{% macro render_field_with_errors(field, type) %}
<div class="form-group{% if field.errors %} has-error{% endif %}">
  <input class="form-control" placeholder="{{ field.label.text }}" name="{{ field.name }}" type="{{ type }}">
</div>
{% if field.errors %}
{% for error in field.errors %}
<span class="help-block">{{ error }}</span>
{% endfor %}
{% endif %}
{% endmacro %}