{% macro alert(content, type=None, alert_header=None, close_button=True) -%}
  {# type can be success, error (or danger), info. Defaults to a warning style. #}
  <div class="alert
                {%- if alert_header %} alert-block{% endif -%}
                {%- if type %} alert-{{ type }}{% endif -%}
                {%- if close_button %} fade in{% endif %}">
    {% if close_button -%}
      <a class="close" data-dismiss="alert">&times;</a>
    {%- endif %}
    {% if alert_header -%}
      <h4 class="alert-heading">{{ alert_header|safe }}</h4>
    {%- endif %}

    {{ content|safe }}

  </div>
{%- endmacro %}

{% macro label(content, type='warning') -%}
  <span class="label label-{{ type }}">{{ content|safe }}</span>
{%- endmacro %}

{% macro non_field_errors(form) %}
  {% if form.non_field_errors %}
    {% for error in form.non_field_errors() %}
      {{ alert(content=error, type='error', close_button=False) }}
    {% endfor %}
  {% endif %}
{% endmacro %}

{% macro label(field) -%}
  <label class="control-label"{% if field.auto_id %}
         for="{{ field.auto_id|safe }}"{% endif %}>{{ field.label|safe }}</label>
{%- endmacro %}

{% macro input(field, input_classes=None, prepend_content=None, append_content=None, placeholder=None, autocomplete='on') -%}
  {# Helper macro for rendering the input itself #}

  {% if prepend_content %}
    <div class="input-prepend">
  {% elif append_content %}
    <div class="input-append">
  {% endif %}
{%- if prepend_content -%}
  <span class="add-on">{{ prepend_content }}</span>
{%- endif -%}

{% if placeholder %}
  {{ field(placeholder=placeholder, class=input_classes, autocomplete=autocomplete) }}
{% else %}
  {{ field|safe }}
{% endif %}

{%- if append_content -%}
  <span class="add-on">{{ append_content }}</span>
{%- endif -%}

{% if field.errors %}
  <span class="help-inline">{{ field.errors|join(' ')|safe }}</span>
{% endif %}

{% if append_content or prepend_content %}
  </div>
{% endif %}
{%- endmacro %}

{% macro field(field, classes=None, input_classes=None, prepend_content=None, append_content=None, hide_label=False, inline=False, placeholder=False, autocomplete='on') -%}
  {% if field.is_hidden %}
    {{ field|safe }}
  {% else %}
    <div class="control-group{% if field.errors %} error{% endif -%}{%- if classes %} {{ classes }}{% endif %}">
      {% if not hide_label %}
        {{ label(field) }}
      {% endif %}
      <div class="controls">

        {{ input(field, input_classes, prepend_content, append_content, placeholder, autocomplete) }}

        {% if field.description %}
          <p class="help-block">{{ field.description|safe }}</p>
        {% endif %}
      </div>
    </div>
  {% endif %}
{%- endmacro %}

{% macro date(field, hide_label=False, placeholder=False) %}
  <div class="control-group{% if field.errors %} error{% endif -%}{%- if classes %} {{ classes }}{% endif %}">
    {% if not hide_label %}
      {{ label(field) }}
    {% endif %}
    <div class="controls">
      <div class="input-append date datepicker" data-date-format="dd-mm-yyyy">
        {% if placeholder %}
          {{ field(placeholder=field.name) }}
        {% else %}
          {{ field }}
        {% endif %}
        <span class="add-on"><i class="icon-th"></i></span>
      </div>

      {% if field.errors %}
        <span class="help-inline">{{ field.errors|join(' ')|safe }}</span>
      {% endif %}
    </div>
  </div>

{% endmacro %}