Hi Guys,
Im running into an issue using neomodel in my flask project.
When i'm trying to setup a relationship between 2 classes i keep running into the ClassAlreadyDefined exceptions. I suspect the problem is that I import the object in the controller. How can i overcome the exception? Feel free to ask any other information if necessary.
neomodel.exceptions.ClassAlreadyDefined: Class modules.crm.models.WorkOrder.WorkOrder with labels WorkOrder already defined:
{frozenset({'Customer'}): <class 'crm.models.Customer.Customer'>, frozenset({'WorkOrder'}): <class 'crm.models.WorkOrder.WorkOrder'>}
Models:
from neomodel import StringProperty, RelationshipFrom, ZeroOrMore, StructuredNode
from utilities.database.neo4j.BaseModel import BaseModel
class Customer(BaseModel):
__label__ = "Customer"
# Properties
title = StringProperty(required=True)
remarks = StringProperty()
# Relations
workorders = RelationshipFrom("modules.crm.models.WorkOrder.WorkOrder", "BELONGS_TO_CUSTOMER")
def as_dict(self):
return {
'id': self.uuid,
'title': self.title,
'remarks': self.remarks
}
from neomodel import StringProperty, RelationshipTo, One, StructuredNode
from utilities.database.neo4j.BaseModel import BaseModel
class WorkOrder(BaseModel):
__label__ = "WorkOrder"
# Properties
title = StringProperty()
customer_appointed_responsible = StringProperty()
remarks = StringProperty()
# Relations
customer = RelationshipTo("modules.crm.models.Customer.Customer", "BELONGS_TO_CUSTOMER")
def as_dict(self):
return {
'id': self.uuid,
'title': self.title,
'customer_appointed_responsible': self.customer_appointed_responsible,
'remarks': self.remarks
}
Controllers:
from flask.json import jsonify
from flask_cors import cross_origin
from crm.controllers.Controller import crm_blueprint
from crm.models.Customer import Customer
from utilities.project.NestedBlueprint import NestedBlueprint
customers_crm_blueprint = NestedBlueprint(crm_blueprint, 'customers')
@customers_crm_blueprint.route('', methods=['GET'])
@cross_origin()
def customers_index():
customers = Customer.nodes.all()
ret = list()
for customer in customers:
ret.append(customer.as_dict())
return jsonify(ret)
from flask.json import jsonify
from flask_cors import cross_origin
from crm.controllers.Controller import crm_blueprint
from crm.models.WorkOrder import WorkOrder
from utilities.project.NestedBlueprint import NestedBlueprint
workorders_crm_blueprint = NestedBlueprint(crm_blueprint, 'workorders')
@workorders_crm_blueprint.route('', methods=['GET'])
@cross_origin()
def workorders_index():
workorders = WorkOrder.nodes.all()
ret = list()
for workorder in workorders:
ret.append(workorder.as_dict())
return jsonify(ret)
