在forms.ModelForm使用request.POST

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在form.ModelForm中使用request.POST中的数据，关键词：args

class ThisForm(forms.ModelForm):
    class Meta:
        model = ThisModel
        fields = '__all__'

    def __init__(self, *args, **kwargs):
        self.iscommit = False
        if len(args) > 0:
            if args[0].get('_commit') is not None:
                self.iscommit = True
        super(MatchInitForm, self).__init__(*args, **kwargs)

    def clean(self):
        if self.iscommit:
            # 数据校验
            raise forms.ValidationError(
                    "数据校验。"
                )

因，forms.ModelForm的声明如下：

class ModelForm(six.with_metaclass(ModelFormMetaclass, BaseModelForm)):
    pass

又，BaseModelForm的 init方法：

def __init__(self, data=None, files=None, auto_id='id_%s', prefix=None,
                 initial=None, error_class=ErrorList, label_suffix=None,
                 empty_permitted=False, instance=None):
    # 其他省略
    pass

在ThisForm在View中的初始化：

form = ThisForm(request.POST)
# 即data = request.POST

转载于:https://my.oschina.net/Ashkandi/blog/624805