start refactor

rust/src/models/user.rs

@@ -0,0 +1,45 @@
+use super::Error;
+use uuid::Uuid;
+
+#[derive(Debug, Clone)]
+pub struct User {
+    pub id: Uuid,
+    pub username: String,
+    pub fullname: String,
+}
+
+#[derive(Debug)]
+pub struct DbUserRow {
+    id: String,
+    username: String,
+    fullname: String,
+}
+
+impl TryFrom<DbUserRow> for User {
+    type Error = Error;
+
+    fn try_from(row: DbUserRow) -> Result<Self, Self::Error> {
+        Ok(User {
+            id: Uuid::try_parse(&row.id)?,
+            username: row.username,
+            fullname: row.fullname,
+        })
+    }
+}
+
+impl User {
+    pub async fn find_by_name(
+        pool: &sqlx::Pool<sqlx::Sqlite>,
+        name: &str,
+    ) -> Result<Option<Self>, Error> {
+        sqlx::query_as!(
+            DbUserRow,
+            "SELECT id,username,fullname FROM users WHERE username = ?",
+            name
+        )
+        .fetch_optional(pool)
+        .await?
+        .map(|row: DbUserRow| row.try_into())
+        .transpose()
+    }
+}