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Merge pull request #116 from Kerollmops/raw-field-value-getter

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Allow users to retrieve the raw field value of a document
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Clément Renault 2019-02-22 18:02:46 +01:00 committed by GitHub
commit 7a6b734078
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1 changed files with 14 additions and 1 deletions
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15
src/database/view.rs
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@ -89,8 +89,21 @@ where D: Deref<Target=DB>
QueryBuilder::new(self) QueryBuilder::new(self)
} }
pub fn raw_field_by_document_id(
&self,
name: &str,
id: DocumentId
) -> Result<Option<Vec<u8>>, Box<Error>>
{
let attr = self.schema.attribute(name).ok_or("field not found")?;
let key = DocumentKeyAttr::new(id, attr);
let vector = self.snapshot.get(key.as_ref())?;
Ok(vector.map(|v| v.to_vec()))
}
pub fn document_by_id<T>(&self, id: DocumentId) -> Result<T, Box<Error>> pub fn document_by_id<T>(&self, id: DocumentId) -> Result<T, Box<Error>>
where T: DeserializeOwned where T: DeserializeOwned,
{ {
let mut deserializer = Deserializer::new(&self.snapshot, &self.schema, id); let mut deserializer = Deserializer::new(&self.snapshot, &self.schema, id);
Ok(T::deserialize(&mut deserializer)?) Ok(T::deserialize(&mut deserializer)?)