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serializers.py
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serializers.py
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from rest_framework import serializers
from rest_framework.fields import CharField, SerializerMethodField, BooleanField, IntegerField
from core.common.constants import HEAD
from core.common.serializers import ReadSerializerMixin
class ParameterCodingSerializer(ReadSerializerMixin, serializers.Serializer):
system = CharField()
code = CharField()
class PartParameterSerializer(ReadSerializerMixin, serializers.Serializer):
name = CharField()
valueString = CharField(required=False)
valueCoding = ParameterCodingSerializer(required=False)
valueBoolean = BooleanField(required=False)
valueUri = CharField(required=False)
valueCode = CharField(required=False)
class ParameterSerializer(ReadSerializerMixin, serializers.Serializer):
name = CharField()
part = PartParameterSerializer(many=True, required=False)
valueString = CharField(required=False)
valueCoding = ParameterCodingSerializer(required=False)
valueBoolean = BooleanField(required=False)
valueUri = CharField(required=False)
valueCode = CharField(required=False)
valueInteger = IntegerField(required=False)
class ParametersSerializer(ReadSerializerMixin, serializers.Serializer):
resourceType = SerializerMethodField(method_name='get_resource_type')
parameter = ParameterSerializer(many=True)
allowed_input_parameters = {}
@staticmethod
def get_resource_type(_):
return 'Parameters'
@classmethod
def parse_query_params(cls, query_params):
parameters = []
for key, value in query_params.items():
if key in cls.allowed_input_parameters:
parameters.append(
{
'name': key,
cls.allowed_input_parameters[key]: value
}
)
if parameters:
return cls(data={'parameter': parameters})
return cls(data={'parameter': []})
def to_internal_value(self, data):
parameters = {}
for parameter in data.get('parameter', []):
name = parameter.get('name', None)
if name:
value = parameter.get(self.allowed_input_parameters.get(name, None), None)
if value:
parameters[name] = value
return {'parameters': parameters}
@classmethod
def from_concept(cls, concept):
source = concept.sources.filter(is_latest_version=True).exclude(version=HEAD).first()
if not source:
source = concept.sources.filter(is_latest_version=True).first()
parameters = {
'parameter': [
{
'name': 'name',
'valueString': source.name
},
{
'name': 'version',
'valueString': source.version
},
{
'name': 'display',
'valueString': concept.name if concept.name else concept.display_name
}
]
}
return cls(parameters)