Patch method not working for id in nested model serializer

user_12877988 0
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I have two models , and I want to update them. When I update a field except ID ,it works fine. However, I can not update ID field of matrix cell object shown below.Also, I see ID field in get method.

class MatrixSerializer(serializers.ModelSerializer):
    matrix_cell = MatrixCellSerializer(many=True)

    class Meta:
        model = Matrix
        fields = ["id", ......, "matrix_cell"] 

   def update(self):
      for m in matrix_cells:
          m.get("id") #this return None
          m.get("name") #but this works


class MatrixCellSerializer(serializers.ModelSerializer):
    class Meta:
        model = MatrixCell
        fields = "__all__"
django-rest-framework python-3.x django-models django python
1 Answers

I added id = serializers.CharField() to my MatrixCell serializer , and problem fixed.

class MatrixCellSerializer(serializers.ModelSerializer):
    id = serializers.CharField()

    class Meta:
        model = MatrixCell
        fields = "__all__"
user_128779880
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