78 lines
2.2 KiB
Python
78 lines
2.2 KiB
Python
from rest_framework import serializers
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from taggit_serializer.serializers import TagListSerializerField, TaggitSerializer
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class SingleTag(str):
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def __init__(self, *args, **kwargs):
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pass
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def __str__(self):
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return self
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class SingleTagSerializerField(serializers.Field):
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child = serializers.CharField()
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default_error_messages = {
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'not_a_str': 'Expected a string but got type "{input_type}".',
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}
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order_by = None
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def __init__(self, **kwargs):
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super(SingleTagSerializerField, self).__init__(**kwargs)
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def to_internal_value(self, value):
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if isinstance(value, str):
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if not value:
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value = ""
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if not isinstance(value, str):
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self.fail('not_a_str', input_type=type(value).__name__)
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return value
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def to_representation(self, value):
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if not isinstance(value, SingleTag):
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if not isinstance(value, str):
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value = value.name
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value = SingleTag(value)
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return value
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class CustomTagSerializer(serializers.Serializer):
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def create(self, validated_data):
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to_be_tagged, validated_data = self._pop_tags(validated_data)
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tag_object = super(CustomTagSerializer, self).create(validated_data)
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return self._save_tags(tag_object, to_be_tagged)
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def update(self, instance, validated_data):
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to_be_tagged, validated_data = self._pop_tags(validated_data)
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tag_object = super(CustomTagSerializer, self).update(
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instance, validated_data)
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return self._save_tags(tag_object, to_be_tagged)
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def _save_tags(self, tag_object, tags):
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for key in tags.keys():
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tag_values = tags.get(key)
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getattr(tag_object, key).set(*tag_values)
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return tag_object
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def _pop_tags(self, validated_data):
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to_be_tagged = {}
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import ipdb; ipdb.set_trace()
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for key in self.fields.keys():
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field = self.fields[key]
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if isinstance(field, TagListSerializerField):
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if key in validated_data:
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to_be_tagged[key] = validated_data.pop(key)
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return (to_be_tagged, validated_data)
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