def delete(self, **kwargs):
resource_used_message = '''Source %s cannot be deleted because others have created mapping or references that point to it.
To delete this source, you must first delete all linked mappings and references.''' % self.uri
from concepts.models import Concept
concepts = Concept.objects.filter(parent_id=self.id)
from mappings.models import Mapping
mappings = Mapping.objects.filter(parent_id=self.id)
concept_ids = [c.id for c in concepts]
mapping_ids = [m.id for m in mappings]
from concepts.models import ConceptVersion
concept_versions = ConceptVersion.objects.filter(
versioned_object_id__in=concept_ids)
from mappings.models import MappingVersion
mapping_versions = MappingVersion.objects.filter(
versioned_object_id__in=mapping_ids)
concept_version_ids = [c.id for c in concept_versions]
mapping_version_ids = [m.id for m in mapping_versions]
# Check if concepts from this source are in any collection
from collection.models import CollectionVersion
collections = CollectionVersion.get_collection_versions_with_concepts(
concept_version_ids)
usage_summary = ''
if collections:
usage_summary = ' Concepts in collections: ' + self.join_uris(
collections) + ';'
# Check if mappings from this source are in any collection
collections = CollectionVersion.get_collection_versions_with_mappings(
mapping_version_ids)
if collections:
usage_summary = usage_summary + ' Mappings in collections: ' + self.join_uris(
collections) + ';'
# Check if mappings from this source are referred in any sources
mapping_versions = MappingVersion.objects.filter(
Q(to_concept_id__in=concept_ids)
| Q(from_concept_id__in=concept_ids)).exclude(parent_id=self.id)
if mapping_versions:
usage_summary = usage_summary + ' Mappings: ' + self.join_uris(
mapping_versions) + ';'
if usage_summary:
raise Exception(resource_used_message + usage_summary)
RawQueries().delete_source(self)
def delete(self, **kwargs):
resource_used_message = '''Source %s cannot be deleted because others have created mapping or references that point to it.
To delete this source, you must first delete all linked mappings and references.''' % self.uri
from concepts.models import Concept
concepts = Concept.objects.filter(parent_id=self.id)
from mappings.models import Mapping
mappings = Mapping.objects.filter(parent_id=self.id)
concept_ids = [c.id for c in concepts]
mapping_ids = [m.id for m in mappings]
from concepts.models import ConceptVersion
concept_versions = ConceptVersion.objects.filter(
versioned_object_id__in=concept_ids
)
from mappings.models import MappingVersion
mapping_versions = MappingVersion.objects.filter(
versioned_object_id__in=mapping_ids
)
concept_version_ids = [c.id for c in concept_versions]
mapping_version_ids = [m.id for m in mapping_versions]
# Check if concepts from this source are in any collection
from collection.models import CollectionVersion
collections = CollectionVersion.get_collection_versions_with_concepts(concept_version_ids)
usage_summary = ''
if collections:
usage_summary = ' Concepts in collections: ' + self.join_uris(collections) + ';'
# Check if mappings from this source are in any collection
collections = CollectionVersion.get_collection_versions_with_mappings(mapping_version_ids)
if collections:
usage_summary = usage_summary + ' Mappings in collections: ' + self.join_uris(collections) + ';'
# Check if mappings from this source are referred in any sources
mapping_versions = MappingVersion.objects.filter(
Q(to_concept_id__in=concept_ids) | Q(from_concept_id__in=concept_ids)
).exclude(parent_id=self.id)
if mapping_versions:
usage_summary = usage_summary + ' Mappings: ' + self.join_uris(mapping_versions) + ';'
if usage_summary:
raise Exception(resource_used_message + usage_summary)
RawQueries().delete_source(self)
