1.7.18. Errors drop (up)
示例： 获取所有错误
{% for error in form.errors %}
attribute: {{ error.attribute }}
...
{% endfor %}1.7.18.1. 方法
1.7.18.1.1. empty?
如果没有错误，返回 true
{% if form.errors == empty %}
Congratulations! You have no errors!
{% endif %}1.7.18.1.2. present?
如果有错误，返回 true
{% if form.errors == present %}
Sorry, there were some errors.
{% endif %}