core/templates/layout/select.html.tpl

{{define "select"}}
<div class="form-group">
  <label class="control-label" for="{{.options.id}}">{{.options.label}}</label>
  <select name="{{.options.name}}"
          class="form-control selectpicker"
          id="{{.options.id}}"
          placeholder="{{.options.placeholder}}"
          data-live-search="true"
          form="{{.form}}"
          title="{{.options.title}}"
          data-dropup-auto="false" {{if .options.multiple}}multiple{{end}}>
    <option value="0"></option>
    {{range $el := .data}}
    {{if $.update}}
    <option
      value="{{$el.ID}}"
      {{index $.selected $el.ID}}>{{$el|string}}
    </option>
    {{else}}
    <option value="{{$el.ID}}">{{$el|string}}</option>
    {{end}}
    {{end}}
  </select>
</div>
{{end}}