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Add support for placeholder search for empty queries

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This commit is contained in:
Kerollmops
2020-10-06 14:52:05 +02:00
committed by Clément Renault
parent 433d9bbc6e
commit a00f5850ee
4 changed files with 33 additions and 17 deletions
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14
src/lib.rs
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@ -14,6 +14,7 @@ use csv::StringRecord;
use fxhash::{FxHasher32, FxHasher64};
use heed::types::*;
use heed::{PolyDatabase, Database};
use roaring::RoaringBitmap;
pub use self::search::{Search, SearchResult};
pub use self::criterion::{Criterion, default_criteria};
@ -61,6 +62,10 @@ impl Index {
})
}
pub fn documents_ids(&self, rtxn: &heed::RoTxn) -> anyhow::Result<Option<RoaringBitmap>> {
Ok(self.main.get::<_, Str, RoaringBitmapCodec>(rtxn, DOCUMENTS_IDS_KEY)?)
}
pub fn put_headers(&self, wtxn: &mut heed::RwTxn, headers: &StringRecord) -> heed::Result<()> {
self.main.put::<_, Str, CsvStringRecordCodec>(wtxn, HEADERS_KEY, headers)
}
@ -114,10 +119,11 @@ impl Index {
}
/// Returns the number of documents indexed in the database.
pub fn number_of_documents<'t>(&self, rtxn: &'t heed::RoTxn) -> anyhow::Result<usize> {
let docids = self.main.get::<_, Str, RoaringBitmapCodec>(rtxn, DOCUMENTS_IDS_KEY)?
.with_context(|| format!("Could not find the list of documents ids"))?;
Ok(docids.len() as usize)
pub fn number_of_documents(&self, rtxn: &heed::RoTxn) -> anyhow::Result<usize> {
match self.documents_ids(rtxn)? {
Some(docids) => Ok(docids.len() as usize),
None => Ok(0),
}
}
pub fn search<'a>(&'a self, rtxn: &'a heed::RoTxn) -> Search<'a> {