feat: fixup "add a DEBUG page to the UI with a database usage example"

crates/backend/src/api/debug.rs

@@ -0,0 +1,48 @@
+use axum::{extract::State, routing, Json};
+use sea_orm::*;
+use serde::Serialize;
+
+use ::entity::{debug, debug::Entity as DebugEntity};
+
+use crate::{AppError, AppState};
+
+// DATABASE DEBUG CONTROLLERS
+
+async fn get_debug_entries(db: &DatabaseConnection) -> Result<Vec<debug::Model>, DbErr> {
+    DebugEntity::find().all(db).await
+}
+
+async fn add_random_debug_entry(State(AppState { db_connection }): State<AppState>) {
+    let random_entry = debug::ActiveModel {
+        title: Set("Random title".to_string()),
+        text: Set("Random text".to_string()),
+        ..Default::default()
+    };
+    random_entry.insert(&db_connection).await.unwrap();
+}
+
+// API HANDLER
+
+#[derive(Serialize, Debug)]
+struct DebugResponse {
+    db_ping_status: bool,
+    entries: Vec<debug::Model>,
+}
+
+#[axum::debug_handler]
+async fn debug(
+    State(AppState { db_connection }): State<AppState>,
+) -> Result<Json<DebugResponse>, AppError> {
+    let db_ping_status = db_connection.ping().await.is_ok();
+    let debug_entries = get_debug_entries(&db_connection).await?;
+    Ok(Json(DebugResponse {
+        db_ping_status,
+        entries: debug_entries,
+    }))
+}
+
+pub fn get_routes() -> axum::Router<crate::AppState> {
+    axum::Router::new()
+        .route("/", routing::get(debug))
+        .route("/add_random", routing::post(add_random_debug_entry))
+}