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Move required attribute logic to FileInput for initial data

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Ensure FileInput omits the required attribute when initial data exists, preventing unnecessary validation for already uploaded files.

Fixes unexpected required field behavior when editing existing file fields.
This commit is contained in:
utkarsh.arya@zomato.com 2025-11-15 22:57:35 +00:00
parent 53d8646f79
commit 2f4def432d
2 changed files with 9 additions and 3 deletions
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6
django/forms/widgets.py
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@ -387,6 +387,9 @@ class FileInput(Input):
def value_omitted_from_data(self, data, files, name):
return name not in files
def use_required_attribute(self, initial):
return super().use_required_attribute(initial) and not initial
FILE_INPUT_CONTRADICTION = object()
@ -451,9 +454,6 @@ class ClearableFileInput(FileInput):
return False
return upload
def use_required_attribute(self, initial):
return super().use_required_attribute(initial) and not initial
def value_omitted_from_data(self, data, files, name):
return (
super().value_omitted_from_data(data, files, name) and

6
tests/forms_tests/widget_tests/test_fileinput.py
View file

@ -18,3 +18,9 @@ class FileInputTest(WidgetTest):
def test_value_omitted_from_data(self):
self.assertIs(self.widget.value_omitted_from_data({}, {}, 'field'), True)
self.assertIs(self.widget.value_omitted_from_data({}, {'field': 'value'}, 'field'), False)
def test_use_required_attribute(self):
# False when initial data exists. The file input is left blank by the
# user to keep the existing, initial value.
self.assertIs(self.widget.use_required_attribute(None), True)
self.assertIs(self.widget.use_required_attribute('resume.txt'), False)