_form.html.erb

<%= form_with(model: [:admin, @account, @label], local: true) do |form| %>
  <% if label.errors.any? %>
   <div class="alert alert-danger">
      <h2><%= pluralize(@label.errors.count, "error") %> prohibited this label from being saved:</h2>
      <ul>
        <% @label.errors.full_messages.each do |message| %>
          <li><%= message %></li>
        <% end %>
      </ul>
    </div>
  <% end %>

  <%= form.label :key, class: 'control-label'%>
  <%= form.text_field :key, class: 'form-control col-sm-10'%>
  <br>

  <%= form.label :value, class: 'control-label'%>
  <%= form.text_field :value, class: 'form-control col-sm-10'%>
  <br>

  <%= form.label :scope, class: 'control-label'%>
  <%= form.select :scope, Label::SCOPES , class: 'form-control col-sm-10'%>
  <br>

  <%= form.submit 'Submit', class: 'btn btn-primary' %>

  <br>
  <br>

<% end %>