From 79cc28bfd8388593081ba51b3e1a7215ebaf8e66 Mon Sep 17 00:00:00 2001
From: realaravinth <realaravinth@batsense.net>
Date: Wed, 11 May 2022 13:09:37 +0530
Subject: [PATCH] feat: implement username exists for postgres via sqlx

---
 db/db-sqlx-postgres/src/lib.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/db/db-sqlx-postgres/src/lib.rs b/db/db-sqlx-postgres/src/lib.rs
index 0688db26..b29114d7 100644
--- a/db/db-sqlx-postgres/src/lib.rs
+++ b/db/db-sqlx-postgres/src/lib.rs
@@ -138,6 +138,24 @@ impl MCDatabase for Database {
             .map_err(map_register_err)?;
         Ok(())
     }
+
+    /// check if username exists
+    async fn username_exists(&self, username: &str) -> DBResult<bool> {
+        let res = sqlx::query!(
+            "SELECT EXISTS (SELECT 1 from mcaptcha_users WHERE name = $1)",
+            username,
+        )
+        .fetch_one(&self.pool)
+        .await
+        .map_err(map_register_err)?;
+
+        let mut resp = false;
+        if let Some(x) = res.exists {
+            resp = x;
+        }
+
+        Ok(resp)
+    }
 }
 
 fn now_unix_time_stamp() -> i64 {