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44 lines
1.5 KiB
Python
44 lines
1.5 KiB
Python
from django.conf import settings
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from i18nfield.fields import I18nCharField, I18nTextField
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from i18nfield.strings import LazyI18nString
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from rest_framework.exceptions import ValidationError
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from rest_framework.fields import Field
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from rest_framework.serializers import ModelSerializer
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class I18nField(Field):
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def __init__(self, **kwargs):
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self.allow_blank = kwargs.pop('allow_blank', False)
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self.trim_whitespace = kwargs.pop('trim_whitespace', True)
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self.max_length = kwargs.pop('max_length', None)
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self.min_length = kwargs.pop('min_length', None)
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super().__init__(**kwargs)
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def to_representation(self, value):
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if value is None or value.data is None:
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return None
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if isinstance(value.data, dict):
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return value.data
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else:
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return {
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settings.LANGUAGE_CODE: str(value.data)
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}
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def to_internal_value(self, data):
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if isinstance(data, str):
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return LazyI18nString(data)
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elif isinstance(data, dict):
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if any([k not in dict(settings.LANGUAGES) for k in data.keys()]):
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raise ValidationError('Invalid languages included.')
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return LazyI18nString(data)
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else:
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raise ValidationError('Invalid data type.')
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class I18nAwareModelSerializer(ModelSerializer):
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pass
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I18nAwareModelSerializer.serializer_field_mapping[I18nCharField] = I18nField
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I18nAwareModelSerializer.serializer_field_mapping[I18nTextField] = I18nField
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