fixes

src/database.rs

@@ -4,7 +4,7 @@ use log::{error, info};
 use sqlx::{migrate, pool, postgres::PgPoolOptions, query, query_as, PgPool, Pool, Postgres};
 use thiserror::Error;
 
-use crate::schemas::{TelemetryMessage, TelemetryMessageFromDevice, ValueMessageFromDevice, ValueMessage};
+use crate::schemas::{TelemetryMessage, TelemetryMessageFromDevice, ValueMessageFromDevice, ValueMessage, Device};
 
 #[derive(Clone)]
 pub struct Database {
@@ -140,4 +140,17 @@ impl Database {
 
         Ok(values)
     }
+
+    pub async fn get_devices(&self) -> Result<Vec<Device>, DatabaseError> {
+        info!("Getting all devices");
+        let devices = query_as!(
+            Device,
+            "SELECT id, display_name 
+            FROM Devices;",
+        )
+        .fetch_all(&self.conn_pool)
+        .await?;
+
+        Ok(devices)
+    }
 }