app/views/events/edit.html.erb
<div class="d-flex flex-wrap align-items-center row-gap justify-content-center mb-5">
<h1 class="h3 mb-0 pb-0 font-weight-bold mr-3">Veranstaltung bearbeiten</h1>
<button id="trigger-copy-button" class="btn btn-sm btn-primary shadow-sm">
<i class="fas fa-plus fa-sm text-white-50"></i>
Kopie erstellen
</button>
</div>
<div class="row justify-content-center">
<div class="col-lg-8">
<%= form_with( url: event_path(@event.id), method: :patch, local: true) do %>
<%= render partial: "events/form", locals: { event: @event } %>
<% end %>
</div>
</div>
<script>
$('#trigger-copy-button').on('click', function(e) {
e.preventDefault();
$('#real-copy-button').click();
});
</script>