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Form field with fixed value

Author:
roam
Posted:
December 2, 2025
Language:
Python
Version:
5.2
Score:
0 (after 0 ratings)

In case you need a form field that only has one acceptable value, you can create a custom form field derived from forms.ChoiceField which only accepts one choice.

Alternatively you can:

  • Ignore the value of such a field entirely.
  • Simply pass a single choice to a the forms.ChoiceField
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from django import forms

class FixedField(forms.ChoiceField):
    def __init__(self, *, value, **kwargs):
        kwargs["choices"] = [(value, value)]
        super().__init__(**kwargs)

class SampleForm(forms.Form):
    expected = FixedField(value="predefined")

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