material_admin-8.x-1.0-alpha7/templates/form/form-element--select.html.twig

{#
/**
 * @file
 * Theme override for a select form element.
 * This is it's own template to accomidate materializecss JS which requires specific HTML structure to work correctly
 *
 * @see template_preprocess_form_element()
 * @see form-element.html.twig for more variables
 */
#}
{%
  set classes = [
    'js-form-item',
    'form-item',
    'js-form-type-' ~ type|clean_class,
    'form-type-' ~ type|clean_class,
    'js-form-item-' ~ name|clean_class,
    'form-item-' ~ name|clean_class,
    select_default == 'false' ? 'input-field',
    select_default ? 'input-field-browser-default',
    label_display == 'none' ? 'form-no-label',
    label_display in ['after', 'before'] ? 'form-has-label',
    disabled == 'disabled' ? 'form-disabled',
    prefix and not suffix ? 'has-prefix',
    suffix and not prefix ?  'has-suffix',
    prefix and suffix ? 'has-prefix-and-suffix',
    errors ? 'form-item--error',
    children matches '/value="[^"]+"/' ? 'has-initial-content',
    children matches '/placeholder="[^"]+"/' ? 'has-placeholder',
    description_display == 'after' ? 'has-description-after',
]
%}
<div{{ attributes.addClass(classes) }}>
  {% if prefix is not empty %}
    <span class="field-prefix">{{ prefix }}</span>
  {% endif %}
  {% if description_display == 'before' and description.content %}
    <div{{ description.attributes }}>
      {{ description.content }}
    </div>
  {% endif %}
  {% if label_display and select_default %}
    {{ label }}
  {% endif %}
  {{ children }}
  {% if suffix is not empty %}
    <span class="field-suffix">{{ suffix }}</span>
  {% endif %}
  {% if label_display and not select_default %}
    {{ label }}
  {% endif %}
  {% if errors %}
    <div class="form-item--error-message">
      <strong>{{ errors }}</strong>
    </div>
  {% endif %}
  {% if description_display in ['after', 'invisible'] %}
    {% include '@material_admin/misc/description.html.twig' %}
  {% endif %}
</div>