QueryBuilder: How to build nested queries?

[deiga]

Most GQL APIs have nested objects and I'm puzzled by how to build these queries.
Here is an example of getting trying to get Pull Requests from the Github API:

String queryString = DSL.buildQuery {
    query('repository', [owner: 'foobar', name: 'baz']) {
      returns {
        query('pullRequests', [first: 10, headRefName: 'master', state: ['OPEN']]) {
          returns {
            totalCount
          }
        }
      }
    }
  }

But this generates a string like "{ pullRequests (first: 10,headRefName: \"master\",state: [OPEN]) { \n \ttotalCount\n } \n repository (owner: \"foobar\",name: \"baz\") { \n } \n }"
Which is clearly incorrect. I tried without the returns for the upper query, but it's a required field

[mariogarcia]

@deiga I'll look into it