How to make a Django Model form Readonly?

问题

I have a django form name "SampleForm". Which i use to take input from user. Now i want to use same form to show this information to user on a different page. But form is editable I want to make the form read only. Is there any way to make whole form Readonly ?

回答1:

pseudo-code (not tested):

class ReadOnlyFormMixin(ModelForm):
    def __init__(self, *args, **kwargs):
        super(ReadOnlyFormMixin, self).__init__(*args, **kwargs)
        for key in self.fields.keys():
            self.fields[key].widget.attrs['readonly'] = True

    def save(self, *args, **kwargs):
        # do not do anything
        pass

class SampleReadOnlyForm(ReadOnlyFormMixin, SampleForm):
    pass

回答2:

class SampleForm(ModelForm):
    def __init__(self, *args, **kwargs):
        super(SampleForm, self).__init__(*args, **kwargs)
        instance = getattr(self, 'instance', None)
        if instance and instance.pk:
            for field in self.fields.keys():
                self.fields[field].widget.attrs['readonly'] = True

Just this should make the entire form readonly whenever an instance is available for the form.

回答3:

Working Code

class ReadOnlySampleForm(SampleForm):
def __init__(self, *args, **kwargs):
    super(SampleForm, self).__init__(*args, **kwargs)
    for key in self.fields.keys():
        self.fields[key].widget.attrs['readonly'] = True

来源：https://stackoverflow.com/questions/32248575/how-to-make-a-django-model-form-readonly