A VERY simple macro for rendering WTForms Fields in a bootstrap template

__formhelper.html

  {% macro render_field(field) %}
  <div {% if field.errors %}class="control-group error"{% else %}class="control-group"{% endif %}>
      {% if field.name != "id" %}
      <label class="control-label">{{ field.label }}</label>
      {% endif %}
      <div class="controls">
          {{ field(**kwargs)|safe }}
          {% if field.errors %}
          {% for error in field.errors %}
          <span class="help-inline">{{ error }}</span>
          {% endfor %}
      {% endif %}
      </div>
  </div>
  {% endmacro %}