#[macro_export]
macro_rules! auto_method {
($name:ident($selector_t:ty as i64)@$select_fn:ident -> $query:literal --name=$name_:literal --returns=$returns_:tt --cache-key-tmpl=$cache_key_tmpl:literal) => {
pub async fn $name(&self, selector: $selector_t) -> Result<$returns_> {
if let Some(cached) = self
.0
.1
.get(format!($cache_key_tmpl, selector.to_string()))
.await
{
match serde_json::from_str(&cached) {
Ok(x) => return Ok(x),
Err(_) => {
self.0
.1
.remove(format!($cache_key_tmpl, selector.to_string()))
.await
}
};
}
let conn = match self.0.connect().await {
Ok(c) => c,
Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
};
let res = oiseau::query_row!(&conn, $query, &[&(selector as i64)], |x| {
Ok(Self::$select_fn(x))
});
if res.is_err() {
return Err(Error::GeneralNotFound($name_.to_string()));
}
let x = res.unwrap();
self.0
.1
.set(
format!($cache_key_tmpl, selector),
serde_json::to_string(&x).unwrap(),
)
.await;
Ok(x)
}
};
($name:ident($x:ty) -> $query:literal --serde --cache-key-tmpl=$cache_key_tmpl:literal) => {
pub async fn $name(&self, id: usize, x: $x) -> Result<()> {
let conn = match self.0.connect().await {
Ok(c) => c,
Err(e) => return Err(Error::DatabaseConnection(e.to_string())),
};
let res = execute!(
&conn,
$query,
params![&serde_json::to_string(&x).unwrap(), &(id as i64)]
);
if let Err(e) = res {
return Err(Error::DatabaseError(e.to_string()));
}
self.0.1.remove(format!($cache_key_tmpl, id)).await;
Ok(())
}
};
}