{% load form_helpers %}

{% if form.fieldsets %}

  {# Render hidden fields #}
  {% for field in form.hidden_fields %}
    {{ field }}
  {% endfor %}

  {# Render grouped fields according to Form #}
  {% for group, fields in form.fieldsets %}
    <div class="field-group mb-5">
      {% if group %}
        <div class="row mb-2">
          <h5 class="offset-sm-3">{{ group }}</h5>
        </div>
      {% endif %}
      {% for name in fields %}
        {% with field=form|getfield:name %}
          {% if field and not field.field.widget.is_hidden %}
            {% render_field field %}
          {% endif %}
        {% endwith %}
      {% endfor %}
    </div>
  {% endfor %}

  {% if form.custom_fields %}
    <div class="field-group mb-5">
      <div class="row mb-2">
        <h5 class="offset-sm-3">Custom Fields</h5>
      </div>
      {% render_custom_fields form %}
    </div>
  {% endif %}

  {% if form.comments %}
    <div class="field-group mb-5">
      {% render_field form.comments %}
    </div>
  {% endif %}

{% else %}

  {# Render all fields in a single group #}
  <div class="field-group mb-5">
    {% render_form form %}
  </div>

{% endif %}