Question

我收到此错误 “ render_field”标记需要一个表单字段，其后是attr =“ value”形式的属性和值列表：

我正在尝试使用Django的Widget Tweaks来呈现表单。一旦页面加载到浏览器中，它将给出错误并突出显示{% render_field field class ="form-control is-valid" %}行

{% extends 'base.html' %}

{% load widget_tweaks %}


{% block title %}

New Topic: {{board.name}} - {{board.super}}

{% endblock %}

{% block breadcrumb %}
        <li class="breadcrumb-item"><a href="{% url 'home' %}">Boards</a></li>
        <li class="breadcrumb-item"><a href="{% url 'board_topics' board.pk %}">{{board.name}}</a></li>
        <li class="breadcrumb-item active">New Topic<li>
{% endblock %}

    {% block content %}

   <form method="post" novalidate >
        {% csrf_token %}

       {% for field in form %}

           <div class = "form-group" >

               {{field.label_tag}}

               {% if form.is_bound %}
                    {% if field.errors %}
                        {% render_field field class="form-control is-invalid" %}
                        {% for error in field.errors %}
                            <div class="invalid-feedback">
                                {{error}}
                            </div>
                        {% endfor %}
                    {% else %}
                        {% render_field field class ="form-control is-valid" %}
                    {% endif %}
                   {% else %}
                    {% render_field field class ="form-control" %}
                   {% endif %}
                   {% if field.help_text %}
                     <small class="form-text text-muted" >
                        {{ field.help_text }}
                     </small>
                   {% endif %}

           </div>

       {% endfor %}
        <button type ="submit" class="btn btn-success">Post</button>

    </form>

    {% endblock %}

This must render the form with bootstrap styles.

Answer 1

我找到了答案。 “ class”关键字和等号之间有多余的空格。这是导致问题的原因。当我消除它可以解决问题时。

代替{% render_field field class ="form-control is-valid" %}

我刚刚将其更改为{% render_field field class="form-control is-valid" %}

Django Widget调整'render_field'标签中的错误需要一个表单字段，其后是attr =“ value”：

1 个答案: