Relay fetch for recursive data without ids returns null

[shahankit]

I have a recursive data structure to be fetched and displayed. I have a graph ql type as follow:

human {
  name,
  children: [human]
}

Now I wanted to incrementally fetch data and hence used to react classes HumanList and HumanItem, where I've used relay to fetch children only when a item is clicked. In my actual code relay gives children a null on very click i.e. on rendering very first set of children. I tried test code on relay playground and found similar issue. Here is the link to gist. Playground.js contains the code part and Playground.gql.js contains schema part.

I've already checked #246 and #536 but none of them helped.

[josephsavona]

Thanks for your question!

We want to make sure to keep signal strong in the GitHub issue tracker – to make sure that it remains the best place to track issues that affect the development of Relay.

Questions like yours deserve a purpose-built Q&A forum. Would you like to post this question to Stack Overflow with the tag #relayjs? We'll be happy to answer there. Post a link to your Stack Overflow question here, to so that we don't lose track of it.

https://stackoverflow.com/questions/ask?tags=relayjs

[shahankit]

I created a stackoverflow for same here. Any insights to issue are greatly welcome or temporary work around for issue if possible.

[josephsavona]

Thanks! Let's move discussion to the SO question.

[shahankit]

@josephsavona This is actually a bug, so can you please reopen the issue.

[josephsavona]

@shahankit just saw your SO comment - yeah this looks like a bug. I suspect this has to do with the fact that the schema doesn't use the Node interface, which means calls to fetch recursive data can't use node(id: $id) calls. We'll keep this open to track work on a fix, but as a workaround I would suggest implementing Node and see if that helps.

[steveluscher]

You were right all along. This was a bug. Fixed in #1243

[shahankit]

@steveluscher thanks.