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Handle html empty value for many relation

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This commit is contained in:
Nicolas Christiaens 2024-03-18 09:29:28 +01:00
parent 337ba211e8
commit d7ea7ba591
1 changed files with 7 additions and 2 deletions
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9
rest_framework/relations.py
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@ -142,7 +142,8 @@ class RelatedField(Field):
kwargs['child'] = cls()
return CustomManyRelatedField(*args, **kwargs)
"""
list_kwargs = {'child_relation': cls(*args, **kwargs)}
html_empty_value = kwargs.pop('html_empty_value', None)
list_kwargs = {'child_relation': cls(*args, **kwargs), 'html_empty_value': html_empty_value}
for key in kwargs:
if key in MANY_RELATION_KWARGS:
list_kwargs[key] = kwargs[key]
@ -492,6 +493,7 @@ class ManyRelatedField(Field):
def __init__(self, child_relation=None, *args, **kwargs):
self.child_relation = child_relation
self.allow_empty = kwargs.pop('allow_empty', True)
self.html_empty_value = kwargs.pop('html_empty_value', None)
cutoff_from_settings = api_settings.HTML_SELECT_CUTOFF
if cutoff_from_settings is not None:
@ -514,7 +516,10 @@ class ManyRelatedField(Field):
if self.field_name not in dictionary:
if getattr(self.root, 'partial', False):
return empty
return dictionary.getlist(self.field_name)
data = dictionary.getlist(self.field_name)
if self.html_empty_value is not None:
data = [item for item in data if item != self.html_empty_value]
return data
return dictionary.get(self.field_name, empty)