{% macro render_form(form, action='') %}
{{ form.hidden_tag() }} {% for field in form %} {% if not field.flags.hidden %} {{ render_field(field) }} {% endif %} {% endfor %}
{% endmacro %} {% macro render_field(field) %}
{{ field(class_="form-control")|safe }} {% if field.errors %} {% for error in field.errors %} {{ error }} {% endfor %} {% endif %}
{% endmacro %}