Missing Trait Implementations for FlowBox and Potential Conflicts

[imgurbot12]

Hello, I'm enjoying the process of designing an app thus var with relm! However, I've run into an issue when looking for elements that might enable the option for more dynamic layouts like FlowBox.

When trying to place items within FlowBox like this example codeblock:

view! {
   ...
            #[name(overview)]
            gtk::FlowBox::builder()
                .css_classes(vec!["overview"])
                .build()
            {
                set_orientation: gtk::Orientation::Horizontal,
                set_spacing: 10,

                #[name(title)]
                gtk::Label::builder()
                    .label(&self.0.entry.name)
                    .css_classes(vec!["title"])
                    .build(),
                #[name(comment)]
                gtk::Label::builder()
                    .label(&self.0.entry.comment.clone().unwrap_or_else(|| "".to_owned()))
                    .css_classes(vec!["comment"])
                    .visible(self.0.comments)
                    .build(),
            },
   ...
}

rust comes back with the following errors:

error[E0599]: the method `container_add` exists for struct `FlowBox`, but its trait bounds were not satisfied
...
   | |_doesn't satisfy `FlowBox: RelmContainerExt`
   |   doesn't satisfy `FlowBox: RelmSetChildExt`
   |
   = note: the following trait bounds were not satisfied:
           `FlowBox: RelmSetChildExt`
           which is required by `FlowBox: RelmContainerExt`

I'm assuming this is because RelmContainerExt and RelmSetChildExt are not implemented for FlowBox. With little understanding of the codebase, I tried to implement them myself but it seems like there are potential conflicts in doing so:
https://github.com/Relm4/Relm4/blob/main/relm4/src/extensions/remove.rs#L11
https://github.com/Relm4/Relm4/blob/main/relm4/src/extensions/remove.rs#L30

I'm not sure how to proceed. Is it possible to use a FlowBox in the way I want to here? Any feedback is appreciated. Thanks!

[AaronErhardt]

Regarding this issue, you can read this section in the book: https://relm4.org/book/stable/tricks.html#method-container_add-is-missing

It sounds reasonable to me however, to implement RelmContainerExt for FlowBox using the append method, so you can keep this opened.

[imgurbot12]

Can't believe I missed that. Thanks again!