AyuntamientoMadrid/participacion

<button type="button" data-toggle="related_content" class="add-related-content">
  <%= t("related_content.add") %>
</button>

<%= form_tag related_contents_path, method: :post, id: "related_content", "data-toggler": "unused-toggle-class" do %>
  <label for="url"><%= t("related_content.label") %></label>

  <p class="help-text" id="related_content_help_text">
    <%= t("related_content.help", models: t("related_content.content_title").values.to_sentence, org: setting["org_name"]) %>
  </p>

  <div class="input-group">
    <div class="input-group-field">
      <%= text_field_tag :url, "",
                         "aria-describedby": "related_content_help_text",
                         placeholder: t("related_content.placeholder", url: root_url) %>

      <%= hidden_field_tag :relationable_klass, relationable.class.name %>
      <%= hidden_field_tag :relationable_id, relationable.id %>
    </div>

    <div class="input-group-button">
      <%= submit_tag t("related_content.submit"), class: "button" %>
    </div>
  </div>
<% end %>