Macro ledb::query

macro_rules! query {
    (@$util:ident $($args:tt)*) => { ... };
    ($($tokens:tt)+) => { ... };
}

Unified query macro

#[macro_use] extern crate serde_derive;
#[macro_use] extern crate ledb;
use ledb::*;

#[derive(Serialize, Deserialize)]
struct MyDoc {
  field: String,
}

fn main() {
    let db_handle = Storage::open(".my_db").unwrap();
    let my_collection = db_handle.collection("my_collection").unwrap();

    // ensure index
    assert!(
        query!(index for my_collection
            field Int,
            other_field Binary,
            field.subfield String unique,
        ).is_ok()
    );

    // find query
    assert!(
        query!(find in my_collection where field == "abc").is_ok()
    );

    // find query with ascending ordering by field
    assert!(
        query!(find in my_collection where field == "abc" order by other.field).is_ok()
    );

    // find query with result document type with descending ordering by primary key
    assert!(
        query!(find MyDoc in my_collection where field == "abc" order ^).is_ok()
    );

    // update query
    assert!(
        query!(update in my_collection modify field = "def" where [field == "abc"]).is_ok()
    );

    // remove query
    assert!(
        query!(remove from my_collection where field == "def").is_ok()
    );
}