Refactored the whole code to a better structure

project/migrations/2020-03-24-142210_users/src/schema.rs

@@ -1,8 +0,0 @@
-table! {
-    users (id) {
-        id -> Integer,
-        username -> Varchar,
-        is_admin -> Bool,
-        password_hash -> Varchar,
-    }
-}

project/migrations/2020-04-04-120638_create_users/up.sql

@@ -1,7 +1,8 @@
 CREATE TABLE users (
 	`id` int NOT NULL AUTO_INCREMENT,
 	`username` varchar(100) UNIQUE NOT NULL,
-	`is_admin` boolean NOT NULL,
-	`password_hash` varchar(128) NOT NULL,
+	`password` varchar(128) NOT NULL,
+	`admin` boolean NOT NULL,
+	`created_at` timestamp NOT NULL,
 	PRIMARY KEY (`id`)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8;