Context: I am having problem accessing fields which are validated by nested
serializers.
I have a very sample model as shown below.
For 2 of the fields I have their specific serializers. When I try to access
the data it returns all the fields except the one validated by the specific
serializers.
Models looks like this
class Sampler(models.Model):
sample_name = models.CharField(unique=True, max_length=100)
sampling_by = JSONField(max_length=100)
extractions = JSONField(max_length=100)
max_samples = models.IntegerField(default=100)
Serializers
class ExtractionsSerializer(serializers.BaseSerializer):
table_name = serializers.CharField()
extraction_type = serializers.ChoiceField(["ABC"])
dependencies = serializers.ListField(child=RecursiveField(),
allow_empty=True, required=False)
class SamplingBySerializer(serializers.BaseSerializer):
"""
Validate sampling_by
"""
def to_internal_value(self, samples):
methods = ["ABC"]
sampling_not_supported = [sample for sample in samples
if sample['by'] not in methods]
if sampling_not_supported:
raise ValidationError("{} not in
{}".format(sampling_not_supported, methods))
class SamplerSerializer(serializers.ModelSerializer):
extractions = ExtractionsSerializer()
sampling_by = SamplingBySerializer()
class Meta:
model = Sampler
fields = ('sample_name', 'database', 'schema', 'sampling_by',
'extractions', 'max_samples')
def create(self, validated_data):
return Sampler(**validated_data)
Now I do
data = {
"database": "postgresql://..",
"sampling_by":[{
"by":"ABC",
"value": ["l32=turn_the"]
}],
"max_samples":3,
"extractions" : [{
"table_name": "person",
"extraction_type": "ABC"
}]
}
sampler = SamplerSerializer(data=data)
sampler.is_valid() #Gives error. It says that `to_internal_value()`
needs to be implemented.
Any help would be appreciated! thanks
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