How to add multiple errors if Messages functions take self ?

[HosMercury]

the first time adding to messages will consume it ? right ?

so what if I want to add multiple errors ?

error[E0382]: use of moved value: `messages`
   --> src/web/auth.rs:80:17
    |
67  |         messages: Messages,
    |         -------- move occurs because `messages` has type `axum_messages::Messages`, which does not implement the `Copy` trait
...
79  |                 messages.error("err 1");
    |                          -------------- `messages` moved due to this method call
80  |                 messages.error("err2");
    |                 ^^^^^^^^ value used here after move
    ```

[maxcountryman]

The idea here is that you'll use a "fluent" API most of the time. So following along with the example, we do something like:

messages.error("err 1").error("err 2");

[HosMercury]

so what if i am iterating over errors
and adding them one by one ?

[maxcountryman]

Each method returns self, so you can rebind the variable if you aren't able to use the fluent API directly. For instance, we can modify the example like so:

diff --git a/examples/basic.rs b/examples/basic.rs
index 19748d2..41df4ef 100644
--- a/examples/basic.rs
+++ b/examples/basic.rs
@@ -8,10 +8,10 @@ use axum::{
 use axum_messages::{Messages, MessagesManagerLayer};
 use tower_sessions::{MemoryStore, SessionManagerLayer};
 
-async fn set_messages_handler(messages: Messages) -> impl IntoResponse {
-    messages
-        .info("Hello, world!")
-        .debug("This is a debug message.");
+async fn set_messages_handler(mut messages: Messages) -> impl IntoResponse {
+    for message in ["foo", "bar"] {
+        messages = messages.info(message);
+    }
 
     Redirect::to("/read-messages")
 }

[HosMercury]

                validation_errs(errs).iter().for_each(|(_, err_value)| {
                    let m = err_value
                        .clone()
                        .message
                        .unwrap_or(Cow::Borrowed("Unknown validation error"));

                    // you just clone messages for each iteration of the loop
                    messages.error(m.to_string());
                });

Something like this