Question

我在Django中有一个ModelFormset。

在模板中，我遍历表单，然后遍历表单中的每个字段（我将它用于两个不同的模型）。

{%for form in formset %}
    <tr class='row{% cycle '2' '1' %}'>

        {% for hiddenfield in form.hidden_fields%}
           {{ hiddenfield }}
        {% endfor %}


        {% for field in form.visible_fields %}
            <td>{{ field.errors}}{{ field }}</td>
        {% endfor %}
        </tr>
{% endfor%}

我已将can_delete = True添加到formset_factory，现在我在最右边找到了删除复选框。

有没有办法把它放在左边，仍像以前一样遍历其他表格字段？当我遍历字段时，有没有办法让它成为第一个表单字段？

Answer 1

您可以覆盖BaseFormSet的add_fields方法，将删除字段移到前面，如下所示：

from collections import OrderedDict
from django import forms
from django.forms.formsets import BaseFormSet, formset_factory
from .models import MyModel


class MyModelForm(forms.ModelForm):
    class Meta:
        model = MyModel


class BaseMyModelFormSet(BaseFormSet):

    def add_fields(self, form, index):
        super(BaseMyModelFormSet, self).add_fields(form, index)
        # Pop the delete field out of the OrderedDict
        delete_field = form.fields.pop('DELETE')
        # Add it at the start
        form.fields = OrderedDict(
                      [('DELETE', delete_field)] + form.fields.items())


MyModelFormSet = formset_factory(MyModelForm, BaseMyModelFormSet,
                             extra=2, can_delete=True)

Answer 2

我一直得到“TypeError：只能连接列表（不是”ItemsView“）列出”上面的seddonym的建议代码。在Python 3中，有一种更简单的move an item in OrderedDict to the front方式。所以下面的代码为我完成了这项工作：

class BaseMyModelFormSet(BaseFormSet):

    def add_fields(self, form, index):
        super(BaseMyModelFormSet, self).add_fields(form, index)
        # Move the delete field to the front end
        form.fields.move_to_end('DELETE', last=False)

Django Model Formsets，更改删除选项的位置

2 个答案: