neomodel
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neo4j-contrib
Create_or_update and get_or_update not working as expected
Dear community,
I am working on a project that involves Neomodel, Neo4j and Django. When I use the create_or_update and get_or_update functions, the code runs without any errors but does not create/save the data in the database. Here is how my code is built:
******Connection to db configuration: (in the settings.py file of Django): ...
NEOMODEL_NEO4J_BOLT_URL = os.environ.get('NEO4J_BOLT_URL','bolt://neo4j:neo4@localhost:7687')
******Data model of the an example node I want to create:
#Python imports from uuid import uuid4
#Third-party imports from neomodel import StructuredNode, StringProperty, IntegerProperty, UniqueIdProperty, RelationshipTo, DateProperty
#Models imports from api.models.dpstep_model import DPStep from api.models.storagehost_model import StorageHost from api.models.construct_model import Construct
class Dataset(StructuredNode):
"""
Defines node properties and relationships
Provides data serializer
"""
# Properties
uuid=StringProperty(unique_index=True, default=uuid4)
fileTemplateName=StringProperty()
userUuid=StringProperty()
crystalUuid=StringProperty()
currentPath=StringProperty(max_length=500)
generationPath=StringProperty(max_length=500)
blStartingDate=StringProperty()
beamlineName=StringProperty()
facilityName=StringProperty()
# Relationships
input_of=RelationshipTo(DPStep, 'INPUT')
stored=RelationshipTo(StorageHost, 'STORED')
belongs=RelationshipTo(Construct, 'BELONGS')
@property
def serialize(self):
"""
Serializer for node properties
"""
return {
'dataset_node_properties': {
'uuid': self.uuid,
'fileTemplateName': self.fileTemplateName,
'userUuid': self.userUuid,
'crystalUuid': self.crystalUuid,
'currentPath': self.currentPath,
'generationPath': self.generationPath,
'blStartingDate': self.blStartingDate,
'beamlineName': self.beamlineName,
'facilityName': self.facilityName,
},
}
******Code that stores the data:
@csrf_exempt def storeInput(request):
"""
Parse JSON data and call store functions for each model
"""
if request.method=='POST':
json_data=json.loads(request.body)
json_data_dataset=json_data['dataset']
try:
# Register nodes
storeParseDataset(json_data_dataset)
return JsonResponse({"Status": "INPUT SUCCESSFULLY REGISTERED"})
except :
return JsonResponse({"Status":"ERROR OCCURRED"}, safe=False)
@csrf_exempt def storeParseDataset(data):
"""
Creates nodes for each dataset with relative properties
"""
try:
dataset=Dataset.get_or_create(uuid=data['uuid'],
userUuid=data['userUuid'],
crystalUuid=data['crystalUuid'],
currentPath=data['currentPath'],
generationPath=data['generationPath'],
fileTemplateName=data['fileTemplateName'],
blStartingDate=data['blStartingDate'],
beamlineName=data['beamlineName'],
facilityName=data['facilityName'])
return dataset.serialize
except:
print(sys.exc_info()[0])
return ({"STATUS": "ERROR OCCURRED WHILE REGISTERING DATASET"})
******JSON data sent to API via Postman:
{ "dataset": { "uuid": "ec2ae6be-b290-4836-8fd5-92bcc6180a95", "fileTemplateName": "chPAP-PAP_CD028443_C4-1_Z381421864_w1_1_", "userUuid": "bc7613ad-d407-4f54-928a-9ca570b1f636", "crystalUuid": "747d0196-6ebd-4dff-b19b-dd2b8ad82d25", "currentPath": "/crimsXdata/CRIMS-ARCHITECTURE/IMAGES/marquez/2021/20210128_id23eh2/P-43782/X-35442/D-3867/", "generationPath": "/crimsXdata/CRIMS-ARCHITECTURE/IMPORT/DATASETS/chPAP/20210128_id23eh2/chPAP/chPAP-PAP_CD028443_C4-1_Z381421864", "blStartingDate": 20210128, "beamlineName": "ID23eh2", "facilityName": "ESRF" } }
Thank you for any help, Please do tell if any information is missing!
@yorgomoubayed if you have a repo you can share with us it might speed things up (ok if not)
It's right here https://github.com/neo4j-contrib/neomodel/blob/bfeae3e10498006dc0aae6bab2885a3c0f194dc3/neomodel/core.py#L370