add mail

src/model/role.rs

@@ -14,4 +14,32 @@ impl Role {
             .await
             .unwrap()
     }
+
+    pub async fn find_by_id(db: &SqlitePool, name: i32) -> Option<Self> {
+        sqlx::query_as!(
+            Self,
+            "
+SELECT id, name
+FROM role 
+WHERE id like ?
+        ",
+            name
+        )
+        .fetch_one(db)
+        .await
+        .ok()
+    }
+
+    pub async fn mails_from_role(&self, db: &SqlitePool) -> Vec<String> {
+        let query = format!(
+            "SELECT u.mail
+         FROM user u
+         JOIN user_role ur ON u.id = ur.user_id
+         JOIN role r ON ur.role_id = r.id
+         WHERE r.id = {}",
+            self.id
+        );
+
+        sqlx::query_scalar(&query).fetch_all(db).await.unwrap()
+    }
 }