83 lines
4.1 KiB
Python
83 lines
4.1 KiB
Python
from __future__ import absolute_import
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import logging
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from django.dispatch import receiver
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from django.utils.translation import ugettext_lazy as _
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from acls.api import class_permissions
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from common.classes import ModelAttribute
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from common.utils import encapsulate
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from documents.models import Document, DocumentType
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from documents.signals import post_document_type_change
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from navigation.api import register_links, register_model_list_columns
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from navigation.links import link_spacer
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from project_setup.api import register_setup
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from rest_api.classes import APIEndPoint
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from .api import get_metadata_string
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from .classes import DocumentMetadataHelper, DocumentTypeMetadataTypeHelper
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from .links import (metadata_add, metadata_edit, metadata_multiple_add,
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metadata_multiple_edit, metadata_multiple_remove,
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metadata_remove, metadata_view,
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setup_document_type_metadata,
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setup_document_type_metadata_required,
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setup_metadata_type_create, setup_metadata_type_delete,
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setup_metadata_type_edit, setup_metadata_type_list)
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from .models import DocumentMetadata, MetadataType
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from .permissions import (PERMISSION_METADATA_DOCUMENT_ADD,
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PERMISSION_METADATA_DOCUMENT_EDIT,
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PERMISSION_METADATA_DOCUMENT_REMOVE,
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PERMISSION_METADATA_DOCUMENT_VIEW)
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logger = logging.getLogger(__name__)
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@receiver(post_document_type_change, dispatch_uid='post_post_document_type_change_metadata', sender=Document)
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def post_post_document_type_change_metadata(sender, instance, **kwargs):
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logger.debug('received post_document_type_change')
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logger.debug('instance: %s', instance)
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# Delete existing document metadata
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for metadata in instance.metadata.all():
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metadata.delete(enforce_required=False)
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# Add new document type metadata types to document
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for metadata_type in instance.document_type.metadata_type.filter(required=True):
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DocumentMetadata.objects.create(document=instance, metadata_type=metadata_type, value=None)
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@property
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def document_metadata(document):
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return document.document_metadata.select_related('metadata_type')
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DocumentType.add_to_class('metadata_type', DocumentTypeMetadataTypeHelper.constructor)
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Document.add_to_class('metadata', document_metadata)
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Document.add_to_class('metadata_value_of', DocumentMetadataHelper.constructor)
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register_links(['metadata:metadata_add', 'metadata:metadata_edit', 'metadata:metadata_remove', 'metadata:metadata_view'], [metadata_add, metadata_edit, metadata_remove], menu_name='sidebar')
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register_links(Document, [metadata_view], menu_name='form_header')
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register_links([Document], [link_spacer, metadata_multiple_add, metadata_multiple_edit, metadata_multiple_remove], menu_name='multi_item_links')
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register_links(DocumentType, [setup_document_type_metadata, setup_document_type_metadata_required])
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register_links(MetadataType, [setup_metadata_type_edit, setup_metadata_type_delete])
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register_links([MetadataType, 'metadata:setup_metadata_type_list', 'metadata:setup_metadata_type_create'], [setup_metadata_type_list, setup_metadata_type_create], menu_name='secondary_menu')
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register_setup(setup_metadata_type_list)
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class_permissions(Document, [
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PERMISSION_METADATA_DOCUMENT_ADD, PERMISSION_METADATA_DOCUMENT_EDIT,
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PERMISSION_METADATA_DOCUMENT_REMOVE, PERMISSION_METADATA_DOCUMENT_VIEW,
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])
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register_model_list_columns(Document, [
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{
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'name': _(u'Metadata'), 'attribute': encapsulate(lambda x: get_metadata_string(x))
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},
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])
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APIEndPoint('metadata')
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ModelAttribute(Document, 'document_metadata__metadata_type__name', label=_('Metadata type name'), type_name='query')
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ModelAttribute(Document, 'document_metadata__value', label=_('Metadata type value'), type_name='query')
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ModelAttribute(Document, 'document_metadata', type_name='related', description=_('Queryset containing a MetadataType instance reference and a value for that metadata type'))
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ModelAttribute(Document, 'metadata_value_of', label=_('Value of a metadata'), description=_('Return the value of a specific document metadata'), type_name=['property', 'indexing'])
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