surrealdb/api/method/
use_ns.rs1use crate::api::conn::Command;
2use crate::api::method::BoxFuture;
3use crate::api::method::UseDb;
4use crate::api::Connection;
5use crate::api::Result;
6use crate::method::OnceLockExt;
7use crate::Surreal;
8use std::borrow::Cow;
9use std::future::IntoFuture;
10
11#[derive(Debug)]
13#[must_use = "futures do nothing unless you `.await` or poll them"]
14pub struct UseNs<'r, C: Connection> {
15 pub(super) client: Cow<'r, Surreal<C>>,
16 pub(super) ns: String,
17}
18
19impl<C> UseNs<'_, C>
20where
21 C: Connection,
22{
23 pub fn into_owned(self) -> UseNs<'static, C> {
25 UseNs {
26 client: Cow::Owned(self.client.into_owned()),
27 ..self
28 }
29 }
30}
31
32impl<'r, C> UseNs<'r, C>
33where
34 C: Connection,
35{
36 pub fn use_db(self, db: impl Into<String>) -> UseDb<'r, C> {
38 UseDb {
39 ns: self.ns.into(),
40 db: db.into(),
41 client: self.client,
42 }
43 }
44}
45
46impl<'r, Client> IntoFuture for UseNs<'r, Client>
47where
48 Client: Connection,
49{
50 type Output = Result<()>;
51 type IntoFuture = BoxFuture<'r, Self::Output>;
52
53 fn into_future(self) -> Self::IntoFuture {
54 Box::pin(async move {
55 let router = self.client.router.extract()?;
56 router
57 .execute_unit(Command::Use {
58 namespace: Some(self.ns),
59 database: None,
60 })
61 .await
62 })
63 }
64}