55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
from urllib import unquote_plus
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from django.shortcuts import get_object_or_404
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from django.core.exceptions import ObjectDoesNotExist
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from models import DocumentMetadata, MetadataType
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def decode_metadata_from_url(url_dict):
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metadata_dict = {
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'id':{},
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'value':{}
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}
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metadata_list = []
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#Match out of order metadata_type ids with metadata values from request
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for key, value in url_dict.items():
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if 'metadata' in key:
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index, element = key[8:].split('_')
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metadata_dict[element][index] = value
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#Convert the nested dictionary into a list of id+values dictionaries
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for order, id in metadata_dict['id'].items():
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if order in metadata_dict['value'].keys():
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metadata_list.append({'id':id, 'value':metadata_dict['value'][order]})
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return metadata_list
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def save_metadata_list(metadata_list, document):
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for item in metadata_list:
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if item['value']:
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save_metadata(item, document)
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else:
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try:
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metadata_type = MetadataType.objects.get(id=item['id'])
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document_metadata = DocumentMetadata.objects.get(document=document,
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metadata_type=metadata_type)
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document_metadata.delete()
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except ObjectDoesNotExist:
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pass
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def save_metadata(metadata_dict, document):
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#Use matched metadata now to create document metadata
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document_metadata, created = DocumentMetadata.objects.get_or_create(
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document=document,
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metadata_type=get_object_or_404(MetadataType, pk=metadata_dict['id']),
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)
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#Handle 'plus sign as space' in the url
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#unquote_plus handles utf-8?!?
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#http://stackoverflow.com/questions/4382875/handling-iri-in-django
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document_metadata.value=unquote_plus(metadata_dict['value'])#.decode('utf-8')
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document_metadata.save()
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