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79 lines
2.1 KiB
79 lines
2.1 KiB
from rest_framework import serializers
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from rest_framework.serializers import Serializer
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from rest_framework.serializers import ModelSerializer
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from rest_framework_bulk.serializers import BulkListSerializer
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from common.mixins import BulkListSerializerMixin
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from django.utils.functional import cached_property
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from rest_framework.utils.serializer_helpers import BindingDict
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from common.mixins.serializers import BulkSerializerMixin
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__all__ = [
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'MethodSerializer',
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'EmptySerializer', 'BulkModelSerializer', 'AdaptedBulkListSerializer', 'CeleryTaskSerializer'
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]
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# MethodSerializer
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# ----------------
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class MethodSerializer(serializers.Serializer):
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def __init__(self, method_name=None, **kwargs):
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self.method_name = method_name
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super().__init__(**kwargs)
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class Meta:
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# 生成swagger时使用
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ref_name = None
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def bind(self, field_name, parent):
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if self.method_name is None:
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method_name = 'get_{field_name}_serializer'.format(field_name=field_name)
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self.method_name = method_name
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super().bind(field_name, parent)
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@cached_property
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def serializer(self) -> serializers.Serializer:
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method = getattr(self.parent, self.method_name)
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return method()
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def get_fields(self):
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return self.serializer.get_fields()
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@cached_property
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def fields(self):
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"""
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重写此方法因为在 BindingDict 中要设置每一个 field 的 parent 为 `serializer`,
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这样在调用 field.parent 时, 才会达到预期的结果，
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比如: serializers.SerializerMethodField
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"""
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fields = BindingDict(self.serializer)
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for key, value in self.get_fields().items():
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fields[key] = value
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return fields
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# Other Serializer
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# ----------------
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class EmptySerializer(Serializer):
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pass
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class BulkModelSerializer(BulkSerializerMixin, ModelSerializer):
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pass
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class AdaptedBulkListSerializer(BulkListSerializerMixin, BulkListSerializer):
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pass
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class CeleryTaskSerializer(serializers.Serializer):
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task = serializers.CharField(read_only=True)
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