102 lines
5.4 KiB
Python
102 lines
5.4 KiB
Python
from __future__ import unicode_literals
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import logging
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from django import apps
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from django.db.models.signals import post_delete, post_save
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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 import (
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menu_facet, menu_multi_item, menu_object, menu_secondary, menu_setup,
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menu_sidebar, menu_tools
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)
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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_model_list_columns
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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
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from .links import (
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link_metadata_add, link_metadata_edit, link_metadata_multiple_add,
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link_metadata_multiple_edit, link_metadata_multiple_remove,
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link_metadata_remove, link_metadata_view, link_setup_document_type_metadata,
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link_setup_document_type_metadata_required, link_setup_metadata_type_create,
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link_setup_metadata_type_delete, link_setup_metadata_type_edit,
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link_setup_metadata_type_list, link_documents_missing_required_metadata
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)
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from .models import DocumentMetadata, DocumentTypeMetadataType, MetadataType
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from .permissions import (
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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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from .tasks import task_add_required_metadata_type, task_remove_metadata_type
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logger = logging.getLogger(__name__)
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def post_document_type_metadata_type_add(sender, instance, created, **kwargs):
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logger.debug('instance: %s', instance)
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if created and instance.required:
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task_add_required_metadata_type.apply_async(kwargs={'document_type_id': instance.document_type.pk, 'metadata_type_id': instance.metadata_type.pk}, queue='metadata')
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def post_document_type_metadata_type_delete(sender, instance, **kwargs):
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logger.debug('instance: %s', instance)
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task_remove_metadata_type.apply_async(kwargs={'document_type_id': instance.document_type.pk, 'metadata_type_id': instance.metadata_type.pk}, queue='metadata')
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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 document_type_metadata_type in instance.document_type.metadata.filter(required=True):
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DocumentMetadata.objects.create(document=instance, metadata_type=document_type_metadata_type.metadata_type, value=None)
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class MetadataApp(apps.AppConfig):
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name = 'metadata'
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verbose_name = _('Metadata')
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def ready(self):
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APIEndPoint('metadata')
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Document.add_to_class('metadata_value_of', DocumentMetadataHelper.constructor)
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ModelAttribute(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__metadata_type__name', label=_('Metadata type name'), type_name='query')
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ModelAttribute(Document, 'metadata__value', label=_('Metadata type value'), type_name='query')
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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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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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menu_facet.bind_links(links=[link_metadata_view], sources=[Document])
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menu_multi_item.bind_links(links=[link_metadata_multiple_add, link_metadata_multiple_edit, link_metadata_multiple_remove], sources=[Document])
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menu_object.bind_links(links=[link_setup_document_type_metadata, link_setup_document_type_metadata_required], sources=[DocumentType])
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menu_object.bind_links(links=[link_setup_metadata_type_edit, link_setup_metadata_type_delete], sources=[MetadataType])
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menu_secondary.bind_links(links=[link_setup_metadata_type_list, link_setup_metadata_type_create], sources=[MetadataType, 'metadata:setup_metadata_type_list', 'metadata:setup_metadata_type_create'])
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menu_setup.bind_links(links=[link_setup_metadata_type_list])
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menu_sidebar.bind_links(links=[link_metadata_add, link_metadata_edit, link_metadata_remove], sources=['metadata:metadata_add', 'metadata:metadata_edit', 'metadata:metadata_remove', 'metadata:metadata_view'])
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menu_tools.bind_links(links=[link_documents_missing_required_metadata])
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post_save.connect(post_document_type_metadata_type_add, dispatch_uid='post_document_type_metadata_type_add', sender=DocumentTypeMetadataType)
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post_delete.connect(post_document_type_metadata_type_delete, dispatch_uid='post_document_type_metadata_type_delete', sender=DocumentTypeMetadataType)
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post_document_type_change.connect(post_post_document_type_change_metadata, dispatch_uid='post_post_document_type_change_metadata', sender=Document)
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register_model_list_columns(Document, [
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{
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'name': _('Metadata'), 'attribute': encapsulate(lambda x: get_metadata_string(x))
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},
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])
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