Interface not working in 2.7.0

[michal-trnka]

Hello, I got possible issue with neo4j-graphql-js after upgrade to 2.7.0. This is minimal “non-working” code

schema definition:

interface Location {
  name: String!
  parentLocation: Location
}

type City implements Location{
  name: String!
  parentLocation: Location @relation(name: "CHILD_OF", direction: OUT)
}

type Country implements Location{
  name: String!
  parentLocation: Location @relation(name: "CHILD_OF", direction: OUT)
}

type Company @isAuthenticated {
  name: String!
  locations: [Location!]! @relation(name: "LOCATED_IN", direction: OUT)
}

query:

{
  first: Company(name: "Enerdat-S FZ LLC") {
    name
    locations {
      __typename
      ... on Country {
        name
      }
      ... on City {
        name
      }
    }
  }
}

Problems:
version 2.7.0
TypeError: Cannot read property 'astNode' of undefined at getAdditionalLabels (/MyPath/node_modules/neo4j-graphql-js/dist/utils.js:571:52)

my debugging - interfaceLabel is undefined. It has disappeared from selection.js file between last two commits without a commit removing the line.

It seems like the merge commit: bf3758ba johnymontana <lyonwj@gmail.com> on 2019-08-13 at 00:35 did not merge translate.js correctly. It returned to using interfaceLabel (eg. line 184), but file selections.js is not sending this variable anymore (as changed in f243e650 Laurens Lavaert <llavaert@gmail.com> on 2019-07-06 at 09:26 to allow multiple inline statements)

version 2.6.3
“working” - it takes first inline fragment and uses only it, I though that this problem was addressed in issue#270 and that’s why I upgraded to new one.

[johnymontana]

I'm closing this as the fix PR was merged and released in v2.7.1, but please reopen if you see this problem again.