Layout attribute

[eelcoj]

Feature request

I want to check how you feel about adding support for a "layout" attribute in ViewComponent. This should work similarly to Rails partials' layout attribute:

<%= render partial: "user", layout: "shared/admin" %>

This would wrap the user partial with app/views/shared/_admin.html.erb.

For ViewComponent this could be:

<%= render(UserComponent.new(user: @user, layout: AdminComponent)) %>

Motivation

This would come in handy most often when rendering a collection. The ViewComponent renders the collection (eg. li, but not the wrapping element (eg. <ul>).

The only mention of this seems to be here: #198

if this sounds interesting, I am happy to spend some time on it.

[reeganviljoen]

@eelcoj, this is possible with current features, like the slot api for example

<%= render(AdminComponent.new()) do |c| %>
  <% c.with_body do %>
     <%= render(UserComponent.new(user: @user) %>
  <% end %> 
<% end %> 

all that said the example above is a lot more dense and could possibly benefit from a layout api, I would like to however ask @joelhawksley what his thoughts are.