) fn get_last_revlog_info(revlogs: &[RevlogEntry]) -> HashMap<CardId, L
.into_iter()
.for_each(|(card_id, group)| {
let mut last_reviewed_at = None;
let mut previous_interval = None;
for e in group.into_iter() {
if e.has_rating_and_affects_scheduling() {
last_reviewed_at = Some(e.id.as_secs());
previous_interval = Some(e.last_interval);
} else if e.is_reset() {
last_reviewed_at = None;
previous_interval = None;
}
}
out.insert(card_id, LastRevlogInfo { last_reviewed_at });
out.insert(card_id, LastRevlogInfo {
last_reviewed_at,
previous_interval,
});
});
out
}