1#[macro_export]
2macro_rules! auto_method {
3 ($name:ident($selector_t:ty as i64)@$select_fn:ident -> $query:literal --name=$name_:literal --returns=$returns_:tt --cache-key-tmpl=$cache_key_tmpl:literal) => {
4 pub async fn $name(&self, selector: $selector_t) -> Result<$returns_> {
5 if let Some(cached) = self
6 .0
7 .1
8 .get(format!($cache_key_tmpl, selector.to_string()))
9 .await
10 {
11 match serde_json::from_str(&cached) {
12 Ok(x) => return Ok(x),
13 Err(_) => {
14 self.0
15 .1
16 .remove(format!($cache_key_tmpl, selector.to_string()))
17 .await
18 }
19 };
20 }
21
22 let conn = match self.0.connect().await {
23 Ok(c) => c,
24 Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
25 };
26
27 let res = oiseau::query_row!(&conn, $query, &[&(selector as i64)], |x| {
28 Ok(Self::$select_fn(x))
29 });
30
31 if res.is_err() {
32 return Err(Error::GeneralNotFound($name_.to_string()));
33 }
34
35 let x = res.unwrap();
36 self.0
37 .1
38 .set(
39 format!($cache_key_tmpl, selector),
40 serde_json::to_string(&x).unwrap(),
41 )
42 .await;
43
44 Ok(x)
45 }
46 };
47
48 ($name:ident($x:ty) -> $query:literal --serde --cache-key-tmpl=$cache_key_tmpl:literal) => {
49 pub async fn $name(&self, id: usize, x: $x) -> Result<()> {
50 let conn = match self.0.connect().await {
51 Ok(c) => c,
52 Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
53 };
54
55 let res = execute!(
56 &conn,
57 $query,
58 params![&serde_json::to_string(&x).unwrap(), &(id as i64)]
59 );
60
61 if let Err(e) = res {
62 return Err(Error::DatabaseError(e.to_string()));
63 }
64
65 self.0.1.remove(format!($cache_key_tmpl, id)).await;
66
67 Ok(())
68 }
69 };
70}