Django ModelForm排除数据保存

from django import forms
from .models import MyModel

class MyModelForm(forms.ModelForm):
    class Meta:
        model = MyModel
        exclude = ['field2']

from django import forms
from .models import MyModel

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

    def save(self, commit=True):
        instance = super().save(commit=False)
        instance.field2 = None  # 排除field2字段
        if commit:
            instance.save()
        return instance

from django import forms
from .models import MyModel

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

    def clean(self):
        cleaned_data = super().clean()
        if 'field2' in cleaned_data:
            del cleaned_data['field2']  # 排除field2字段
        return cleaned_data