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Introduce primary key methods on the index

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This commit is contained in:
Clément Renault 2020-10-31 11:28:48 +01:00
parent 0d01e4854b
commit ddbd336387
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1 changed files with 18 additions and 2 deletions
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20
src/index.rs
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@ -14,10 +14,11 @@ use crate::{
BoRoaringBitmapCodec, CboRoaringBitmapCodec,
};
pub const WORDS_FST_KEY: &str = "words-fst";
pub const FIELDS_IDS_MAP_KEY: &str = "fields-ids-map";
pub const DOCUMENTS_IDS_KEY: &str = "documents-ids";
pub const FIELDS_IDS_MAP_KEY: &str = "fields-ids-map";
pub const PRIMARY_KEY_KEY: &str = "primary-key";
pub const USERS_IDS_DOCUMENTS_IDS_KEY: &str = "users-ids-documents-ids";
pub const WORDS_FST_KEY: &str = "words-fst";
#[derive(Clone)]
pub struct Index {
@ -83,6 +84,21 @@ impl Index {
Ok(self.main.get::<_, Str, RoaringBitmapCodec>(rtxn, DOCUMENTS_IDS_KEY)?.unwrap_or_default())
}
/// Writes the documents primary key, this is the field name that is used to store the id.
pub fn put_primary_key(&self, wtxn: &mut heed::RwTxn, primary_key: u8) -> heed::Result<()> {
self.main.put::<_, Str, OwnedType<u8>>(wtxn, PRIMARY_KEY_KEY, &primary_key)
}
/// Delete the primary key of the documents, this can be done to reset indexes settings.
pub fn delete_primary_key(&self, wtxn: &mut heed::RwTxn) -> heed::Result<bool> {
self.main.delete::<_, Str>(wtxn, PRIMARY_KEY_KEY)
}
/// Returns the documents primary key, `None` if it hasn't been defined.
pub fn primary_key(&self, rtxn: &heed::RoTxn) -> heed::Result<Option<u8>> {
self.main.get::<_, Str, OwnedType<u8>>(rtxn, PRIMARY_KEY_KEY)
}
/// Writes the users ids documents ids, a user id is a byte slice (i.e. `[u8]`)
/// and refers to an internal id (i.e. `u32`).
pub fn put_users_ids_documents_ids<A: AsRef<[u8]>>(&self, wtxn: &mut heed::RwTxn, fst: &fst::Map<A>) -> heed::Result<()> {