Flask app

Question

我想在一个部分中显示带有“错误”类别的flashed messages，而在另一部分中显示未分类的邮件。如果我只是询问消息with_categories=False，我也会收到带有“错误”类别的消息。最好，我不想在我的所有邮件中添加类别。如何获取所有未分类的消息？

flash('You did something wrong', 'error')
flash('Hello')

{% with messages = get_flashed_messages(with_categories=false) %}
    {% for message in messages %}
        {{message}}
    {% endfor %}
{% endwith %}
{% with messages = get_flashed_messages(category_filter=['error']) %}
    {% for message in messages %}
        {{message}}
    {% endfor %}
{% endwith %}

输出

You did something wrong
Hello
You did something wrong

我希望

Hello
You did something wrong

Answer 1

All messages have the default category 'message'.获取这些消息，然后获取其他消息。

{% with messages = get_flashed_messages(category_filter=['message']) %}