24 lines
757 B
Python
24 lines
757 B
Python
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from rest_framework.serializers import ModelSerializer
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class DynamicFieldsModelSerializer(ModelSerializer):
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"""
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A ModelSerializer that takes an additional `fields` argument that
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controls which fields should be displayed.
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"""
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def __init__(self, *args, **kwargs):
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# Don't pass the 'fields' arg up to the superclass
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fields = kwargs.pop("fields", None)
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# Instantiate the superclass normally
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super().__init__(*args, **kwargs)
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if fields is not None:
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# Drop any fields that are not specified in the `fields` argument.
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allowed = set(fields)
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existing = set(self.fields)
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for field_name in existing - allowed:
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self.fields.pop(field_name)
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