Many to many relationship auto creation

Users GraphQL
1

Hello,
I am new to dGraph and run into such a problem.

This is my schema:

type Person  {
	email: String! @search(by:[fulltext]) @id
	name: String @search(by:[fulltext])
	member_of: [Organization] @hasInverse(field: has_member)
}

type Organization  {
	id: ID!
	name: String @search(by:[fulltext])
	has_member: [Person] @hasInverse(field: member_of)
}

Person can be in many Organizations and Organization can have many People.

Now, when I perform adding Person:

{
    "email": "test@email5",
    "name": "test5",
    "member_of": [
        { "name":  "org5" }
    ]
}

it will create new Person and new Organization.
Now when I perform query to get all People it will respond correctly:

{
        "name": "test5",
        "email": "test@email5",
        "member_of": [
            {
                "id": "0x2719",
                "name": "org5"
            }
        ]
    },

but analogous query to get all Organizations lacks of relationships:

{
        "id": "0x2719",
        "name": "org5",
        "has_member": []
    },

.

Analogous add Organization mutation works fine as I am providing email of Person which is actually id od Person:

{
    "name": "org6",
    "has_member": [ {"email": "test@email6"} ]
}

results in:

{

        "id": "0x271c",

        "name": "test6",

        "has_member": [

            {

                "email": "test@email6"

            }

        ]

    }

.
So it seems that to properly create new nodes with relationship we need to provide id.
Why it is not handled automatically?

[ENVIRONMENT]

PS C:\Users\developer\Desktop\dgraph-windows-amd64> .\dgraph.exe version
[Decoder]: Using assembly version of decoder
Page Size: 4096

Dgraph version   : v20.11.1
Dgraph codename  : tchalla-1
Dgraph SHA-256   : f254ac1544b4bbea79bd4d199ab27c970294b4484ec067b5ce3febc2892dd108
Commit SHA-1     : 7153d13fe
Commit timestamp : 2021-01-28 15:59:35 +0530
Branch           : HEAD
Go version       : go1.15.5
jemalloc enabled : false

For Dgraph official documentation, visit https://dgraph.io/docs/.
For discussions about Dgraph     , visit http://discuss.dgraph.io.

Licensed variously under the Apache Public License 2.0 and Dgraph Community License.
Copyright 2015-2020 Dgraph Labs, Inc.
2

I believe it is handled automatically. Here’s what I did:

mutation M {
  addPerson(input: {email: "test@email5", name: "test5",    member_of: [{ name:  "org5" }]}) {
    numUids
  }
}

This was correctly executed.

Then I ran the Person query:

query QP {
  queryPerson(filter: {email: {eq: "test@email5"}}) {
    email
    name
    member_of{
      id
      name
    }
  }
}

The result is

{
"queryPerson": [
      {
        "email": "test@email5",
        "name": "test5",
        "member_of": [
          {
            "id": "0x7537",
            "name": "org5"
          }
        ]
      }
    ]
}

When I ran the Organization query

query Q {
  queryOrganization(filter: {name: {alloftext: "org5"}}) {
    name
    id
    has_member {
      email
      name
      member_of {
        id
        name
      }
    }
  }
}

I also got the correct answer:

{
"queryOrganization": [
      {
        "name": "org5",
        "id": "0x7537",
        "has_member": [
          {
            "email": "test@email5",
            "name": "test5",
            "member_of": [
              {
                "id": "0x7537",
                "name": "org5"
              }
            ]
          }
        ]
      }
    ]
}

Can I know what version of Dgraph you are using?

3

Updated original post. Added [ENVIRONMENT] section.

4

Can I also have the exact queries/mutations you ran?

5

I think they are same like your.
Mutation Person:

mutation addPerson($obj: AddPersonInput!) {
	addPerson(input: [$obj]) {
		person {
			name
			email
            member_of {
                id
                name
            }
		}
	}
}

with obj

{
    "email": "test@email5",
    "name": "test5",
    "member_of": [
        { "name":  "org5" }
    ]
}

and mutation Organization:

mutation addOrganization($obj: AddOrganizationInput!) {
	addOrganization(input: [$obj]) {
		organization {
            id
			name
            has_member {
                email
            }
		}
	}
}

with obj

{
    "name": "test6",
    "has_member": [ {"email": "test@email6"} ]
}

.

Queries are the most simple ones. You can use yours as they also do not work for me.