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fix transactions

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This commit is contained in:
Aiden McClelland
2021-03-17 19:49:06 -06:00
parent a12a93b035
commit 5a83aa5926
4 changed files with 328 additions and 90 deletions
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10
patch-db-derive-internals/src/lib.rs
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@@ -17,20 +17,22 @@ fn build_model_struct(input: &syn::DeriveInput, ast: &syn::DataStruct) -> TokenS
let base_name = &input.ident;
let model_vis = &input.vis;
quote! {
#model_vis struct #model_name<Tx: patch_db::Checkpoint> {
#model_vis struct #model_name<Parent: Model> {
data: Option<Box<#base_name>>,
lock_type: patch_db::LockType,
ptr: json_ptr::JsonPointer,
tx: Tx,
}
impl<Tx: patch_db::Checkpoint> #model_name<Tx> {
pub fn get(&mut self, lock: patch_db::LockType) -> Result<&#base_name, patch_db::Error> {
if let Some(data) = self.data.as_ref() {
match lock {
patch_db::LockType::None => Ok(data),
match (self.lock_type, lock) {
(patch_db::LockType::None, patch_db::LockType::Read) => Ok(data),
}
} else {
self.tx.get(&self.ptr, lock)
self.data = Some(Box::new(self.tx.get(&self.ptr, lock).await?));
Ok(self.data.as_ref().unwrap())
}
}
}