def neo4j_dataset_annotations(request):
"""Query Neo4J for dataset annotations per user
"""
if request.user.username:
user_name = request.user.username
else:
user_name = get_anonymous_user().username
url = urljoin(settings.NEO4J_BASE_URL,
'ontology/unmanaged/annotations/{}'.format(user_name))
headers = {
'Accept': 'application/json; charset=UTF-8',
'Accept-Encoding': 'gzip,deflate',
'Content-type': 'application/json'
}
params = {'objectification': 2}
try:
response = requests.get(url, params=params, headers=headers)
response.raise_for_status()
except HTTPError as e:
logger.error(e)
except requests.exceptions.ConnectionError as e:
logger.error('Neo4J seems to be offline.')
logger.error(e)
return HttpResponse('Neo4J seems to be offline.',
mimetype='text/plain',
status=503)
return HttpResponse(response, mimetype='application/json')
def push_users(self):
datasets = DataSet.objects.all()
graph = py2neo.Graph(
urlparse.urljoin(settings.NEO4J_BASE_URL, 'db/data'))
tx = graph.cypher.begin()
statement_user = (
"MERGE (u:User {id:{user_id}, name:{user_name}}) WITH u "
"MATCH (ds:DataSet {uuid:{ds_uuid}}) "
"MERGE (ds)<-[:`read_access`]-(u)")
public_group_id = ExtendedGroup.objects.public_group().id
for dataset in datasets:
owner = dataset.get_owner()
users = [{'id': owner.id, 'name': str(owner)}]
groups = dataset.get_groups()
# Collect all users per group
for group in groups:
users += map(lambda u: {
'id': u.id,
'name': str(u)
}, group['group'].user_set.all())
# We need to add an anonymous user so that people who haven't
# logged in can still see some visualization.
if group['group'].id is public_group_id:
users += [{
'id': settings.ANONYMOUS_USER_ID,
'name': get_anonymous_user().username
}]
for user in users:
tx.append(
statement_user, {
'user_id': user['id'],
'user_name': user['name'],
'ds_uuid': dataset.uuid
})
tx.process()
tx.commit()
def push_users(self):
datasets = DataSet.objects.all()
graph = py2neo.Graph(urlparse.urljoin(settings.NEO4J_BASE_URL, "db/data"))
tx = graph.cypher.begin()
statement_user = (
"MERGE (u:User {id:{user_id}, name:{user_name}}) WITH u "
"MATCH (ds:DataSet {uuid:{ds_uuid}}) "
"MERGE (ds)<-[:`read_access`]-(u)"
)
public_group_id = ExtendedGroup.objects.public_group().id
for dataset in datasets:
owner = dataset.get_owner()
users = [{"id": owner.id, "name": str(owner)}]
groups = dataset.get_groups()
# Collect all users per group
for group in groups:
users += map(lambda u: {"id": u.id, "name": str(u)}, group["group"].user_set.all())
# We need to add an anonymous user so that people who haven't
# logged in can still see some visualization.
if group["group"].id is public_group_id:
users += [{"id": settings.ANONYMOUS_USER_ID, "name": get_anonymous_user().username}]
for user in users:
tx.append(statement_user, {"user_id": user["id"], "user_name": user["name"], "ds_uuid": dataset.uuid})
tx.process()
tx.commit()
