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models.py
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models.py
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import uuid
from django.core.exceptions import ValidationError
from django.core.validators import RegexValidator
from django.db import models, IntegrityError, transaction
from pydash import get, compact
from core.common.constants import INCLUDE_RETIRED_PARAM, NAMESPACE_REGEX, HEAD, LATEST
from core.common.mixins import SourceChildMixin
from core.common.models import VersionedModel
from core.common.utils import parse_updated_since_param, separate_version, to_parent_uri, generate_temp_version, \
encode_string, is_url_encoded_string
from core.mappings.constants import MAPPING_TYPE, MAPPING_IS_ALREADY_RETIRED, MAPPING_WAS_RETIRED, \
MAPPING_IS_ALREADY_NOT_RETIRED, MAPPING_WAS_UNRETIRED, PERSIST_CLONE_ERROR, PERSIST_CLONE_SPECIFY_USER_ERROR, \
ALREADY_EXISTS
from core.mappings.mixins import MappingValidationMixin
class Mapping(MappingValidationMixin, SourceChildMixin, VersionedModel):
class Meta:
db_table = 'mappings'
unique_together = ('mnemonic', 'version', 'parent')
indexes = [] + VersionedModel.Meta.indexes
parent = models.ForeignKey('sources.Source', related_name='mappings_set', on_delete=models.CASCADE)
map_type = models.TextField(db_index=True)
sources = models.ManyToManyField('sources.Source', related_name='mappings')
external_id = models.TextField(null=True, blank=True)
comment = models.TextField(null=True, blank=True)
versioned_object = models.ForeignKey(
'self', related_name='versions_set', null=True, blank=True, on_delete=models.CASCADE
)
mnemonic = models.CharField(
max_length=255, validators=[RegexValidator(regex=NAMESPACE_REGEX)], default=uuid.uuid4,
)
from_concept = models.ForeignKey(
'concepts.Concept', null=True, blank=True, related_name='mappings_from', on_delete=models.SET_NULL
)
to_concept = models.ForeignKey(
'concepts.Concept', null=True, blank=True, related_name='mappings_to', on_delete=models.SET_NULL
)
to_source = models.ForeignKey(
'sources.Source', null=True, blank=True, related_name='mappings_to', on_delete=models.SET_NULL
)
from_source = models.ForeignKey(
'sources.Source', null=True, blank=True, related_name='mappings_from', on_delete=models.SET_NULL
)
# new schema -- https://github.com/OpenConceptLab/ocl_issues/issues/408
from_concept_code = models.TextField(null=True, blank=True, db_index=True)
from_concept_name = models.TextField(null=True, blank=True)
from_source_url = models.TextField(null=True, blank=True, db_index=True)
from_source_version = models.TextField(null=True, blank=True)
to_concept_code = models.TextField(null=True, blank=True, db_index=True)
to_concept_name = models.TextField(null=True, blank=True)
to_source_url = models.TextField(null=True, blank=True, db_index=True)
to_source_version = models.TextField(null=True, blank=True)
logo_path = None
name = None
full_name = None
default_locale = None
supported_locales = None
website = None
description = None
OBJECT_TYPE = MAPPING_TYPE
ALREADY_RETIRED = MAPPING_IS_ALREADY_RETIRED
ALREADY_NOT_RETIRED = MAPPING_IS_ALREADY_NOT_RETIRED
WAS_RETIRED = MAPPING_WAS_RETIRED
WAS_UNRETIRED = MAPPING_WAS_UNRETIRED
es_fields = {
'id': {'sortable': True, 'filterable': True, 'exact': True},
'last_update': {'sortable': True, 'filterable': False, 'facet': False, 'default': 'desc'},
'concept': {'sortable': False, 'filterable': True, 'facet': False, 'exact': True},
'from_concept': {'sortable': False, 'filterable': True, 'facet': True, 'exact': True},
'to_concept': {'sortable': False, 'filterable': True, 'facet': True, 'exact': True},
'retired': {'sortable': False, 'filterable': True, 'facet': True},
'map_type': {'sortable': True, 'filterable': True, 'facet': True, 'exact': True},
'source': {'sortable': True, 'filterable': True, 'facet': True, 'exact': True},
'collection': {'sortable': False, 'filterable': True, 'facet': True},
'collection_owner_url': {'sortable': False, 'filterable': False, 'facet': True},
'owner': {'sortable': True, 'filterable': True, 'facet': True, 'exact': True},
'owner_type': {'sortable': False, 'filterable': True, 'facet': True},
'concept_source': {'sortable': False, 'filterable': True, 'facet': True, 'exact': True},
'from_concept_source': {'sortable': False, 'filterable': True, 'facet': True, 'exact': True},
'to_concept_source': {'sortable': False, 'filterable': True, 'facet': True, 'exact': True},
'concept_owner': {'sortable': False, 'filterable': True, 'facet': True, 'exact': True},
'from_concept_owner': {'sortable': False, 'filterable': True, 'facet': True, 'exact': True},
'to_concept_owner': {'sortable': False, 'filterable': True, 'facet': True, 'exact': True},
'concept_owner_type': {'sortable': False, 'filterable': True, 'facet': True},
'from_concept_owner_type': {'sortable': False, 'filterable': True, 'facet': True},
'to_concept_owner_type': {'sortable': False, 'filterable': True, 'facet': True},
'external_id': {'sortable': False, 'filterable': True, 'facet': False, 'exact': False},
}
@property
def mapping(self): # for url kwargs
return self.mnemonic
@property
def source(self):
return get(self, 'parent.mnemonic')
@property
def parent_source(self):
return self.parent
@property
def from_source_owner(self):
return str(get(self.get_from_source(), 'parent', ''))
@property
def from_source_owner_mnemonic(self):
return get(self.get_from_source(), 'parent.mnemonic')
@property
def from_source_owner_type(self):
return get(self.get_from_source(), 'parent.resource_type')
@property
def from_source_name(self):
return get(self.get_from_source(), 'mnemonic')
@property
def from_source_shorthand(self):
return "%s:%s" % (self.from_source_owner_mnemonic, self.from_source_name)
@property
def from_concept_url(self):
return get(self, 'from_concept.url', '')
@property
def from_concept_shorthand(self):
return "%s:%s" % (self.from_source_shorthand, self.from_concept_code)
def get_to_source(self):
if self.to_source_id:
return get(self, 'to_source')
if self.to_concept_id:
return get(self, 'to_concept.parent')
return None
def get_from_source(self):
if self.from_source_id:
return get(self, 'from_source')
if self.from_concept_id:
return get(self, 'from_concept.parent')
return None
@property
def to_source_name(self):
return get(self.get_to_source(), 'mnemonic')
@property
def to_source_owner(self):
return str(get(self.get_to_source(), 'parent', ''))
@property
def to_source_owner_mnemonic(self):
return get(self.get_to_source(), 'parent.mnemonic')
@property
def to_source_owner_type(self):
return get(self.get_to_source(), 'parent.resource_type')
@property
def to_source_shorthand(self):
return self.get_to_source() and "%s:%s" % (self.to_source_owner_mnemonic, self.to_source_name)
def get_to_concept_name(self):
return self.to_concept_name or get(self, 'to_concept.display_name')
def get_to_concept_code(self):
return self.to_concept_code or get(self, 'to_concept.mnemonic')
@property
def to_concept_url(self):
return get(self, 'to_concept.url')
@property
def to_concept_shorthand(self):
return "%s:%s" % (self.to_source_shorthand, self.get_to_concept_code())
@staticmethod
def get_resource_url_kwarg():
return 'mapping'
@staticmethod
def get_version_url_kwarg():
return 'mapping_version'
def clone(self, user=None):
mapping = Mapping(
version=generate_temp_version(),
mnemonic=self.mnemonic,
parent_id=self.parent_id,
map_type=self.map_type,
retired=self.retired,
released=self.released,
is_latest_version=self.is_latest_version,
extras=self.extras,
public_access=self.public_access,
external_id=self.external_id,
versioned_object_id=self.versioned_object_id,
to_concept_id=self.to_concept_id,
to_concept_code=self.to_concept_code,
to_concept_name=self.to_concept_name,
to_source_id=self.to_source_id,
to_source_url=self.to_source_url,
to_source_version=self.to_source_version,
from_concept_id=self.from_concept_id,
from_concept_code=self.from_concept_code,
from_concept_name=self.from_concept_name,
from_source_id=self.from_source_id,
from_source_url=self.from_source_url,
from_source_version=self.from_source_version,
)
if user:
mapping.created_by = mapping.updated_by = user
return mapping
@classmethod
def create_initial_version(cls, mapping, **kwargs):
initial_version = mapping.clone()
initial_version.save(**kwargs)
initial_version.version = initial_version.id
initial_version.released = False
initial_version.is_latest_version = True
initial_version.save()
return initial_version
def populate_fields_from_relations(self, data):
from core.concepts.models import Concept
from core.sources.models import Source
to_concept_url = data.get('to_concept_url', None)
from_concept_url = data.get('from_concept_url', None)
to_source_url = data.get('to_source_url', None)
from_source_url = data.get('from_source_url', None)
def get_concept(expression):
concept = Concept.objects.filter(uri=expression).first()
if concept:
return concept
concept = Concept.objects.filter(uri=encode_string(expression, safe='/')).first()
if concept:
return concept
parent_uri = to_parent_uri(expression)
code = expression.replace(parent_uri, '').replace('concepts/', '').split('/')[0]
return dict(mnemonic=code)
def get_source_info(parent_uri, child_uri, existing_version, concept):
if not parent_uri and not child_uri:
return existing_version, get(concept, 'parent.uri')
if parent_uri:
version, uri = separate_version(parent_uri)
else:
version, uri = separate_version(to_parent_uri(child_uri))
return version or existing_version, uri or get(concept, 'parent.uri')
to_concept_code = data.get('to_concept_code')
from_concept_code = data.get('from_concept_code')
if to_concept_code and not is_url_encoded_string(to_concept_code):
to_concept_code = encode_string(to_concept_code)
if from_concept_code and not is_url_encoded_string(from_concept_code):
from_concept_code = encode_string(from_concept_code)
if not to_concept_url and not get(self, 'to_concept') and to_source_url and (
to_concept_code or self.to_concept_code):
to_concept_code = to_concept_code or self.to_concept_code
to_concept_url = to_source_url + 'concepts/' + to_concept_code + '/'
if not from_concept_url and not get(self, 'from_concept') and from_source_url and (
from_concept_code or self.from_concept_code):
from_concept_code = from_concept_code or self.from_concept_code
from_concept_url = from_source_url + 'concepts/' + from_concept_code + '/'
from_concept = get_concept(from_concept_url) if from_concept_url else get(self, 'from_concept')
to_concept = get_concept(to_concept_url) if to_concept_url else get(self, 'to_concept')
self.from_concept_id = get(from_concept, 'id')
self.to_concept_id = get(to_concept, 'id')
self.from_concept_code = data.get(
'from_concept_code', None) or get(from_concept, 'mnemonic') or self.from_concept_code
self.from_concept_name = data.get('from_concept_name', None) or self.from_concept_name
self.to_concept_code = data.get('to_concept_code', None) or get(to_concept, 'mnemonic') or self.to_concept_code
self.to_concept_name = data.get('to_concept_name', None) or self.to_concept_name
self.from_source_version, self.from_source_url = get_source_info(
from_source_url, from_concept_url, self.from_source_version, from_concept
)
self.to_source_version, self.to_source_url = get_source_info(
to_source_url, to_concept_url, self.to_source_version, to_concept
)
self.to_source = Source.objects.filter(
models.Q(uri=self.to_source_url) | models.Q(canonical_url=self.to_source_url)
).filter(version=HEAD).first()
self.from_source = Source.objects.filter(
models.Q(uri=self.from_source_url) | models.Q(canonical_url=self.from_source_url)
).filter(version=HEAD).first()
def is_existing_in_parent(self):
return self.parent.mappings_set.filter(mnemonic__exact=self.mnemonic).exists()
@classmethod
def create_new_version_for(cls, instance, data, user):
instance.populate_fields_from_relations(data)
instance.extras = data.get('extras', instance.extras)
instance.external_id = data.get('external_id', instance.external_id)
instance.comment = data.get('update_comment') or data.get('comment')
instance.retired = data.get('retired', instance.retired)
instance.mnemonic = data.get('mnemonic', instance.mnemonic)
instance.map_type = data.get('map_type', instance.map_type)
return cls.persist_clone(instance, user)
@classmethod
def persist_new(cls, data, user):
related_fields = ['from_concept_url', 'to_concept_url', 'to_source_url', 'from_source_url']
field_data = {k: v for k, v in data.items() if k not in related_fields}
url_params = {k: v for k, v in data.items() if k in related_fields}
mapping = Mapping(**field_data, created_by=user, updated_by=user)
temp_version = generate_temp_version()
mapping.mnemonic = data.get('mnemonic', temp_version)
mapping.version = temp_version
mapping.errors = dict()
if mapping.is_existing_in_parent():
mapping.errors = dict(__all__=[ALREADY_EXISTS])
return mapping
mapping.populate_fields_from_relations(url_params)
try:
mapping.full_clean()
mapping.save()
mapping.versioned_object_id = mapping.id
mapping.version = str(mapping.id)
mapping.is_latest_version = False
if mapping.mnemonic == temp_version:
mapping.mnemonic = str(mapping.id)
parent = mapping.parent
parent_head = parent.head
mapping.public_access = parent.public_access
mapping.save()
initial_version = cls.create_initial_version(mapping)
initial_version.sources.set([parent, parent_head])
mapping.sources.set([parent, parent_head])
except ValidationError as ex:
mapping.errors.update(ex.message_dict)
except IntegrityError as ex:
mapping.errors.update(dict(__all__=ex.args))
return mapping
def update_versioned_object(self):
mapping = self.versioned_object
mapping.extras = self.extras
mapping.map_type = self.map_type
mapping.retired = self.retired
mapping.external_id = self.external_id or mapping.external_id
mapping.from_concept_id = self.from_concept_id
mapping.to_concept_id = self.to_concept_id
mapping.to_source_id = self.to_source_id
mapping.from_source_id = self.from_source_id
mapping.to_concept_code = self.to_concept_code
mapping.to_concept_name = self.to_concept_name
mapping.to_source_url = self.to_source_url
mapping.to_source_version = self.to_source_version
mapping.from_concept_code = self.from_concept_code
mapping.from_concept_name = self.from_concept_name
mapping.from_source_url = self.from_source_url
mapping.from_source_version = self.from_source_version
mapping.save()
@classmethod
def persist_clone(cls, obj, user=None, **kwargs):
errors = dict()
if not user:
errors['version_created_by'] = PERSIST_CLONE_SPECIFY_USER_ERROR
return errors
obj.version = obj.version or generate_temp_version()
obj.created_by = user
obj.updated_by = user
parent = obj.parent
parent_head = parent.head
persisted = False
prev_latest_version = None
try:
with transaction.atomic():
cls.pause_indexing()
obj.is_latest_version = True
obj.save(**kwargs)
if obj.id:
obj.version = str(obj.id)
obj.save()
obj.update_versioned_object()
versioned_object = obj.versioned_object
prev_latest_version = versioned_object.versions.exclude(id=obj.id).filter(
is_latest_version=True).first()
if prev_latest_version:
prev_latest_version.is_latest_version = False
prev_latest_version.save()
obj.sources.set(compact([parent, parent_head]))
persisted = True
cls.resume_indexing()
def index_all():
if prev_latest_version:
prev_latest_version.index()
obj.index()
transaction.on_commit(index_all)
except ValidationError as err:
errors.update(err.message_dict)
finally:
cls.resume_indexing()
if not persisted:
if obj.id:
obj.sources.remove(parent_head)
if prev_latest_version:
prev_latest_version.is_latest_version = True
prev_latest_version.save()
obj.delete()
errors['non_field_errors'] = [PERSIST_CLONE_ERROR]
return errors
@classmethod
def get_base_queryset(cls, params): # pylint: disable=too-many-branches,too-many-locals,too-many-statements
queryset = cls.objects.filter(is_active=True)
user = params.get('user', None)
org = params.get('org', None)
collection = params.get('collection', None)
source = params.get('source', None)
container_version = params.get('version', None)
mapping = params.get('mapping', None)
mapping_version = params.get('mapping_version', None)
is_latest = params.get('is_latest', None) in [True, 'true']
include_retired = params.get(INCLUDE_RETIRED_PARAM, None) in [True, 'true']
updated_since = parse_updated_since_param(params)
uri = params.get('uri', None)
latest_released_version = None
is_latest_released = container_version == LATEST
if is_latest_released:
filters = dict(user__username=user, organization__mnemonic=org)
if source:
from core.sources.models import Source
latest_released_version = Source.find_latest_released_version_by(
{**filters, 'mnemonic': source})
elif collection:
from core.collections.models import Collection
latest_released_version = Collection.find_latest_released_version_by(
{**filters, 'mnemonic': collection})
if not latest_released_version:
return cls.objects.none()
if collection:
mnemonic_criteria = cls.get_iexact_or_criteria('collection_set__mnemonic', collection)
if not container_version and not is_latest_released:
queryset = queryset.filter(mnemonic_criteria, collection_set__version=HEAD)
else:
queryset = queryset.filter(mnemonic_criteria)
if user:
queryset = queryset.filter(cls.get_iexact_or_criteria('collection_set__user__username', user))
if org:
queryset = queryset.filter(cls.get_iexact_or_criteria('collection_set__organization__mnemonic', org))
if is_latest_released:
queryset = queryset.filter(
cls.get_iexact_or_criteria('collection_set__version', get(latest_released_version, 'version'))
)
if container_version and not is_latest_released:
queryset = queryset.filter(cls.get_iexact_or_criteria('collection_set__version', container_version))
if source:
mnemonic_criteria = cls.get_iexact_or_criteria('sources__mnemonic', source)
if not container_version and not is_latest_released:
queryset = queryset.filter(mnemonic_criteria, sources__version=HEAD)
else:
queryset = queryset.filter(mnemonic_criteria)
if user:
queryset = queryset.filter(cls.get_iexact_or_criteria('parent__user__username', user))
if org:
queryset = queryset.filter(cls.get_iexact_or_criteria('parent__organization__mnemonic', org))
if is_latest_released:
queryset = queryset.filter(
cls.get_iexact_or_criteria('sources__version', get(latest_released_version, 'version'))
)
if container_version and not is_latest_released:
queryset = queryset.filter(cls.get_iexact_or_criteria('sources__version', container_version))
if mapping:
queryset = queryset.filter(mnemonic__exact=mapping)
if mapping_version:
queryset = queryset.filter(cls.get_iexact_or_criteria('version', mapping_version))
if is_latest:
queryset = queryset.filter(is_latest_version=True)
if not include_retired and not mapping:
queryset = queryset.filter(retired=False)
if updated_since:
queryset = queryset.filter(updated_at__gte=updated_since)
if uri:
queryset = queryset.filter(uri__icontains=uri)
return queryset
def is_from_same_as_to(self):
return self.from_concept_code == self.to_concept_code and self.from_source_url == self.to_source_url