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feat: impl cqrs_es::Query for CategoryView

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Aravinth Manivannan 2024-07-15 17:58:01 +05:30
parent e3fb0f775d
commit e22e4ff5fb
Signed by: realaravinth
GPG key ID: F8F50389936984FF
1 changed files with 19 additions and 5 deletions
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24
src/inventory/adapters/output/db/postgres/category_view.rs
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@ -3,7 +3,6 @@
// SPDX-License-Identifier: AGPL-3.0-or-later
use async_trait::async_trait;
use cqrs_es::persist::GenericQuery;
use cqrs_es::persist::{PersistenceError, ViewContext, ViewRepository};
use cqrs_es::{EventEnvelope, Query, View};
use serde::{Deserialize, Serialize};
@ -179,7 +178,22 @@ impl Query<Category> for SimpleLoggingQuery {
}
}
// Our second query, this one will be handled with Postgres `GenericQuery`
// which will serialize and persist our view after it is updated. It also
// provides a `load` method to deserialize the view on request.
pub type CategoryQuery = GenericQuery<InventoryDBPostgresAdapter, CategoryView, Category>;
#[async_trait]
impl Query<Category> for InventoryDBPostgresAdapter {
async fn dispatch(&self, category_id: &str, events: &[EventEnvelope<Category>]) {
let res = self
.load_with_context(&category_id)
.await
.unwrap_or_else(|_| {
Some((
CategoryView::default(),
ViewContext::new(category_id.into(), 0),
))
});
let (mut view, view_context): (CategoryView, ViewContext) = res.unwrap();
for event in events {
view.update(event);
}
self.update_view(view, view_context).await.unwrap();
}
}