added get endpoint, updated state_management

entity/src/account.rs

@@ -1,7 +1,7 @@
 //! `SeaORM` Entity. Generated by sea-orm-codegen 0.11.3
 
 use futures::Stream;
-use sea_orm::{entity::prelude::*, QueryOrder, QuerySelect};
+use sea_orm::{entity::prelude::*, QueryOrder, QuerySelect, Statement};
 
 #[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
 #[sea_orm(table_name = "account")]
@@ -86,4 +86,20 @@ impl Entity {
             .await?;
         Ok(())
     }
+
+    /// Gets a name by a hex of a SHA256 hash of the name
+    pub async fn get_name_by_hash(
+        user_id: u64,
+        hash: String,
+        db: &DatabaseConnection,
+    ) -> crate::Result<Option<String>> {
+        db.query_one(Statement::from_sql_and_values(
+            sea_orm::DatabaseBackend::MySql,
+            "SELECT `name` FROM `account` WHERE SHA2(`name`, 256) = ? AND `user_id` = ?;",
+            [hash.into(), user_id.into()],
+        ))
+        .await?
+        .map(|result| result.try_get_by_index(0))
+        .transpose()
+    }
 }