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@lazaronixon
lazaronixon / _form.html.erb
Last active September 22, 2025 15:08
Hotwire Event-Driven Update Pattern
<%= form_with model: citizen, class: "card flex flex-col gap", data: { controller: "form" } do |form| %>
<div class="flex flex-col gap mb-2">
<div class="flex flex-col gap-half">
<% countries = Country.order(:name) %>
<%= label_tag :country_id, "Country", class: "text-sm font-medium leading-none" %>
<%= select_tag :country_id, options_from_collection_for_select(countries, :id, :name, citizen.country_id), include_blank: "Select one", class: "input", data: { action: "form#submit", form_submitter_param: "on_country_change" } %>
</div>
<div class="flex flex-col gap-half">
<% states = State.where(country_id: citizen.country_id).order(:name) %>