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Fixes #15971: Preserve 'none' selection in filter form fields

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This commit is contained in:
Jeremy Stretch 2025-04-24 11:42:30 -04:00
parent 02f51bc11b
commit 47da880547
1 changed files with 8 additions and 1 deletions
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9
netbox/utilities/forms/fields/dynamic.py
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@ -133,6 +133,7 @@ class DynamicModelChoiceMixin:
def get_bound_field(self, form, field_name):
bound_field = BoundField(form, self, field_name)
widget = bound_field.field.widget
# Set initial value based on prescribed child fields (if not already set)
if not self.initial and self.initial_params:
@ -163,8 +164,14 @@ class DynamicModelChoiceMixin:
else:
self.queryset = self.queryset.none()
# Normalize the widget choices to a list to accommodate the "null" option, if set
if self.null_option:
widget.choices = [
(settings.FILTERS_NULL_CHOICE_VALUE, self.null_option),
*[c for c in widget.choices]
]
# Set the data URL on the APISelect widget (if not already set)
widget = bound_field.field.widget
if not widget.attrs.get('data-url'):
viewname = get_viewname(self.queryset.model, action='list', rest_api=True)
widget.attrs['data-url'] = reverse(viewname)