Neomodel cypher query missing positional argument

Question

I'm trying to query my Employee model with .cypher within my Django view. I've used this query elsewhere, so I know that part works.

query_string = "MATCH (n)-[r:REPORTS_TO|BRANCH_OF|OVERSEEN_BY]->() RETURN n, r"

query_results = Employee.cypher(
    self = Employee, 
    query = query_string, 
    params = None)

***   ERROR _pre_action_check() 
      missing 1 required positional argument: 'action'

This error points to line 204 here:

https://github.com/neo4j-contrib/neomodel/blob/master/neomodel/core.py

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I've tried:

• action=cypher
• action='cypher'
• self=neomodel
• self=django-neomodel
• self=cypher

Also, if I try to follow the documentation by defining the cypher call within the model and then calling it in the view... I still get the same error

https://neomodel.readthedocs.io/en/latest/cypher.html

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UPDATE: full trace here https://i.sstatic.net/hPs3B.jpg

Answer 1

The fact that you're calling this method with three positional args seems wrong.

The method signature is:

def cypher(self, query, params=None):

-self is already provided by your Employee. prefix. (WRONG, see below)

-query should just be passed in as positional query_string argument

-params=None is simply passing the default value, which is useless.

Have you tried Employee.cypher(query_string) ?

Based on what Tezra said, you need an instance of Employee:

employee = Employee()

Then call employee.cypher(query_string)