在init方法中设置Django ModelForm中所有字段的属性

Question

我有一个Django ModelForm，可以在form __init__()方法中设置某些表单属性。

class MyForm(forms.ModelForm):

    class Meta:
        model = MyModel
        exclude = ['datecreated', 'datemodified']

    def __init__(self, *args, **kwargs):
        super(MyForm, self).__init__(*args, **kwargs)
        self.fields['field1'].widget.attrs['class'] = 'class1'
        self.fields['field2'].widget.attrs['class'] = 'class1'
        self.fields['field3'].widget.attrs['class'] = 'class1'
        # override Google Chrome field error issues making form unfocusable
        self.fields['field1'].required = False
        self.fields['field2'].required = False
        self.fields['field3'].required = False

是否可以设置表格中包含的所有字段的属性，而无需为每个字段分别编写self.fields？

Answer 1

self.fields 是一个普通的字典，您可以对其值进行迭代：

for field in self.fields.values():
    field.widget.attrs['class'] = 'class1'
    field.required = False