app/views/encounters_supports/index.html.erb
<div class="text-center">
<h1 class="h3 mb-0 font-weight-bold">
Nutzer und Begegnungen einsehen
</h1>
</div>
<div class="row justify-content-center">
<div class="col-lg-5">
<%= form_with(url: encounters_supports_validate_path, local: true) do |f| %>
<div class="row">
<div class="col">
<div class="form-group">
<label for="description">Support-ID *</label>
<%= f.text_field :support_id, required: true, class: "form-control" %>
</div>
</div>
</div>
<div class="row justify-content-center mt-3 pb-4">
<%= f.submit "Daten jetzt anzeigen", class: "btn btn-primary" %>
</div>
<% end %>
</div>
</div>