Implemented proper error handling, now we can do user.save($conn)?; and it works.

In the future, maybe we can do the same with the `find_by_id` methods that return an Option.

src/util.rs

@@ -1,50 +1,3 @@
-///
-/// Macros
-///
-#[macro_export]
-macro_rules! _err_object {
-    ($msg:expr) => {{
-        err_json!(json!({
-            "Message": "",
-            "error": "",
-            "error_description": "",
-            "ValidationErrors": {"": [ $msg ]},
-            "ErrorModel": {
-                "Message": $msg,
-                "Object": "error"
-            },
-            "Object": "error"
-        }))
-    }};
-}
-
-#[macro_export]
-macro_rules! err {
-    ($msg:expr) => {{
-        error!("{}", $msg);
-        _err_object!($msg)
-    }};
-    ($usr_msg:expr, $log_value:expr) => {{
-        error!("{}: {:#?}", $usr_msg, $log_value);
-        _err_object!($usr_msg)
-    }}
-}
-
-#[macro_export]
-macro_rules! err_json {
-    ($expr:expr) => {{
-        return Err(rocket::response::status::BadRequest(Some(rocket_contrib::json::Json($expr))));
-    }}
-}
-
-#[macro_export]
-macro_rules! err_handler {
-    ($expr:expr) => {{
-        error!("{}", $expr);
-        return rocket::Outcome::Failure((rocket::http::Status::Unauthorized, $expr));
-    }}
-}
-
 ///
 /// File handling
 ///