django - 使用 Django Crispy Forms 渲染单独的 MultiWidget 字段

Question

我的具体情况是，我需要在一行中呈现此字段(使用 Bootstrap 3):

所以类似:

<div class="form-group">
    <label>Amount:</label>
    <div class="row">
        <input name="amount_0" type="number" class="col-xs-8">
        <select name="amount_1" class="col-xs-4">...</select>
    </div>
</div>

使用:https://github.com/jakewins/django-money
小部件:https://github.com/jakewins/django-money/blob/master/djmoney/forms/widgets.py

型号:

from djmoney.models.fields import MoneyField

class MyModel(models.Model):
    ...
    amount = MoneyField(...)
    ...

表格:

class MyForm(forms.ModelForm):
    ...
    @property
    def helper(self):
        helper = FormHelper()
        helper.form_tag = False

        helper.layout = Layout()
        helper.layout.fields = [
            ...
            'amount',
            ...
        ]

        return helper
    ...

Answer 1

django-crispy-forms不处理字段小部件的渲染，django处理那个。与django.forms.MultiWidget相同。
django-crispy-forms不会单独渲染 MultiWidget 中的每个字段。

参见:django.forms.MultiWidget.format_output(rendered_widgets)

这是如何将 MultiWidget 渲染到 twitter-bootstrap-3 Django 1.10-中的列:

from djmoney.forms.widgets import MoneyWidget


class CustomMoneyWidget(MoneyWidget):
    def format_output(self, rendered_widgets):
        return ('<div class="row">'
                    '<div class="col-xs-6 col-sm-10">%s</div>'
                    '<div class="col-xs-6 col-sm-2">%s</div>'
                '</div>') % tuple(rendered_widgets)


class BookingForm(forms.ModelForm):
    ...
    def __init__(self, *args, **kwargs):
        super(BookingForm, self).__init__(*args, **kwargs)

        amount, currency = self.fields['amount'].fields

        self.fields['amount'].widget = CustomMoneyWidget(
            amount_widget=amount.widget, currency_widget=currency.widget)
    ...

对于 Django 1.11+:

由于 change ，您需要使用new template api 。相反，您的自定义货币小部件应如下所示:

class CustomMoneyWidget(MoneyWidget):
    template_name = 'widgets/money.html'

使用模板 Money.html

<div class="row">
    <div class="col-xs-6 col-sm-10">
        {% with widget=widget.subwidgets.0 %}
            {% include widget.template_name %}
        {% endwith %}
    </div>
    <div class="col-xs-6 col-sm-2">
        {% with widget=widget.subwidgets.1 %}
            {% include widget.template_name %}
        {% endwith %}
    </div>
</div>