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    <p>As pointed out in <a href="https://stackoverflow.com/questions/324477/in-a-django-form-how-do-i-make-a-field-readonly-or-disabled-so-that-it-cannot/34538169#34538169">this answer</a>, Django 1.9 added the <a href="https://docs.djangoproject.com/en/1.9/ref/forms/fields/#disabled" rel="noreferrer">Field.disabled</a> attribute:</p> <blockquote> <p>The disabled boolean argument, when set to True, disables a form field using the disabled HTML attribute so that it won’t be editable by users. Even if a user tampers with the field’s value submitted to the server, it will be ignored in favor of the value from the form’s initial data.</p> </blockquote> <p>With Django 1.8 and earlier, to disable entry on the widget and prevent malicious POST hacks you must scrub the input in addition to setting the <code>readonly</code> attribute on the form field:</p> <pre><code>class ItemForm(ModelForm): def __init__(self, *args, **kwargs): super(ItemForm, self).__init__(*args, **kwargs) instance = getattr(self, 'instance', None) if instance and instance.pk: self.fields['sku'].widget.attrs['readonly'] = True def clean_sku(self): instance = getattr(self, 'instance', None)   if instance and instance.pk:     return instance.sku   else:     return self.cleaned_data['sku'] </code></pre> <p>Or, replace <code>if instance and instance.pk</code> with another condition indicating you're editing. You could also set the attribute <code>disabled</code> on the input field, instead of <code>readonly</code>.</p> <p>The <code>clean_sku</code> function will ensure that the <code>readonly</code> value won't be overridden by a <code>POST</code>.</p> <p>Otherwise, there is no built-in Django form field which will render a value while rejecting bound input data. If this is what you desire, you should instead create a separate <code>ModelForm</code> that excludes the uneditable field(s), and just print them inside your template.</p>
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    1. POIn a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
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    1. USDaniel Naab
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    1. POIn a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
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    1. CODaniel, Thanks for posting an answer. It is not clear to me how to use this code? wouldn't this code work for same for new as well update mode? Can you edit your answer to give examples on how to use it for new and update forms? Thanks.
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    2. COThe key to Daniel's example is testing the .id field. Newly created objects will have id==None. By the way, one of the oldest open Django tickets is about this issue. See http://code.djangoproject.com/ticket/342 .
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      1. USPeter Rowell
    3. CObut what about foreignkey fields.It is not for foreignkey
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