Django模板关键字`choice_value`在1.11中不再起作用 [英] Django template keyword `choice_value` in no longer work in 1.11

问题描述

模板中有多个复选框，如果渲染中包含值，则默认情况下将选中该选项。

There is a multiple checkbox in template, if value contain in render the choice will checked by default. It works well with 1.10.

form.py：

class NewForm(forms.Form):
    project = forms.ModelMultipleChoiceField(
        widget=forms.CheckboxSelectMultiple, 
        queryset=Project.objects.filter(enable=True)
    )

模板：

{% for p in form.project %}
<label for="{{ p.id_for_label }}">
    <input type="checkbox" name="{{ p.name }}" id="{{ p.id_for_label }}"
        value="{{ p.choice_value }}"
        {% if p.choice_value|add:"0" in form.project.initial %} checked{% endif %}>
    <p>{{ p.choice_label }}</p>
</label>
{% endfor %}

views.py：

def order_start(request, order_id):
    if request.method == 'POST':
        form = NewForm(request.POST)
        if form.is_valid():
            order.end_time = timezone.now()
            order.save()
            order.project = form.cleaned_data['project']
            order.save()
            return HttpResponsec(order.id)
    else:
        form = NewForm(initial={
            'project': [p.pk for p in order.project.all()],
        })

    return render(request, 'orders/start.html', {'form': form, 'order': orderc})

当我升级到Django 1.11时， {{p.name}} 和 {{p.choice_value}} 不返回任何内容。我知道1.11已删除 choice_value ，但是如何解决此问题？

When I upgrade to Django 1.11, {{ p.name }} and {{ p.choice_value }} return nothing. I know 1.11 has removed choice_value, but how to solve this problem?

1.10 https://docs.djangoproject.com/en/1.10/_modules/django/forms/widgets/

1.11 https：// docs .djangoproject.com / zh-CN / 1.11 / _modules / django / forms / widgets /

推荐答案

为@L_S'的评论。我用 dir（form）进行调试，所有包含在 form.project.data 中的值是正确的代码：

As @L_S 's comments. I debug with dir(form), all value contained in form.project.data here's the correct code:

{% for choice in form.project %}
<labelc for="{{ choice.id_for_label }}">
    <input type="checkbox" name="{{ choice.data.name }}" id="{{ choice.id_for_label }}" 
    value="{{ choice.data.value }}"{% if choice.data.selected %} checked{% endif %}>
    {{ choice.data.label }}
</label>
{% endfor %}

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