20 lines
577 B
Python
20 lines
577 B
Python
from django.utils.translation import ugettext_lazy as _
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from .models import MetadataType
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class DocumentMetadataHelper(object):
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@staticmethod
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@property
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def constructor(source_object):
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return DocumentMetadataHelper(source_object)
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def __init__(self, instance):
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self.instance = instance
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def __getattr__(self, name):
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try:
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return self.instance.metadata.get(metadata_type__name=name).value
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except MetadataType.DoesNotExist:
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raise AttributeError(_(u'\'metadata\' object has no attribute \'%s\'') % name)
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