AF
Ash Framework•2mo ago
Rick

graphql subscription triggered by association

I have this subscription on the user resource 
subscriptions do
  pubsub __.Endpoint

  subscribe :current_user do
    read_action :self

    action_types [:update]
  end
end
subscriptions do
  pubsub __.Endpoint

  subscribe :current_user do
    read_action :self

    action_types [:update]
  end
end
User has one-to-one association with Preference resource, I would like to publish to that subscription when I update the associated too, can I do that via DSL or creating a change on the targets actions in that resource?
Solution:
At the moment I think the only way would be to have a change that updates the user resource as well to trigger the subscription or have 2 separate subscriptions on the client.
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3 Replies
Rick
RickOP•2mo ago
Another way that I tried was creating 2 subscriptions, one for each resource, but I got an error when trying to subscribe to both at the same time: 
subscription {
  currentUser {
    updated {
      id
    }
  }
  currentUserPreference {
    updated {
      id
    }
  }
}
subscription {
  currentUser {
    updated {
      id
    }
  }
  currentUserPreference {
    updated {
      id
    }
  }
}
And I got the error Only one field is permitted on the root object when subscribing
Solution
barnabasj
barnabasj•2mo ago
At the moment I think the only way would be to have a change that updates the user resource as well to trigger the subscription or have 2 separate subscriptions on the client.
barnabasj
barnabasj•2mo ago
You can create a feature request on GitHub, we might be able to add something to the dsl

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