pallet

A searchable document datastore built on sled and tantivy.

Provides a typed-tree interface to a sled database, with standard datastore ops (find, create, update, delete), but also Lucene/Elasticsearch style searching.

The included pallet_macros crate provides an easy way to derive pallet::DocumentLike for data structs.

Usage

```rust

[macro_use]

extern crate serde;

[derive(Serialize, Deserialize, Debug, pallet::DocumentLike)]

[pallet(tree_name = "books")]

pub struct Book { #[pallet(defaultsearchfield)] title: String, #[pallet(defaultsearchfield)] description: Option, #[pallet(indexfieldtype = "u64")] rating: u8, }

fn main() -> Result<(), Box> { let tempdir = tempfile::TempDir::newin(".")?;

let db = sled::open(temp_dir.path().join("db"))?;

let store = pallet::Store::builder().with_db(db).with_index_dir(temp_dir.path()).finish()?;

let books = vec![
    Book {
        title: "The Old Man and the Sea".into(),
        description: Some(
            "He was an old man who fished alone in a skiff in \
        the Gulf Stream and he had gone eighty-four days \
        now without taking a fish."
                .into(),
        ),
        rating: 10,
    },
    Book {
        title: "The Great Gatsby".into(),
        description: Some("About a man and some other stuff".into()),
        rating: 8,
    },
];

let _ = store.create_multi(&books)?;

let books = store.search("man AND rating:>8")?;

println!("{:?}", books);

Ok(())

} ```

pallet_macros

See the example for usage. The following attributes can be used to customize the implementation:

• tree_name: A container level attribute to specify the sled::Tree name.
• index_field_name: Rename the field in the search schema.
• index_field_type: Set the index field type, must implement Into<tantivy::schema::Value>.
• index_field_options: Set the index field options. By default, the options for String is tantivy::schema::TEXT, and the options for numeric types is tantivy::schema::INDEXED.
• default_search_field: Include this field in the list of default search fields.
• skip_indexing: Do not index this field.

Changelog

0.5.0

• Add Deref to inner type on Document
• Make index writer persistent

0.4.0

• Add various builders.
• Split out index and tree functionality.
• Set up search::Searcher trait and other search helpers.

0.3.2

• Add some docs

0.3.0

• Add pallet_macros to derive pallet::DocumentLike

Current version: 0.5.1

License: MIT