app/views/shared/data/gis/_area_picker.html.erb
<div class="area_picker">
<div class="area_picker_alert" hidden></div>
<div class="area_selection">
<ul class="area_list"></ul>
<div>
<%= text_field_tag "area_picker_autocomplete", nil,
class: 'area_picker_autocomplete',
placeholder: "type to search for area",
data: { 'param-name' => :geographic_area_ids }
%>
</div>
</div>
</div>